Vultee XBT-16 41-9777

 

The 1942 XBT-16 was BT-13A 41-9777 rebuilt with a plastic-impregnated plywood (Duramold) fuselage, tail section, and wing sections by Universal Products Corp, Bristol VA (aka Vidal Research Corp). A wartime experiment to replace vital aluminum with a less expensive material that didn't prove too successful. It reportedly ended up heavier than the original metal-clad ship. Only one was built.