X-Virus-Scanned: clean according to Sophos on Logan.com From: "Steven W. Boese" Received: from [157.56.111.105] (HELO na01-bn1-obe.outbound.protection.outlook.com) by logan.com (CommuniGate Pro SMTP 6.1.8) with ESMTPS id 8340877 for flyrotary@lancaironline.net; Wed, 20 Jan 2016 13:32:19 -0500 Received-SPF: none receiver=logan.com; client-ip=157.56.111.105; envelope-from=SBoese@uwyo.edu DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=uwy.onmicrosoft.com; s=selector1-uwyo-edu; h=From:To:Date:Subject:Message-ID:Content-Type:MIME-Version; bh=QEqQBQKYEUqIKqEwMCfXbbrDDM8Ja/306HodaeHfR5E=; b=mKtvoJsHwMKuyypnjRBmnta7zJ/VOyAfZs49tF+Ibg/4vFwI7js+hXlKrvpXTmwfBN45l/vkd7+OKK+9XyDAtjreqSwX2F0jU3E4So4aRDOAXLBFkfbGAlrYyg1Qdg3ffXGMsAO+QpiKmV8I6bLUKAsZ9L4kZ8XIvXTJumh+siU= Received: from BN3PR0501MB1138.namprd05.prod.outlook.com (10.160.113.148) by BN3PR0501MB1139.namprd05.prod.outlook.com (10.160.113.149) with Microsoft SMTP Server (TLS) id 15.1.365.19; Wed, 20 Jan 2016 18:31:58 +0000 Received: from BN3PR0501MB1138.namprd05.prod.outlook.com ([10.160.113.148]) by BN3PR0501MB1138.namprd05.prod.outlook.com ([10.160.113.148]) with mapi id 15.01.0365.024; Wed, 20 Jan 2016 18:31:58 +0000 To: Rotary motors in aircraft Subject: Re: [FlyRotary] Re: What do you think may be happening? Thread-Topic: [FlyRotary] Re: What do you think may be happening? Thread-Index: AQHRU665eK2QnNUhBU64MabskFYpm58Et7yg Date: Wed, 20 Jan 2016 18:31:57 +0000 Message-ID: References: In-Reply-To: Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: authentication-results: spf=none (sender IP is ) smtp.mailfrom=SBoese@uwyo.edu; x-originating-ip: [69.146.103.188] x-microsoft-exchange-diagnostics: 1;BN3PR0501MB1139;5:YLqf4NcUeAXU3hhSaSteSuOdVnccOUuiFWIPpblMIKoSRaCUlIKRCK8aO21oywUM16pZRDnqptZvQjpG4HjGY+s3jk3YYePTawXcrGT3VFrUv2WdKwMtzIgjjGPNHl+WErUQifRf8Z6IZy8F5n5qEw==;24:DzAhYpplFaeA00veEQGwrpsZEb9QO1Lhqh4Q8OhB9Zvg4r8DbCCQAbDw/UoiSc/ydkr1m+oVTUSqBuVgjbmHuzMCjIz6LE5tgtKPenu9olM= x-microsoft-antispam: UriScan:;BCL:0;PCL:0;RULEID:;SRVR:BN3PR0501MB1139; x-ms-office365-filtering-correlation-id: b17b55ae-5ed8-4d39-92ce-08d321c7fb1a x-microsoft-antispam-prvs: x-exchange-antispam-report-test: UriScan:; x-exchange-antispam-report-cfa-test: BCL:0;PCL:0;RULEID:(601004)(2401047)(5005006)(520078)(8121501046)(10201501046)(3002001);SRVR:BN3PR0501MB1139;BCL:0;PCL:0;RULEID:;SRVR:BN3PR0501MB1139; x-forefront-prvs: 0827D7ACB9 x-forefront-antispam-report: SFV:NSPM;SFS:(10019020)(6009001)(377454003)(199003)(85664002)(76104003)(189002)(10400500002)(92566002)(6116002)(3846002)(101416001)(75432002)(97736004)(88552002)(89122001)(19627405001)(102836003)(16236675004)(1096002)(5008740100001)(81156007)(76576001)(1220700001)(80792005)(2900100001)(586003)(19625215002)(33656002)(2950100001)(19580405001)(5003600100002)(450100001)(40100003)(77096005)(87936001)(90282001)(86362001)(74316001)(5004730100002)(76176999)(19580395003)(5002640100001)(189998001)(54356999)(106356001)(105586002)(50986999)(106116001)(5001960100002)(122556002)(99286002)(107886002)(11100500001)(66066001)(110136002)(2906002);DIR:OUT;SFP:1102;SCL:1;SRVR:BN3PR0501MB1139;H:BN3PR0501MB1138.namprd05.prod.outlook.com;FPR:;SPF:None;PTR:InfoNoRecords;A:1;MX:1;LANG:en; received-spf: None (protection.outlook.com: uwyo.edu does not designate permitted sender hosts) spamdiagnosticoutput: 1:23 spamdiagnosticmetadata: NSPM Content-Type: multipart/alternative; boundary="_000_BN3PR0501MB1138DB296B627AB63D640EEFB9C20BN3PR0501MB1138_" MIME-Version: 1.0 X-OriginatorOrg: uwyo.edu X-MS-Exchange-CrossTenant-originalarrivaltime: 20 Jan 2016 18:31:57.9403 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: f9cdd7ad-825d-4601-8e9c-a325e02d52da X-MS-Exchange-Transport-CrossTenantHeadersStamped: BN3PR0501MB1139 --_000_BN3PR0501MB1138DB296B627AB63D640EEFB9C20BN3PR0501MB1138_ Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Bill, I have tested the injector disable function with my EC2's. With the power = interrupted to the primary injectors and the cold switch on, the engine run= s on the secondary injectors at MAP below the staging threshold. I don't k= now the details of how the controller treats the cold switch, but it is pos= sible that with the cold switch on, the controller increases the fuel flow = by using both the primary and secondary injectors at MAP below the staging = threshold, and doubles the injector pulse width at MAP above the staging th= reshold. I remember investigating this when first using the controllers bu= t don't remember the exact details. My backup system does work at low MAP. Steve ________________________________ From: Rotary motors in aircraft on behalf of = Bill Bradburry Sent: Wednesday, January 20, 2016 11:15 AM To: Rotary motors in aircraft Subject: [FlyRotary] Re: What do you think may be happening? Bobby, I am sorry I was not clear and the reason was that I was not clear myself. The injector disable switches are for in case you lose an injector in fligh= t and the engine starts to run on only one rotor. You can disable either o= f the primary or secondary injectors which will take the failed injector ou= t of the circuit. Tracy says you should test this to make sure that it works. That is where = my question came from. You can only test the disable switches when the eng= ine is not staged. If the engine is staged, and you turn off the primary i= njectors, the engine will die because the secondary injectors are not runni= ng, and if you turn off the secondary injectors, the engine will run rich b= ecause you turned on the cold start but the secondaries were not running an= yway. I am not sure what would happen if you lost a primary injector in flight, d= isabled the primary injectors, then reduced power to the staging point in o= rder to land??? I suspect all would get quiet! :>( Bill ________________________________ From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] Sent: Wednesday, January 20, 2016 11:35 AM To: Rotary motors in aircraft Subject: [FlyRotary] Re: What do you think may be happening? Bill, I'm not sure I understand the question. If your referring to my "center of= f switch position" it's not used in flight. Intentionally anyway :) It's us= ed to shut down the engine. Primary injector switch of course. Same switch = used for both primary and secondary injectors. Bobby From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] Sent: Wednesday, January 20, 2016 10:55 AM To: Rotary motors in aircraft Subject: [FlyRotary] Re: What do you think may be happening? Changing the subject a minute...How do you disable the secondary's when the= engine is staged?? They are not running anyway??? Bill --_000_BN3PR0501MB1138DB296B627AB63D640EEFB9C20BN3PR0501MB1138_ Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable

Bill,


I have tested the injector disable function with my EC2's.  With th= e power interrupted to the primary injectors and the cold switch on, the en= gine runs on the secondary injectors at MAP below the staging threshold.&nb= sp; I don't know the details of how the controller treats the cold switch, but it is possible that with the cold switch on, t= he controller increases the fuel flow by using both the primary and seconda= ry injectors at MAP below the staging threshold, and doubles the injector p= ulse width at MAP above the staging threshold.  I remember investigating this when first using the contro= llers but don't remember the exact details.  My backup system doe= s work at low MAP.


Steve



From: Rotary motors in ai= rcraft <flyrotary@lancaironline.net> on behalf of Bill Bradburry <= flyrotary@lancaironline.net>
Sent: Wednesday, January 20, 2016 11:15 AM
To: Rotary motors in aircraft
Subject: [FlyRotary] Re: What do you think may be happening?
 

Bobby,

I am sorry I was not clear and the re= ason was that I was not clear myself.

 

The injector disable switches are for= in case you lose an injector in flight and the engine starts to run on onl= y one rotor.  You can disable either of the primary or secondary injectors which will take the failed injector out= of the circuit.

Tracy says you should test this to make sure that it works.  That is where my question came from.  = You can only test the disable switches when the engine is not staged. = If the engine is staged, and you turn off the primary injectors, the engin= e will die because the secondary injectors are not running, and if you turn off the secondary injectors, the engine will = run rich because you turned on the cold start but the secondaries were not = running anyway.

 

I am not sure what would happen if yo= u lost a primary injector in flight, disabled the primary injectors, then r= educed power to the staging point in order to land???  I suspect all would get quiet!  :>(=

 

Bill

 

From: Rotar= y motors in aircraft [mailto:flyrotary@lancaironline.net]
Sent: Wednesday, January 2= 0, 2016 11:35 AM
To: Rotary motors in aircr= aft
Subject: [FlyRotary] Re: W= hat do you think may be happening?

=  

Bill,

 

I’m not sure= I understand the question.  If your referring to my “center off= switch position” it’s not used in flight. Intentionally anyway J= It’s used to shut down the engine. Primary injector switch of course= . Same switch used for both primary and secondary injectors.

 

Bobby

 

From: Rotar= y motors in aircraft [mailto:flyrotary@lancaironline.net]
Sent: Wednesday, January 2= 0, 2016 10:55 AM
To: Rotary motors in aircr= aft
Subject: [FlyRotary] Re: W= hat do you think may be happening?

=  

 

 

Changing the subject a minute…H= ow do you disable the secondary’s when the engine is staged??  T= hey are not running anyway???

 

Bill

=  

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