X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from co9outboundpool.messaging.microsoft.com ([207.46.163.26] verified) by logan.com (CommuniGate Pro SMTP 6.0.5) with ESMTPS id 6412366 for lml@lancaironline.net; Sat, 10 Aug 2013 11:30:54 -0400 Received-SPF: pass receiver=logan.com; client-ip=207.46.163.26; envelope-from=rpastusek@htii.com Received: from mail172-co9-R.bigfish.com (10.236.132.243) by CO9EHSOBE017.bigfish.com (10.236.130.80) with Microsoft SMTP Server id 14.1.225.22; Sat, 10 Aug 2013 15:30:19 +0000 Received: from mail172-co9 (localhost [127.0.0.1]) by mail172-co9-R.bigfish.com (Postfix) with ESMTP id 4D315AC02D9 for ; Sat, 10 Aug 2013 15:30:19 +0000 (UTC) X-Forefront-Antispam-Report: CIP:157.56.245.5;KIP:(null);UIP:(null);IPV:NLI;H:CH1PRD0710HT005.namprd07.prod.outlook.com;RD:none;EFVD:NLI X-SpamScore: -2 X-BigFish: PS-2(zz9371Ic85fh4015Izz1f42h208ch1ee6h1de0h1fdah2073h1202h1e76h1d1ah1d2ah1fc6hzz8275ch1d7338h1de098h17326ah18c673h1de096h1954cbh8275bh8275dh1de097hz2fh2a8h668h839hd25hf0ah1288h12a5h12bdh137ah1441h1504h1537h153bh15d0h162dh1631h1758h18e1h1946h19b5h19ceh1ad9h1b0ah1bceh1d07h1d0ch1d2eh1d3fh1de9h1dfeh1dffh1e1dh1fe8h1155h) Received-SPF: pass (mail172-co9: domain of htii.com designates 157.56.245.5 as permitted sender) client-ip=157.56.245.5; envelope-from=rpastusek@htii.com; helo=CH1PRD0710HT005.namprd07.prod.outlook.com ;.outlook.com ; Received: from mail172-co9 (localhost.localdomain [127.0.0.1]) by mail172-co9 (MessageSwitch) id 1376148616831290_10093; Sat, 10 Aug 2013 15:30:16 +0000 (UTC) Received: from CO9EHSMHS032.bigfish.com (unknown [10.236.132.232]) by mail172-co9.bigfish.com (Postfix) with ESMTP id BCE369C004C for ; Sat, 10 Aug 2013 15:30:16 +0000 (UTC) Received: from CH1PRD0710HT005.namprd07.prod.outlook.com (157.56.245.5) by CO9EHSMHS032.bigfish.com (10.236.130.42) with Microsoft SMTP Server (TLS) id 14.16.227.3; Sat, 10 Aug 2013 15:30:16 +0000 Received: from CH1PRD0710MB367.namprd07.prod.outlook.com ([169.254.11.29]) by CH1PRD0710HT005.namprd07.prod.outlook.com ([10.255.152.40]) with mapi id 14.16.0341.000; Sat, 10 Aug 2013 15:30:15 +0000 From: Robert R Pastusek To: Lancair Mailing List Subject: RE: [LML] Adding AOA to a Legacy? Thread-Topic: [LML] Adding AOA to a Legacy? Thread-Index: AQHOlX5nMWeP0as7ZkSENZIrQGMK7ZmOZGsg Date: Sat, 10 Aug 2013 15:30:15 +0000 Message-ID: <41361035E6613244A377D5AC3BF5EFDD66898A33@CH1PRD0710MB367.namprd07.prod.outlook.com> References: In-Reply-To: Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [96.241.131.4] Content-Type: multipart/alternative; boundary="_000_41361035E6613244A377D5AC3BF5EFDD66898A33CH1PRD0710MB367_" MIME-Version: 1.0 Return-Path: rpastusek@htii.com X-OriginatorOrg: htii.com X-FOPE-CONNECTOR: Id%0$Dn%*$RO%0$TLS%0$FQDN%$TlsDn% --_000_41361035E6613244A377D5AC3BF5EFDD66898A33CH1PRD0710MB367_ Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Eric, I am using your question to answer two additional queries about AOA systems= that I received during Oshkosh. First of all, AOA systems, when properly installed and calibrated, are a gr= eat stall warning system--better than the traditional vanes and airspeed-on= ly based systems. The newer systems available are reported to be both relia= ble and accurate. AOA was a "required equipment" item in the USAF aircraft = that I flew before retirement, and I became a devotee long ago. LOBO, the F= AA and the NTSB have all recently looked at the available accident data and= have stated that a calibrated AOA system could have prevented at least som= e of the loss-of-control accidents now on our books. LOBO has not endorsed any specific system, but strongly believes that any p= roperly-installed system, to include stall strips, are a significant additi= on to the airspeed indicator for stall warning and avoidance. This is parti= cularly true for our Lancairs that don't change control "feel" forces over = rather large airspeed changes, and exhibit little to no warning of an incip= ient stall without some type of AOA sensing/warning. I installed the Advanced Flight Systems AOA Pro in my IV-P when I built it,= and have been extremely pleased with its faultless performance over the pa= st 5 years. I can highly recommend this system, and the people behind it, f= rom Jim Frantz who originally developed it, to Rob Hickman and the folks th= at manage the company today. http://www.advanced-flight-systems.com (503) = 263-0037. My recommendation comes from a well satisfied customer; but I have no exper= ience with any of the other AOA systems available for GA aircraft. I have a= lso never had it "alert" in the air except during intentional maneuvering t= o test the system, and just before touchdown. That's one of the reasons I l= ike it a lot...I am pretty confident that it will warn me if I get too slow= , but it's never given a false alarm...which would concern my ever-vigilant= co-pilot/wife. I am sure there are other good AOA systems available, but this one is top o= f the line as far as I am concerned. Thanks, BOB From: Lancair Mailing List [mailto:lml@lancaironline.net] On Behalf Of Erik= Larson Sent: Saturday, August 10, 2013 12:02 AM To: lml@lancaironline.net Subject: [LML] Adding AOA to a Legacy? I am considering adding AOA to my Legacy and was wondering if I can get som= e feedback from anyone who has done this. Is there any consensus out there as to what system is preferred, from a per= formance standpoint and secondarily, ease of installation. I was looking at the Alpha Systems DSTR-AOA-9000EK which just happens to be= named Legacy. Any experience about this or any other systems would be greatly appreciated= ! Thanks, Erik Larson Legacy N74FX --_000_41361035E6613244A377D5AC3BF5EFDD66898A33CH1PRD0710MB367_ Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

Eric,

 

I am using your question to answer two additional q= ueries about AOA systems that I received during Oshkosh.<= /p>

 

First of all, AOA systems, when properly installed = and calibrated, are a great stall warning system--better than the traditional vanes and airspeed-only based systems. The newer systems avail= able are reported to be both reliable and accurate. AOA was a “requir= ed equipment” item in the USAF aircraft that I flew before retirement= , and I became a devotee long ago. LOBO, the FAA and the NTSB have all recently looked at the available accident data a= nd have stated that a calibrated AOA system could have prevented at least s= ome of the loss-of-control accidents now on our books.

 

LOBO has not endorsed any specific system, but stro= ngly believes that any properly-installed system, to include stall strips, are a significant addition to the airspeed indicator for stall war= ning and avoidance. This is particularly true for our Lancairs that don’t change control R= 20;feel” forces over rather large airspeed changes, and exhibit littl= e to no warning of an incipient stall without some type of AOA sensing/warn= ing.

 

I installed the Advanced Flight Systems AOA Pro in = my IV-P when I built it, and have been extremely pleased with its faultless performance over the past 5 years. I can highly recommend this s= ystem, and the people behind it, from Jim Frantz who originally developed i= t, to Rob Hickman and the folks that manage the company today. http://www.advanced-flig= ht-systems.com  (503) 263-0037.

 

My recommendation comes from a well satisfied custo= mer; but I have no experience with any of the other AOA systems available for GA aircraft. I have also never had it “alert” in the air e= xcept during intentional maneuvering to test the system, and just before to= uchdown. That’s one of the reasons I like it a lot…I am pretty = confident that it will warn me if I get too slow, but it’s never given a false alarm…which would concern my ever-vigilant co-pi= lot/wife.

 

I am sure there are other good AOA systems availabl= e, but this one is top of the line as far as I am concerned.

 

Thanks,

BOB

 

 

From: Lancair Mailing List [mailto:lml@lancaironline.net] On Behalf Of Erik Larso= n
Sent: Saturday, August 10, 2013 12:02 AM
To: lml@lancaironline.net
Subject: [LML] Adding AOA to a Legacy?

 

 

I am considering adding AOA t= o my Legacy and was wondering if I can get some feedback from anyone who ha= s done this.

 

Is there any consensus out th= ere as to what system is preferred, from a performance standpoint and secon= darily, ease of installation.

 

I was looking at the Alpha Sy= stems DSTR-AOA-9000EK which just happens to be named Legacy.  

 

Any experience about this or = any other systems would be greatly appreciated!

 

Thanks,

 

Erik Larson=

 

Legacy

N74FX

 

 

 

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