REFLECTOR: main gear legs

Alex alex157 at pwhome.com
Fri Mar 30 15:04:30 CDT 2007


It would just seem to me that a more flexible (forgiving) landing gear would
be preferable to stiff ones that transfer energy into the airframe. I wanted
to see if there was a strength issue involved- seems like if the carbon
wraps would have held on Jean's plane there could have been some more
significant airframe damage done on that landing.

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From: reflector-bounces at tvbf.org [mailto:reflector-bounces at tvbf.org] On
Behalf Of Jeffrey C Barnes
Sent: Friday, March 30, 2007 9:50 AM
To: Velocity Aircraft Owners and Builders list
Subject: Re: REFLECTOR: main gear legs


Hi Alex, 
 
  Back a few years, Jean Prudhomme was flying show box at Sun-n-Fun on day
with 90degree x-wind gusting to 27kt. Applying max rudder on touchdown also
engaged brake. This caused gear leg to flex and cracked the carbon wraps,
loud enough to get pilot's immediate attention. Carbon had to be sanded off
and leg re-wrapped. There was no damage to underlying fiberglass. 
 
  There was another report on an early model velocity of an  non-carbon
wrapped gear leg bending back and hitting fuselage on landing: same
situation - brake engaged on landing. There was no apparent damage.
 
  Good case for toe brakes, VGs, TE fences, lower winglets and longer
rudders.
 
Regards,
 
Jeff Barnes

Alex <alex157 at pwhome.com> wrote:

speaking of carbon wrapped gear legs- has anyone ever had a non-heat related
main gear failure? Seems most of the hard landing damage occurs to the bolts
and bulkhead area.....

  _____  

From: reflector-bounces at tvbf.org [mailto:reflector-bounces at tvbf.org] On
Behalf Of MMurp16900 at aol.com
Sent: Thursday, March 29, 2007 10:26 PM
To: reflector at tvbf.org
Subject: Re: REFLECTOR: Fast Velocity



The weight and balance that I presented the FAA at original certification
was 3000 lbs. gross weight.
Gear legs are wrapped with carbon fiber and max landing weight 2700 lbs.
My useful load 1000 lbs
We operate out of 5300 ft runway length at standard day felid elevation 4400
ft
Mack   XL RG IO540 300 hp. 




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