My little Saito .30, which is one of the first sold is mounted in the PSP. Today I am going to wring it out then mount it on a newly finished LT 25, it hasn't been flown for about 5 years. I am setting up an 8 oz tank to match the one in the plane, then run it at full throttle for the whole 8 oz to get general idea of the available flight time. 8 oz should be plenty. The previous LT 25 had a nose gear, this one is a stock tail dragger.