Author Topic: model autogyro plane wanted (Read 5088 times)

Sonny Williams · « **on:** January 17, 2008, 04:41:30 PM »

I am looking for an autogyro model plan. I built and flew one around 1948 and would love to rebuild that particular one. However, I don't remember the name of it. If anyone has a plan I would be willing to pay for it. Best I can remember the one I flew was aout 30 plus inches long and the rotor was about 32 to 33 inches long tip to tip. Not interested in a real small one. Thanks for checking your archives.

Wynn Robins · « **Reply #1 on:** January 17, 2008, 05:40:38 PM »

I have 3 different autogyro plans - one is called Hoppity the others are called Autogiro Mk1 and Mk2 .

I dont know if they are what you are looking for - but I can e-mail you the plans

Ralph Wenzel (d) · « **Reply #2 on:** January 17, 2008, 05:45:44 PM »

Black Hawk Models offers a kit of the Kelleett AutoGyro, if that's the way you'd like to go:

http://www.blackhawkmodels.com/gyro.html

Ralph

frank carlisle · « **Reply #3 on:** January 17, 2008, 08:31:04 PM »

I built the Black Hawk Auto Gyro......

minnesotamodeler · « **Reply #4 on:** January 18, 2008, 06:16:47 PM »

And I...

frank carlisle · « **Reply #5 on:** January 18, 2008, 06:33:44 PM »

Ray,
Might you be interested in asking Wynn for some plans and builing a bigger one?

john e. holliday · « **Reply #6 on:** January 18, 2008, 09:01:32 PM »

As simple as that looks, it shouldn't be too hard to scale up. I have plans somewhere in the dungeon for one called "Otto the Gyro". Learned hard way it will not taxi. Had throttle control on mine. Later, DOC Holliday

wwwarbird · « **Reply #7 on:** January 18, 2008, 09:13:17 PM »

A couple years ago in Flying Models' coverage of the Brodak contest, there was a color in-flight photo of an autogyro in Japanese markings. It looked to be profile semi-scale, appeared larger than 1/2A, and I've always wanted to know more about it. I believe it was by a guy with the last name Crusan, maybe Bob?

If anyone has info on this one, please post it, it would be great to see.

minnesotamodeler · « **Reply #8 on:** January 19, 2008, 06:28:14 AM »

Quote from: frank carlisle on January 18, 2008, 06:33:44 PM

Ray,
Might you be interested in asking Wynn for some plans and builing a bigger one?

How much bigger? My space (building, storing and flying) is limited.

--Ray

frank carlisle · « **Reply #9 on:** January 19, 2008, 06:43:55 AM »

Ray,
I've been toying with the idea of building a larger edition of the Gyros we built last winter. .35 size. I have a foam Green Box Nobler wing from Crist Rigotti just yearning for me to do something with it.

minnesotamodeler · « **Reply #10 on:** January 19, 2008, 01:21:40 PM »

Now that's cheatin', Frank...on 2 or 3 fronts:

1) Gives you a headstart, no fair, no fair...

2) So you'll basically have a Nobler with a rotor on top...that's kinda like the paddlewheel boats here on the Mississippi that have a modern screw underneath, the water current drives the freewheeling paddle. No fair, no fair...

A true Autogyro should depend on the rotor for at least some of its lift. That's one of the rules of "the world according to me". Hook the power train up to the paddlewheel or take it off, I mutter every time I see one of those riverboats.

Kinda like Santa with those fake "boots" covering the top of his wingtips (never mind the fake beard, at least get real boots), or a city bus with a nostalgic-looking body being called a "trolley". Calling it one don't make it one, a trolley should run on tracks, ideally with a power line hookup above.

I read of a 4-engine model airplane that used 2 engines and 2 freewheeling propellers. That too stimulated my "cheating" bone. What you see oughtta be what you get.

Sorry Frank, got carried away, it's cold outside. End of rant. What were you saying?

--Ray

frank carlisle · « **Reply #11 on:** January 19, 2008, 01:52:26 PM »

Ray,
Er, well, uh, hmmmmm. I think that............um, well........uh.........
How's that?

minnesotamodeler · « **Reply #12 on:** January 19, 2008, 02:16:31 PM »

Eloquent.

frank carlisle · « **Reply #13 on:** January 19, 2008, 05:16:34 PM »

O.K. skip the Nobler wing. Here in Michigan at the Musciano event there is a category titled "unlimited" in which any size model is eligible so long as it is an original Musciano design. Based on the response I got with the hollow log version of the Gyro I think that it would do well scaled up for the unlimited category.

gary tultz · « **Reply #14 on:** January 19, 2008, 05:32:53 PM »

Hi. Like Mr. Holliday said, OTTO the GYRO. Its from an old American Modeler issue 1960s time frame (I could be wrong on both).Its an excellent flier and ground handler. Gary Hull, a member of the North Coast Controlliners, Cleveland Ohio, flies one with a throttled McCoy .29. If contacted, I'm sure he'd be glad to help. Rainman

minnesotamodeler · « **Reply #15 on:** January 19, 2008, 06:29:29 PM »

I have an 8 1/2x11 copy of the plans for Otto the Giro by Dick Mathis. A lot has to be inferred, but I like the looks of it. 31 1/4" 2-blade rotor dia., 3" wide blades, 24" long profile fuse. No wing at all, just a 10" long LO guide mount. Now that's an autogyro. It either flies on the rotor or it doesn't fly, period. For .29-.35 engines, the plan says.

I wonder if it'll loop?

--Ray

Dennis Adamisin · « **Reply #16 on:** January 19, 2008, 07:22:51 PM »

BACK to the original Post:

I think Mr Williams is looking for an Edco(?) Autogyro - a kit from... a very long time back. My father one and it is about the size matching the description in the first post.

Unfortunately I am not aware of any plans for it. I would suggest trying the AMA plan site and see if they have something in their archive.

Marvin Denny · « **Reply #17 on:** January 19, 2008, 07:58:16 PM »

Quote from: minnesotamodeler on January 19, 2008, 06:29:29 PM

I wonder if it'll loop?

--Ray
Yes --- Well ---more or less

Bigiron

frank carlisle · « **Reply #18 on:** January 20, 2008, 07:33:24 AM »

Quote from: minnesotamodeler on January 19, 2008, 06:29:29 PM

I have an 8 1/2x11 copy of the plans for Otto the Giro by Dick Mathis. A lot has to be inferred, but I like the looks of it. 31 1/4" 2-blade rotor dia., 3" wide blades, 24" long profile fuse. No wing at all, just a 10" long LO guide mount. Now that's an autogyro. It either flies on the rotor or it doesn't fly, period. For .29-.35 engines, the plan says.

I wonder if it'll loop?

--Ray

Ray---scan that plan and email it to me will you?

minnesotamodeler · « **Reply #19 on:** January 20, 2008, 09:07:07 PM »

Will do, Frank. It has some printing on the back that shows through, so I don't know how well it'll scan...but we'll see.

--Ray

frank carlisle · « **Reply #20 on:** January 21, 2008, 06:13:04 AM »

I'll watch for it Ray..........thank you.

Elwyn Aud · « **Reply #21 on:** January 21, 2008, 06:02:55 PM »

I think I heard somewhere that Otto the Gyro the flew better with the blade rotation reversed from what the plans show and that the angle of incidence of the rotors wasn't the best. I can't recall whether it was too much or too little though. I'll try and find a shot of Jim Lee's version to see which way the blades are set up to turn.

gary tultz · « **Reply #22 on:** January 21, 2008, 09:05:22 PM »

Frank, call Wayne Buran. He can hook you up with Gary Hull in the Cleve. club. He is a NATS Carrier winner and he has made his OTTO work wonders. Wait till you see it-- fly?---er--gyrate--er--ottograte-- er-- rotate--motate--well,you know. Gary T. P.S. you too Sonny

frank carlisle · « **Reply #23 on:** January 22, 2008, 05:19:57 AM »

He had it at the Cleveland contest last year didn't he? I looked over where they were giving folks free cl flights and saw Grace Paris flying a Gyro. Same one?

gary tultz · « **Reply #24 on:** January 22, 2008, 07:41:19 AM »

Probably so Frank. I don't think theres another one in the area.

G.

minnesotamodeler · « **Reply #25 on:** January 22, 2008, 08:05:23 AM »

Plans, such as they are, on the way, Frank.

--Ray

frank carlisle · « **Reply #26 on:** January 22, 2008, 11:19:49 AM »

Thanks Ray.

James Lee · « **Reply #27 on:** January 22, 2008, 03:10:49 PM »

Been flying my 'Otto the Gyro' since 1975 ( and it looks like it!!) Does seem to work a bit better with the rotor rotation the other way from the plans...
I did a slightly larger one with a big case Fox 45 with throttle... Not faster, but it will go from an almost hover into a wingover.... and with the motor running flat out, and a big deep breath, it will do a big loop.... remember to keep a positive angle of attack all the way around!!!!!!
A part of the Pitcairn full scale gyro demonstrations was consecutive loops....
the ground handling seems to be a matter of leadout rake. If it's yawed out for lots of line tension it will get a 'bit' cranky if held on the ground. But if it does get settled down it can be rolled for laps with a lot of down... Use lots of prop clearance!! FWIW
Elwyn has some good pics

Lots of fun!!
thanks
Jim

Robert-Jan · « **Reply #28 on:** January 23, 2008, 02:12:26 PM »

http://www.fesselflug.eu/html/downloads_videos.html

Fesselflug Tragschrauber 4,1 MB

Greetings Robert-Jan

dave siegler · « **Reply #29 on:** January 24, 2008, 08:06:01 AM »

Model builder has (had) plans for a carrier based giro.

I build an cox powered one from a kit as a kid Kopter Kit from some place in New Jersey. Any one have that one? It flew OK, but needed hard surfaces and we only had grass..... It used a hollow bolt and twist plate from a lighting fixture for the rotor hardware. The mast was adjustable for changing incidence.

Dave

Bill Goebel · « **Reply #30 on:** February 25, 2008, 09:07:30 PM »

I have buillt three Otto's. One in high school and two after college many moons ago. We never had any problem with the rotor. I just came across my original full size plans and will be getting them scanned full size next week as .pdf and .TIFs. If anyone would like those you can pm me. I would be more than happy to share. I'd really like to find a copy of the original article. For some reason I thought it was in Model Airplane News but I have yet to rediscover it. That's what my brother and I read the most of back in those days.

We flew the Otto's on a Fox 35 and a McCoy Red Head stunt and they did fine. One note is that you need to be down low when you run out of fuel because the rotor is very low inertia. Otto doesn't do gliding well...

The attached picture is of McCoy powered Otto #3 that I built back in '83. It's hanging in my son's room as we speak.

v/r,

Bill