Hi Glide, You may wanna try the Market-Place here in RCU. I ended up with a NIB Saito 100 for less than I could have bought the OS .91 II Surpass, & only a couple $$ more than the Magnum.
While I was pretty well convinced that the .91s would have been sufficient, I just couldn't pass that deal up. The 100 will have a little more power while sharing the same mounting dimentions of the OS .91, & suppose to weigh about 2oz less. So it might be worth a try sometimes ya get lucky, it happened to me.

If you really think about it, the 4-stroke isn't all that much more money than a 2-stroke unless you go with a really inexpensive brand 2-stroke. With any of the above 4-stroke choices we've been looking at, you can use the stock muffler. Any 2-stroke you choose & you can add on the price of a pitts type muffler to go with it. I know @ Tower Hobbies the OS .91 2-stroke & pitts muffler came out to be just about the same price as the OS .91 II Surpass. So I say go for it & get the one you really want!

By the way, the Dragon Lady is going together very nicely, I can't post any pics right now because someone we tried to help decided they needed the digital cam more than we did. No good deed goes un-punished apparrently. Just waiting for the Saito 100 to arrive so I can start working on mounting it.

Minn, The manual for this plane states that if going with a 120, I might want to change out the motor-mount to an adjustable aluminum mount. Should I probably go that route with the 100 as well? Thanks in advance.


Mark