2/27/2011  Finally !!!

width = 87" outside of tires
Weight = 13lbs
bottom of spar to ground = 17.5"







2/26/2011  Installed left main today...still need some AN hardware






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2/19/11  Left main gear is ready to install.  Still need some AN hardware.  Note to self...Don't build your own gear again.  LOL











2/9/2011  Lower legs are done.


1/19/2011  Received my Tracy Obrien C-90 disc brakes today for my AZUSA 6" wheels.  Here are some pics.  What's cool is that the whole unit including the disc stays with the gear when you remove a wheel.




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1/18/2011   Tailwheel ready:  One UniLoy (scott) 6" tailwheel with new bushings attached to a modified 1970 Ski-doo front ski leaf spring.



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12/08/2010  This is the basic design for my Seafury landing gear.  This design is from a 1979 Article by Tony Bingelis in EAA Sport Aviation magazine.  The legs will be covered with Streamline Strut fairings from http://www.streamline.8k.com/FAIRINGS.htm

You can download the complete article HERE

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PROGRESS

12/21/2010 update:  Almost have one gear done as you can see in the pictures.  The distance from the bottom of the spar to the ground will be 19".  Right where I wanted to be.  The gas welding is a slow process but I am getting the hang of it.  As of this stage the gear weighs just 9lbs 9 oz.  I will be right at 15/16 lbs with the wheel, tire and brakes.  NICE...

Makin' parts


Welding it up


Lookin' good




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This is Lynn Hyder's scratch built KR2.  My gear will look very similar.  The forward WAF will be replaced with a 7x9" landing gear mounting plate made from  .125 chromium-molybdenum general purpose alloy steel plate.  The upper part of the gear will be welded to this plate.

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Here is a Zenair 601.  That is the look I am after but with a more rounded tail and invasion stripes

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Click here for a front view

Click here for a side view 

11/17/2010 Here is a preliminary drawing of my main gear mount with the WAF integrated into it.

gear design PDF Link

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11/18/2010

design conciderations for load springs:

A/C max gross 1300#, assumed 90% loading on mains 1G=585# each gear, max load 3G or 1755# on each main,

Die spring model EH150-1200 from www.diamondwire.com

1.5OD, 12" free length, spring rate 544#/inch, load at solid 2,325#, max travel 3"

Each gears spring will compress 1" at 1300# max gross 

Todays changes: Main strut is now 1.75 OD .095wall tube with a 1.5 OD .095wall tube riding inside against the die spring

11/29/2010  Updated FWD cad drawing in PDF

11/30/2010  Updated SIDE cad drawing in PDF


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Brake master cylinder info:

6" long, ~8oz weight,

SKU Number:05735 $29.99 each from BMI Karts