pometablava said:Fairchild C-82 Packet/C-119 Flying Boxcar (Aerofax) by Alwyn T Lloyd pg 43 and 44
By the early-to-mid 1960s, the USAF was interested in pursuing a turboprop conversion for the C-119. Such an aircraft was needed in limited war areas such as SE Asia. Aeronautical Systems Division at Wright Paterson AFB carried out a feasibility study to determine if Allison T56-A-7 engines could be retrofitted on C-119C/G/J aircraft. Delivery of a flying prototype was anticipated in 120 days. 3 companies teamed together for the feasibility study: Skyways Inc, On Mark Engineering Co and SECDO.
At the end, the proposal never went beyond the design phase.
No drawing available
AeroFranz said:Very interesting stuff!
I wonder if anyone back then had the slightest idea of the importance of the competition, keeping in mind the volume of Herc sales in the coming decades.
Jos Heyman said:I have some problem with the suggestion that the Fairchild M-253C was part of the competition that led to the C-130.
The request for proposals for the C-130 was issued on 2 February 1951, whereas, based on the sequence in the Fairchild model list the M-253C might have been from 1956/57 (M-232 was in 1956 and M-255 in 1957), a date also suggested by Hesham.
By that time various versions of the C-130 were already ordered and were flying (the first C-130A flew on 7 April 1955).
Also looking at the images of the M-253C - clearly a four engined version of the C-123, I doubt that it would have had the same capacity as the C-130 - but I might be mistaken. Finally, from the picture of the M-253C it looks that it was aimed at the US Army and not the USAF.
There was a Fairchild YC-136, a development of the C-123B but not too much info on that seems to be available to suggest that the M-253C might be linked to that designation. Moreover, the designation was requested in June 1954 - perhaps a little bit too early for the M-253C design.
And just in case somebody is wondering about the Fairchild C-138 designation - it seems that was a possible 1958/59 designation for a military version of the Fairchild (Fokker) Friendship (M-258F).
Nevertheless looking at the M-253C, it is an interesting proposal. Thanks for posting that.
Jos Heyman said:Hesham, we have just put up a sound argument that the M-253 is from a different era than the basic C-130. If, however, you have a specific reference where your suggestion is stated, please let us know.
It may be that the M-253 was designed in competition with a sub-version of the C-130, in which case I would expect such a reference source to mention that sub-version rather than the generic C-130. May be the C-130E, but I would think that, from a commercial perspective, it would be a rather ill thought idea for Fairchild to propose a competitor to the C-130E.
Grey Havoc said:I think hesham was trying to say that the M-253C was developed from an earlier M-253 that went up against the C-130. Paul seems to have put to rest that possibility though.
I remember Fairchaild Aircraft where I worked from 1957 - 1963. Fairchild was the Air Force transport builder of choice. The Air Force came out with a requirement for a four engine transport that used the Allison turboprop package as used on the Electra. The engineers had a design ready. No, said ccorporate management, you really need the C119 retrofitted with that package to be known as the Turboboxcar. Nope, the AF really wanted the C130. End of story, end of Fairchild as producer of AF transports. The C123 never amounted to much and the C130 still goes on 45 years later. Thanks for listening guys.
PaulMM (Overscan) said:I remember Fairchaild Aircraft where I worked from 1957 - 1963. Fairchild was the Air Force transport builder of choice. The Air Force came out with a requirement for a four engine transport that used the Allison turboprop package as used on the Electra. The engineers had a design ready. No, said ccorporate management, you really need the C119 retrofitted with that package to be known as the Turboboxcar. Nope, the AF really wanted the C130. End of story, end of Fairchild as producer of AF transports. The C123 never amounted to much and the C130 still goes on 45 years later. Thanks for listening guys.
http://www.rcgroups.com/forums/showthread.php?t=50522&page=3
Interesting recollection, he seems to suggest "Turboboxcar" was first associated with a turboprop C-119.
In response to a U.S. Army requirement for a tactical airlifter to supply the battlefront with troops and supplies and evacuate casualties on the return journey, de Havilland Canada designed the DHC-4. With assistance from Canada's Department of Defence Production, DHC built a prototype demonstrator that flew for the first time on 30 July 1958.
PaulMM (Overscan) said:I think this may be the key to understanding this 1957 STOL C-123 derivative. Caribou is smaller; the C-123 derivative is overkill for the requirement but quick to build as a mod of existing aircraft.
Fairchild Engine & Airplane Corp. is proceeding with production of a prototype of a new four-engine aircraft to be known as the Turboboxcar.It is being financed in its present stage by Fairchild, and will be equipped with Lycoming T-55 turboprop engines of about 1600 hp each.
The plane follows the design characteristics of the C-123 assault transport powered with two piston engines.
Fairchild states that the new T-55 Lycoming engine has considerable growth possibilities and will be certified for commercial use. The Turboboxcar is designed for use on small airfields or aircraft carriers. It will carry 32,181 lb of cargo for ranges up to 1500 miles
PaulMM (Overscan) said:Note the drawings posted by RAP of M-253C show T64 engines and the side views aren't identical....
hesham said:By the way RAP,
the Fairchild M-253 was intended to compete Lockheed C-130 in 1957
competition,powered by four Lycoming T55 turboprop engines and its
wings would employed boundary layout control.
Stargazer2006 said:PaulMM (Overscan) said:Note the drawings posted by RAP of M-253C show T64 engines and the side views aren't identical....
Okay... So:
- M-253 = Turboboxcar = T55 engines
- M-253C = (no name?) = T64 engines
PaulMM (Overscan) said:Also from 1957, also using 4 x T55 turboprops, the Douglas Model 1940 "DC-3 replacement"
famvburg said:I'm curious and confused about the Turbo Boxcar. IIRC, there was a C-119 proposed with Allison T-56s, but why would a turbo-prop version of a C-123 be called Turbo Boxcar instead of Turbo Provider?
Skyblazer said:the last C-119 (the C-119J) was the M-203