Favorite plane never built (or perhaps as a prototype).

[MIflyer]

And then there was the remarkable Twin Ercoupe.

 

[Admiral Beez]

I'd like to have seen how the Gregor FDB-1 would have compared against the Polikarpov I-153, Gloster Gladiator, Grumman F3F and Fiat CR.42.

 

[MIflyer]

I'd like to have seen how the Gregor FDB-1 would have compared against the Polikarpov I-153, Gloster Gladiator, Grumman F3F and Fiat CR.42.

It won the ugly contest, hands down, but I'm sure it had a nice personality.

 

[Admiral Beez]

It won the ugly contest, hands down, but I'm sure it had a nice personality.

It's less ugly when wheels up and in flight. A monoplane version might have looked okay.

But I'd rather see CCF build folding Martlets for the RN. It looks like Grumman's patented undercarriage was used.

 

[Ricard]

CAC CA15
Supermarine Spiteful/ Seafang. Yes about 20 or so were built but it never quite made it into service as such.
Hawker P1030

 

[N4521U]

And then there was the remarkable Twin Ercoupe.

View attachment 764074

Remarkable, fer shure

 

[A4K]

For WW.II, the Horten Ho.IX V3 (also known as Ho 229/ Go 229)

 

[Admiral Beez]

The Arrow of course

But not as a dedicated interceptor with nothing to intercept. Instead, make the Arrow fit the roles of the CF-100, CF-101, CF-104 and CF-116. It's maddening to me that as a wholly-owned subsidiary of Britain's Hawker-Siddeley, Avro Canada did not collaborate with head office to create a global multirole fighter. Instead we have Hawker designing the P.1121 at the same time Avro is about the fly the Arrow in 1958. Had the two countries and three company divisions (Hawker-Siddeley also owned Orenda Engines, makers of the Iroquois) collaborated and combined economies of scale, we might have got past the Canadian and British finance and defence departments, and ended up with a multirole competitor to the F4 Phantom - coincidentally, also first flown in 1958.

The Arrow's delta wing may have to go, as its detriment to low altitude ops and agility would not meet the multirole requirements. Perhaps the wings of the Hawker P.1129 could be considered. Though the Mirage 3 and 2000 deltas are good, so idk. The Arrow is also huge, almost as big as a SR-71 Blackbird, so might need to be scaled down.

And Hawker P.1129 twin engined strike aircraft was to do the same low altitude nuclear strike role in the RAF as the RCAF's CF-104. Our combined multirole fighter above might have done this job.

 

[Jimbob]

XB-70. Bad Ass. Got to see it fly as a kid when my parents took me to the airshow at Edwards AFB. Been to the crash site and have some parts from it.

 

[Marcel]

Fokker D.23.

 

[buffnut453]

Ooohh...so many to consider. Someone already posted the TSR.2 which is definitely on my list. Here are a few more:

First up, the Martin Baker MB.3 - a great-looking aeroplane:

Now for one that came just after WW2, the AW.52 - another thing of beauty, IMHO:

And now for another missed opportunity, the P.1154 which looks like a cross between the F-4 Phantom and a Harrier...which makes sense since it was intended to be a supersonic VTOL fighter:

That's probably enough for now...'cos I could go on...and on....and on....!!!!!

 

[tomo pauk]

'cos I could go on...and on....and on....!!!!!

Same here
I mean - Spitfire III, He 100 (but with the normal cooling system), Mustang X, Fw 187, ANT-58 (aircraft "103"), D.551, Sabre Fury, J7W, C6N... Obviously, just for ww2, and then we have another almost 80 years to ponder

 

[SaparotRob]

And now for another missed opportunity, the P.1154 which looks like a cross between the F-4 Phantom and a Harrier...which makes sense since it was intended to be a supersonic VTOL fighter:

View attachment 764265


That's probably enough for now...'cos I could go on...and on....and on....!!!!!

The P.1154 is a new one for me. That's one cool looking VTOL.

 

[Thumpalumpacus]

From WWII: Do-335 and the Republic F-12 Rainbow.

Modern era: YF-23.

 

[A4K]

The YF-23 was one awesome looking plane.

 

[MIflyer]

There was the XF-109/D-188A that even out-cooled the F-104 and F-105. Both supersonic and VTOL, I am pretty sure that the Blackhawks would have used them to replace their F-90's if any had ever flown.

 

[N4521U]

I want to see a home built two seater that looks like an A10!

 

[GrauGeist]

Here's a few of my favs:
Heinkel He280
Consolidated/Vultee XP-81
Beechcraft XA-38
Henschel Hs132
Douglas XB-19
Lockheed XP-58

 

[Thumpalumpacus]

The YF-23 was one awesome looking plane.

Forum could use a "f**k yeah!" like button.

 

[Admiral Beez]

Supermarine Type 576. The supersonic Scimitar. But skip the rocket boosters.