double size corostang - RCCanada - Canada Radio Controlled Hobby Forum
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Old 07-24-2004, 01:16 PM   #1
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double size corostang

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I am building a double size corostang that hase a wing span of 80 inches and the fuse is 60 inches. what size of gas motor will get this bird in the air. I have what I think is about a 22 cc. wacker engine but it doesnt seem to realy have a lot of power . And also is there a spad way of making realy inexpensive retactable main gear. like maybe ruberband power or something.
Am I going to need heavy duty servos to run everything or will the regular ones work. All the control surfaces are double 4 mm thick.
Has anyone made a big corostang.
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Old 07-24-2004, 02:53 PM   #2
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All depends on the weight when is finished.
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Old 07-24-2004, 10:53 PM   #3
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I find that any "weed wacker" engine under 25cc does not have enough "oomph" to fly, with reliability and efficientcy, any plane that size....
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Old 07-25-2004, 05:20 PM   #4
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I am thinking it will be about 5 t0 8 lbs. There will be about 1 1/2 sheets of 4 mill coro and a bit of wood plus radio tank and motor and landing gear.
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Old 12-08-2004, 09:46 PM   #5
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I also made a double sized spadstang. It started out as just a display but the guys here think we should try to fly it. It has an 84" wing span and weighs 10 lbs without a motor or electronics. We are looking at a 31 cc Ryobi weedwacker motor which has quite an uummph. The setup will likely weigh about 16 to 17 lbs because the motor weighs 4.6 lbs. I can send some pictures as far as I have got if you wish.
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Old 12-10-2004, 07:50 PM   #6
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Pilot: Test Flight Ok, but Autoland is very rough.
AME: Autoland not installed on this aircraft.
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