I have run the ST 2300 in planes weighing 11 3/4 pounds, and it pulls the planes vertically exceptionally well. My first response would be that the ST 2300 would fly your corsair with scale like authority, however the takeoff will need to be done skillfully, particularly if it is the Topflight Corsair. My Topflight Corsair flew just on the margin, with never a problem on the takeoffs with the OS 1.20 FS. I wish I had the ST 2300 for it then, as I am rebuilding one and plan on the ST 2300 up front. My Corsair weighed probably 13 pounds then. Good luck.