Canadian_JOY
Well Known Member
I've been burning too much midnight oil working on our project airplane and, being a little foggy and sleep-deprived, haven't been able to "science out" this question in my head, so I'm putting it to the great minds gathered here.
Let's take a hypothetical homebuilt airplane where the designer specified the engine mount to have 1 degree of nose-down angle. Sometime during the fabrication of the engine mount something got tweaked and the engine ended up with 2 degrees of nose-down angle.
What's the net effect on aircraft performance and handling resulting from this additional nose-down angle on the engine? Would 1 degree of difference have a noticeable effect? Or would it take perhaps 2 or 3 degrees of additional nose-down angle before the effect on performance and handling would be noticeable?
If anybody has real-world examples where they have flown the same airplane with different nose-down angles on the engine I'd be very curious to learn what the real vs calculated effects are.
As always, your well-considered replies are appreciated.
Let's take a hypothetical homebuilt airplane where the designer specified the engine mount to have 1 degree of nose-down angle. Sometime during the fabrication of the engine mount something got tweaked and the engine ended up with 2 degrees of nose-down angle.
What's the net effect on aircraft performance and handling resulting from this additional nose-down angle on the engine? Would 1 degree of difference have a noticeable effect? Or would it take perhaps 2 or 3 degrees of additional nose-down angle before the effect on performance and handling would be noticeable?
If anybody has real-world examples where they have flown the same airplane with different nose-down angles on the engine I'd be very curious to learn what the real vs calculated effects are.
As always, your well-considered replies are appreciated.