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General control line discussion => Open Forum => Topic started by: MarcusCordeiro on August 24, 2013, 08:53:48 PM

Title: Is this going to fly???
Post by: MarcusCordeiro on August 24, 2013, 08:53:48 PM: We're having our "junkyard war" kind of thing at the club and as I was tired of doing the same thing, I decided to try a gyrocopter.
I got a gallon of fuel in a bet... Used some plans I had as a base and that's what we got ...
Flying is tomorrow.
Am I gonna get the fuel?? Enya 25 9X5 Prop

;D 8) #^

Marcus
Title: Re: Is this going to fly???
Post by: Steve Helmick on August 24, 2013, 09:25:18 PM: It'd be (really) good to have some tipweight to counter all that hardware inboard. H^^ Steve
Title: Re: Is this going to fly???
Post by: MarcusCordeiro on August 24, 2013, 09:52:25 PM: We thought about that, but the plans I have don't mention any... That worries me ~^

Well, if it flies, I get a gallon of fuel, if it doesn't, there's next year... LL~ LL~ LL~
Most designs I checked have little wings, but I thought that was cheating... Wanna make it fly only using the rotor.
So, firgers crossed everybody...

Marcus
Title: Re: Is this going to fly???
Post by: Peter Grabenstein on August 24, 2013, 10:12:58 PM: Have a look at Alberto´s at Gran Canaria Islands.
Javier is flying Alberto´s Autogiro.

saludos Peter

http://www.youtube.com/watch?v=W4D65NzDNi0&feature=youtube_gdata
Title: Re: Is this going to fly???
Post by: Tim Wescott on August 24, 2013, 10:15:30 PM: Quote from: peter grabenstein on August 24, 2013, 10:12:58 PM
Have a look at Alberto´s at Gran Canaria Islands.
Javier is flying Alberto´s Autogiro.

saludos Peter

Whee!
Title: Re: Is this going to fly???
Post by: Brett Buck on August 24, 2013, 10:22:41 PM: Quote from: MarcusCordeiro on August 24, 2013, 08:53:48 PM
We're having our "junkyard war" kind of thing at the club and as I was tired of doing the same thing, I decided to try a gyrocopter.
I got a gallon of fuel in a bet... Used some plans I had as a base and that's what we got ...
Flying is tomorrow.
Am I gonna get the fuel?? Enya 25 9X5 Prop

;D 8) #^

Marcus

I expect it will fly. You may find you need the throttle as shown in the video. I think there is a good chance that too much power will cause it to climb excessively. Which of course turns into a dive 3 seconds later.

One thing for sure - have someone videotape the attempts!

Brett
Title: Re: Is this going to fly???
Post by: Mike Keville on August 24, 2013, 10:35:05 PM: You might want to check with Jim Lee (jlee9 at cox dot net) who has a lot of experience with flying C/L autogyros.
Title: Re: Is this going to fly???
Post by: Dan McEntee on August 24, 2013, 11:03:21 PM: Yeah, Jim Lee uses his for balloon bust, of all things! I just can't remember if he uses a throttle or not. It's been a while. Howard Olsen had one with a throttle at Oshkosh this year, and it flew similarly to the one in the video. A throttle may be the optimum way to fly one, but if you are marginal on power, that may help, just have balance correct, proper down thrust, and good elevator authority. Kind of sorta like a Bislob, and be ready to back pedal. Didn't some one recently post a video of one made from a ceiling fan???? I think it actually got off the ground, but then something broke. I think the way these things are set up, is you need proper angle on the rotor fore and aft wise, and slightly to the outside of the circle, to help with line tension.
And by all means, do post a video! These things are kind of interesting.
Type at you later,
Dan McEntee
Title: Re: Is this going to fly???
Post by: MarcusCordeiro on August 25, 2013, 05:32:42 AM: Thanks people for rooting for me..
There will be a video, whatever happens...
LL~ LL~
The cg is ok. It's made of fruit box wood, the only wood we can use,so it's kind of heavy, landing will be a blast, assuming it will fly LL~ LL~

Marcus
Title: Re: Is this going to fly???
Post by: Dennis Adamisin on August 25, 2013, 05:48:31 AM: Marcus
For original thinking: CLP** BW@ CLP** BW@ CLP** (PE**)

Whether it flies or not: 010!
Title: Re: Is this going to fly???
Post by: Dave_Trible on August 25, 2013, 06:37:59 AM: Jim Lee's gyro doesn't use a throttle. It flies quite stable or it wouldn't be much for balloon bust. It's quite old now and been repaired a bunch. Weight might be helping but he sure wins a lot with it

Dave

He might fly it at the contest today. If so I'll get a photo on.
Title: Re: Is this going to fly???
Post by: Avaiojet on August 25, 2013, 07:08:11 AM: Marcus,

You're loosing it. LL~

As you know, for that to fly, the three blades have to rotate at a reasonable speed. Balance could be a facter. Is it balanced and does it spin freely?

You could, as a last resort, place a board for a wing, where the rotor is attached, no airfoil needed, and it will fly.

Might do the pattern. ;D

You should get some high appearance points.

Good luck with it.

Charles
Title: Re: Is this going to fly???
Post by: mike londke on August 25, 2013, 08:00:20 AM: Awesome Marcus! Please video it! Mike
Title: Re: Is this going to fly???
Post by: Akihiro Danjo on August 25, 2013, 08:08:53 AM: Many autogyroes were built here in Japan because a manufacture had sold 2 kits, Skygyro and Metalgyro, in the 1970s.
This photo is my friend's Skygyro that is built from the kit plan (and modified). The original was not skids but familiar 2 main gear wheels. This model is powered by OS FP25.
Skygyro flies stably and can do loop.
Your model has less rotor incidence than Skygyro and no rotor tilt.

Good flying, Aki
Title: Re: Is this going to fly???
Post by: MarcusCordeiro on August 25, 2013, 09:10:41 AM: It flel, it f&$#@ flew!!!!!

Marcus
Title: Re: Is this going to fly???
Post by: George on August 25, 2013, 09:22:49 AM: Congratulations Marcus!

George
Title: Re: Is this going to fly???
Post by: Duke.Johnson on August 25, 2013, 10:09:35 AM: That's really great! CLP** CLP** CLP** CLP** CLP** CLP** CLP** CLP**
Title: Re: Is this going to fly???
Post by: MarcusCordeiro on August 25, 2013, 12:34:25 PM: Today is a day I will never forget.
Today is yhe day my friend and partner Joaquim "Kim" and I made the first succesfull flight of a gyrocopter in the traditional "Prova do Caixote" ( Wood Box War), similar to your Junkyard War.
I couldn't be happier and that's a moment I'll treasure forever...
And after everybody there came to congratulate me, my finishing place didn't matter anymore.
All right, it wasn't a smooth flight and what Brett said almost happened, but the model and I managed to stay airborne, pity the landing, which was vertical... LL~ LL~
Thanks to all your support guys.
and thanks to my buddy Kim, withou whom I'd never have achieved this.

Well, yeppee ka yay!!!!!

Video soon #^

Marcus
Title: Re: Is this going to fly???
Post by: MarcusCordeiro on August 25, 2013, 01:58:51 PM: Videos

http://www.youtube.com/watch?v=7d7gIOCkYaM&feature=youtu.be

The first two attempts to take off, lead out guide too far back..

http://www.youtube.com/watch?v=86bevQmc0kA&feature=youtu.be

Marcus

http://youtu.be/86bevQmc0kA
Title: Re: Is this going to fly???
Post by: goozgog on August 25, 2013, 02:26:12 PM: AWESOME!

Congratulations Marcus!
Title: Re: Is this going to fly???
Post by: Rick_Huff on August 25, 2013, 03:09:43 PM: That was totally cool. Thanks for sharing it,
Rick
Title: Re: Is this going to fly???
Post by: Tim Wescott on August 25, 2013, 03:12:28 PM: I'd like to see the successful flight from the start -- it looked to me like your launcher was spinning the rotor the wrong way at launch.

Very cool aircraft. Autogyros have always fascinated me, but I've never gotten around to making one.
Title: Re: Is this going to fly???
Post by: MarcusCordeiro on August 25, 2013, 03:33:35 PM: Thanks guys!!
I'm sure more vídeos will show... when i get them, I'll post here...
We moved the lead out guide na inch ahead and it rolled smoothly half circle and took off...
This is how I tested the rotor...

http://www.youtube.com/watch?v=nmppM-App5E

Marcus
Title: Re: Is this going to fly???
Post by: Avaiojet on August 25, 2013, 04:03:06 PM: Marcus,

Nice goin!! Kudos!

Is that all your models?

Charles
Title: Re: Is this going to fly???
Post by: mike londke on August 25, 2013, 04:07:31 PM: Great job Marcus, It looked like alot of fun. 13 days to Iron Maiden! Mike
Title: Re: Is this going to fly???
Post by: john e. holliday on August 25, 2013, 04:20:25 PM: As usual Jim Lee got first in balloon burst in Topeka today. He goofed and knocked the first balloon off the stick. I got two sticks and called it quits.