This might be something you could modify to fit the rules or use as a design go by.
https://www.a2zcorp.us/store/SearchDisplay.asp?Cguid={E898E72F-D7E2-4A50-BF95-553ACBD66B1A}
----- Original Message -----
From: and4metoo
To: Indoor_Construction_at_yahoogroups.com
Sent: Sunday, October 25, 2009 12:05 PM
Subject: [Indoor_Construction] Re: Science Oly - Helicopter Duration (pilot event)
Sorry, I refer to Lew Gitlow, I mistakenly left out his last name.
--- In Indoor_Construction_at_yahoogroups.com, "and4metoo" <stankos_at_...> wrote:
>
> Folks, please forgive me if this topic has been discussed already as I have been away for a while. Science Oly this year is doing a Helicopter event for max flight duration. A little research on google yields the "Wright Bat" and "Jim Walkers's Ceiling Walker", but not much more than that. Hard to locate any plans. I looked thru my Indoor Flying Models book by Lew and there is some reference to Dick Obarski's 1938 model, as well as Lew 1980 and Tom Valiee (corkscrew). I guess I'm asking if any of you all have any experience in building / designing / flying indoor helicopters. Usual rules of wood and paper, total mass 5.0 grams, up to 3 fixed pitched rotors max dia. 30 cm. each. No max number of blades or their cord. Motors - 2 gram max. Any plans out there? Thanks...
> Pete stanko
>
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