I cannot say for sure as I usually build Giant scale WWII Warbirds and dont stress them like you would with jets. I fly mine scale and it seems planty strong enough. this stuff I use is laquer based and thin as water so it soaks into the wood good creating a bond from the balsa to the glass. Whereas epoxy would stick to the top of the wood being thicker rather than soak in. Polyester resin is in between it soaks into the wood fairly well giving the wood to cloth bond. (now not saying epoxy wont but most of the epoxy just sits on the wood because it is thicker doesnt soak thoroughly into the wood) All I can say is you might want to build another plane first and test it for your needs. I would hate to say yes without knowing that much abt turbines and have you have a mishap with an expensive engine. Below is a list of some of the planes I have used this with:

Ziroli (hehe i have built almost all of Nicks Planes But these are the ones I have used the poly U with)

P-40
Dauntless
P-38
Dr-I (used it to strengthen the cloth covering)
Corsair

Also used it on Dave Splatt spit
top flight Dc-3

and going to use it on my 118" Ziroli B-25, Avonds F-14 (twin Dynamax units) and Ziroli Panther when I do them this winter

so I trust the stuff but then I only fly scale and dont rip up the skies adding a lot of stress to my wings.

Hope this answers your question
Joe