Helicopter B/C [Trial]

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Re: Helicopter B/C [Trial]

Post by packer-backer91 »

baker wrote:So what would be a good time? 30 seconds, 45 seconds, 1 minute and a half? Not much info out there ...if anybody is even flying.
I did this event last year at my and from what I can remember over a minute was really good. I never came close to that but I know there were some really good ones that had times at or above the minute mark I don't remember the exact winning time
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Re: Helicopter B/C [Trial]

Post by jander14indoor »

The best times I heard of last year were in the minute to minute and a quarter range. But the rules required a heavier minimum weight and smaller rotors. This year the weights are lower and rotors larger so I suspect minute and a half to two is doable. Possibly higher as folks get this event figured out, and as more take up the event.

Jeff Anderson
Livonia, MI
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Re: Helicopter B/C [Trial]

Post by Aznrunner124 »

Hey guys, I kinda just got put on this event for States. And after looking around, I found this http://picasaweb.google.com/jeffrey.hoo ... 7835332994 and at my regionals I noticed that a helicopter looking like that did pretty well. So, I was wondering, where I could get a kit like that or plans for that?

Thanks.
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Re: Helicopter B/C [Trial]

Post by blue cobra »

Well, I would recommend building it yourself, but I guess that's just how I am.

If you want a kit, the link below looks similar to that helicopter, but there's no guarantee it will be to your state's specs, so some modifications may be required.

(It's in the second row)
https://www.a2zcorp.us/store/Category.a ... e+Olympiad
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Re: Helicopter B/C [Trial]

Post by get wrecked »

jander14indoor wrote:baker, 10 grams is way too heavy, you need to cut that in half at least to get it to fly. Did you have one or two 12 inch diameter props? If one, how did you control the torque? What pitch(s)?

cypressfalls_Robert, a prop is the propellor or rotor which spins to create the lift in a helicopter (thrust for a plane). In a full size copter its the blades on the top of the copter which spin around, disk parallel to the ground. The motor stick is just the main structural element, usually a simple stick for these competitions, which holds the rubber motor. There's a hook on one end, and a bearing on the other to hold one of the rotors. The wound motor goes between the hook and the shaft of the rotor.

Hope that helps, if I can find more time, I'll try a drawing, but that's definitely NOT my strength.

Jeff Anderson
Livonia, MI
10 grams isn't that heavy.
My helicopter did pretty well and it weighed 9.5 grams and had a 6in diameter prop.
Last edited by get wrecked on Sat Feb 27, 2010 7:35 pm, edited 1 time in total.
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Re: Helicopter B/C [Trial]

Post by get wrecked »

get wrecked wrote:
jander14indoor wrote:baker, 10 grams is way too heavy, you need to cut that in half at least to get it to fly. Did you have one or two 12 inch diameter props? If one, how did you control the torque? What pitch(s)?

cypressfalls_Robert, a prop is the propellor or rotor which spins to create the lift in a helicopter (thrust for a plane). In a full size copter its the blades on the top of the copter which spin around, disk parallel to the ground. The motor stick is just the main structural element, usually a simple stick for these competitions, which holds the rubber motor. There's a hook on one end, and a bearing on the other to hold one of the rotors. The wound motor goes between the hook and the shaft of the rotor.

Hope that helps, if I can find more time, I'll try a drawing, but that's definitely NOT my strength.

Jeff Anderson
Livonia, MI
10 grams isn't that heavy.
My helicopter did pretty well and it weighed 9.5 grams and had a 6in diameter prop.
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Re: Helicopter B/C [Trial]

Post by get wrecked »

Are plastic and metal commercial bearings allowed?
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Re: Helicopter B/C [Trial]

Post by baker »

How many seconds is "pretty well"?

get wrecked wrote:
jander14indoor wrote:baker, 10 grams is way too heavy, you need to cut that in half at least to get it to fly. Did you have one or two 12 inch diameter props? If one, how did you control the torque? What pitch(s)?

cypressfalls_Robert, a prop is the propellor or rotor which spins to create the lift in a helicopter (thrust for a plane). In a full size copter its the blades on the top of the copter which spin around, disk parallel to the ground. The motor stick is just the main structural element, usually a simple stick for these competitions, which holds the rubber motor. There's a hook on one end, and a bearing on the other to hold one of the rotors. The wound motor goes between the hook and the shaft of the rotor.

Hope that helps, if I can find more time, I'll try a drawing, but that's definitely NOT my strength.

Jeff Anderson
Livonia, MI
10 grams isn't that heavy.
My helicopter did pretty well and it weighed 9.5 grams and had a 6in diameter prop.
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Re: Helicopter B/C [Trial]

Post by lllazar »

Hi, im new to this kind of event period, and i wanted to do it for state, just for fun....

How do u get the helicopter to fly? Yes stupid question, i know...im guessing u use a rubber band or something and make propellers to keep it in the air....could someone please explain?

And please dont tell me to read the rules, i have read them, and clearly i didnt understand them so im asking you kind people :D
2011 Season Events~

Fossils (Regionals ~1st) (State ~6th)
Towers (Regionals ~1st) (State ~3rd)
Helicopter (Regionals -3rd gahhh) (State ~5th)
Wind Power (Regionals ~1st) (State ~3rd TIERED!)

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Re: Helicopter B/C [Trial]

Post by get wrecked »

baker wrote:How many seconds is "pretty well"?

get wrecked wrote:
jander14indoor wrote:baker, 10 grams is way too heavy, you need to cut that in half at least to get it to fly. Did you have one or two 12 inch diameter props? If one, how did you control the torque? What pitch(s)?

cypressfalls_Robert, a prop is the propellor or rotor which spins to create the lift in a helicopter (thrust for a plane). In a full size copter its the blades on the top of the copter which spin around, disk parallel to the ground. The motor stick is just the main structural element, usually a simple stick for these competitions, which holds the rubber motor. There's a hook on one end, and a bearing on the other to hold one of the rotors. The wound motor goes between the hook and the shaft of the rotor.

Hope that helps, if I can find more time, I'll try a drawing, but that's definitely NOT my strength.

Jeff Anderson
Livonia, MI
10 grams isn't that heavy.
My helicopter did pretty well and it weighed 9.5 grams and had a 6in diameter prop.
ten seconds

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