ORIGINAL: rashmore
Peter,
My ultimate flys VERY well with an os 120 fs on it.
Please note, if you do put a gasser in your biplane, it will be heavier, not just because of the engine weight, but you also need an extra battery pack and switch for the ignition.
Yup I mentioned this to him too.
With the new lighter version that he has a 1.20 FS will do even better.
A 23cc gasser adds additional weight, so you are offsetting the benefits of the gasser with the added weight, so overall you come out about the same.
ORIGINAL: rashmore
Also, be sure to seal the covering edges of your plane really well. They use very little overlap and the covering doesn't stick as well as it should around the edges.
I recommend that you apply several coats of Top Flite Clear coat, after lightly buffing the covering with a plastic dish pad, and cleaning it off VERY well.
After the clear coat has dried you may buff it again with the dish pad for a fantastic appearance.
Your covering will not lift up again.
ORIGINAL: rashmore
I had to replace almost all of the hardware that came with the plane to something a little more stout. Believe it or not, with the os120 fs in it my ulitmate came out to 7 lbs 4 oz.
Wow that's fantastic!
My older 1.20 came in at about 11lbs!!!
ORIGINAL: rashmore
I had to do a double take and had it checked on 2 diffrent scales. It is VERY light plane and flys like a dream. I havnt been able to get it to hover, not because of lack of power, but probably to lack of skill and I probably need to move the cg back a little to make it more stable, however after leaving the runway, i can point the nose straight up and it will just keep going. I have no doubt the os will pull it out of a hover without any trouble.
I may just have to buy the new one to get the better performance!
From what you are saying it sure seems worth the "upgrade".
Excellent. A FS 1.20 Surpass III pumped on a 7lb biplane would be amazing.