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Re: Europa-List: Re. mono gear collapse

Subject: Re: Europa-List: Re. mono gear collapse
From: GLENN CROWDER <gcrowder2@hotmail.com>
Date: Wed, 28 Feb 2007 23:58:31

  I sure bounced the hell out of some early landings with my mono till I 
figured
it out (just get the tail down first - duh!) to the point I thought I was 
going
to prop strike but no u/c collapse.  I have the mod to stiffen the u/c lever 
but
still have not installed it.  The lever is still very tight with no play 
after 400 hrs.
  My flaps can be left in any position in slow flight and they will not move 
up
or down.   I only fly off of pavement tho.  I plan to tighten the u/c bungee
this spring as raising the gear that last inch into the detent can be 
difficult.

                                          Glenn

>From: "William Mills" <william@wrmills.plus.com>
>Reply-To: europa-list@matronics.com
>To: <europa-list@matronics.com>
>Subject: Re: Europa-List: Re. mono gear collapse
>Date: Thu, 1 Mar 2007 06:13:45 -0000
>
><william@wrmills.plus.com>
>
>Ron,
>I know of at least two monos that have ground away the front of the 
>outrigger spat right through to the front face of the wheel fork tube and 
>removed the head of the retaining bolt.  This happens during a ground loop 
>owing to strong crosswinds on a hard runway.  The leg is bent horizontal 
>when this happens, but it does not cause it to collapse.  The U/C will also 
>withstand an A/C drop after hitting a bump on landing below flying speed, 
>sufficient to break the prop, but the U/C does not collapse.  Hope this 
>give mono builders confidence, that if the over-centre is correct, the 
>system should not collapse owing to heavy treatment.
>Regards,
>William
>
>
>----- Original Message ----- From: <rparigor@suffolk.lib.ny.us>
>To: <europa-list@matronics.com>; "Jon Smith" <jonsmitheuropa@tiscali.co.uk>
>Sent: Wednesday, February 28, 2007 5:31 PM
>Subject: Re: Europa-List: Re. mono gear collapse
>
>
>>
>>Hello Jon
>>
>>I read your post, and:
>>"the following is pure speculation!" I am not sure that will really
>>happen.
>>
>>As far as my speculation, I believe that a rammed and jammed LG08 against
>>its stop that is 1/16" to 1/8" overcentre can be brought undercentre!
>>
>>How???
>>
>>Lets say you hit a ski jump on take off, the plane will get light, and
>>lets say it is not ready to fly, then when it comes back down, one wing is
>>slight low (matters not which one), then a outrigger latch decides to be
>>defeated at that very moment. Can the rearward force on the outrigger, be
>>applied to the flap, which will be applied to the cross tube, then the
>>connecting rod and ultimate to the starboard LG08 forcing it
>>undercentre???
>>
>>My wings are not rigged yet, can someone next time when doing a gear swing
>>test, defeat a outrigger latch and push aft on gear leg and have a look at
>>starboard LG08 to see if it can be lifted off its stop?
>>
>>
>>Thx.
>>Ron Parigoris
>>
>>
>>
>>
>>
>>
>>
>>
>>
>
>

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