I've started converting my Space Walker to an Autogyro, i'll take a while, but here are some pictures of what I've done so far.

http://www.netlabs.net/hp/soarrich/spacewalker.html

Any input or questions are welcome.

Hi Rich,

Spacewalker conversion looks great so far! Thanks for posting the photos.

hey Rich, I also would like to thank you for posting the photos.......I will certainly be waiting for more.......

I added some pictures to

http://www.netlabs.net/hp/soarrich/spacewalker.html

I put new landing gear, rudder, wing closing, and added 5* downthrust to the engine. I'm now working on the rotor pylon.

PS. I also compressed the pictures more so it loads more quickly.

Hi Rich,

It's looking real good. I think the rudder size will be OK once you are flying. However, on the ground if one rotor comes up to speed a lot faster than the other the small rudder may not be able to compensate. The first flight I would point it into the wind as close as possible, give the rotors a hand spin and get on the throttle pretty good. The prop blast should give the rudder the control that you will need. I also would recommend the rate gyro set at 45 degrees to compensate for yaw and roll. I found this to be very affective and much better than the Co-Pilot for dual rotors.

Good luck,

Phil

How would you hook that into the radio? A "Y" to the tilt and rudder servos?

Hi,

Maybe I missed something. I was referring to a dual rotor which uses only rudder to control yaw and roll. The Co-Pilot would be my recommendation for a single rotor and a rate gyro for a dual rotor.

Phil

OK, sorry I guess I never said that the Spacewalker was going to be a single rotor. I want to test to see if I can tell the clockwise from the counter clockwise rotor, and see if one is better than the other, in the single rotor application. After those test I'll test the non-delta head rotor to see the differences. I want to see if the work of the delta head is worth it.

My FA-61 should build quickly once I start, I've been collecting all the stuff I'll need to build it.

Hi Rich,

In theory with a single rotor, the advancing blade should on the left because the torque from the engine causes it roll to the left. Somehow it doesn't seem to make much difference as I see more advancing blades on the right. However, with a dual rotor, I think most everybody agrees that advancing blades in the center performs better.

Phil

I've made the pylon, and the tilt mech, installed the Co-Pilot also.
4/10/02

Hi Rich,

Looks real good. I like a guy that doesn't clean up his shop to take pictures!

I liked the way you mounted the Co-Pilot on the servo motor. Very creative. However, I have one concern and maybe you have already checked it out. I design sensors for the automotive industry and the designs have to meet some very rigid EMI (electro magnetic interference) requirements. I suspect the Co-pilot has a couple of high gain amplifiers mounted with the sensors and if they are not properly de-coupled the servo motor mounted that close may cause some problems. You can do some testing yourself by rolling the fuselage side to side while somebody else moves the till back and forth. Watch for gliches or if the sever motor tends to chatter. Do it on a day outside when the earth and sky temperature are about the same. You can tell by the number of clicks that you get when you calibrate the Co-Pilot. If you get only one or two clicks, that would be good because the amplifier gain goes to maximum which would make it more sensitive to EMI. However, I suggest a call to FMA Direct and see what they have to say. It looks too good to risk an interference problem.

Good luck and keep us informed.

Phil

I hadn't thought about getting gliches from the servo, I'll test for that.

Now I have to start building rotor blades. Lots of 'em.

Mr. Soarrich

I have reviewed your pics and have to say you have done a nice job on the conversion.....

However the I pic I saw of the rotor pylon I'm afraid is something that perhaps you might want to work on.

My point is that basically you have created something that is going to fold up on you during flight.....???? If you look at where the fuselage and rotor gimbal attachment bolts are they form 2 parrallel lines, in the horizontal plane and as the rotor drag increases these 2 area's are going to start pivot to the rear......

Me thinks you might want to add some front to back cross braceing to prevent this potential nightmare from happening...

What size Hitec servo are you using....????

Keep up the good work...


Rick

I thought about that when I was building it, then forgot about it, thanks for pointing it out to me. I'll throw on a diagonal piece from the front to the back uprights. The pylon looks OK in the other axis kind of forming a triangle with the fuse as the base.

Quote:

What size Hitec servo are you using....????

HiTec HS605BB I think it's 77oz of torque.