REFLECTOR: nose gear air seal

Terry Miles terrence_miles at hotmail.com
Mon Nov 24 18:08:18 CST 2008


Whoa.  Great ideas.  Where was I when that got talked about? When I drop the
gear I get a plentiful blast of wake up air, and have been mulling over some
methods to wind proof a little better in the "gear down" ops regime.  These
are some great ideas.  Thanks Chuck.

 

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From: reflector-bounces at tvbf.org [mailto:reflector-bounces at tvbf.org] On
Behalf Of Chuck Jensen
Sent: Monday, November 24, 2008 3:50 PM
To: Velocity Aircraft Owners and Builders list
Subject: Re: REFLECTOR: nose gear air seal

 

Some time ago, someone posted that they put a boot on the retract nose gear
leg and anchored it to the slot opening that the nose gear strut moves
through.  Apparently quite effective.

 

I wonder if, even with John's silicone trick, the nose gear doors can ever
be sealed tight enough, consistently enough, to reduce air intrusion into
the nose area, by a meaningful amount.  

 

I cut down the air intrusion from the nose gear opening in the front
bulkhead that transited into the cabin through the opening in the top of the
keel by using a few pieces of soft foam stuffed in opening around the wires
and elevator push tube.  Cheap and the friction on the tube is so small
that's it imperceptible.  

 

Where the elevator tubes penetrate the side of the hull, I took the plastic
shower rod protectors that snap over a show curtain rod, cut off a 1" piece
which snaps over the aileron tube and slide it between the tube and the
fuselage sidewall.  The gap between the plastic tube protector can then be
caulked shut but the elevator tube will still move inside the plastic sheath
with near zero friction.  This only works with the offset aileron tubes that
rotate around the the tube axis and doesn't move laterally.


Chuck Jensen 

-----Original Message-----
From: reflector-bounces at tvbf.org [mailto:reflector-bounces at tvbf.org]On
Behalf Of John Dibble
Sent: Monday, November 24, 2008 1:21 PM
To: Velocity Aircraft Owners and Builders list
Subject: Re: REFLECTOR: nose gear air seal

Seal with silicone.  You can use silicone on the center joint between the
two doors and then cut them apart with a utility knife.  For all other areas
you need to protect one surface with saran wrap so you don't seal your doors
shut. 

John 

mike.roberts at kennametal.com wrote: 


Hello everyone... 

I have an XLRG and get a lot of cold air (winter time) that comes up through
the nose gear opening. The nose gear doors don't form a good seal and the
opening near the gear's pivot axle is where all of the air comes from. I was
wondering if any of you have come up with a solution to seal this area or at
least reduce the air flow. 

Mike W Roberts 
Director of Sales, Americas 
Metalworking Solutions & Services Group 
Kennametal Inc. 
1662 MacMillan Park Drive 
Fort Mill, SC 29707 
Office 803-578-4590 
Cell 843-597-2293 
email: mike.roberts at kennametal.com 

Imperfect action is better than perfect inaction....DO IT NOW... 
  
  






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