Wright Stuff B

bob3443
Member
Member
Posts: 233
Joined: November 5th, 2008, 7:57 pm
Has thanked: 0
Been thanked: 0

Re: Wright Stuff in Division B!!!

Post by bob3443 »

This is kind of stupid but does it matter if the propeller spins clockwise or counter-clockwise?
Image
andrewwski
Admin Emeritus
Admin Emeritus
Posts: 961
Joined: January 12th, 2007, 7:36 pm
Division: Grad
Has thanked: 0
Been thanked: 17 times

Re: Wright Stuff in Division B!!!

Post by andrewwski »

Yes. The propeller is going to be pitched in a certain direction. Thus having it turn in one direction means that it will create thrust toward the back of the plane, and having it turn in the other direction means it will create thrust toward the front of the plane (propelling your plane backwards).
bob3443
Member
Member
Posts: 233
Joined: November 5th, 2008, 7:57 pm
Has thanked: 0
Been thanked: 0

Re: Wright Stuff in Division B!!!

Post by bob3443 »

Yea, but i meant like if I want it to spin in circles to the left, does it matter which way the propeller spins?
Image
andrewwski
Admin Emeritus
Admin Emeritus
Posts: 961
Joined: January 12th, 2007, 7:36 pm
Division: Grad
Has thanked: 0
Been thanked: 17 times

Re: Wright Stuff in Division B!!!

Post by andrewwski »

Well yeah, since most if not all props are pitched to spin clockwise, if you made it spin the other way, you'd be thrusting backwards. Not going to work. Unless you make a major re-pitch to the prop (you'll probably break it if you try to twist it that much).

Plus the little notch on the prop itself that the music wire pulls on is set for it to spin in one direction. It won't work the other way.

But there should be no advantage to having your prop spin the opposite way, even if you could get it to work.
killerninja999
Member
Member
Posts: 10
Joined: November 20th, 2008, 6:32 am
Has thanked: 0
Been thanked: 0

Re: Wright Stuff in Division B!!!

Post by killerninja999 »

hay Question is there a specification on body length? The prop info realy helped :twisted: :geek:
bob3443
Member
Member
Posts: 233
Joined: November 5th, 2008, 7:57 pm
Has thanked: 0
Been thanked: 0

Re: Wright Stuff in Division B!!!

Post by bob3443 »

No, just the wing span, the stabilizer span and the stabilizer chord.

If I get the thrust bearing from http://indoorspecialties.com/index1.html, does it come with the metal shaft?
Image
jander14indoor
Member
Member
Posts: 1648
Joined: April 30th, 2007, 7:54 am
Has thanked: 0
Been thanked: 29 times

Re: Wright Stuff in Division B!!!

Post by jander14indoor »

I don't think so, you'll need to buy bearings seperately, try:
http://www.peck-polymers.com

Click Prices and ordering, look for thrust bearings under model supplies, click it. Specifically the small teflon washers, should be the first item listed if I directed you correctly.

Jeff Anderson
Livonia, MI
killerninja999
Member
Member
Posts: 10
Joined: November 20th, 2008, 6:32 am
Has thanked: 0
Been thanked: 0

Re: Wright Stuff in Division B!!!

Post by killerninja999 »

what is the wing cord and wing width specification? have a snow day :D :ugeek:
User avatar
Pleiades
Exalted Member
Exalted Member
Posts: 563
Joined: April 14th, 2008, 4:16 pm
Division: Grad
State: AL
Has thanked: 0
Been thanked: 1 time

Re: Wright Stuff in Division B!!!

Post by Pleiades »

Wow a snow day already? Where you from?
The wing must be under 40cm in length and there's no rule on the chord.
killerninja999
Member
Member
Posts: 10
Joined: November 20th, 2008, 6:32 am
Has thanked: 0
Been thanked: 0

Re: Wright Stuff in Division B!!!

Post by killerninja999 »

I'm from berrien springs firstly. Secondly I ment stabalizer width and cord
:lol:
Post Reply

Return to “2009 Build Events”

Who is online

Users browsing this forum: No registered users and 1 guest