Engine for Topflite Spitfire - Page 3 - RCCanada - Canada Radio Controlled Hobby Forum
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Old 11-08-2002, 04:27 PM   #21
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The DZ is an awfully sweet engine, I will never run any of the older 140 models after running this thing, it is enough to make a couple of our 2-stroke fans switch back

The fuel economy is not terrible, I get 12-13 minutes per 20 oz, I can increase that if I am really liberal with the throttle. Its putting out as much power as any of the 140 2-strokes (sometimes even more) and that is pretty impressive for a 4-stroker.
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Old 11-10-2002, 10:05 AM   #22
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Engine for Spitfire

Finally made my mind up! I went with a Saito 91, what a beauty.
I was also able to get my retracts and air kit, along with some other goodies
(santa arrived early). Thanks to everyone for the feedback, from what l have
read either the Saito or OS would have been great choices. I was at the
hobby show in Toronto on Friday, seemed to be smaller with less booths
devoted to RC, too bad.
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Old 01-01-2003, 10:12 PM   #23
Jan Blom
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I have a OS 91 SURPASS in my TF P-47. Built it really lite in the rear and auw is less than 8.5. Its painted on .75oz cloth.Got a 13x8 APC on it. Flies really well, power wise also. Climbs well but will not vertical forever. Good speed. Anybody considering the YS might note that with the fuel tank set-up inverted engines are no problem. Also I heard the YS 110 will be out soon!
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Old 01-02-2003, 09:51 AM   #24
Marty C
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which donk?

Y.S.91 Is my vote, I love mine and it runs 100% reliable inverted. Plus you can swing a huge 16x6 prop with ease, this helps greatly in providing a windmill effect on landing allowing steeper fighter approaches, not to mention scale flight speeds and more authority through vertical the manouvers at lower throttle settings... only other options for me are O.S. 91 FS. I personally have found the Y.S. a better built and stronger engine IMHO. I have worn out 2 Mustang airframes (AUW 10 lb) with the Y.S.91 powering them not 1 deadstick or engine concern in over 4 years. Go with Y.S. and you will be 100% satisfied/ happy I promise
JET FX- Warbirds & Jets
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