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Date: Mon, 08 Dec 2008 14:07:44 -0500
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From: billhogarty@hughes.net
Subject: IVP Gear Doors
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For Andres:<br /><br />I agree with Bob Pastusek's thoughts on this topic; =
i.e. rebuilding the doors to use the thicker slider material.<br /><br />I =
experienced problems with the gear hanging up on the door, right after I sh=
immed the wheels to correct the alignment.&nbsp; In addition to the thicker=
 slider, I molded in a piece of 3/8ths aluminum tubing shaped as an "L" in =
each door, hoping to prevent the door flexing in flight.&nbsp; Finally, I h=
ad to hinge the rear of both doors to permit the doors to open far enough s=
o that the gear wouldnt hang up on the door during retraction.<br /><br />F=
rom the many retraction tests I ran, I concluded that the gear sequence dur=
ing retraction is not always the same;&nbsp; that it depends on several var=
iables.&nbsp; That was the main reason that I added the hinged area to the =
rear of both doors.<br /><br />Finally, I have found that, on takeoff, wait=
ing to retract the flaps untill I hear the gear doors slam shut, seems to b=
e beneficial.&nbsp; <br /><br />Regards, Bill Hogarty