HAVE A NIB SPACEWALKER KIT FOR WINTER PROJECT AND LOOSE G62 WITH CH IGNITION I HAD [PLANNED TO USE . IS THIS TOO MUCH ENGINE FOR THE SPACEWALKER??

No such thing as too much engine
The Spacewalker flies well with a G 38, so a 62 will be GREAT...

I agree, the G-62 is a great choice since you already have it.

Look at my gallery (last page) for some photos of a 1/2 scale Spacewalker powered by a Brison 6.4 twin. It was built and is flown by Jim Dietrick. He scaled it up from a Sig Spacewalker.

Ken

THANKS FELLAS-I DIDN'T THINK I WAS TOO FAR OUT IN LEFT!

Horse Hockey! The G62 is way too much power for this model and you will end up carving up the cowl for the carb and muffler.
The real plane is a gentle personal home built , not an Extra for pitys sake! If you want to do the dreaded unlimited climb or hover maneuvers you picked the wrong design and you are going to be frustrated with that huge,thick,constant chord ,ironing board of a wing.
I have a 38cc Quadra 400b in mine,and it will jump off the ground in 50 feet and do most inside and outside maneuvers from level flight.The design of this particular engine allows a Bisson side mount muffler and the carb to be completley enclosed in the cowl,and use of the scale plastic engine for total realism.
Depends what you want I guess.........

Looks like RC and I struck a nerve. Sorry about that.

My reasoning is that Jim already has the G-62 so why go out and spend a few hundred dollars for another engine? The G-62 doesn't weigh much more than a G-38 and isn't physically much larger. I have both. To fly the Spacewalker realistically doesn't require that the G-62 be run at full throttle. For realism, a bigger engine turning a larger prop slower sounds a lot better than a smaller engine turning a smaller prop faster. As far as cutting the required holes in the cowl, the individual involved needs to decide if it will be acceptable. If a true scale airplane is desired then maybe a totally different engine is needed but there go the big bucks again.

Ken

No nerve struck just my attempt at humor.
As you can tell Im not a fan of over power and throttle back,and I beleive in flying on the wing not the prop.
If economics is important then certainly the Sig design will fly with the G62,but I added my opinion so that Fidalgo would understand at least one builder of this model does not think the G62 is a "great" choice for power,and yes I have owned and run a G62 and currently run a ZDZ60cc engine so Im well aware of the power and thrust these larger units will put out.......
My model balanced right on the button with the 400 B which is a no flywheel engine so I think the G62 would tend to cause a nose heavy situation.Also the LG wire is a little light for the design(the designers words,not mine),and solder joints are fragile at best,so the extra weight will eventually cause problems here too,I think.
Incidentally I welded the main joint of the LG that takes most of the stress with a wire feed unit .Using a light touch we didnt get much heat buildup and the wire temper was unaffected and I have had no gear problems at all after >100 flights on our grass strip......and the normal % of dorked landings!

Hi Jim,
The G-62 will work just fine. I built this kit when it first came out...as a review for a magazine that eventually folded. I originally set up the plane and tested it with 4 different engines, the Supertiger 3000, OS Perseus 240 flat four cyl four cycle, Zenoah G-38 and Zenoah G-62. I also set it up for floats, extending a set of Sig 1/4 scale floats.
The Space Walker flew reasonably well with all four of the engines. It took a long run to get it off the water with the smaller engines and a cylinder out condition with the OS Pegasus made ROG takeoffs a bit harry! The plane now has several hundred flights, most with the G-62 which does a great job when the floats are installed and throttle management will allow you to fly as scale like as you'd like and still have something extra when you want it. I use a Bennett mount. muffler, reduced length carb block, and smoke system. The cowl cuts outs for the exhaust tubes, spark plug, and carb are actually pretty minimum and the scale appearance is pretty well preserved.

This plane is a lot of fun! I hope you enjoy yours as much as I have mine!

why not go for the mid range? g45. 2 oz more than the 38 but with an extra pony inside . this'll keep the model a reasonable weight

A G-62 would be a bit much I'd think.. mine flew very nicely with a G-38... But until I sold it, I was going to stuff my G-62 on it for aerotowing.....

I'm glad all you guys put your opinions in here. I've got a 1/3 scale Spacewalker also and I'm gonna put my G-38 on it. See there, my problem is solved.

I had a 1/3 Scale Spacewalker powered by a G-38 and flew it for over 14 years until a radio failure had it crash, last fall.

The G-38 is the right engine for it, for the size, weight and power.
You use 3/4 power for take off and fly with 1/2 power, only. Fits well inside the cowling, no overheating or such.

You don't need anything over this.

I have flown the full size Spacewalker (the one that belongs to Max Hester) and can tell that the G-38 (or a Quadra 40 for the matter) is all you need.

Take a look on my webpage and see the pictures.