Search Koolhoven projects

lark said:
The 3-view in your post # 36 is the FK.33 I think.

This was not a project as far as I know...
Click to expand...


That's right my dear Lark,but a little known aircraft.
 
Perhaps , but it was at least well known in the Netherlands
since it was the first 3-engined transport aircraft in that country
and for a time , the most heavy.
It even received a nickname coming on the two last letters of it's registration
- - DD "Dikke Dirk"... (fat Dirk)
 
That's new for me,thank you my dear Lark.
 
hesham said:
Hi,


and here is the Koolhoven Ontwerp 1142A and 1142B bomber and a seaplane
bomber projects.
Click to expand...


Hi,


if someone can complete those drawings,and suppose it had single tail fin in both design.
 
Hi,

on a drawing to Koolhoven FK.46,we can find this text; Ontwerp 1087 to indicate to it ?.

https://modelbrouwers.nl/forum/viewtopic.php?f=46&t=44842
 

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Actually the FK-46 twin sports/trainer aircraft, was built and flew for the first time in 1933. Total production was 13. There is a good description in Theo Wesselink's book 'Koolhoven Vliegtuigen'.
 
hesham said:
and here is the Koolhoven Ontwerp 1142A and 1142B bomber and a seaplane
bomber projects.
Click to expand...

This project was actually called F.K.59.
 
Hi,

Unfortunately,the Koolhoven Ontwerp 1099 & 1101 were mentioned in Luchtvaartkennis
magazine of 1990,but as know in my files;

Ontwerp-1099 was a twin engined monoplane bomber Project of 1934,powered by two Rolls-
Royce Kestrel engines
Ontwerp-1101 was a single seat biplane fighter Project of 1935,powered by one 815 hp Lorraine
Petrel engine
 
In my files,

The Koolhoven company designed a sporting monoplane Project,but I don't know
the Ontwerp designation for it ?.
 
In my files,

Koolhoven designed a Torpedo Bomber Float Seaplane Project for Norway in 1937,powered
by two Armstrong-Siddeley Panther engines
 
Hi,

the Koolhoven Ontwerp-1124 was a passenger transport sesquiplane Project of
mid 1930s,powered by two engines.
 
Hi,

the Koolhoven Ontwerp-1125 was a passenger transport monoplane Project of 1935,
any drawing survivors ?.
 
By courtesy of lark, here's a drawing of the "ontwerp 1099" twin engined bomber
from "Frits Koolhoven en zijn vliegtuigproductie" by Dirk Top. The side view showing
two different shapes of the fins.
 

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Amazing and brilliant,thank you my dears Lark and Jemiba.
 
Also in my files,

the Koolhoven designed a recce flying boat monoplane Project of 1930s,powered
by three engines,no more details are known ?.
 
Very few info is available of this project..

It was high wing 3-engined flying boat proposed
for the Dutch MLD - Marine Luchtvaart Dienst or Air Service.

A drawing of this project was shown to Prince Berhard during his visit
to the Koolhoven works on 19 November 1936.

Exept for an artist impression made by Justus van Hattum
who was at the time 'inhouse' artist with Koolhoven nothing
more is known of this rather impressive flying boat.

(illustration : see the Koolhoven Flying boat thread.)
 
Hi,

also the Koolhoven Ontwerp 1154 was a fighter-bomber monoplane Project of 1937,
no more details are known ?.
 
Hi,

has anyone a drawing to the Koolhoven Ontwerp-1172 ?,which was a passenger
transport monoplane Project of 1939.
 
By the way,

the Koolhocen Ontwerp-1094 was a F.K.40-2M,which powered by two 130
hp De Havilland Gipsy Major engines.
 
hesham said:
the Koolhoven Ontwerp-1124 was a passenger transport sesquiplane Project of
mid 1930s,powered by two engines.
Click to expand...

It had a retractable landing gear and the two engines mounted at the lower wing,the fuselAGe
was very closed to Douglas DC-3.
 
In my files,

Koolhoven had a Project in 1936,called FK-702,we know the Ontwerp series was begotten
almost by 1000 number.
 
The floatplane shown with the drawings of the F.K.31 mentioned as F.K.34 is wrong. This was the F.K.31 on floats.
The F.K.34 was a Finnish fuselage with a watercooled engine.
 
Jjr said:
The floatplane shown with the drawings of the F.K.31 mentioned as F.K.34 is wrong. This was the F.K.31 on floats.
The F.K.34 was a Finnish fuselage with a watercooled engine.
Click to expand...

Thank you for the Info Jjr.
 
Hi,

there was a Project,appeared earlier and called FK.29,as monoplane (not biplane) light transport aircraft,it is mentioned in that source ?.
 

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Also from the same source,

the Koolhoven FK.30 was anther design for a two-seat trainer Project,powered by 45 hp Anzani engine.
 

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From, Le_Génie_civil___revue_[...]_bpt6k64877303.
 

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Amazing find dear Juan,

and by the way,there is one or more from FK series,are re-allocated to another designs.
 
a correction concerning the type F.K.59.
This number was only used for advertising of the Two-engined floatplane, this type was project 1142.
The real number F.K.59 was a biplane a modified versionof the F.K.52 and ordered shortly befor the war for the LVA, production was started but how far??????? everything destroyed may 1940
 
Contract was signed on 17.4.1940. Jigs for the series production were just ready when the Koolhoven factory
was bombed on the early morning of 10 May 1940.

source : Dik Top with Jan den Das in 'Frtis Koolhoven en zijn viegtuig productie' and article
by the same authors in Vliegwereld about the FK.59...
 

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