The Yakovlev Yak-141 ( NATO reporting name "Freestyle"), also known as the Yak-41, was a Soviet supersonic vertical takeoff/landing (VTOL) fighter aircraft designed by Yakovlev. It was used for testing.

ak-41
The two flying prototypes and ground test article.
Yak-41M
Proposed production aircraft with large LERXs (leading-edge root extensions) and other improvements, particularly in the avionic suite.
Yak-43 (Izdeliye 201)
A proposed development of the Yak-41M 'Freehand' equipped with Kuznetsov NK-321 engines.
Yak-141
Designation originally applied to a single Yak-41 for disinformation and propaganda purposes when registering records with the FAI (Fédération Aéronautique Internationale)[10]:120–121[11] and later for promotional purposes by Yakovlev.

How to Take Off :
Activated Ag-1
VTOL- UP
When tilting, Start to bring VTOL to normal
Activated AG-2 for support Engines

And it's kinda hard to fly, but you'll get used to it, or maybe fix it, that will be great

good luck