TBS Turbinenbau Schubert Schwabhangen Gmbh manufactures a small turbine for motorgliders, known as TBS 400N.J40P with a thrust of 400 Newton.

-It is the engine chosen by the Czech HPH for its 304S.

“TBS 400N without cowling”

“And with the HPH front cowling”

-The mounting of the engine on the glider is very interesting.

-As we can see in the drawing below, the engine is retractable and we can see the different positions in its path.

-Certainly with this, the center of gravity varies from the covered back to the front, once in place.

“Interesting mounting on the HPH 304S"