RE: J Roberts Cobra
Now I understand why such a large engine for the plane that size. I had a Sterling F-51 profile that was about the same dims and it flew great with a Veco 19. This was drilled for an OS 30. ( I have an OS 29 with a carb I will be using) The lack of center sheeting worried me until I looked at the instructions and it appears there is a couple of substantial hardwood pieces joining the wing halves. Should I even be flying a 50 year old plane?(60?)