Hello,
thank you my friends for your encouragement, but my skill and my patience are not at the level of that it needs to do
Regarding the option "wheels up", it's almost the same problem, the landing gear is partially visible even it's retracted... I hope to let you know about this problem very soon.
For the moment, the work of the nose/undersurface is finished (I think...). I'll add the cowl flaps later.
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