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Search: Posts Made By: NMOSSON
Showing results 1 to 25 of 45
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Forum: Gas Engines
03-28-2007, 10:06 AM
Replies: 1
Views: 1,125
Posted By NMOSSON

LIMBACH L275 engine

I tried to find out maintenance and operation manuals of the Limbach L275 engine.

Does anyone have these docs?

I am also looking for the crankshaft thread dimensions and type on the prop...
Forum: AutoGyros
02-09-2007, 09:49 AM
Replies: 13
Views: 14,820
Posted By NMOSSON

RE: Auto Gyro plans?

If you have access to a CAD soft, I can send to you the drawings of the Japanese Kirara, designed for the size you are looking for.

Norbert.
Forum: AutoGyros
01-04-2007, 03:15 PM
Replies: 0
Views: 1,142
Posted By NMOSSON

Vintage autogiro

Hi guys and have an happy rotating new year.

Have a look and enjoy the attached picture... :D Vintage scale model of a full size vintage giro... Scale 1:6, weight as shown 1275 g. Don't know if...
Forum: AutoGyros
11-29-2006, 03:42 AM
Replies: 19
Views: 2,870
Posted By NMOSSON

RE: Rigid head on rudd/elev only?

See below an other exemple of rotor head on 40 size gyro (Japanese KIRARA).
Forum: AutoGyros
11-28-2006, 09:56 AM
Replies: 19
Views: 2,870
Posted By NMOSSON

RE: Rigid head on rudd/elev only?

Do not increase stifness of the blade holder disc. Ideally, it should not have any stiffness (i.e. no transmission of blade bending moment to the head through a hinge) to avoid dissymetry of lift....
Forum: AutoGyros
11-28-2006, 09:47 AM
Replies: 22
Views: 11,451
Posted By NMOSSON

RE: Sparky Autogyro - Plans Needed

What's you EMAil, so I can send you the drawings and original building instructions from JB.
Forum: AutoGyros
11-27-2006, 07:11 AM
Replies: 22
Views: 11,451
Posted By NMOSSON

RE: Sparky Autogyro - Plans Needed

I do not plan to make any buisness by making blades or autogiro parts. If you prefer to buy blades, go to Aerobalsa and then you just need to balance and finish them. The quality of these blade is...
Forum: AutoGyros
11-23-2006, 02:54 PM
Replies: 3
Views: 1,410
Posted By NMOSSON

RE: Rotor Speed

900 rpm on the sparky (650g, SG6062, 1deg incidence), pretty stable. approx 600-700 rpm on the Pitcairn PA22 from A Co Az (1750g, clark Y, 1.5 deg incidence). And around 500 RPM on the Kirara (1850g,...
Forum: AutoGyros
11-22-2006, 10:57 AM
Replies: 3
Views: 2,364
Posted By NMOSSON

RE: Thank You Norbert Mosson

I am using a TWISTER 19 outrunner from Electronic Models, and the associated 40 Apms brushless controller, with 8 cells NiMh 3300. Prop is a 12*4 CAMPROP.
Forum: AutoGyros
11-14-2006, 03:05 AM
Replies: 8
Views: 2,980
Posted By NMOSSON

RE: Autogiro Videos

I have already tested this system (it is exactly the one used on the PA22 video). The problem is if the drive axis is not exactly in line with the rotor axis, it is not so easy to declutch. The...
Forum: AutoGyros
11-13-2006, 02:59 AM
Replies: 8
Views: 2,980
Posted By NMOSSON

RE: Autogiro Videos

On the video, the prerotator with wireless drill was not incorporated any free wheel, so it was a little bit difficult to unclutch it. Now, I have installed a one way bearing and it is much better...
Forum: AutoGyros
11-09-2006, 03:52 AM
Replies: 8
Views: 2,980
Posted By NMOSSON

Autogiro Videos

Hi gyroguys.

I have created a RCU Video group named Autogiro for those want to share gyro's videos. I have already uploaded one video concerning my Sparky autogiro and one concerning my Autogiro...
Forum: AutoGyros
11-09-2006, 02:18 AM
Replies: 22
Views: 11,451
Posted By NMOSSON

RE: Sparky Autogyro - Plans Needed

Ron,

the easiest (and of course the most expensive) way is to order blades from Aerobalsa. But you can do them easily by yourself, in plain balsa if you use a clark Y airfoil. The method I use...
Forum: AutoGyros
11-08-2006, 04:02 PM
Replies: 22
Views: 11,451
Posted By NMOSSON

RE: Sparky Autogyro - Plans Needed

I have the original SPARKY drawings in scan format, or an updated set on DWG or WORD formats. Let me know which one you want, I can foward it you before the end of the week, as well as some flying...
Forum: AutoGyros
10-06-2006, 02:58 AM
Replies: 21
Views: 7,631
Posted By NMOSSON

RE: "Dihedral" or preset coning effects on rotor

Hi Mickey.

Don't worry, I am not offensed by your "direct style writing!". It is always a pleasure to exchange ideas with you.

Redarding vibrations, there is only two way of generating them...
Forum: AutoGyros
10-05-2006, 02:39 AM
Replies: 21
Views: 7,631
Posted By NMOSSON

RE: "Dihedral" or preset coning effects on rotor

Hi Mickey.

Conical angle is critical on full size gyro for two reasons: (single rotor).

To avoid rolling to the side, the lift developped by each blade shall not apply any torque on the...
Forum: AutoGyros
10-04-2006, 02:47 AM
Replies: 1
Views: 1,122
Posted By NMOSSON

POPEYE has a gyro now...

Hi guys

POPEYE has now a gyrocopter... It was built by Olive! (it is not a joke, the builder's name is Thierry OLIVE). This gyro was seen on a public demonstration in France this summer and flew...
Forum: AutoGyros
05-19-2006, 08:39 AM
Replies: 4
Views: 1,361
Posted By NMOSSON

RE: Glow Powered Autogyros

Joel,

Can you estimate the scale and size of the gyro on attached photo?
You can fly big machines or small machines, the important is to fly the model that is the good compromise between your...
Forum: AutoGyros
11-09-2005, 11:20 AM
Replies: 9
Views: 2,122
Posted By NMOSSON

RE: European BEGI.

My Cierva C30 rotor is at an exact scale of 1:10, i.e. rotor diameter of 44.5 inches and blade chord of 1.3 inche. Airfoil is a Clark Y.
Forum: AutoGyros
11-09-2005, 06:59 AM
Replies: 9
Views: 2,122
Posted By NMOSSON

RE: European BEGI.

Both have a very good pitch stability. For both gyro, the use of rudder is not necessary (the C30 has no rudder). The main difference is the roll stability. The C30 is not as stable as the BEGI is,...
Forum: AutoGyros
11-02-2005, 08:26 AM
Replies: 9
Views: 2,122
Posted By NMOSSON

RE: European BEGI.

I fly usualy 10 minutes, and it remains plenty of power. The motor controller I use is designed for 8A continuous and 10A peak current. the propeller pitch is adjusted to drain a 8A current at max...
Forum: AutoGyros
11-02-2005, 05:15 AM
Replies: 9
Views: 2,122
Posted By NMOSSON

European BEGI.

Hi gyromen.

I spend two weeks to build a BEGI from mnovell, and this incredible little gyrocopter flies very well and is surprisingly stable even in strong winds.

Mine weights 450g (16 Oz)...
Forum: AutoGyros
10-17-2005, 08:38 AM
Replies: 6
Views: 1,478
Posted By NMOSSON

RE: Stephen Pitcairn's Miss Champion Autogiro

Has anyone build a flying model of the PCA2 autogiro?
Forum: AutoGyros
10-03-2005, 04:36 AM
Replies: 2
Views: 795
Posted By NMOSSON

RE: New book about autogiro history

I have not seen this new book available online. I will advise you if become easily available.
Forum: AutoGyros
09-27-2005, 02:40 AM
Replies: 2
Views: 808
Posted By NMOSSON

RE: BEGI Video Available

Hi Mickey.

Quite impressive how you fly your gyro in a such difficult environment. I try to finalize a BEGI and I hope it will fly soon. I just have a trouble with the swashplate, the roller...
Showing results 1 to 25 of 45
 
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