Fokker XXI as a Joint Anglo-Dutch project?

[Marcel]

More of a poke at the British for still using fixed pitch props at this time

Fokker was developing new models but how far removed from the D XXI is certainly subject to question.
The XXI was certainly not a bad plane in 1936. However by 1938-39 it was certainly no longer 1st rate. It might have worked against the Ki 27 or the A5M but as soon as any opponent shows up with a retracting landing gear fighter and a decent two row radial the XXI is in trouble, such was the rate of aviation progress back then.

Yup, agreed. It's amazing, isn't it? From the first build to 1940 was only 4 years. This plane went from quite modern to obsolete in that short time span.
For the ones interested, I did a thread on de D.XXI many years ago here on the forum. Fokker D.XXI in Dutch service

 

[Marcel]

Both countries were expressing the need for a simple fighter for overseas service (of course, that was not proceeded with due to the realities of late 1930s). So, for sake of discussion, lets have Dutch and British co-operate in this task, and come out with an aircraft that is pretty much like historical Fokker XXI in 1936. For the British, the Bristol company is involved.
What might be the shortcomings and benefits of this cooperation? Refinement and growth potential of the basic design? Alternative powerplants in the next 5-6 years? Other countries chipping in?

Just reading up on the Fokker plans.

They also considered the Bristol Hercules in design 150. Calculated speed would have been 505 km/h. Disadvantage was that the a/c would be quite a bit heavier, so climb speed, one of the D.XXI's strength, would suffer quite a bit.