Return-Path: Received: from mail.mc.net ([209.172.128.4]) by truman.olsusa.com (Post.Office MTA v3.5.1 release 219 ID# 0-52269U2500L250S0V35) with SMTP id com for ; Mon, 27 Sep 1999 19:48:08 -0400 Received: (qmail 26336 invoked from network); 27 Sep 1999 23:54:13 -0000 Received: from chi-ras-4-209-112-94-65.mc.net (HELO mc.net) (209.112.94.65) by mail.mc.net with SMTP; 27 Sep 1999 23:54:13 -0000 Message-ID: <37F0033F.48F71871@mc.net> Date: Mon, 27 Sep 1999 18:52:31 -0500 From: jerry@mc.net To: Scott Dahlgren , Kaye Subject: Re: LNC2 hydraulic hoses References: <000001bf0940$1f9cf440$0200000a@scottdah> X-Mailing-List: lancair.list@olsusa.com Mime-Version: 1.0 <<<<<<<<<<<<<<<<--->>>>>>>>>>>>>>>> << Lancair Builders' Mail List >> <<<<<<<<<<<<<<<<--->>>>>>>>>>>>>>>> >> For: Scott Dahlgren et al Hi Ed, This is another alternative to the mechanical system you refer to. I have spent 3 months trying to work out a system that would be mechanical yet elegant. This has been accomplished with flattering results. The system is not flight checked so the real results are yet to be proven. I am still putting in the main gear so there will be many months to go to prove this out. The system uses a telescoping push rod driven by an extra long bolt through the rod end of the main gear cylinder. This telescoping rod pushes on a bell crank which is linked to the inboard door. As the main gear is on the up stroke the telescoping push rod is moving. It's telescoping action creates a delay while the gear is moving up. While it's not yet bottomed out the inboard door is spring loaded over center and locked in the open position. Once the gear gets to a prescribed angle the push rod bottoms out. With the bottoming out, the bellcrank is then rotated, linking the inboard door to the up position. In the down cycle, part of the telescoping push rod follows the main cylinder rod end attachment. This allows a spring to pull, on the inboard push rod, to to rotate the bellcrank and pull the door (along with help from airloads), to the open, "overcenter and locked" position. Even in a slip the inboard doors will stay locked open. The builder has to make up the pushrods so that a small rod end can be screwed to the ends. The length of pushrods is a trial/error fitting. Once the system is installed/working and the checknuts tightened, there is no further adjustment to make. My push rods are stainless steel (one hollow, one solid) and are a perfect slipfit. They could be just about any material which is stiff, slipfit and lasting. There are no pictures of this system, sorry. Jerry Grimmonpre' LNC2 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> LML website: http://www.olsusa.com/Users/Mkaye/maillist.html