AAF Materiel Command Design MCD 392 (MX-423)

[Orionblamblam]

There will probably be updated versions at some point. A few minor tweaks to the drawings to themselves, plus some better "scale references."

 

[Clioman]

I should add that at least one example of the Allison V-3420 engine proposed for use in the MCD 392--a combined pair of 'standard' V-1710 engine blocks--still exists. Photos were recently published on Hyperscale.com showing the engine on display at the most recent air races in Reno, Nevada.

 

[Nick Sumner]

If memory serves, there is also a V3420 at the RR museum in Derby

 

[XP67_Moonbat]

Wow! How'd I miss this thread!?