For comparison, I have a Saito FA-100T in a SIG WACO SRE that I am very satisfied with. The WACO weighs 10 pounds less fuel. The 100 twin pulls this quite well and although it is not an aerobatic airplane it will do all of the various un-scale aerobatics you could want. I have a Saito FA-80 in my Skybolt. This engine is very close in power to the FA-100T that is in the WACO. This combination weighs 7lbs. 12oz. less fuel. Again, I am very pleased with the performance of my Skybolt. Any limitations that it has are because of the pilot and not the the airplane. I don't claim to be anything but an average R/C pilot, so you should consider that as well. I'm not hard to please. Bottom line to what I'm saying is, if your FA-90T produces close to the same power as the 100T (I believe it does) you should see similar performance to what I do with my Skybolt. Not spectacular but not too bad either. Hope all this helps.