X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Thu, 01 Sep 2011 13:27:55 -0400 Message-ID: X-Original-Return-Path: Received: from mail-vw0-f52.google.com ([209.85.212.52] verified) by logan.com (CommuniGate Pro SMTP 5.4.1) with ESMTPS id 5109961 for lml@lancaironline.net; Wed, 31 Aug 2011 21:16:31 -0400 Received-SPF: pass receiver=logan.com; client-ip=209.85.212.52; envelope-from=ivdiggs@gmail.com Received: by vws16 with SMTP id 16so1082863vws.25 for ; Wed, 31 Aug 2011 18:15:57 -0700 (PDT) MIME-Version: 1.0 Received: by 10.52.24.33 with SMTP id r1mr1034807vdf.279.1314839757082; Wed, 31 Aug 2011 18:15:57 -0700 (PDT) Received: by 10.52.159.4 with HTTP; Wed, 31 Aug 2011 18:15:57 -0700 (PDT) In-Reply-To: References: X-Original-Date: Wed, 31 Aug 2011 18:15:57 -0700 X-Original-Message-ID: Subject: Re: [LML] Gear Hand Pump LIV From: Matthew Collier X-Original-To: Lancair Mailing List Content-Type: multipart/alternative; boundary=20cf3079b89aa84f9404abd6fc0c --20cf3079b89aa84f9404abd6fc0c Content-Type: text/plain; charset=ISO-8859-1 Mr. Paczkowski, We have installed an emergency blow down accumulator in almost all of our customers IV's. They aren't light but are a much easier and faster way to get the gear down. When retrofitted to a flying IV we typically install the piston accumulator on the back of the spar box. Then we use two stainless steel ball valves mounted between the seats to operate the system, one on the forward spar box flange and the other on the aft. The forward valve releases the pressure holding the gear in the up position. The aft valve releases the fluid pressurized in the piston accumulator to the emergency side of the shuttle valve. When the valves are shut and the system is recharged in the down position the shuttle valve returns to its normal position and the accumulator will recharge during the next gear up cycle. We have had great success with this system and our customers even practice emergency blow downs in flight since it is completely reset each time without servicing. Matthew Fibercraft Inc. On Wed, Aug 31, 2011 at 4:42 AM, Nicholas Paczkowski wrote: > ** ** > > Perhaps a dumb question (apologies in advance) but Is there a better > alternative available to the manually operated hydraulic 'gear down' lever > (such as a charged gas bottle) that would eliminate both the awkward lever > and the seemingly inevitable leaking of hydraulic fluid? Thanks.**** > --20cf3079b89aa84f9404abd6fc0c Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable Mr. Paczkowski,
We have installed an emergency blow down accumulator in = almost all of our customers IV's. They aren't light but are a much = easier and faster way to get the gear down. When retrofitted to a flying IV= we typically install the piston accumulator on the back of the spar box. T= hen we use two stainless steel ball valves mounted between the seats to ope= rate the system, one on the forward spar box flange and the other on the af= t. The forward valve releases the pressure holding the gear in the up posit= ion. The aft valve releases the fluid pressurized in the piston accumulator= to the emergency side of the shuttle valve. When the valves are shut and t= he system is recharged in the down position the shuttle valve returns to it= s normal position and the accumulator will recharge during the next gear up= cycle. We have had great success with this system and our customers even p= ractice emergency blow downs in flight since it is completely reset each ti= me without servicing.

Matthew
Fibercraft Inc.

On Wed, A= ug 31, 2011 at 4:42 AM, Nicholas Paczkowski <npaczkowski@telus.net> wrot= e:

=A0=

Perhaps a dumb question (apologies in advance) but Is there a better altern= ative available to the manually operated hydraulic 'gear down' leve= r (such as a charged gas bottle) that would eliminate both the awkward leve= r and the seemingly inevitable leaking of hydraulic fluid? Thanks.


--20cf3079b89aa84f9404abd6fc0c--