Search found 6 matches

by Inergy9118
May 1st, 2013, 5:20 pm
Forum: Helicopters B
Topic: Duration
Replies: 57
Views: 24361

Re: Duration

Inergy9118 wrote:Looked like all the rest, but the disk on top was free floating. It fell off after it hit the ceiling and the clock kept going...
Forgot to mention the free floating disk was removable/just sat on top.
by Inergy9118
April 29th, 2013, 6:26 pm
Forum: Helicopters B
Topic: Duration
Replies: 57
Views: 24361

Re: Duration

Looked like all the rest, but the disk on top was free floating. It fell off after it hit the ceiling and the clock kept going...
by Inergy9118
April 17th, 2013, 8:08 pm
Forum: Helicopters B
Topic: Helicopters B
Replies: 139
Views: 41318

Re: Helicopters B

I normally use a value of 100 turns per inch, but this batch of rubber is breaking at 94 TPI, so our team used 90. That assumes a lubricated band that has been prestretched after tieing the knot. Better times are achieved by having the chopper as close to the 3 g min as possible, having the blades ...
by Inergy9118
April 15th, 2013, 7:18 am
Forum: Helicopters B
Topic: Helicopters B
Replies: 139
Views: 41318

Re: Helicopters B

HELP. What is the key of getting over a minute? We have tried a lot of things. What is the key? How many turn per inch should you have?
by Inergy9118
April 9th, 2013, 7:54 am
Forum: Helicopters B
Topic: Helicopters B
Replies: 139
Views: 41318

Re: Helicopters B

1) Slight difference in turns per inch, if lube properly, not enough to worry about. Torque meters. There are a couple of suppliers out there, but I usually just build my own, see viewtopic.php?f=68&t=1822 for discussion of plans available on line. 2) How good are your times? If you are up in t...
by Inergy9118
April 8th, 2013, 7:54 pm
Forum: Helicopters B
Topic: Helicopters B
Replies: 139
Views: 41318

Re: Helicopters B

1). Generally speaking is there any advantage of taking a smaller size motor and doubling it over instead of simply going with a larger motor? ie). would a doubled over 1/16" motor be the same as a 1/8" motor? Will it produce the same amount of torque. PS. where is a good source to get a t...

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