Hello

I have just been given an old Thunder Tiger .91 FS.

The reason I got it was that the pre owner was "sick" of it. He could get it to run just fine on ground and everything was ok. During flight it suddenly stopped. This happend over an over until he got tired of it and gave it to me.

Any ideas what is wrong with this TT .91 ?

Any help will be highly preciated.

Regards from Gandalv.