ALUMINUM TUBING!

Locked
NYCSCIOLY
Member
Member
Posts: 5
Joined: October 24th, 2012, 2:34 pm
Division: B
State: NY
Location: NYC AREA
Has thanked: 0
Been thanked: 0

ALUMINUM TUBING!

Post by NYCSCIOLY » October 24th, 2012, 2:37 pm

Hey guys I'm a 8th grader at MS 67 in the NYC area I want to know the exact aluminum tubing and piano wire size shown in this video.
http://www.youtube.com/watch?feature=pl ... rUuqjsqFRE
THX!

retired1
Member
Member
Posts: 675
Joined: July 25th, 2012, 5:04 pm
Division: Grad
State: FL
Has thanked: 0
Been thanked: 0

Re: ALUMINUM TUBING!

Post by retired1 » October 24th, 2012, 3:39 pm

I will guess that he is using 3/32 or 1/8" tubing. 1/16 will work fine for most uses.
His piano wire looks like it could be more than 0.040" which is mega heavier than needed. Try some 0.020 and 0.025.

Look up on the internet to find the ID's of the small aluminum tubing and make your piano wire about 0.010" smaller.

If you are using a standard 12" boom and 0.125 rubber, you will be surprised on how thin a wire you need. Excess weight is not good for helicopter competition.

Who's kit are you planning to use??

NYCSCIOLY
Member
Member
Posts: 5
Joined: October 24th, 2012, 2:34 pm
Division: B
State: NY
Location: NYC AREA
Has thanked: 0
Been thanked: 0

Re: ALUMINUM TUBING!

Post by NYCSCIOLY » October 24th, 2012, 3:43 pm

Thanks a lot and I'm not using a kit for the competition. Planning to hand build everything that I can.

retired1
Member
Member
Posts: 675
Joined: July 25th, 2012, 5:04 pm
Division: Grad
State: FL
Has thanked: 0
Been thanked: 0

Re: ALUMINUM TUBING!

Post by retired1 » October 25th, 2012, 3:33 pm

NYCSCIOLY wrote:Thanks a lot and I'm not using a kit for the competition. Planning to hand build everything that I can.
From your question, I will guess that you are relatively new to this event. Consider a kit for your first chopper as the instructions and the jigs are worth the price. I do not consider a parlor mate as a good kit. Personal opinion.

isaysroar
Member
Member
Posts: 78
Joined: November 12th, 2012, 6:22 pm
Division: C
State: PA
Has thanked: 0
Been thanked: 0

Re: ALUMINUM TUBING!

Post by isaysroar » January 23rd, 2013, 3:50 pm

Well if you want to go cheaper with the aluminum tubing you can always use an alternate. You can use a long tube-like bead to replace the aluminum tubing. Works just as well! Buying the whole piece is just TOO expensive, when you just need that small 3 mm piece.
2013
Disease Detectives- 4th
Helicopters- 1st
Road Scholar- 5th
Write it Do it- 2nd

Itsanthonguise
Member
Member
Posts: 26
Joined: December 22nd, 2011, 1:25 pm
Division: B
State: CA
Has thanked: 0
Been thanked: 0

Re: ALUMINUM TUBING!

Post by Itsanthonguise » February 9th, 2013, 8:46 am

just wondering... what is aluminum tubing for?
2012 Events
State: Shock Value - 8th place
Nationals: Helicopter Egg Drop - 6th place
2013 Events
Regionals:
Helicopters-2nd place
Rotor Egg Drop-3rd place
State:
Helicopters:-5th place
Rotor Egg Drop-5th place
Nationals:
Helicopters:-17th place
Rotor Egg Drop-46th place

isaysroar
Member
Member
Posts: 78
Joined: November 12th, 2012, 6:22 pm
Division: C
State: PA
Has thanked: 0
Been thanked: 0

Re: ALUMINUM TUBING!

Post by isaysroar » March 17th, 2013, 8:02 pm

It's so that you can insert your thrust bearing into the frame of the helicopter to reduce friction. Something like that:) It really helps with friction.
2013
Disease Detectives- 4th
Helicopters- 1st
Road Scholar- 5th
Write it Do it- 2nd

Locked

Return to “Helicopters B”

Who is online

Users browsing this forum: No registered users and 1 guest