Brazilian EAY, CAP and IPT designations

IPT-0 Bichinho was a single seat light monoplane,
IPT-4 Planalto was two seat light monoplane,
IPT-7 Junior was two seat cabin monoplane,
IPT-8 nine seat light transport aircraft,
IPT-9 was a twin engined five seat light transport aircraft,
IPT-10 Junior three seat cabin monoplane,
IPT-11 Bichao two seat advanced trainer,
IPT-13 two seat light monoplane
IPT-16 was single seat cantilever low wing light cabin monoplane of wooden construction powered by
one engine.

The IPT-1,2,3,5,6,12,14,15 and 17 were sailplanes.

EAY = Empresa Aeronáutica Ypiranga
CAP = Companhia Aeronáutica Paulista
IPT = Instituto de Pesquisas Tecnológicas
BRASIL


EAY-201 Ypiranga - 1935, two-seat, single-engine high-wing monoplane with enclosed cockpit and fixed undercarriage, 5 built, later developed by CAP as CAP-4

CAP-1 Planalto - 1942, two-seat, single-engine low-wing monoplane with open cockpits and fixed undercarriage, 10 built, designed by IPT

CAP-1A - see CAP-1, 1944, experimental, 1 built

CAP-2 - ?

CAP-3 Planalto - 1945, two-seat, single-engine low-wing monoplane with open cockpits and fixed undercarriage, 5 built

CAP-3A - see CAP-3, 3 built

(CAP-1, -1A, -3 and -3A also known as IPT-4 Planalto)

CAP-4 Paulistinha - 1942, two-seat, single-engine high-wing monoplane with enclosed cockpit and fixed undercarriage, built in three variants:

CAP-4A - utility, 777 built, later developed as Neiva N-56C

CAP-4B (Ambulancia) - ambulance, 2 built

CAP-4C - observation, equiped with radio set, 1 built (also known as Paulistinha Rádio or Paulistinha Observação = Paulistinha Observation)

CAP-5 Carioquinha - see CAP-4, 1945, one CAP-4A rebuilt as two-seater with side-by-side seats

CAP-6 Tufão - designed as improved Planalto, two-seat, single-engine low-wing monoplane with enclosed cockpits and retractable undercarriage, only project

CAP-7 - seven-seat (pilot + 6 passengers), twin-engine low-wing monoplane with enclosed cockpit and retractable undercarriage, inspired by Focke-Wulf Fw 58 Weihe, none built

CAP-8 - 1944, four-seat, single-engine low-wing monoplane with enclosed cockpit and fixed (retractable planned in series aircraft) undercarriage, inspired by Messerschmitt Bf 108 Taifun, only 1 built

CAP-9 Carioca - four-seat, single-engine high-wing monoplane with enclosed cockpit and fixed undercarriage, only few built (also as ambulance)


Any comments or additions are welcome.

Regards,

LAW

For these and the Muniz designs, it would be great to have the years as well. Thansk!

Merging of several posts. Feel free to add!

Photos of the IPT. 0 and IPT. 8 from FLYING, January 1950. The aircraft called the IPT. 8 Junior here is designated as the IPT. 7 in the list posted above. Who's right?

Great find Stragazer,


and here is the IPT-15 pulse jet sailplane;


http://www.secretprojects.co.uk/forum/index.php/topic,1451.msg12195.html#msg12195

Hi Star, I´m shure your second pic is a misprint. I have this about the IPT.8...

...this is the Junior (I.P.T.7) Source: Encyclopedia de Avioes Brasileiros

IPT-0 Bichinho II
The IPT-0 is a plane certified for aerobatics, with capacity for a crew member. This model was designed in 1938 by engineer Frederick A. and technician Hoover Horton, of the Polytechnic School of São Paulo, under the supervision of the Institute for Technological Research (IPT). Its construction was completed in the city of Rio Claro (SP), becoming known as Bichinho of Rio Claro. The aircraft on display (registration PT-KYL) is the model IPT-0 "Bichinho II," a total of four prototypes built in 1940 and flew until 1988, when it was deactivated and delivered to the Aerospace Museum.
Technical Specifications

Thank you my dears Maveric and Retrofit.

IPT-16 "Surubim"
This experimental aircraft was designed by engineer Joseph Kovacs, with the help of Silvio de Oliveira in 1949. It was first named "Satanàs". In 1953, the works were taking over by IPT who finihed it and named it IPT-16 "Surubim". First flight performed on the 17th of September 1959 by aerobatic pilot Alberto Bertelli.
Only one prototype built ( The one exposed at the Museu Aeroespatial of Rio de Janeiro).
Its original retractable landing gear was replaced by a fixed one in 1979 during an overhaul.
Span: 7.7m; lenght: 7m; Height: 2.1m; Engine: Hirth HM506A of 160hp; Empty weight: 440kg: Max speed: 340km/h; Range: 1050km.

Also on show at the Museu Aeroespatial of Rio de Janeiro:
CNNA HL-6B "Cauré": The CNNA HL-6B is a 2 seat airplane, for the primary pilot training. Was first flown in 1943 and was produced in series (39 units) until 1947. Planes provided good services to various Brazilian flying clubs until mid-1950s, when they were disabled.
The one on display (civil registration "PP-RHW"), equipped with a 130 hp Franklin engine, was used by the School of Engineering, Federal University of Paraná (used as an aid to instruction) until 1983, when he was sent to the Aerospace Museum .
Span: 9.8m; Lenght: 7.2m; Height: 2.04m; Engine: Lycoming O-290-C of 125 hp, 4 cylinder horizontally opposed; Empty weight: 545kg; Max speed: 200km/h; Range: 520km.
Muniz M-7: First aircraft in Brazil to reach production status (28 units built). First flight: 17th october 1935).
CAP-4A “Paulistinha” : The CAP 4A is a 2 seat plane, used for primary training. It is a development of EAY-201 "Ypiranga" (EAY - Ypiranga Aeronautics Company) that first flew in 1935. In 1943, the prototype and manufacturing rights of EAY-201 were purchased by the Company Aeronautics Paulista, who perfected the design and renamed CAP-4 "Paulistinha." This company produced a total of 777 aircraft model CAP-4A, from 1943 to 1948.
The one on display (registration number "PP-TJR") flew in flying clubs until 1970.

Hi,

there was also;

CAP-2 was a derivative of CAP-1 Planalto,maybe remained a Project

Yes, that mention of CAP-1 derivatives is repeated in several online references but never with any details about the CAP-2

Possibly off-topic but Empresa Aeronáutica Ypiranga began by building the EAY-101 glider in 1931. The prototype EAY-201 Ypiranga first flew in 1935 with a 40 hp Salmson 9 AD ... but there was no change in designation when the French radial was replaced by a 65 hp Franklin 4AC-176-B.

BTW, does anyone know if the CAP-1A was the modified prototype Planalto fitted with a 130 hp Franklin also known as the 'Tufão' (Typhoon)?

New Info for EAY-101,thank you my dear apophenia,

and for Tufao,I think it was CAP-6,please see reply # 2 .

Thanks hesham. I totally missed that CAP-6 connection

I thought it was safe to stick designations from other Brazilian firms here.

The Fábrica do Galeão was the first Brazilian state-owned aircraft producer. Planning began in 1932 with the original intention being to create a maintenance facility for the nearby Centro de Aviação Naval do Rio de Janeiro and Escola de Aviação Naval. Licenses with Focke-Wulf allowed the manufacture of complete airframes - with Fw 44s and Fw 58s assembled mainly from German-made parts. Other licenses followed.

In 1953, production of the 5 FG (Niess 1-80) ended and the Fábrica do Galeão facitlity was leased to a Dutch-Brazilian combine - Fokker Indústrias Aeronáuticas. Fokker S.11 and S.12 trainers were assembled (as FAB T-21 and T-22 Instructors). With only part of their orders filled, Fokker Indústrias Aeronáuticas went bankrupt in 1958. The Ministério da Aeronáutica then resumed control of the Fábrica do Galeão.

Between 1960 and 1962, a further 15 Fokker S.12 airframes were built by the Fábrica do Galeão. However, I can find no evidence that any 'x FG' designation was ever applied to these Fábrica do Galeão-built T-22s. By 1965, the Fábrica do Galeão had officially resumed its role as a maintenance workshop of the Força Aérea Brasileira.
___________________________________________________

Fábrica do Galeão Aircraft Designations

1 FG - Pintassilgos, licensed Focke-Wulf Fw 44, x 40
- 1 FG: Tandem 2-seat, single-engined biplane trainer
-- Brazilian Stiegelitz built in 2 batches of 20
-- Pintassilgos translates as 'Goldfinch'

2 FG - Licensed Focke-Wulf Fw 58 trainer/patrol/bomber, x ?
- 2 FG: Twin-engined Weihe, mainly German parts
-- Brazilian Weihe built in 2 batches + 2 prototypes

3 FG - Licensed Fairchild PT-19 Cornell trainer, x 220
- 3 FG: Tandem 2-seat, single-engined monoplane trainer

4 FG - 1950 experimental helicopter by Paul Baumgärtl, x 1
- 4 FG: Helicopter flew 4 times, then destroyed in a crash
- 4 FG: Same as single-seat Baumgärtl PB-63/-64 helicopters?

5 FG - 1952 Niess 1-80 high-winged 2-seat light a/c, x 68
- 5 FG: 80 x ordered but proved over-weight, only 68 built

(??) - 1958 licensed Fokker S.11 basic trainer, x 100
- (??): 1 x 190 hp Lycoming O-435A HO6, span 11.00 m
- (??): FAB designation T-21 Instructor
-- (??) Possible Galeão designation '6 FG' (??)

(??) - 1958 licensed Fokker S.12 basic trainer, x 15
- (??): 1 x 190 hp Lycoming O-435A HO6, span 11.00 m
-(??) : FAB designation T-22 Instructor
-- (??) Possible Galeão designation '7 FG' (??)

8 FG - 1964 'Guanabara' 2-seat lightplane, x 1
- 8 FG: Conv. from licensed Fokker T-22 Instructor
- 8 FG: 1 x 190 hp Lycoming O-435A HO6, span 11.00 m
- 8 FG: T-22 mod, tricycle landing gear, new canopy

Next up are the designations of Marc William Niess. And there are plenty of gaps here!

It is tricky finding much bio info on Niess. He was of German parentage but I can't find a birth date. Having graduated from the Escola Politécnica in 1940, Eng. Niess was employed as an engineer at the Companhia Aeronáutica Paulista (CAP) in 1941-1942. There he worked on the CAP-3 Planalto and CAP-4 Paulistinha designs. From 1942 to 1945, Neiss was employed by the Companhia Nacional de Navegação Aérea (CNNA) at Rio de Janeiro before returning to CAP (1945-1948).

After CAP shut down, Niess began work on his first original design - the Paulistinha-inspired Niess 1-80 prototype. By his own account, late in life, Niess claimed to have created 30 original aircraft designs.

Reportedly, Marc Niess was somewhat bitter in later years about his relative lack of standing in Brazil's aviation community. Today his is regarded as an aeronautical pioneer. Niess was made a Comendador (Commander) of the Ordem do Mérito Aeronáutico (Order of Aeronautical Merit) by the FAB. Alas, this belated recognition came after Niess' death in November 2011.
__________________________________________________________________

Aircraft Designations of Engenheiro Marc Niess

Niess 1-80 - 1950 high-winged 2-seat light aircraft, x 68
- 1-80 : Side-by-side seating, steel-tube fuselage
- 1-80 : 1950 prototype, fabric-covered wooden wings, x 1
- 1-80 : 1 x 80 hp Continental A85 HO4, span 9.60 m
- 1-80A: Mod. prototype, 1 x 85 hp Continental C85 HO4
- 5 FG : Prod. vers.; desig. for 5th Fábrica do Galeão type
- 5 FG : 1 x 85 hp Continental C85 HO4, span 9.60 m
- 5 FG : Plywood coverings instead of prototype's fabric
- 5 FGA: Plywood repl. by fabric to reduce weight, 2 x conv.
- AJAF-1: 2010 mod. 5 FG, PU-HFF for Osvaldo Marimon Neto

Niess 2-100 - 1952 high-winged STOL light a/c, x 2
- 2-100: 2-seats side-by-side, 2 x prototypes
- 2-100: 1 x 100 hp Lycoming 0-235, span 6.54 m
-- Fixed tricycle u/c, slightly fwd-swept wings

Niess 3-150 - (Project) High-winged 4-seat tourer
- 3-150: All-metal constr., forward-swept wings
- 3-150: 1 x 150 hp Lycoming C-320, span 9.64 m
- 3-150: Incorp. Niess 'Anéis'* around doors
-- * 'Anéis Elíticos de Sobrevivência de Niess'
-- * Safety features meant to impr. 'crashability' [1]
-- Fixed tricycle u/c; planned to build in Minas

Niess 4-200 - (Project) High-winged 4-seat tourer
- 4-200: Possibly higher-powered 3-150 derivative

Niess 5-250 - (Project) High-winged 4-seat tourer
- 5-250: Possibly higher-powered 3-150 derivative

Niess 6-250 - (Project) 'Cadillac Voador' trainer
- 6-250: Forerunner of 7-250 Fragata (qv)
- 6-250: 1 x 250 hp Lycoming O-540-A1A HO6, span (??) m
-- 'Cadillac Voador' name = 'Flying Cadillac'

Niess 7-250 - (Project) Fragata 2-seat trainer
- 7-250: Tandem seating, all-metal construction
- 7-250: 1 x 250 hp Lycoming O-540-A1A HO6, span (??) m
- 7-250: Constr'n almost complete late 1964, cancelled
-- Intended for advanced pilot and armaments training
-- Fragata translates as 'Frigate Bird'

Niess 8-300 - (Project) Side-by-side training aircraft
- 8-300: Low-winged, retr. u/c, low tail, see reply #26
- 8-300 : 1 x 300 hp (??) engine, span (??) m
-- hesham speculated this may be N.C. Bi [2]

Niess 9-80 -- (Project) Single-seater, metal-construction
- 9-80 : Incorporating Anéis de Niess in construction

Niess 10-180 - (Project) high-winged 4-seat light a/c
- 10-180: 1 x 180 hp (or 200 hp) Lycoming, span (??) m
-- hesham speculated this might be Zangão [3]

Niess 11-180 - (Project) 4-seater, metal-construction
- 11-180: High-winged safety plane with Niess 'rings'
- 11-180: 1 x 180 hp Lycoming O-360 HO4, span (??) m

Niess 12-300 - (Project) 6-seater, metal-construction
- 12-300: 1 x 300 hp HO6 or turboprop, span (??) m
- 12-300: Incorporating Anéis de Niess in constr'n

Niess 13 - (??)

Niess 14 - (Project) Cauré I single-seat light a/c
- 14 : 1 x (??)* hp 1.6L Volkswagen HO4, span 9.15 m
- 14 : Wooden constr., ply-, fabric-, and fibreglass-covered
-- Cauré translates as Bat Falcon (Falco rufigularis)
-- * Ratings for aircraft VW 1600s vary - 48 to 58 hp

Niess 15-150 - (Project) low-winged single-seat light a/c
- 15-150: Aerobatic a/c, 1 x 150 hp Lycoming, span (??) m

Niess 16-100 - (Project) low-winged single-seat light a/c
- 16-100: Aerobatic a/c, 1 x 100 hp/115 hp Lycoming, span (??) m

Niess 17-35 - Marreco single-seat ultralight aircraft
- 17-35: High-wing, underslung fuselage, boom tail
- 17-35: 1 x 30-35 hp Yamaha tractor, span (??) m
- 17-35: Anéis de Niess proof-of-concept a/c*
-- * The 'Niess Rings' form the fuselage 'pod' sides
-- Marreco translates as Mallard (or Widgeon)
-- http://i27.photobucket.com/albums/c175/jambock/UltraleveMarreco.jpg

Niess 18-35 - (Project) Asseta 01, single-seat ultralight
- 18-35: Similar to Niess 17-35, 1 x 35 hp RM.1000, span (??) m

Niess 19-65 - (Project) 2-seat variant of single-seat Niess 18-35
- 19-65: 1 x 65 hp Rotax 582 UL 2-stroke 2-cylinder, span (??) m

Niess 20-40 - (Project) Super Marreco single-seat ultralight

Niess 21-200 - (Project) 1988 Pick Up high-winged utility a/c
- 21-200: 1 x 200 hp Avco Lycoming IO-360-CIC HO4, span (??) m

Niess 22-65 - (Project) 1991 single-seat, single-engine ultralight
- 22-65: 1 x 65 hp Volkswagen 1.6L HO4, span (??) m
_______________________________________________

[1] The 'Anéis Elíticos de Sobrevivência de Niess' or 'Niess Elliptical Survival Rings' were meant to improve survivability in the case of aircraft crash landings (although the concept has also been applied to automotive design. Also called, Anéis de Niess, this concept was tested on the Niess 18-35 ultralight - built at the Universidade Federal de São Carlos when Niess was a professor.

[2] https://www.secretprojects.co.uk/threads/niess-brazilian-aircraft-and-projects.23704/#post-449760

I have my doubts. The N.C. Bi project failed when Niess' co-designer, Romeu Corsini, dropped out. Niess found that he could not proceed on his own. Why would Niess apply his own designation system to a failed joint project?

BTW, Romeu Corsini, had been a co-developer of the CAP-4 Paulistinha. But, although Prof. Corsini was involved with many aircraft designs at the Divisão de Aeronáutica of the IPT, he was primarily an academic - including being a founder of the Escola de Engenharia at São Carlos.

[3] maveric's additions show that 10-180 was a fixed-wing design with no connection to the Zangão gyrocopter. BTW, zangão means either bumblebee or June bug.

Niess 8-300 side-by-side training aircraft with 300HP unknown powerplant

Niess 10-180 Aviao quadriplace with one Lycoming 180/200HP, high wing

Niess 15-150 Aviao monoplace acrobatico, low wing with 150HP Lycoming

Niess 16-100 Aviao monoplace acrobatico, low wing with 100/115HP Lycoming

Niess 18-35 "Asseta 01", single-seat ultralight like the Niess 17-35M with 35HP RM.1000

Niess 19-65 single-seat biplace version oh the Niess 18-35

Niess 20-40 "Super Marreco", single-seat monoplace ultralight with Rotax 65HP

Niess 21-200 "Pick Up", 1988, high wing utility aircraft with one Avco Lycoming IO.360CIC (200HP)

Niess 22-65 1991, single-seat ultralight with one VW (65HP)

other Niess projects:
Niess "Zangao" 1980 girocopter
Niess AG-1A-150 agricultural plane
Niess AG-1A-150/Modificado agricultural plane
Niess "Atibaia" 1982, single-seat high-wing ultralight
Niess "Cauré II" 1977, high-wing biplance
Niess "Melania 1" Niees 17-35M with floats, one VW with 76HP
Niess-Corsini NC Bi touring low-wing with twin-boom, two Lycoming like Cessna "Skymaster"
Niess-Corsini NC Bi Modificado
Niess-Corsini NC-1 transport like Avro 748 with two Turboméca "Bastan IV"
Niess-Muzzio 1 1988, amphibium
Niess "Tracer" 1987, two-seat ultralight (no project)
Niess "Biplano" 1988 light aircraft with 65HP VW
Niess "Biplano-Mono" light aircraft with 65HP VW
Niess "Twin Booms" light aircraft, high-wing with twin-booms
Niess/EWM 1991 biplace high-wing with Lycoming 115HP

Thank you dear Maveric,

and for Corsini;

Please what is your source ?.

Roberto Pereira - Enciclopédia de Avioes Brasileiros

Wow! Excellent stuff maveric!

I'm wondering about the 'Avião' applied to the 10-180, 15-150, and 16-100. I put it in 'single quotes' assuming it to be a generic description ... rather than Niess naming his airplane 'Airplane'

Another assumption would be that the 17-35's powerplant would be that same RM.1000 as on the related 18-35?

no, that's not a name, so no quotation marks

For the 17-35 the book says Yamaha with 30HP.

An example from the book, the Niess 8-300.

Apophenia said:

(??) - 1958 licensed Fokker S.12 basic trainer, x 15
- : 1 x 190 hp Lycoming O-435A HO6, span 11.00 m
- : FAB designation T-22 Instructor

Click to expand...

From, Enciclopedia de Avioes Brasileiros

From, Enciclopedia de Avioes Brasileiros.

Nice sources guys!!

As my dear Rolf discovered;

View: https://twitter.com/BRPlanes/status/1563546160190484480/photo/2

I decided to flesh-out the IPT designation list. No real type additions but a bit more detail and a few corrections made.

Instituto de Pesquisas Tecnológicas - São José dos Campos, Brazil

As the name 'Institute for Technological Research' suggests, IPT was never intended to be a manufacturer of aircraft. Instead, IPT was mandated to function as an experimental developer - of airframes, propellers, and more basic investigation of those Brazilian woods which will be suitable for aircraft construction. This was prompted by engenheiro Frederico Brotero who, in 1934, published 'Emprego de madeiras nacionais em aviação' ('The Use of Native Woods in Aviation').

It was planned that prototype aircraft would be developed at IPT. Suitable candidates would then enter series production at the Companhia Aeronáutica Paulista - CAP being formed for that purpose. An example of that arrangement was the CAP-1 trainer series based on the IPT-4 Planalto prototype. Note, though, that the wooden propellers used by CAP were manufactured by the IPT workshops (just to confuse matters).

IPT engineers favoured the development of sailplanes as such airframes best tested the research and woodworking skills of the Seção de Madeiras e Aeronáutica. That seção later become the IPT Divisão de Aeronáutica. This section/division was responsible for the creation of at least 20 different prototypes and development types - gliders, sailplanes, and powered aircraft.

IPT Designation Sesquence

The first IPT designation was retroactively applied. Construction of a small single-seater was begun at the Escola Politécnica before being mover to Rio Claro for completion. Dubbed the Bichinho de Rio Claro (the little 'pet' of Rio Claro); this prototype was retroactively designated IPT-0 (presumably after work had already begun on the IPT-1 design).

As a design group, the IPT's Divisão de Aeronáutica survived until 1957 (at which point, the use of wood in airframe construction and propeller-making was seen as being dated). So, technically, 1957 is when the IPT designation series ends. The IPT-17 Laminar is usually given as the final IPT design. However, both that 1960 experimental sailplane and the 1959 IPT-16 Surubim saw the light of day after the closing of the Divisão de Aeronáutica.

After IPT's Divisão de Aeronáutica was gone, eng. Romeu Corsini headed the design team at the Departamento Aeroviário do Estado de São Paulo (DAESP, which existed as a state government department until 2022). This state of São Paulo government connection explains why the final designations are prefixed 'SP'. I've included those 'SP' designations for completion ... since they continue the IPT numerical sequence.

_______________________________________________

Instituto de Pesquisas Tecnológicas IPT Designations

IPT-0 Bichinho - 1934-40 aeroclub aerobatic trainer; x 4
- IPT-0 : Single-seater; low-wing cantilever monoplane
- IPT-0 : All wood-construction using Brazilian timbers [1]
- IPT-0 : Prototype; 1 x 63 hp Walter Mikron 4-cylinder
-- Prototype PP-THH; cockpit canopy; fully-spatted u/c
- IPT-0A: Bichinho; open cockpit; HO4; PP-ECM; x 1
- IPT-0A: 1 x 75 hp Continental A75 HO4; span 6.80 m
- IPT-0B: Bichinho II; open cockpit; HO4; PT-KYL; x 1
- IPT-0B: 1 x 75 hp Continental A75 HO4; span 6.80 m
- IPT-0C: Bichinho II; more power; sliding canopy; x 1
- IPT-0C: 1 x 85 hp Continental C-85-12F; PP- ZPA/PT-AOA
-- 1938 design by F. A. Brotero & technican Orthon Hoover
-- NB: Some sources list IPT-0A (x 1) & IPT-0B (x 2) types
-- Bichinho translates as 'pet'; in ref. to its small size
-- https://www2.fab.mil.br/musal/index.php/aeronaves-em-exposicao/55-avioes/325-bichinho

IPT-1 Gafanhoto - 1942 basic training/school glider; x 2
- IPT-1 : Single-seat on open truss-framed* fuselage
- IPT-1 : Wingspan 10.35 m;** wing area 15.30 m2
-- Some sources list span as 10.32 m; others 15.35 m
- IPT-1 : Wings mounted too high led to stalling
-- Design by eng. Frederico Abranches Brotero
-- Wing pedestal & tail boom were actually box-beams
-- Gafanhoto translates as 'grasshopper'

IPT-2 Aratinga - 1942 single-seat training sailplane, x 1
- IPT-2 : 'Bubble' canopy; shoulder-mounted wings
- IPT-2 : Wingspan 10.00 m; wing area 8.70 m2
-- Design by Sílvio de Oliveira & Clay Presgrave do Amaral
-- IPT-2 sold to eng. José Carlos de Barros Neiva
-- Aratinga is the genus name for parakeets/conures

IPT-3 Saracura - 1942 primary training glider; x 1
- IPT-3 : Single-seat on open truss-framed* fuselage
- IPT-3 : Wingspan 9.80 m; wing area 13.70 m2
- IPT-3 : DFS Zögling-style (or copy?) school glider
- Companhia Aeronáutica Paulista built 20-to-30
-- * Simpler, strut-braced structure comp. w/ IPT-1
-- The saracura-do-mato is the woodland rail

IPT-4 Planalto - 1942 tandem 2-seat trainer; x 21*
- IPT-4 : Low-wing monoplane; fixed/spatted main u/c
- IPT-4 : 1 x 90 hp Franklin 4AC HO4; span 8.60 m
- IPT-4 : Open cockpit; IPT-designed fixed wing slots
- CAP-1 : Planalto; Companhia Aeronáutica Paulista
-- * 1 x IPT-4 prototype + 20 x CAP-1 prod'n aircraft

IPT-5 Jaraguá - 1941 2-seat trainer sailplane, x 1
- IPT-5 : High-perf. sailplane; side-by-side seating
- IPT-5 : Wingspan 17.00 m;* wing area 16.00 m2
- IPT-5 : Mid-winged; semi-monocoque fuselage**
-- * Some sources give IPT-5 wingspan as 15.00 m
-- ** Unbroken line w/ glazed, hemispherical nose
-- By Romeu Corsini under Clay Presgrave do Amaral
-- Named for the Brazilian city of Jaraguá do Sul

IPT-6 Stratus - 1944 single-seat sailplane trainer, x 1
- IPT-6 : Adv. trainer; experimental competition glider
- IPT-6 : Span 15.00 m; wing area 16.00 m2; PT-PAJ
- IPT-6 : Semi-monocoque fuselage; strut-braced wings
-- Design by Estonian eng. Johannes Lepper [2]

IPT-7 Júnior - 1945 side-by-side 2-seat trainer, x 1
- IPT-7 : Low-winged monoplane; fixed 'taildragger' u/c
- IPT-7 : 1 x 65 hp Franklin 4AC-176-BA2;* span 10.60 m
- IPT-7 : Simple constr.** design w/ low-cost local wood
-- * HO4 engine driving Brazilian IPT.9 wooden propeller
-- ** eg; Fuselage & single-piece wings of freijó wood
-- Design by eng. Frederico Abranches Brotero

IPT-8 - (Project) 1945 twin-engined light transport
- IPT-8 : 9-seats; twin-tails; single-spar low-wings
- IPT-8 : 2 x 220 hp (unspecified) HO6s; span 15.75 m
- IPT-8 : Construction begun but never completed*
-- * Abandoned in favour of war-surplus US aircraft
-- Fabric-covered wooden construction planned **
-- ** Orig. to use 'Almad', a wood-aluminum sandwich
-- https://www.secretprojects.co.uk/threads/brazilian-eay-cap-and-ipt-designations.12035/#post-600427

IPT-9 - (Project) 1946-47 twin-engined light transport
- IPT-9 : High-winged monoplane; spatted main u/c
- IPT-9 : 2 x 200 hp DH Gipsy Majors; span 14.00 m
- IPT-9 : 5-seater; companion design to IPT-8 (??)
-- 'Plastic' covered wood; constr. begun, abandoned
-- https://www.secretprojects.co.uk/threads/brazilian-eay-cap-and-ipt-designations.12035/#post-600427

IPT-10 Júnior - (Project) 1946 light cabin monoplane
- IPT-10: 2 + 1 seat evolution of the IPT-7 Júnior
- IPT-10: 1 x 100 hp Lycoming O-235; span 10.59 m
- IPT-10: Construction begun; was it completed (?)
-- IPT-10 design influenced the later FG-8 Guanabara

IPT-11 Bichão - (Project) 2-seat advanced trainer
- IPT-11: Tandem seat; low-wing; retr. main u/c
- IPT-11: 1 x (??) hp (??) engine; span (??) m
- IPT-11: Some influence from IPT-0 Bichinho
-- Bichão translated at the time as 'bug'

IPT-12 Caboré - 1947 high-perf. sailplane, x ?
- IPT-12 : Designed by Eng. Sílvio de Oliveira
- IPT-12 : Wingspan 11.00 m; wing area 10.00 m2
-- Handling was poor; redesigned by Joseph Kovacs
- IPT-12A: Wingspan 12.00 m; wing area 12.00 m2
- IPT-12A: Prototype c/n 1; Brazil register PT-PBT
-- Caboré named after the Ilha do Caboré (?)

IPT-13 Banana - (Project) 1952 2-seat trainer; x 1
- IPT-13: Tandem seat low-wing monoplane; PP-ZPB
- IPT-13: 1 x 85 hp* Continental C-85-12; span 9.00 m
- IPT-13: Fixed 'taildragger' u/c; cockpit canopies
-- Ash wood framing with plywood covering overall
-- * Many sources say 75 hp Continental C-75 HO4

IPT-14 Marreco - 1956 aeroclub sailplane trainer; x 1
- IPT-14: Tandem 2-seat; wing cut out for instructor
- IPT-14: Wingspan 14.00 m; wing area 16.80 m2
- IPT-14: Shoulder-mounted semi-cantilever* wings
-- * Strut-braced from lower fuselage to ~10% span
-- * Spoiler airbrakes ~mid-chord inboard of ailerons
-- Marreco means duck (mallard/drake/widgeon)

IPT-15 Besouro - (Project) 1954-57 jet test aircraft
-- Init'l concept have have been adapted sailplane [3]
- IPT-15: Tandem 2-seat; shoulder-winged; skid u/c
- IPT-15: 2 x podded underwing engines; span (??) m
- IPT-15: 1954 concept used Fairchild PT-19 fuselage
-- Projeto Alfa: 2 x CTA pulse-jets (abandoned)
-- IPT-15: 2 x 350 lbf Turbomeca Palas turbojets
-- Besouro in Portuguese translates as 'beetle'
-- No interest shown from Ministério da Aeronáutica
-- https://www.secretprojects.co.uk/threads/strange-design-by-ipt.1451/

IPT-16 Surubim - 1959 high-performance monoplane
- IPT-16: Single-engined, single-seat, low-wing aircraft
- IPT-16: 1 x 160 hp Hirth HM 506A 6-cyl.; span (??) m
- IPT-16: Wooden constr.; IPT fixed wing slots; retr. u/c
-- 1949 José Kovacs design, Secao de Aeronautica, IPT
-- 1951 design finalized with Sílvio de Oliveira at São José
-- 1953 const. begun with Sílvio de Oliveira at São José
-- 1959, 17 Sept., 1st flight by IPT pilot Alberto Bertelli
-- Dragged-out devel. may explain 1st name Satanàs!
-- Surubim is a city in the state of Pernambuco, Brazil

IPT-17 Laminar - 1960 sailplane; IPT-5 deriv.; x 1
- IPT-17: Single seat; ash structure; laminar profile wing
- IPT-17: Final IPT design before becoming CTA (??)
- IPT-17: Wingspan 19.00 m; wing area 16.40 m2

SP-18 Onça - 1965 single-seat agricultural a/c; x 1
- SP-18: Mixed construction; high-mounted wing; T-tail
- SP-18: 1 x 165 hp Franklin 6ACG-298; span 12.00 m
- SP-18: PP-ZAK; designed under eng. Romeu Corsini
-- Later, w/ Lycoming IOF-360 as IPAI-27 Jipe Voador
-- Onça = Panthera onca aka Ounce or Jaguar
-- https://www.secretprojects.co.uk/threads/brazilian-eay-cap-and-ipt-designations.12035/#post-600487

SP-19 Galinha - High-performance sailplane; x 1
- SP-19: Single-seat, high-wing, semi-monocoque
- SP-19: Wingspan 17.10 m; later clipped to ~16 m*
- SP-19: Sílvio de Oliveira & Leonardo Jafet design
-- * Orig., long SP-19 span induced flutter problems
-- * PT-ZTA's original long-span wings induced flutter
- SP-19: aka 'IPT-19 Galinha' (prob. unofficially)
- Galinha translates as 'hen' or 'chicken' (!)
-- https://www.secretprojects.co.uk/threads/brazilian-eay-cap-and-ipt-designations.12035/#post-600488

SP-20 Pinto - (??) Sailplane; no details
-- Pinto translates as 'chick'/'hatchling'

SP-21 Ganso - Single-seat, high-wing sailplane
- SP-21: Semi-monocoque; strut-braced wings
- SP-21: Wingspan (??) m; wing area (??) m2
- SP-21: Said to 'stall-free'; no other details
-- Ganso translates as 'goose'/'gander'
-- https://www.secretprojects.co.uk/threads/brazilian-eay-cap-and-ipt-designations.12035/#post-600489

____________________________________

[1] The ribs and formers of the IPT-0 were of freijo (Cordia goeldiana) hardwood. The covering was of special plywood experimentally manufactured by IPT from Paraná pine (Araucaria angustifolia).

[2] It seems common in Brasil to 'localize' names. So, Estonian-born Johannes Lepper becomes ''João' in Brazil, Hungarian-born Joseph Kovacs becomes 'José', etc. BTW, the latter would later become instumental in the development of the Nieva Universal and Embraer Tucano.

[3] The IPT website shows a model (attached, below) of a single-seat sailplane with shoulder gulled wings and a cruciform tailplane with underwing motores de reação (type unknown). Identified as the 'IPT-4 Planalto' - which it clearly is not - this may be an early take on Projeto Alfa, which becomes the IPT-15 Besouro project.

BTW, as mentioned, the IPT-8 light transport project was originally planned to employ 'Almad' - presumably a contraction of Alumínio Madeira - in its construction. This 'Almad' was an aluminum-wood sandwich material which sounds very similar to the early 20th Century Plymax. [1]

Does anyone have any information on this 'Almad'? I guessing that this product was developed by IPT but it would be nice to know for sure. The 'plastic' covered plywood material meant for the IPT-9 is also of interest.
_______________________

[1] Aircraft-oriented folks may associated Plymax with the Morane-Saulnier 406 of the mid-1930s. Actually, Plymax began as an interior decorating material invented by the British firm, Venesta, Ltd. It consists of an Oukoumé plywood core sandwiched by metal sheeting. But those skins could be of aluminium or copper. Such aluminum-faced plywoods were of interest to aircraft makers because they are both strong and will take rivets.

Edit: Since writing this, I've dropped down the Plymax rabbit-hole. Plenty of inaccuracies in the footnote above - hence the strike-throughs. I'm thinking that SPF may needs an 'Aircraft Materials' section ... perhaps as a pinned sub-set in the Aircraft Design topic area?

Thanks for the additional materials folks! Great stuff

Amazing work as usual sister Apophenia,

and that's all I have about IPT-8.

hesham said:

Amazing work as usual sister Apophenia,

Click to expand...

Hesham, Apophenia is a man.
Please, stop calling him sister

hesham said:

Amazing work as usual sister Apophenia,

Click to expand...

Come ha detto l'uomo:

Apophenia said:

BTW: Il mio pronome personale è lui

Click to expand...

This translates to My personal pronoun is he

S.P.18 "Onca"

S.P.19 Galinha

S.P.21 Ganso

CiTrus90 said:

hesham said:

Amazing work as usual sister Apophenia,

Click to expand...

Hesham, Apophenia is a man.
Please, stop calling him sister

Click to expand...

Sorry,I just look wrong to the profile,forgive me my dear Apophenia.

hesham said:

Sorry,I just look wrong to the profile,forgive me my dear Apophenia.

Click to expand...

No apology needed hesham. My profile avatar does indeed feature a woman's face.

I based my avatar image on the cover of one of my favorite William Gibson novel - Pattern Recognition - which where I first encountered the word 'apophenia' as well

FWIW, the woman pictured on that cover represents 'Cayce Pollard', the protagonist of Pattern Recognition.