2011 Heli Specifications

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smartkid222
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2011 Heli Specifications

Post by smartkid222 » September 3rd, 2010, 8:22 am

The rules should be arriving soon. I would appreciate it if someone could post the specifications here as soon as they arrive. I'm sure everyone is wondering what they are and a lot of people don't get their rulebooks for a while. Thanks.
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Re: 2011 Heli Specifications

Post by fleet130 » September 3rd, 2010, 1:08 pm

Construction rules and allowed materials are pretty much as in the past for Wright Stuff

A quick scan reveals:
......1. Minimum total mass(excluding rubber motor) 4.0g
......2. Rotors must all be on same axis of rotation (my interpretation of 2.d, line 1)(Edit:See post below)
......3. Up to 3 fixed pitch rotors
......4. Maximum rotor diameter 40.0cm
......5. Rotors constructed by contestants-commercially manufactured rotors/propellors not allowed
......6. No limit on number of blades or their chord
......7. No other lifting surfaces
......8. Rubber motor must not exceed 2.0g
......9. Any type string maybe used for bracing
.....10. Penalty for no/incomplete flight log
Information expressed here is solely the opinion of the author. Any similarity to that of the management or any official instrument is purely coincidental! Doing Science Olympiad since 1987!

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Re: 2011 Heli Specifications

Post by jander14indoor » September 3rd, 2010, 6:26 pm

Hmmm, changed the wording on us and I missed it. Anyway, not how I'd interpret rule 2.d. I think the axis refers to a SINGLE rotor, not all three. Probably worth a clarification question once they open up.

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Re: 2011 Heli Specifications

Post by fleet130 » September 4th, 2010, 10:38 am

jander14indoor wrote:I think the axis refers to a SINGLE rotor
My bad! On re-reading, I agree that is the intent. Unfortunately, "Rotors" implies all of the rotors. For clarity, rotors should be rotor and not included in the definition. e.g., Rotor: Defined as surfaces...
Information expressed here is solely the opinion of the author. Any similarity to that of the management or any official instrument is purely coincidental! Doing Science Olympiad since 1987!

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Re: 2011 Heli Specifications

Post by illusionist » January 2nd, 2011, 8:59 am

Do the rules prohibit the use of metal and rubber as ballast material?
I can't find anything that says yes, or no...
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Re: 2011 Heli Specifications

Post by lllazar » January 2nd, 2011, 9:32 am

I think a ballast is some sort of extra mass to provide stability? Couldn't you just use clay of some sort?
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Re: 2011 Heli Specifications

Post by chia » January 5th, 2011, 8:47 pm

How exactly would you use rubber/metal as ballast anyway? I've used clay.
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Re: 2011 Heli Specifications

Post by illusionist » January 6th, 2011, 4:07 am

Clay probably is abetter alternative, but I had metal on hand so I just used that :P
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Re: 2011 Heli Specifications

Post by smartkid222 » January 6th, 2011, 1:25 pm

clay, rubber, or metal balast is not allowed.
You must use either glue or tape for extra weight.
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Re: 2011 Heli Specifications

Post by illusionist » January 6th, 2011, 4:10 pm

Really?? That's gonna suck... O__o
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