Hi is any one flying a Spacewalker by Great Planes I can't find a 1.20 engine that I can use because the throttle does not work out I have Saito 150 that I can't get to work.What are you guys flying in them and how did you get the throttle to work. [email protected]

I used an OS 91 Surpass in mine. Lay the engine on it's side. I had no problem with the throttle hookup the best I can remember.

I would think a Saito 150 would be way too much for this plane. It's not an aerobat or 3D'er. I'm not sure you would even have ground clearance for the prop with a 150. IMHO a 120 is pushin the envelope a bit with this model.

With the 91 it will fly great. I flew mine so much I got tired of it and sold it to make some room for something else. I kinda wish I had it back.

I have a Magnum 1.20 4 stroke in mine and love it! I installed the engine on its side and used a flexible cable from servo to engine with no problem.

Mine flies wonderful with a YS91FZ on it, I fact it may just be a little too much engine.

I inverted the YS and the throttle lines up just fine and no cowel cutting to boot!

I bought one of these after my wife gave me a Saito 100 for Xmas. The Saito works very good but the plane is very underpowered with this engine I would go with at least a 120 or 150 if I had the choice. I know it is a scale type plane but it should have at least a "little" vertical and it doesn't with the 100. The plane is also one of the worst flyers I have had in 20 years. I know not many would agree with me - maybe it's just not my cup of tea - but flying it is about as exciting as "watching paint dry".

Thanks guys for the infomation..gemini

I had a Saito 90 twin in mine which flew it very scale. Had to use energy management to fly aerobatics and was fun.

Put a OS 160 twin in it and WOW! It flies great.

Lots of power, vertical, and it is a perfect home for the engine.

Best prop for it is a 17X6 APC but will pull out of hover with a 18X6 as well.

I have a friend that has a YS 120 in his. He is very happy with that combination.

You can always throttle back and use a low pitch prop for more thrust.

Brian

KB1DTB

Did you have to split the cowl in order to put the twin in.

Has anyone taken the positive incidence out of the wing. I think part of my dislike for this plane is due in no small part to the 3 + degrees of wing incidence.

I did split the cowl and used lite plywood to back up the joint.

I have also thought about removing some of the 3 degrees myself.

It should fly inverted a little better at 1 1/2.

Brian

KB1DTB

I had one of these planes - what a great flying plane.

I ran a YS91 on it's side. PLENTY of power for this airplane - spent most of the time at 1/2 throttle making nice scale turns with coordinated rudder/aileron.

I don't think this plane needs a 120 to fly well.

Just my .02.

Jeff

Jeff,

I agree with you. Just remember your .91 puts out the same power as most 1.20 four strokes.

Brian

KB1DTB

I'm going to have to concur with Skypilot_one and Paradiddle...A YS91 is equivalent to anyone else's 120 and is plenty of power for this plane.

With a 15-8 prop on it, don't have a stiff neck when you take off as you won't be able to move your head enough to track it. Eight pounds of balsa and plastic become a rocket.

This is a plane to just relax with, practice your turns and loops, takeoffs and landings. It isn't a CAP and wasn't designed to be.

It is a plane that offers beauty and grace to the pilot and the spectators.

I haven't put the incidence meter on it yet, but one to one-and-a-half degrees wing incidence would be better than the three degrees presented.

But at 1/2 throttle you won't notice the difference.

I'd rate the Spacewalker a seven (7) on a scale of ten (10) for pure relaxation and enjoyment.

I flew a friends the other day with an old OS 90FS and the thing that amazed me most about it was how slow it approched and what control I had on the elevator even when it really got slow...you could barely tell it was on the ground. Do they all land like that?

I fly mine with a G-23 It's cheaper than any large 4-stroke and much more economical on fuel.

I have YS91FZ on my spacewalker with pitts style muffler. When I do a slow pass on the runway, man, the sound of the engine kills me. I love it.

I agree YS91FZ is a lot of power for this plane. Try a take off with full power and you will see it. The moment the throttle stick hits the top, the plane is off the ground.

I have mine in the air with a Magnum 1.20 4 stroke and love it! Great power for tall stall turns, cruises at 1/3 throttle. This plane is great except for the wing mounting area. Now that the snow is starting to fall I will be putting a plywood double on the fuse outside where the screws go through. Only weak part of the kit I have seen.

I love this plane too. I had a Saito 100 on it but the bearings went bad after only 70 flights. I sent the engine into horizon and they said they fixed it and sent it but everytime I call them they say, oh it will go out today. Weird, they are holding my engine hostage. I like the YS 91 idea more everyday. How is the power with the G23? Is it enough? It must ballance well. Pretty plane,.

Joe