X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Mon, 23 Sep 2013 18:26:34 -0400 Message-ID: X-Original-Return-Path: Received: from mail-pa0-f51.google.com ([209.85.220.51] verified) by logan.com (CommuniGate Pro SMTP 6.0.7) with ESMTPS id 6487169 for lml@lancaironline.net; Mon, 23 Sep 2013 16:37:54 -0400 Received-SPF: pass receiver=logan.com; client-ip=209.85.220.51; envelope-from=pjdmiller@gmail.com Received: by mail-pa0-f51.google.com with SMTP id kp14so2741043pab.38 for ; Mon, 23 Sep 2013 13:37:18 -0700 (PDT) X-Received: by 10.66.132.69 with SMTP id os5mr9373440pab.114.1379968638014; Mon, 23 Sep 2013 13:37:18 -0700 (PDT) X-Original-Return-Path: Received: from [192.168.1.122] (S010620aa4b008706.cg.shawcable.net. [174.0.112.194]) by mx.google.com with ESMTPSA id 7sm40227864paf.22.1969.12.31.16.00.00 (version=TLSv1 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Mon, 23 Sep 2013 13:37:16 -0700 (PDT) Subject: Re: [LML] Re: anti-skid (ABS) brakes on the Lancair References: From: Paul Miller Content-Type: multipart/alternative; boundary=Apple-Mail-271FD7D7-6F88-4E82-AAF3-FAC73B4CBBE2 X-Mailer: iPad Mail (10B146) In-Reply-To: X-Original-Message-Id: <88868044-ECED-444F-A169-096D4C55F6CC@gmail.com> X-Original-Date: Mon, 23 Sep 2013 14:37:16 -0600 X-Original-To: Lancair Mailing List Content-Transfer-Encoding: 7bit Mime-Version: 1.0 (1.0) --Apple-Mail-271FD7D7-6F88-4E82-AAF3-FAC73B4CBBE2 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: quoted-printable Can you measure wheel speed somehow? Maybe the new wireless sensors inside t= he tire can transmit rotational acceleration as well as tell you pressure is= low. What does it cost to change out a set of evolution tires? Paul On 2013-09-23, at 14:10, andres katz wrote: > cheaper? not the evo tires those low profile are expensive as hell and you= need a bead breaker to replace them > a car tire shop job, they wont do them if you tell them they are from airp= lane. >=20 > On Sep 23, 2013, at 09:26 AM, Paul Miller wrote: >=20 >> A requirement would be to measure wheel speed. On the bike, we use hall e= ffect sensor and ridged disk. You would need a system on each main to measur= e rotation speed. If the Cleveland rotor had bumps on the outside surface th= at would work and I would just mount the pickup to the brake caliper. That w= ould be the starting point. >>=20 >> directional stability could come from a yaw damper circuit or heading gyr= o output. >>=20 >> Two spare main tires on the shelf might be cheaper. >>=20 >> Paul >>=20 >> On 2013-09-23, at 6:08, jeffrey liegner wrote: >>=20 >>> I was at the airport on this beautiful Fall day and another builder (RV6= ) asked me about installing an ABS braking system on the Lancair to help wit= h stopping (without creating a flat spot). He reports that even BMW motocycl= es have anti-skid brakes. >>> http://en.wikipedia.org/wiki/Anti-lock_braking_system >>> BMW Motocycle: http://en.wikipedia.org/wiki/File:Absbrakes.jpg >>> Has anyone given anti-skid (ABS) brakes any consideration in the Lancair= ? Just curious. >>> Jeff L >>> LIVP >>> -- >>> For archives and unsub http://mail.lancaironline.net:81/lists/lml/List.h= tml >>=20 >> -- >> For archives and unsub http://mail.lancaironline.net:81/lists/lml/List.ht= ml --Apple-Mail-271FD7D7-6F88-4E82-AAF3-FAC73B4CBBE2 Content-Type: text/html; charset=utf-8 Content-Transfer-Encoding: quoted-printable
Can you measure wheel speed somehow? &= nbsp;Maybe the new wireless sensors inside the tire can transmit rotational a= cceleration as well as tell you pressure is low.  What does it cost to c= hange out a set of evolution tires?

Paul

On 2013-09-23,= at 14:10, andres katz <yak55m@iclou= d.com> wrote:

cheape= r? not the evo tires those low profile are expensive as hell and you need a b= ead breaker to replace them
a car tire shop job, they wont do them= if you tell them they are from airplane.

On Sep 23, 2013, at 09:26 A= M, Paul Miller <pjdmiller@gmail.co= m> wrote:

A requirement would be to measure wheel sp= eed. On the bike, we use hall effect sensor and ridged disk. You would need a= system on each main to measure rotation speed. If the Cleveland rotor had b= umps on the outside surface that would work and I would just mount the picku= p to the brake caliper. That would be the starting point.

direction= al stability could come from a yaw damper circuit or heading gyro output.
Two spare main tires on the shelf might be cheaper.

Paul
=
On 2013-09-23, at 6:08, jeffrey liegner <liegner@ptd.net> wr= ote:

I was at t= he airport on this beautiful Fall day and another builder (RV6) asked me abo= ut installing an ABS braking system on the Lancair to help with stopping (wi= thout creating a flat spot). He reports that even BMW motocycles have anti-s= kid brakes.
http://en.wikipedia.o= rg/wiki/Anti-lock_braking_system
BMW Motocycle: http://en.wikipedia.org/wiki/File:Absbrakes.jpg
Has anyone given anti-skid (= ABS) brakes any consideration in the Lancair? Just curious.
Jeff L
LIVP
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