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Search: Posts Made By: akouzmit
Showing results 1 to 22 of 22
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Forum: Gas Engines
11-07-2015, 07:38 PM
Replies: 226
Views: 91,462
Posted By akouzmit

Your flattering may be due to just mechanical...

Your flattering may be due to just mechanical oscillation and specific aileron size/shape/weight as well as linkage looseness and servo overcompensation.
the vibration from 4-stroke engine is also...
Forum: Gas Engines
05-22-2014, 04:21 PM
Replies: 226
Views: 91,462
Posted By akouzmit

May be this information will be also helpful as...

May be this information will be also helpful as some reference:
I also have a plane with SAITO GF-30.
A week ago I have measured static trust with high accuracy.
The prop I used was APC 17x8.
The...
Forum: Gas Engines
05-22-2014, 12:30 PM
Replies: 226
Views: 91,462
Posted By akouzmit

Just for the reference if it can help: I have...

Just for the reference if it can help:
I have 15.5 pounds RV-8 with SAITO-36 with fuel and smoke oil loaded it is close to 16.4 pounds
It is scale flying machine with easy big diameter loops, but...
Forum: Gas Engines
11-07-2013, 02:46 PM
Replies: 226
Views: 91,462
Posted By akouzmit

On my GF40 I am using APC 18x8W. On the ground at...

On my GF40 I am using APC 18x8W. On the ground at max throttle I am getting 8000-8100.
Forum: Gas Engines
11-07-2013, 07:27 AM
Replies: 226
Views: 91,462
Posted By akouzmit

http://www.flyinggiants.com/forums/showthread.php?...

http://www.flyinggiants.com/forums/showthread.php?t=78139&page=5#post2055300

Please, read this thread regarding GF40 rocker support wear issue.
Once you run engine in the plane for over 3 hour...
Forum: Gas Engines
10-28-2013, 09:01 AM
Replies: 226
Views: 91,462
Posted By akouzmit

--------- and more with my comments: ...

---------
and more with my comments:
https://vimeo.com/m/77297037
Forum: Gas Engines
10-28-2013, 08:38 AM
Replies: 226
Views: 91,462
Posted By akouzmit

Please, look here: https://vimeo.com/m/77313341 ...

Please, look here: https://vimeo.com/m/77313341
it is happening in 2-3 hours of operation.
Forum: Gas Engines
08-21-2013, 04:32 AM
Replies: 226
Views: 91,462
Posted By akouzmit

---------- On all my Saito engines: 14/21/30/36...

----------
On all my Saito engines: 14/21/30/36 and this OS GF40 I am using 20:1 Evolution Oil.
In fact I do not see such wear on Saito engines, wich I run for much longer.
Forum: Gas Engines
08-20-2013, 07:32 PM
Replies: 226
Views: 91,462
Posted By akouzmit

==================================================...

==================================================
-------------------------------------

I think many people (as well as OS custom support people) do not understand that harden steel material,...
Forum: Gas Engines
08-20-2013, 04:24 PM
Replies: 226
Views: 91,462
Posted By akouzmit

http://www.rcuniverse.com/forum/attachment.php?att...

http://www.rcuniverse.com/forum/attachment.php?attachmentid=1910902
You can see the extend of the wearing on the rocker axle.
Forum: Gas Engines
08-20-2013, 01:06 PM
Replies: 226
Views: 91,462
Posted By akouzmit

-------- OS replied they didn't see it yet from...

--------
OS replied they didn't see it yet from the other owners.
Believe me I handle this engine with love :-) and I know how to handle these 4-stoke gas engines.
I have good expertise on SAITO...
Forum: Gas Engines
08-20-2013, 11:09 AM
Replies: 226
Views: 91,462
Posted By akouzmit

---- As I mentioned in one of my first reports...

----
As I mentioned in one of my first reports the area under rocker cover is VERY well lubricated. I have removed oil before taking video.
Sound you are joking regarding inverted installation :-)...
Forum: Gas Engines
08-20-2013, 05:50 AM
Replies: 226
Views: 91,462
Posted By akouzmit

Yes, please open and chech rockers for excess of...

Yes, please open and chech rockers for excess of freedom on the axle.
Att the same time you may adjust space between locker head and valve head.
Your info is telling me that I may have badly...
Forum: Gas Engines
08-19-2013, 06:41 PM
Replies: 226
Views: 91,462
Posted By akouzmit

The good experience with GF40 didn't last long ....

The good experience with GF40 didn't last long . . . .
This happened just after 1.5 hours in operation: https://vimeo.com/72599357
The rocker "bushing" wear out completely!!!
OS is offering free...
Forum: Gas Engines
07-30-2013, 07:31 AM
Replies: 226
Views: 91,462
Posted By akouzmit

RE: O.S. GF40 4st gas

Regarding usage of 19x8 !
Answer: please, notice that I am using WIDE blade prop: APC 18x8W.
This one is loading engine as 19x8 with normal width blades.
If to go for 20x7/8 then RPM is going...
Forum: Gas Engines
07-29-2013, 06:43 PM
Replies: 226
Views: 91,462
Posted By akouzmit

RE: O.S. GF40 4st gas

-
Yes, the static trust has been measured with electronic fish scale of up to 50 LB max.
It's provide very accurate measurement. They are available at Canadian Tire store here in Canada as well...
Forum: Gas Engines
07-29-2013, 02:02 PM
Replies: 226
Views: 91,462
Posted By akouzmit

RE: O.S. GF40 4st gas

Hi,
Last weekend run my OS GF40 on the 90" wingspan plane.
4 flights over 17 min each.
I put carb settings to manufactue settings (a bit too rich).
Run it on 20:1 mixture what is left from my...
Forum: Gas Engines
07-19-2013, 12:54 PM
Replies: 226
Views: 91,462
Posted By akouzmit

RE: O.S. GF40 4st gas

If a Twin then most likely it will be 80cc, wich will be built based on Gf40.
The same approach is already used by SAITO.
I wish to sneak into OS lab to see what is the next on the table :-)
Forum: Gas Engines
07-19-2013, 09:14 AM
Replies: 226
Views: 91,462
Posted By akouzmit

RE: O.S. GF40 4st gas

-
I will be also willing to see 30cc-35cc version.
Forum: Gas Engines
07-07-2013, 06:21 PM
Replies: 226
Views: 91,462
Posted By akouzmit

RE: O.S. GF40 4st gas

Sorry, not to offence you, but it sound you do not have much experience tuning carbs from the scratch. DLE engines come with carb settings where you really don't need to adjust anything. DLE engines...
Forum: Gas Engines
05-28-2013, 09:33 AM
Replies: 226
Views: 91,462
Posted By akouzmit

RE: O.S. GF40 4st gas

For 88" TigerM 30cc 4-stroke will be more than enough otherwise it will be a rocket with 40cc and doesn't fly scale :-).
SAITO FG-30 will more suitable although I believe in 6 months OS will come...
Forum: Gas Engines
05-26-2013, 09:06 PM
Replies: 226
Views: 91,462
Posted By akouzmit

RE: O.S. GF40 4st gas

Hi everybody who loves OS 4-stroke engines.

I got my GF40 3-4 weeks ago from TowerHobbies and run it on stand (braking in) a week ago for about 1 hour.
Its quite impressed me compare to my...
Showing results 1 to 22 of 22


 
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