HI ... I was given a wood model of a Grumman prototype made at Grumman. It is a twin engine (told no turbo) painted yellow wing with cockpit set back to about 50% of cord. Blue to tail. It has a horiz. stab. with 2 verticals at ends with rudders. Retract gear from under engines. I was told only two were built in early 1940's - one crashed and the other was choped - never produced. I can't find anything on it at all. Any body?? thanks Kevin