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Four Star 60

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Old 03-13-2006, 09:10 PM
  #1  
Folsom Blues
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Default Four Star 60

Has anyone ever used a Super Tiger .90 in a Four Star 60? If so, was the motor too much for the plane?
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Old 03-13-2006, 10:14 PM
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Default RE: Four Star 60

No, the engine is not too much for a Four Star 60.

Not needed but not too much either.

Enjoy,

Jim
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Old 03-14-2006, 04:43 PM
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mickeeand
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Default RE: Four Star 60

Thats what I am putting in mine.

mike
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Old 03-14-2006, 08:21 PM
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Default RE: Four Star 60

W8YE - I was planning on sheeting the turtle deck and adding fillets to the wing and fin area to add extra weight. I was also going to over-prop the motor to slow it down. Do you think this is a good idea. I've been told by a few people in my area that this is way to much motor for the aircraft. John
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Old 03-15-2006, 08:40 AM
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Default RE: Four Star 60

The plane tends to be a little tail heavy anyway. It doesn't need any weight in the aft area.

Use a 14-6 or 13-8 prop on the engine. Don't be lugging it down.

The engine will be just fine on the plane as is. You just don't want to be flying full throttle with it all the time.

Enjoy,

Jim
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Old 03-15-2006, 12:20 PM
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powerlines
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Default RE: Four Star 60

Well. I have flown mine with a Saito 100 and I also have servos in the rear of the plane. It is tail heavy.. YES but it flys awesome like this. I will set the next one just the same way.. You will love it..


LATER
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Old 03-17-2006, 10:51 AM
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mikeboyd
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Default RE: Four Star 60

I built a couple of these with a 1.20 four stroke and didn't have any problems. Just make sure you beef up the landing gear platform area of the fuselage. That can be a problem with landing on a rough grass field. I used hardwood tri-stock instead of bulsa and pegged the plywood plate both ways with epoxy and tooth picks. Everything else was built stock, except for some control surface modifications (larger/counter-balanced) and taking a degree of dihedral out of the wing.

This kit cries to be kit bashed, but is really sturdy.
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Old 05-10-2006, 08:20 PM
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Default RE: Four Star 60

I'm super happy with my ST 90 in my *60. It's not way over-powered in my opinion. Just use a little caution and don't fly full throttle on the decsent. I think it's a great combo. As far as props, I followed the ST engine manual with a 13X6 prop for break in. I ended up staying with it afterward. Yes, it revs up but ST folks say these engines are made to run at high RPM and it won't hurt it. The 13X6 is also one of the recommended props for normal use after break-in.
Don't let the old timers tell you this prop is too small and will over-rev the engine. I've flown the piss out of mine and the engine is stronger than ever.
Mike
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Old 05-11-2006, 12:25 PM
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Default RE: Four Star 60

Mike,
Did you have any problems with balancing your 60 with the ST .90?

John
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Old 05-11-2006, 01:42 PM
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Default RE: Four Star 60

The ST 90 weighs about the same as the ST 61.
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Old 05-11-2006, 04:56 PM
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Default RE: Four Star 60

Nope. SIG wisely recommends moving the engine as far back as possible on the mount. I did this plus put the servo tray way back. CG check showed it slightly tail heavy, but it flies great. Bottom line; Put everything as far back as you can. There is such a generous wing loading that if you don't you'll end up with a nose heavy airplane.
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