US X aircrafts in '40s - '50s: XB-42, XB-43, XB-46, XB-48, XB-51, XP-87...

[ysi_maniac]

Enlarged version of Martin 4.0.4, equipped with the wings of XB-48 and their odd triple jet pods :mellow:

To avoid central undercarriage, not adequate for a liner, main u/c has been moved to sponsons in outer face of engine pods.

[finsrin]

Interesting concepts and graphics.  Disappointing that have not seen 1/72 Martin 404 kit.  Did tour a parked 404.

[The Big Gimper]

I like the engine pod landing gear.

[kitnut617]

Interesting concepts and graphics.  Disappointing that have not seen 1/72 Martin 404 kit.  Did tour a parked 404.

According to PAK-20 book, Combat Models does/did one and another company called Victor 66 did one too. As Combat Models is now closed down too, both would be a rare find.

[apophenia]

... and another company called Victor 66 did one too. As Combat Models is now closed down too, both would be a rare find.

That 1/72 Victor Sixty-Six vacuform did pop up on Old Model Kits but displays as now sold. Still, goes to show that there are 1/72  Martin 404s out there 

https://www.oldmodelkits.com/index.php?detail=18981&scale=1/72

[ysi_maniac]

Airliner derived from Convair XB-46. Along with orignal XB-46

[elmayerle]

Airliner derived from Convair XB-36. Along with orignal XB-46

Er, shouldn't that be "...derived from Convair XB-46."?   The proposed airliner derivatives from the B-36 were rather larger.

[ysi_maniac]

Post info about them, please.

[ysi_maniac]

Regional liner based in North American B-45 Tornado.

[GTX_Admin]

Oh, I do like that

[kitnut617]

Post info about them, please.

I would say they were based on the XC-99 wouldn't you ?

[ysi_maniac]

My fault, SORRY. I mentioned XB-36 by error, I meant XB-46. Already fixed.

IMO, XC-99 is based in B-36. XB-46 is not so big.

[kitnut617]

You could look at maybe an XC-99 based airliner with YB-60 wings and tail surfaces

[finsrin]

You could look at maybe an XC-99 based airliner with YB-60 wings and tail surfaces

Sure could 

[ysi_maniac]

XB-51 is a pretty strange project on its own. So I had to address several issues:

1. I removed the center landing gear and replaced it with a classic one.

2. I replaced the variable incidence wings with some classic ones taken from the F-86 (upscaled).

3. I solved the problem of lack of power by adding a fourth reactor, removing the central engine.

Here we can see 2 versions:

1. Closer to the original XB-51, in TWA colors, preferred by Howard Hughes.

2. More civilized, in Pan Am colors, chosen by Juan Trippe.

[GTX_Admin]

Different

[ChernayaAkula]

Very cool!  Especially the TWA version's layout.