X-Virus-Scanned: clean according to Sophos on Logan.com X-SpamCatcher-Score: 1 [X] Return-Path: Sender: To: lml Date: Tue, 09 Jan 2007 22:36:34 -0500 Message-ID: X-Original-Return-Path: Received: from ms-smtp-01.texas.rr.com ([24.93.47.40] verified) by logan.com (CommuniGate Pro SMTP 5.1.4) with ESMTP id 1748072 for lml@lancaironline.net; Tue, 09 Jan 2007 21:30:54 -0500 Received-SPF: pass receiver=logan.com; client-ip=24.93.47.40; envelope-from=jn@elp.rr.com Received: from [192.168.1.144] (cpe-70-117-164-85.elp.res.rr.com [70.117.164.85]) by ms-smtp-01.texas.rr.com (8.13.6/8.13.6) with ESMTP id l0A2TcYY017434; Tue, 9 Jan 2007 20:29:38 -0600 (CST) In-Reply-To: References: Mime-Version: 1.0 (Apple Message framework v752.2) Content-Type: multipart/alternative; boundary=Apple-Mail-11--1037067128 X-Original-Message-Id: X-Original-Cc: lml@texas.rr.com From: "Joseph Neustein, MD" Subject: Pinpoint vs Crossbow X-Original-Date: Tue, 9 Jan 2007 19:29:37 -0700 X-Original-To: Lancair Mailing List X-Mailer: Apple Mail (2.752.2) X-Virus-Scanned: Symantec AntiVirus Scan Engine --Apple-Mail-11--1037067128 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=WINDOWS-1252; delsp=yes; format=flowed As a D2A casualty and LancairAvionics customer I would like to echo =20 the posting of others who have acknowledged the very reasonable =20 proposal from Joe Bartels. The continued success of Lancair is in =20 the best interests of all members of this forum and I encourage =20 everyone to come to an accommodation with Joe. The offer is the best =20= compromise in ensuring that those in need of completing their Chelton =20= based panels get serviced and that Lancair remains sound and able to =20= provide builders with the parts and service we need. To help those of us who have received thus far neither a pinpoint nor =20= a crossbow, input from those who can speak from experience would be =20 most appreciated. Those flying with a Crossbow 425 which been returned to the = factory =20 for updating: Those flying with a Pinpoint: Joe Neustein ES-P with a pretty panel but no brains On Jan 9, 2007, at 6:21 PM, Mike Smith wrote: > In light of the recent pictures and information that have been =20 > posted on this forum, it appears that Brent Regan and Regan Designs =20= > has had a significant involvement in the development of the =20 > Pinpoint inertial unit. Brent clearly has a stake in the success =20 > of the Pinpoint unit and may want to disclose his affiliations when =20= > posting. Brent did not have direct involvement of the development =20 > or production of the NAV425EX unit and is not fully aware of its =20 > capabilities or functionality. Crossbow is glad to provide answers =20= > about NAV425EX design and functionality, more information is =20 > provided below. It may be more helpful if Regan/Pinpoint could =20 > provide more information about the following information since we =20 > believe these are all items that should be seriously considered =20 > before installing an AHRS into an aircraft: > > > > 1) Is it produced in an ISO9001 and FAA approved =20 > manufacturing facility? > > 2) Is a technical support staff available to assist =20 > customers? Is there a data sheet? > > 3) Has testing for GPS and airspeed data loss been completed =20 > and/or published? > > 4) Has Pinpoint been successful selling their product to any =20 > customers other than Chelton/D2A? > > > > In response to the questions below, the NAV425EX uses a combination =20= > of magnetometer input and patented algorithms to provide the best =20 > possible solution. We have specified the accuracy of this unit =20 > with and without GPS on the data sheet and although the unit will =20 > safely allow customers to fly the aircraft without GPS we feel that =20= > a solid GPS solution is optimal. One of the main advantages of the =20= > GPS solution is that it reduces cost for the installers since you =20 > are not required to mount a pitot static tube to the AHRS. > > > > The AHRS500 can accept optional air data input to further improve =20 > the accuracy of the product, and is an FAA certified platform. =20 > Similar to the NAV425EX, the AHRS500 can provide accurate data =20 > without air data aiding for periods of time due to its reliance =20 > upon patented algorithms and magnetometer input. > > > > Mr. Regan=92s suggestion that the fixes have not been detailed and =20 > explained is inaccurate. Crossbow has publicly detailed the fixes =20 > and procedures established to correct the bugs initially found in =20 > the NAV425EX on our website in February and March of 2006. http://=20 > www.xbow.com/Support/Support_pdf_files/Service_Letter_NAV425-06-02.pdf > > > > Crossbow will happily assist our customers in resolving =20 > installation issues and we encourage any of our customers that are =20 > having performance problems to contact us directly for further =20 > assistance. > > > > Sincerely, > > Michael Smith > Application Engineer Inertial Systems > Crossbow Technology > Email: msmith@xbow.com > Phone: 408-965-3388 > > > > --Apple-Mail-11--1037067128 Content-Transfer-Encoding: quoted-printable Content-Type: text/html; charset=WINDOWS-1252 As a D2A casualty and = LancairAvionics=A0 customer I would like to echo the posting of others = who have acknowledged the very reasonable proposal from Joe Bartels.=A0 = =A0The continued success of Lancair is in the best interests of all = members of this forum and I encourage everyone to come to an = accommodation with Joe.=A0 The offer is the best compromise in ensuring = that those in need of completing their Chelton based panels get serviced = and that Lancair=A0 remains sound and able to provide builders with the = parts and service we need.

To help those of us who = have received thus far neither a pinpoint nor a crossbow, input from = those who can speak from experience would be most = appreciated.

Those=A0flying with a = Crossbow 425 which been returned to the factory for = updating:

Those flying with a = Pinpoint:

Joe Neustein
ES-P = with a pretty panel but no brains



On Jan 9, = 2007, at 6:21 PM, Mike Smith wrote:

In light of the recent = pictures and information that have been posted on this forum, it appears = that Brent Regan and Regan Designs has had a significant involvement in = the development of the Pinpoint inertial unit.=A0 Brent clearly has a = stake in the success of the Pinpoint unit and may want to disclose his = affiliations when posting. =A0Brent did not have direct involvement of = the development or production of the NAV425EX unit and is not fully = aware of its capabilities or functionality.=A0 Crossbow is glad to = provide answers about NAV425EX design and functionality, more = information is provided below. It may be more helpful if Regan/Pinpoint = could provide more information about the following information since we = believe these are all items that should be seriously considered before = installing an AHRS into an aircraft:1)=A0=A0=A0=A0=A0=A0 = Is = it produced in an ISO9001 and FAA approved manufacturing = facility?

2)=A0=A0=A0=A0=A0=A0 = Is = a technical support staff available to assist customers? Is there a data = sheet?

3)=A0=A0=A0=A0=A0=A0 = 4)=A0=A0=A0=A0=A0=A0 = In response to the = questions below, the NAV425EX uses a combination of magnetometer input = and patented algorithms to provide the best possible solution.=A0 We = have specified the accuracy of this unit with and without GPS on the = data sheet and although the unit will safely allow customers to fly the = aircraft without GPS we feel that a solid GPS solution is optimal.=A0 = One of the main advantages of the GPS solution is that it reduces cost = for the installers since you are not required to mount a pitot static = tube to the AHRS.

=A0

The AHRS500 can accept optional air data input to further = improve the accuracy of the product, and is an FAA certified platform.=A0 = Similar to the NAV425EX, the AHRS500 can provide accurate data without = air data aiding for periods of time due to its reliance upon patented = algorithms and magnetometer input.=A0Mr. Regan=92s = suggestion that the fixes have not been detailed and explained is = inaccurate.=A0 Crossbow has publicly detailed the fixes and procedures = established to correct the bugs initially found in the NAV425EX on our = website in February and March of 2006.=A0

=A0

Crossbow will happily assist our customers in resolving = installation issues and we encourage any of our customers that are = having performance problems to contact us directly for further = assistance.

=A0

Sincerely,
=A0
Michael Smith
Application = Engineer Inertial Systems
Crossbow Technology =
Email:
Phone: 408-965-3388


= --Apple-Mail-11--1037067128--