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Old Jul 09, 2009, 05:09 PM
Fly'em like you Stole'em
MikeMcChiken's Avatar
The Gehto,Ca.
Joined Jun 2008
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Not everyone has an ear for tuning . The difference between 9k and 9800 rpms is not always obvious by ear . The thing with a Saito is after you peak it you back off the peak a couple hundred RPM's to insure it's not lean . Those of us used to 4-bangers can get by without one but for a newby it's a good tool to use . My tach has been broke for 6 months . So I haven't used one lately either . But I do want to get a new one . I got my first gasser and I really don't have an ear for them yet .
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Old Jul 09, 2009, 06:49 PM
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United States, MS, Columbus
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i am using a 13x8 prop. 30% nitro heli fuel. two or three clicks more than two turns out. just inside flush on low speed idle arm. i have ran 30 oz of fuel on bench and about ten to twelve in the plane. my lhs dealer recomended the 30% heli fuel. he said it was the same as airplane fuel but has more oil for lubing.
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Old Jul 09, 2009, 08:29 PM
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Old Jul 09, 2009, 08:59 PM
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30% is way to much. I run all my Saitos and for that matter all of my 4 cycle engines on 10% nitro. Only exception is the little 20 and 26 and the YS's. They like higher nitro and I use 20% for them. Actually YS20/20.

Any more than 15% is a waste of money. I can see why you lhs says use 30%. His profit margin is greatly increased.
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Old Jul 10, 2009, 05:35 AM
Fly'em like you Stole'em
MikeMcChiken's Avatar
The Gehto,Ca.
Joined Jun 2008
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Greg , If you got the cash , 30% heli is fine for the 82 . I run 20/20 powermaster (all synthetic)and thats good enough for me . You wana make sure you run it more rich than lean with that heli fuel though cause there isn't any castor in it . Synthetic oil will burn off at a lower temp than a synthetic/castor mix . I used to run 25% wildcat heli in my 82 . Then I got cheap and went with 15% wildcat and started having problems with both 2 and 4 stroke motors . Since I started with the 20/20 I think I will stick with that .
No War intended for you wildcat or castor users . PM syn. is just my preference now .
Hows your transition on the throttle . If you idle for a couple minutes and hammer the throttle does it bog down a little before tach'in out ?
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Old Jul 10, 2009, 07:07 AM
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I also use 30% heli in my 82. It's perfectly fine. It has about 22% oil if I remember correctly. After a full flight I'm able to keep my hand on the valve covers so heat is not a problem. The only thing I didn't do was break it in on the 30. I used a full gallon of the YS20/20 on the stand, then once in the plane, I was very gentle on it until I burned another full gallon of the 30%. Then I leaned it out a tick and it has run like a top. I think right now I've got about 4 gallons on it including break in.

30% nitro is where it's at...
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Old Jul 10, 2009, 07:09 AM
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Since 1991 I've run nothing but WildCat 10 and 15% Premium Extra/18% 80/20 blend but recently picked up 4 gallons of the WildCat 15% 2/4 with 18% all synthetic. So far, I like it. If you re-adjust the needles slightly any Saito will run just about the same on 5% nitro. My plug choice is always a Fox Miracle plug. Last summer I used 6 gallons of PowerMaster 15% with the same 18% 80/20 blend as the WC and also recommend it as a great fuel.
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Old Jul 10, 2009, 07:14 AM
ARFs Are Me
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Traverse City, Michigan
Joined Dec 2005
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Quote:
Originally Posted by init4fun
Hi Tom Crump and Winder35 , I very much appreciate your help about the 270 engine . I just want you guys to know im not looking to skimp on the airframe for this project , im just trying to keep it to a managable size as to get it to the airfield on a somewhat regular basis . i guess what im worried about is making something so large as to be a complete pain to transport and then it wont get used much . Thats why the thought of a third scale is a bit intimidating . Thank God money isnt a problem so i can choose pretty much any airframe that looks suitable , I just am worried about ending up with my own Spruce Goose - you know pretty , expensive , and never flown Im off to look at airframes now . Happy Flying

I understand that size can be a problem.

When considering your model, take a detailed look at field assembly time. My Stinson takes a half hour, and doesn't fly much.

I just remembered thiis company. http://www.airflair.com/

I had a 300 in their Prime Stick and PC 300. Neither are overly large, and both flew extremely well. The builds on both are not complicated. You may like them.
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Old Jul 10, 2009, 09:47 AM
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Old Jul 12, 2009, 01:54 AM
Fly'em like you Stole'em
MikeMcChiken's Avatar
The Gehto,Ca.
Joined Jun 2008
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Anybody have any cool vids of there Saito powered toys ??
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Old Jul 12, 2009, 08:22 AM
ARFs Are Me
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Traverse City, Michigan
Joined Dec 2005
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Quote:
Originally Posted by init4fun
Tom Crump you just found me my airframe !!!! That Prime Stick looks like the perfect , simple ,large enough airframe for flying my 270 . I figure ive got plenty of time to do a scale airplane after i fly something like this as my first large bird . So far im flying 40 to 60 glow powered planes and lots of electrics up to a power 46 size but nothing yet IMAA legal . And best of all theres NO COWL on this one so ill get to see the twin in all its glory . Thank You and Happy Flying Edit added : I talked to Don at Air Flair international and ordered a kit so now i guess ive got to open a build thread and learn how to post photos
Glad that I could help ! Once you build this one, you may get addicted to the Air Flair line up. I know that I did. I still have their Prime Sport.

Please post a link here, when you start your build thread.
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Old Jul 12, 2009, 08:29 AM
Twistaholic AMA 134406
Dad_Roman's Avatar
USA, TX, Teague
Joined Jul 2007
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Here ya go Mike.

Senior tele, Saito 91, Graupner 3-blade 15x7-12, solid 1500 idle and operated below 4K rpm.

#1 son on the sticks. Turn the volume up so you can hear him work then throttle

Figure 8's at Twilite (0 min 33 sec)



A low and slow Knifedge..........
Telemastyer craziness (0 min 14 sec)




One wheel work.....
Telemaster Craziness (0 min 16 sec)
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Old Jul 12, 2009, 11:45 AM
Fly'em like you Stole'em
MikeMcChiken's Avatar
The Gehto,Ca.
Joined Jun 2008
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Kinda hard to see , it must be getting dark . Can hear the motor workin though . I tried to post one on youtube but it came out all garbled and hessitates . Don't understand why .
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Old Jul 12, 2009, 02:44 PM
Twistaholic AMA 134406
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Yea it was gettin VERY dark. Thats why he was in so close.

Didnt expect it so it was one of those "man I gotta get a vid" moments. Ya whip out the cell phone and thats what ya get. Crappy vid but I managed to capture the moment...lol

He was flyin in about a 30x60 box, I figure we coulda been in a gymnasium
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Old Jul 12, 2009, 08:54 PM
Fly'em like you Stole'em
MikeMcChiken's Avatar
The Gehto,Ca.
Joined Jun 2008
1,109 Posts
Quote:
Originally Posted by I TOBOR
..... My plug choice is always a Fox Miracle plug. Last summer I used 6 gallons of PowerMaster 15% with the same 18% 80/20 blend as the WC and also recommend it as a great fuel.
I was really thinkin of trying out one of those miracle plugs . When I was first in this hobby in the 80's all good plugs had idle bars in them but now the 4-banger plugs don't have it . Does it make a big difference in how it idles ? Maybe thats why you can get away with the lower nitro .
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