I Want my 4.09 Spit FM's back.........

[Azimech]

Could it be that the pitch up tendency is a product of aft CG due to the rear tanks?



EDIT: No. I just tested it. 100% fuel vs 10% with an F Vc 1942. Same tendency.

[Kwiatek]

Originally Posted by Azimech

Could it be that the pitch up tendency is a product of aft CG due to the rear tanks?

Only some late Spits ( Marki VIII or Mark XVI) have rear fuselage fuel tanks. Such Spits with rear tank surly could have longitutad stability problems with rear fuel tank full similar to P-51s. But witht empty rear tank it should be any problem with COG.

Earlier types of Spits had only forward fuel tanks before pilot cocpit.

[Azimech]

Apparently the IX is unaffected as well, so if that type has rear tanks, the effect on CG is not modeled.