REFLECTOR: Seat screws

[Rene Dugas]

Serum Cholesterol?

Rene', MD

Great post.

 

From: reflector-bounces at tvbf.org [mailto:reflector-bounces at tvbf.org] On
Behalf Of Stockman, Bill
Sent: Monday, January 09, 2012 1:18 PM
To: jerry at jlbent.com; Velocity Aircraft Owners and Builders list
Subject: Re: REFLECTOR: Seat screws

 

My problem has been that the seat brackets actually twist  and that you
eventually will bend and break the fiberglass seat pans if the seat hinges
are well-attached.    Apparently my airplane has shrunk since I bought the
kit in 1997, since the seats now react like the pilot gained over 40 lbs in
15 years . . . . . . . . . . which we all know is impossible.

 

I know that when I sit my muscularly-toned physique in the pilot's seat, it
bends back quite a bit.   I've made several repairs, new seat hinges, etc.
but the seat apparently is losing the war with my fat $%^&%.     I also have
relatively large sitting height compared to my total height, which means I
have to have the seat pan low and tilted to keep from hitting my head on the
ceiling-this just makes the moment arm worse on the hinges.    The copilot
seat which gets less use and is normally filled by my significantly lighter
wife, has none of these issues.      My next fix will be to get new seat
pans that I will reinforce and thicker heavy duty stainless steel hinges.
My wife believes it would be easier to just lose the weight.    

 

 

 

Bill Stockman

Senior Associate

Dayton Aerospace, Inc.

 

937.426.4300  Office

937.369.4799  Cell

bill.stockman at daytonaero.com

www.daytonaero.com

 

From: reflector-bounces at tvbf.org [mailto:reflector-bounces at tvbf.org] On
Behalf Of jerry at jlbent.com
Sent: Monday, January 09, 2012 1:59 PM
To: Velocity Aircraft Owners and Builders list
Subject: Re: REFLECTOR: Seat screws

 

Chris,

 

I don't know if everyone is seeing the same problem, but we certainly did on
N44VF.  It is not weight as much as geometry of the brakes.  I seems that
you end up with your shoulders providing a major part instead of your hips.
This put a big lever (the seat back) in the system.  The solution is easy.
Replace the puny 10-32 with 1/4-20 or 1/4-28.  I believe 1/4-20 are better
in aluminum.  Once we did that, the bolts held up just fine.

 

 

Jerry Brainard
Jerry at JLBEnt.com

	
-------Original Message-------
From: Chris Barber 
To: Velocity Aircraft Owners and Builders list 
Subject: REFLECTOR: Seat screws
Sent: Jan 07 '12 4:45pm

I was wondering if others had had trouble with the seat hinge screws
breaking and/or distorting. I have had to replace twisted and broken screws
a few times now. Ok, while I am by no means a small man (5'10 at 200 lbs) I
am not so big that I would think I would be stressing these parts.

 

 

One thought is that I have been standing on the brakes a lot doing engine
run ups and testing, but still it seems odd.

 

 

I have now added extra screws by tapping out additional screw holes. I am
close enough to hopefully successful flight that I wanted to address this
gremlin.

 

 

I had the tech out to test my transponder and it has a problem so he took it
to take a look (really nice and helpful guy for those in SE Texas). Next
step, squawk party....

 

 

Chris

  _____  

_______________________________________________
To change your email address, visit
http://www.tvbf.org/mailman/listinfo/reflector

Visit the gallery!  www.tvbf.org/gallery
user:pw = tvbf:jamaicangoose
Check new archives: www.tvbf.org/pipermail
Check old archives: http://www.tvbf.org/archives/velocity/maillist.html

 

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://www.tvbf.org/mailman/private/reflector/attachments/20120109/0c94204c/attachment.htm>