| Author |
Message |
    
Brian McKinney
New member
Username: Bmckinney
Post Number: 77
Registered: 05-2000
| | Posted on Tuesday, March 15, 2005 - 03:23 pm: | |
Roger,
Just to clarify, the bushing in the black clamp only goes in the upper portion of the clamp. The bushing does not go through the lower portion (the one with the threaded holes).
I don't have a part number or a source since I got these from EAC about three years ago. Sorry!
Brian |
Gary Markwardt
New member
Username: Gmark
Post Number: 31
Registered: 12-1999
| | Posted on Tuesday, March 15, 2005 - 04:13 pm: | |
Brian,
Didn't when I first opened it, but I do now. You're obviously more patient & smarter than me! Nice pictures. Looks the same as my bracketry from year 2000.
Gary |
Roger Spencer
New member
Username: Roger
Post Number: 18
Registered: 05-2001
| | Posted on Tuesday, March 15, 2005 - 08:22 pm: | |
Brian
Great pictures! Mine seems to be like yours but both the upper and lower bracket have holes larger than the hardened pin and need some sort of bushing. It has to be shorter than the combined thickness of the two brackets or it will allow the brackets to move fore and aft on the bushing in service. I found a standard flange bushing for the aluminum but the ones with the right diameters are all too long for the steel brackets. I guess I'll have to modify a bushing to shorten it for this application. |
Brian McKinney
New member
Username: Bmckinney
Post Number: 78
Registered: 05-2000
| | Posted on Tuesday, March 15, 2005 - 09:20 pm: | |
Roger,
I will take another look at my brackets again tomorrow to see how big the hole is on my lower bracket.
I would guess that if it is bigger like yours, they were assuming that the hanging force of the gear on the lower bracket probably wouldn't cause any issue. The upper bracket needs the bushing to handle the large load during landing.
By the way, this information I am providing is going to get me in trouble. Norris will read this and start calling me asking why haven't I installed the gear yet and closed the wings, and why haven't I got this thing built yet, etc...  (right Wayne?)
Have fun!
Brian |
Allyn Roe
Unregistered guest
| | Posted on Tuesday, March 15, 2005 - 09:41 pm: | |
The bushing for the landing gear clamps are a NAS77-7-037.
|
Brian McKinney
New member
Username: Bmckinney
Post Number: 79
Registered: 05-2000
| | Posted on Wednesday, March 16, 2005 - 07:53 am: | |
Roger,
Checked out my clamps again this morning. The bushing does protrude most of the way through the lower (inner) clamp too. Here's a picture...
Brian |
Steve Bussey
New member
Username: Geosync
Post Number: 8
Registered: 01-2003
| | Posted on Thursday, March 17, 2005 - 05:50 am: | |
Gary M:
From your photo it looks like you are using the glass legs like I did.
You may want to install a half inch phenolic spacer between the gear leg and its inboard attach bracket . This changes the camber by bringing the wheels inboard a little, plus raises the plane a little as well. It will help reduce tire wear. I posted a discussion on this in the Jan 18 archive in this discussion. It will be a lot easier now than after wing close out!
Steve Bussey |
Roger Spencer
New member
Username: Roger
Post Number: 19
Registered: 05-2001
| | Posted on Thursday, March 17, 2005 - 05:25 pm: | |
Thanks Brian and Allyn
It's this kind of support and collective knowledge that makes this forum so useful and critical to all of us. |
Gary Markwardt
New member
Username: Gmark
Post Number: 32
Registered: 12-1999
| | Posted on Saturday, March 19, 2005 - 01:40 pm: | |
Steve:
Although I orinally built with the fiberglass gear, I switched to the aluminum gear after going thru a set of tires in fairly short order. I used the same attaching points for the Al gear. The photo was from my builder log. Hence, the fiberglass gear is shown.
Thanks for thinking about me, Steve. Perhaps some of the other fiberglass guys can use the tip. |
Werner Maag, CH8174 Stadel, Switzerland
New member
Username: Wmaag
Post Number: 22
Registered: 01-2003
| | Posted on Wednesday, April 12, 2006 - 10:34 am: | |
Gary and others:
When finalizing my papers for the final inspection, I did ask for a moderate increase of the max T/O weight limt of 3200 lbs instead of 2900 lbs. My engineer found the Alu gear leg bend out of the wing too sharp to allow more than 2900 lbs! With an empty weight of 2090 lbs (all that leather and extra gadgets!) my payload is not really sufficient for a 4 seater.
Q: has anybody a cue of the alu specs and heat treatment of the gear legs, so I could at least argue with the engineers. Last way out could be a landing weight restriction to 2900 lbs and T/O weight somewhat higher.
thanks for all help, Werner Maag |
Allyn J. Roe
New member
Username: Allynroe
Post Number: 4
Registered: 11-2003
| | Posted on Wednesday, April 12, 2006 - 12:01 pm: | |
Check with:
Grove Aircraft
1800 Joe Crosson Drive
El Cajon, CA 92020
(619) 562-1268
They manufacture the gear legs and could give you material specs. |
Terry Sack
New member
Username: Terrysack
Post Number: 36
Registered: 11-2002
| | Posted on Thursday, April 13, 2006 - 05:48 pm: | |
Werner, when I upgraded to the aluminum gear Larry Olsen assured me that I could use the 3400# max. weight that he was using on the latest Express' at the the time. I have an original Wheeler Express CT model. Been flying three years now. I closely inspect the gear and the attach points at each annual condition inspection. I have often flown at gross weight. Hopes this helps your decision and your final approval. Terry Sack |
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