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Search: Posts Made By: Sobrinof
Showing results 1 to 25 of 33
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Forum: AutoGyros
03-24-2008, 11:45 AM
Replies: 4
Views: 3,360
Posted By Sobrinof

RE: amazing gyro....

Hi Emilio, nice to heard about you...

Till now, that autogyro hasn't flow yet

Before trying to fly it, someone advice me to build a trainer one. I didn't found a good trainer so I designed...
Forum: AutoGyros
03-12-2008, 11:28 AM
Replies: 4
Views: 3,360
Posted By Sobrinof

amazing gyro....

Please, have a look at this gyro....

72'' diameter
Supertigre 23 cc

amazing...


http://nasgul.blogspot.com/search/label/Autogiros
Forum: Tachometer Readings
09-26-2007, 09:10 AM
Replies: 0
Views: 890
Posted By Sobrinof

OS 70 FS Ultimate

Hello

My readings

OS FS 70 Ultimate
Fuel: 5% Castrol, 15% Koltz, 10% Nitro
Madrid, Spain 630 meters (1890 feet aprox)

Propeller: APC 12x8
Forum: Glow Engines
08-03-2007, 04:51 AM
Replies: 5
Views: 1,093
Posted By Sobrinof

RE: O.S. 70 Ultimate

Hi again

A 12x7 propeller is small for this engine. OS recommends 13x6 and 13x7 propellers

I am using a 12x8 APC, home brew fuel 10% nitro and works fine, really well.

Regards

FER
Forum: Glow Engines
08-01-2007, 02:00 AM
Replies: 5
Views: 1,093
Posted By Sobrinof

RE: O.S. 70 Ultimate

I bought one of these engines two months ago. Till the moment it runs great. Full of power, little running in...

There is a previous release of these engines that had a lot of problems related...
Forum: Engine Conversions
06-11-2007, 02:05 AM
Replies: 9
Views: 1,741
Posted By Sobrinof

RE: G2300 engine converted.

Why don't you install a flywheel? I mean, a flat cylinder made of steel or similar in order to add inertia to the engine. This will help the engine no to vibrate and the idle will be very low and...
Forum: Tachometer Readings
06-01-2007, 06:56 AM
Replies: 27
Views: 4,031
Posted By Sobrinof

RE: Jett .76L

Hello Dar

Probably, this is done to assure that the mix gas-air is well done in order to burn the mixture completely in the engine. When doing this, you reduce the efficiency of the engine...
Forum: Tachometer Readings
05-31-2007, 10:24 AM
Replies: 27
Views: 4,031
Posted By Sobrinof

RE: Jett .76L

[/quote]I don't remember which law of thermodynamics states this, but power output is a function of the temperature difference between the intake and the exhaust.[/quote]

Carnot law says that...
Forum: Tachometer Readings
05-07-2007, 05:20 AM
Replies: 12
Views: 3,269
Posted By Sobrinof

RE: Saito 56

You're right. Reading again the instructions leaflet the recommended propellers are 11x8, 12x6 and 12x8

I used this propeller because is recommended for the OS 52 FS... I will change it...

...
Forum: Tachometer Readings
05-03-2007, 02:09 AM
Replies: 12
Views: 3,269
Posted By Sobrinof

Saito 56

Hi

Here is my first figure:

Saito 56
Fuel: Home made, 10% nitro, 5%, castrol oil,15% koltz
Place: Madrid, Spain, 650m (1900 feet)

Propeller: 11x7 MA
rpm: 11.200 rpm
Forum: Glow Engines
04-26-2007, 10:22 AM
Replies: 3
Views: 614
Posted By Sobrinof

OS 70 FS Ultimate - Please report your experience..

Hello

After several weeks thinking about this engine and its competitors (YS 63 FZ, OS 70 Surpass II, Saito 72, etc) I would like owners of this engine share with us their experiences with it. ...
Forum: Glow Engines
01-07-2007, 02:37 PM
Replies: 17
Views: 3,432
Posted By Sobrinof

RE: OS 15 CV-A vs OS 15 LA

Hello Rocketman612

Nowadays, I am using a Graupner 7x4 propeller and with this propeller, the engine reaches 16,200 rpm.
The engine is really good. Very very reliable. I think it likes small...
Forum: Tachometer Readings
07-05-2006, 05:08 AM
Replies: 92
Views: 24,776
Posted By Sobrinof

RE: O.S 1.20AX Owners. Post your tach readings

New reading

Mertz wood 16x10

10% Nitro, 20% syntetic-castor oil

1800 ft

RPM 7,550
Forum: AutoGyros
02-15-2006, 11:59 AM
Replies: 1
Views: 918
Posted By Sobrinof

C30 new release

Hello to all

Being suscribed to RC Universe since february 2004, I didn't realize there was an specific forum for autogyros (perhaps because it is under Heli forums and I don't have any of these...
Forum: O.S. Engines Support
02-01-2006, 10:28 AM
Replies: 2
Views: 1,553
Posted By Sobrinof

propeller for os 120 AX

Hello:

Reading the manual of this engine, O.S. suggests propellers from 15x10-12 to 16x8-10
Reading your web, I check you recommend 14x10 and 15x6 APC propellers

Rpm range of this engine...
Forum: Tachometer Readings
01-17-2006, 03:19 AM
Replies: 8
Views: 2,452
Posted By Sobrinof

RE: OS 120AX readings? Anyone?

It is the Classic series

I dislike this propeller. At high rpm you can see how the blades bend. I intend to try an APC or Zinger prop instead of this one.

Best regards
Forum: Tachometer Readings
01-16-2006, 04:39 AM
Replies: 8
Views: 2,452
Posted By Sobrinof

RE: OS 120AX readings? Anyone?

My data:

10% nitro fuel, 15% koltz syntetic oil, 5% castrol oil

Place: Madrid (Spain) 630 meters abobe sea level. 1800 feet

Propeller: 16x8 Master airscrew

Just new (1 litre):
Forum: Glow Engines
10-26-2005, 01:08 AM
Replies: 70
Views: 16,766
Posted By Sobrinof

RE: OS 46 AX vs Super Tigre G 51

Yes, webra muffler fits with accuracy in ST 51 and works very well...
Forum: Glow Engines
08-03-2005, 04:11 AM
Replies: 1
Views: 656
Posted By Sobrinof

OS 70 FS Surpass II Inverted?

Hi:

Could someone tell us his experience when mounting this engine inverted?

I heart it causes problems at idle... Is it true?

Thanks to all
Forum: Glow Engines
07-21-2005, 07:09 AM
Replies: 2
Views: 1,152
Posted By Sobrinof

Supertigre G51: C/L vs RC Cylinder liner

Has anybody tried the C/L cylinder liner in a RC version of this engine? What diferences are between both cylinder liners?

Looking at the figures given by the manufacturer, the C/L version gives...
Forum: Glow Engines
05-16-2005, 09:46 AM
Replies: 14
Views: 1,515
Posted By Sobrinof

RE: Thunder Tiger 120 SE: Low compression feeling

My figures:

10% Nitro, 15% Koltz oil, 5% Castor oil Home brew fuel
OS No. 8
1,900 feet
Humidity: 55%
Standard Muffler


MA 16x8
Forum: Glow Engines
05-16-2005, 02:50 AM
Replies: 14
Views: 1,515
Posted By Sobrinof

Thunder Tiger 120 SE: Low compression feeling

Hi

Two months ago, I buyed a second hand TT 120 SE.

My question is about a strange feeling when moving the propeller. It looks like if there is no compression. It is possible to move the...
Forum: Tachometer Readings
05-04-2005, 09:20 AM
Replies: 4
Views: 875
Posted By Sobrinof

RE: TT120 SE

10% Nitro, 15% Koltz oil, 5% Castor oil Home brew fuel
OS No. 8
1,900 feet
Humidity: 55%
Standard Muffler


MA 16x8
8,800 RPM running - 9,200 peak
Forum: Glow Engines
04-21-2005, 01:30 AM
Replies: 12
Views: 1,141
Posted By Sobrinof

RE: Saito 65 or 56??? Giles 202

I have that airplane and I tried first with a O.S. 52 Surpass (similar to Saito 56). This engine has not enough power for that airplane.

After that, I installed an Os 50 SX and it flyes really...
Forum: Glow Engines
02-23-2005, 07:02 AM
Replies: 17
Views: 3,432
Posted By Sobrinof

RE: OS 15 CV-A vs OS 15 LA

After testing the 15 CV-A I may assure it is the best engine for this airplane. In comparison with the MVVS, the weight (due to the special configuration of the airplane) is much lower and glides...
Showing results 1 to 25 of 33
 
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