X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from fed1rmmtao102.cox.net ([68.230.241.44] verified) by logan.com (CommuniGate Pro SMTP 5.3.4) with ESMTP id 4168435 for flyrotary@lancaironline.net; Tue, 16 Mar 2010 22:22:23 -0400 Received-SPF: none receiver=logan.com; client-ip=68.230.241.44; envelope-from=rv-4mike@cox.net Received: from fed1rmimpo03.cox.net ([70.169.32.75]) by fed1rmmtao102.cox.net (InterMail vM.8.00.01.00 201-2244-105-20090324) with ESMTP id <20100317022147.KKT8308.fed1rmmtao102.cox.net@fed1rmimpo03.cox.net> for ; Tue, 16 Mar 2010 22:21:47 -0400 Received: from willsPC ([68.105.86.80]) by fed1rmimpo03.cox.net with bizsmtp id u2Mn1d00C1k005Q042Mnfe; Tue, 16 Mar 2010 22:21:47 -0400 X-VR-Score: 0.00 X-Authority-Analysis: v=1.1 cv=yjuDh3Ma92GrVaJxYD7gfORM7ilP1Knqouyx6SOEBcg= c=1 sm=1 a=34fRRWa_nT4A:10 a=XruvlouZCDbGUgEaRUiNZQ==:17 a=ayC55rCoAAAA:8 a=arxwEM4EAAAA:8 a=QdXCYpuVAAAA:8 a=7g1VtSJxAAAA:8 a=ekHE3smAAAAA:20 a=UretUmmEAAAA:8 a=Ia-xEzejAAAA:8 a=3oc9M9_CAAAA:8 a=nUuTZ29dAAAA:8 a=K51g8U-SU-DqJGy4CKoA:9 a=E9o_8wMAyQkKmqthhqEA:7 a=OtjFQ3HadznkHU1LARwJoGSwXccA:4 a=wPNLvfGTeEIA:10 a=1vhyWl4Y8LcA:10 a=EzXvWhQp4_cA:10 a=U8Ie8EnqySEA:10 a=m5Tc9BndZRU9fdp0:21 a=z2r_PnFhZgvhWwph:21 a=kviXuzpPAAAA:8 a=-aqYEzYxF4CgI4p-cZkA:9 a=fFuzB6W4Un1Y-1bn2LYA:7 a=K42otJ-zKQdPbxNAgAS-5ohbF3EA:4 a=4vB-4DCPJfMA:10 a=jm7GoPpFv0rflx3q:21 a=woJPLW7feTwJ6ycB:21 a=XruvlouZCDbGUgEaRUiNZQ==:117 X-CM-Score: 0.00 Message-ID: From: "Mike Wills" To: "Rotary motors in aircraft" References: In-Reply-To: Subject: Re: [FlyRotary] Injector Select Switch [FlyRotary] Re: Civil Discourse was : [FlyRotary] Re: Ut-Oh... Date: Tue, 16 Mar 2010 19:21:46 -0700 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_009C_01CAC53D.EB106E80" X-Priority: 3 X-MSMail-Priority: Normal Importance: Normal X-Mailer: Microsoft Windows Live Mail 14.0.8089.726 X-MimeOLE: Produced By Microsoft MimeOLE V14.0.8089.726 This is a multi-part message in MIME format. ------=_NextPart_000_009C_01CAC53D.EB106E80 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Ed, 1) Have you ever had an injector failure that required this? 2) There were a number of occasions during initial debug when it was = helpful to disable injector pairs. It was easy enough to do this by = pulling power where they were plugged into the essential bus. Not as = convenient as flipping a switch, but I don't anticipate having to mess = with it ever again. 3) Are your supply lines to your injectors fused? If not, why not? If = they do short in flight how do you know to turn off the switches? 4) I turn off the fuel pump to kill the engine. I suppose this does = leave a possibility of a little fuel in the chamber? Not sure there is = any reason for concern? Mike Wills=20 From: Ed Anderson=20 Sent: Tuesday, March 16, 2010 6:30 AM To: Rotary motors in aircraft=20 Subject: [FlyRotary] Injector Select Switch [FlyRotary] Re: Civil = Discourse was : [FlyRotary] Re: Ut-Oh... I also find the "Injector Select" switches useful for several purposes, = Rino.=20 =20 1. If a problem with one injector of a pair occurs, I can turn that = pair off and fly home on the remaining pair. 2. They are great for trouble shooting injector problems by permitting = you to choose which pair will be on without question.=20 3. In the highly unlikely (but possible) event that a power wire to a = pair should short to ground, you can turn the power off to that pair. =20 4. I also use them to turn off the engine - that ensures no residue fuel = in the housings. =20 But, if not wired correctly they can cause a new installation some = puzzling problems {:>) and they do add another component and we know = components can fail - although if sized properly for the correct current = and installing quality switches and wire correct the failure in one will = not take you down and the likelihood of both failing at the same time is = rather remote. =20 But, once again, you can certainly fly without them - I just find them = very useful. =20 My 0.02 =20 Ed=20 =20 Ed Anderson Rv-6A N494BW Rotary Powered Matthews, NC eanderson@carolina.rr.com http://www.andersonee.com http://www.dmack.net/mazda/index.html http://www.flyrotary.com/ http://members.cox.net/rogersda/rotary/configs.htm#N494BW http://www.rotaryaviation.com/Rotorhead%20Truth.htm -------------------------------------------------------------------------= ------- From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On = Behalf Of Rino Sent: Tuesday, March 16, 2010 8:05 AM To: Rotary motors in aircraft Subject: [FlyRotary] Re: Civil Discourse was : [FlyRotary] Re: Ut-Oh... =20 I find the "injector failure Switches" convenient during the warmup to = test the operation of the injectors just like the primary and seconday = plugs test. =20 Rino Lacombe =20 ----- Original Message -----=20 From: Mike Wills=20 To: Rotary motors in aircraft=20 Sent: Tuesday, March 16, 2010 1:23 AM Subject: [FlyRotary] Re: Civil Discourse was : [FlyRotary] Re: = Ut-Oh... =20 I chose not to implement the "injector failure switches". I don't know = if there are any statistics on it, but I suspect injector failure is an = extremely rare occurrence. On the other hand if one did fail I'd rather = fly the plane and troubleshoot the problem after I'm on the ground. But = that's part of the advantage in going the Experimental route - build it = the way you want it. =20 Mike Wills=20 =20 From: Bktrub@aol.com=20 Sent: Monday, March 15, 2010 8:47 AM To: Rotary motors in aircraft=20 Subject: [FlyRotary] Re: Civil Discourse was : [FlyRotary] Re: = Ut-Oh... =20 In the event of a primary or secondary injector failure, the affected = injector set can be switched off and the cold start switch used to = richen up the remaining injectors. This as per Tracy's instructions. I = haven't tried this, and hope I never have to in the heat of battle, but = there it is.=20 =20 Brian Trubee __________ Information from ESET NOD32 Antivirus, version of virus = signature database 3267 (20080714) __________ The message was checked by ESET NOD32 Antivirus. http://www.eset.com ------=_NextPart_000_009C_01CAC53D.EB106E80 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
Ed,
 
1) Have you ever had an injector failure that = required=20 this?
2) There were a number of occasions during = initial debug=20 when it was helpful to disable injector pairs. It was easy enough to do = this by=20 pulling power where they were plugged into the essential bus. Not as = convenient=20 as flipping a switch, but I don=92t anticipate having to mess with it = ever=20 again.
3) Are your supply lines to your injectors=20 fused? If not, why not? If they do short in flight how do you know = to turn=20 off the switches?
4) I turn off the fuel pump to kill the = engine. I=20 suppose this does leave a possibility of a little fuel in the chamber? = Not sure=20 there is any reason for concern?
 
Mike Wills 

Sent: Tuesday, March 16, 2010 6:30 AM
Subject: [FlyRotary] Injector Select Switch [FlyRotary] Re: = Civil=20 Discourse was : [FlyRotary] Re: Ut-Oh...

I also =  find the=20 =93Injector Select=94 switches useful for several purposes, Rino.=20

 

1.  If a = problem=20 with one injector of a pair occurs, I can turn that pair off and fly = home on the=20 remaining pair.

2.  They = are great=20 for trouble shooting injector problems by permitting you to choose which = pair=20 will be on without question.

3. In the = highly=20 unlikely (but possible) event that a power wire to a pair should short = to=20 ground, you can turn the power off to that pair. =20

4. I also use = them to=20 turn off the engine =96 that ensures no residue fuel in the=20 housings.

 

 But, if = not wired=20 correctly they can cause a new installation some puzzling problems = {:>) and=20 they do add another component and we know components can fail =96 = although if=20 sized properly for the correct current and installing quality switches = and wire=20 correct the failure in one will not take you down and the likelihood of = both=20 failing at the same time is rather remote.

 

But, once = again, you=20 can certainly fly without them =96 I just find them very=20 useful.

 

My=20 0.02

 

Ed=20

 

Ed=20 Anderson

Rv-6A N494BW=20 Rotary Powered

Matthews,=20 NC

eanderson@carolina.rr.com

http://www.andersonee.com

http://www.dmack.net/mazda/index.html

http://www.flyrotary.com/

http://members.cox.net/rogersda/rotary/configs.htm#N494BW

http://www.r= otaryaviation.com/Rotorhead%20Truth.htm

From:=20 Rotary motors in aircraft=20 [mailto:flyrotary@lancaironline.net] On=20 Behalf Of Rino
Sent:=20 Tuesday, March 16, 2010 8:05 AM
To: Rotary motors=20 in aircraft
Subject: [FlyRotary] Re: Civil = Discourse=20 was : [FlyRotary] Re: Ut-Oh...

 

I find the = "injector=20 failure Switches" convenient during the warmup to test the operation of = the=20 injectors just like the primary and seconday plugs=20 test.

 

Rino=20 Lacombe

 

----- = Original=20 Message -----

From: Mike = Wills=20

To: Rotary motors in = aircraft=20

Sent: Tuesday, = March 16,=20 2010 1:23 AM

Subject: = [FlyRotary] Re:=20 Civil Discourse was : [FlyRotary] Re:=20 Ut-Oh...

 

I chose = not to=20 implement the "injector failure switches". I don=92t know if there are = any=20 statistics on it, but I suspect injector failure is an extremely=20 rare occurrence. On the other hand if one did fail I'd rather fly = the=20 plane and troubleshoot the problem after I'm on the ground. But = that=92s=20 part of the advantage in going the Experimental route - build it the = way you=20 want it.

 

Mike=20 Wills 

 

From: Bktrub@aol.com=20

Sent: Monday, = March 15,=20 2010 8:47 AM

To: Rotary motors in = aircraft=20

Subject: = [FlyRotary] Re:=20 Civil Discourse was : [FlyRotary] Re:=20 Ut-Oh...

 

In the = event of a=20 primary or secondary injector failure, the affected injector set can = be=20 switched off and the cold start switch used to richen up the remaining = injectors. This as per Tracy's instructions. I haven't = tried this,=20 and hope I never have to in the heat of battle, but there it is.=20

 

Brian=20 Trubee



__________=20 Information from ESET NOD32 Antivirus, version of virus signature = database 3267=20 (20080714) __________

The message was checked by ESET NOD32=20 Antivirus.

http://www.eset.com

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