aluminum l.g.

[chadnortheast at shaw.ca]

Just for reference, ZN Line gear and wheelpants is about 3.6-3.7 oz, it is not cheap though.  They are hollow gear like a Mezlik prop.

If it can survive our field it should be able to handle anything else with ease :)

Chad

----- Original Message -----
From: Wayne Galligan <wgalligan at goodsonacura.com>
Date: Wednesday, July 16, 2003 11:40 am
Subject: aluminum l.g.

> I should have known.   Karl you are the aluminum man.   BTW the 
> header you made for my ST2330 has survived a major crash.  It got 
> bent a little, just put it in the vise and straightened it out to 
> live in another airplane.
> 
> Where can one purchase this fine aluminum and how much should it cost?
> 
> Sounds like you  could come close to the weight of c.f.  Although 
> I like the swept back gear design for some airplane designs.
> .
> Wayne Gallilgan
>  ----- Original Message ----- 
>  From: Karl G. Mueller 
>  To: discussion at nsrca.org 
>  Sent: Wednesday, July 16, 2003 11:46 AM
>  Subject: Re: fixed gear vs. retracts
> 
> 
>  Wayne,
> 
>  7075T6 should never be used as landing gear. It will fracture
>  when trying to bend it. A better choice would be 2024T3. This is the
>  springiest type of aluminum available. Since a lot of suppliers 
> do not
>  have it as a stock item, 6061T6 is the next best type to use and 
> is readily 
>  available at most metal suppliers. I have been using legs made 
> out of
>  1/8" - 6061T6 and had very good results with it. Total weight of 
> the 2 legs
>  without wheels and pants is 6oz. The gear legs are of the plug-
> in type and
>  overlap inside the Fuse. I have one set that has outlived 3 
> planes and is 
>  still in use. 
>  I seen too many carbon gears break on heavy landings (read semi 
> crashes)  and to replace these is not cheap. I buy a sheet of 24"x 
> 48 " and cut the legs
>  from this. You have to remember to cut the legs with the grain 
> running along the
>  legs and not across (yes, metal also has a grain to it !). The 
> bend at the
>  upper part of the leg should be done over a large radius (1 1/4" 
> to 1 1/2" Dia.)
>  Do not make any sharp bends and the alum. will not fracture.
>  This works for me.
> 
>  Karl G. Mueller
>  kgamueller at rogers.com
> 

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