X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from qw-out-2122.google.com ([74.125.92.25] verified) by logan.com (CommuniGate Pro SMTP 5.3.4) with ESMTP id 4165419 for flyrotary@lancaironline.net; Sun, 14 Mar 2010 11:40:34 -0400 Received-SPF: pass receiver=logan.com; client-ip=74.125.92.25; envelope-from=rwstracy@gmail.com Received: by qw-out-2122.google.com with SMTP id 9so683013qwb.25 for ; Sun, 14 Mar 2010 08:39:58 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:sender:received:in-reply-to :references:date:x-google-sender-auth:message-id:subject:from:to :content-type; bh=DXUPms0clpVRaLgdftihZSx+G+7l+vu3nijei/gbLKg=; b=vlVLKyjzsFE3wg6DeczlMtSVpDy84pCIrnDCDDhJ2LUefffeLO5X7uN2yWEkDHc5Tb FFz/JnN/wCdgGx+qOIShLnliUOsl4DR8kTabroxX/NBeHpx5bkArN6yRxDHuC+yivvck h7b7RCpZUP4G8o+u4/BWjyNetrOy+r8noQQ8Q= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:sender:in-reply-to:references:date :x-google-sender-auth:message-id:subject:from:to:content-type; b=wQVLHjSByfIbg6oNITR976+afLYfKA5Q/X9nNSaEU1bmCxPOC8E8oaj7Y6xewqyBr1 Mk6SsfyMkQCd+HkBeQRlpozGIi/Otmw9qxKBzNhuZ2yvM1U6D97LIAxxQyqnGYb7TkLJ OGzbxfUC+Guf6ZFNBEroC3hzFWE3KcuVJVzGU= MIME-Version: 1.0 Sender: rwstracy@gmail.com Received: by 10.224.26.73 with SMTP id d9mr1186132qac.317.1268581197084; Sun, 14 Mar 2010 08:39:57 -0700 (PDT) In-Reply-To: References: Date: Sun, 14 Mar 2010 11:39:57 -0400 X-Google-Sender-Auth: 4445d3edd9ec1e17 Message-ID: <1b4b137c1003140839s7b0639c1g729245f83f115c69@mail.gmail.com> Subject: Re: [FlyRotary] Re: Ut-Oh... From: Tracy Crook To: Rotary motors in aircraft Content-Type: multipart/alternative; boundary=00c09f9235dd9ef84f0481c49347 --00c09f9235dd9ef84f0481c49347 Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: quoted-printable Thanks David, Both you and Jon are aviators and I knew you guys understood the score o= n this stuff. It's mostly the non-flyers that think that every conceivable failure / error mode can and must be eliminated. Try yes, but it will never be 100%. I'm too embarassed to say how many times I've inadvertantly turned off my fuel pump switch. Must move it soon. BTW, I think it is a tribute to the community of experimental builders and pilots that so many power out landings end as gracefully as the ones that have been discussed on this list. Don't know the official stats but my impression is that only a small fraction of typical GA power out incidents end this well. Tracy Crook On Sun, Mar 14, 2010 at 11:04 AM, David Leonard wrote= : > Tracy, > > I definately do not consider this a short coming of the EC2. Though, I d= o > think that I will cut down the switch to help prevent a recurrence. Thou= gh > I don't think I will ever neglect to check that if something should happe= n > in the future... I wonder what else is lurking out there. > > -- > David Leonard > > Turbo Rotary RV-6 N4VY > http://N4VY.RotaryRoster.net > http://RotaryRoster.net > > > On Sun, Mar 14, 2010 at 7:10 AM, Tracy Crook wr= ote: > >> I know Dave or Jon wouldn't phrase it this way but I've already received= a >> number of messages from others about these two recent in-flight power >> failures due to EC2 issues. >> >> Jon's was due to a loose mounting nut inside the EC2 that shorted the >> main power input filter to ground and burned open both foils from the 2 >> power input pins. How lucky was that. >> >> Anyway, at the risk of sounding defensive, I thought I'd share my >> response to one of them that suggested changing the EC2 case to an exter= nal >> mount of some sort. I'm sure there are scores of messages on the way ur= ging >> me to place switch guards on the cold start switch : ) >> >> REPLY >> >> Hello ---------- >> I'm aware of the failure and have the unit here for repair. >> >> Like a thousand other critical details in building an aircraft, it is >> not possible to explicitly spell out all of them. The precise method an= d >> hardware used to accomplish it are not part of the EC2 or the instructio= ns. >> The first paragraph of the installation guide does say the following: >> >> "Needless to say, the quality of installation is just as important as th= e >> quality of the hardware itself. It is not practical to include a course >> on proper electrical wiring practices in these installation instructions= , >> but it is imperative that proper wiring techniques be employed during th= e >> installation of the EC2." >> >> It was my thought that avoiding the presence of loose metal objects insi= de >> an electrical device that your life depends on fell into the category of >> "needless to say". >> >> Nevertheless, a cautionary note might well be worth adding. As also >> stated in the first paragraph of the instructions, >> " I want your project to succeed and your life to be a long and happy >> one. " >> >> All the best, >> Tracy Crook, RWS >> >> >> >> On Sun, Mar 14, 2010 at 2:34 AM, David Leonard wrot= e: >> >>> Boy, word sure gets around these days.. >>> >>> short answer... inadvertently hit cold start switch while messing with >>> GPS and flying at 1000' AGL.. not enough time to troubleshoot... had = to >>> fly plane and find a place to land. >>> >>> Both happy and appalled when the I realized the problem 2 minutes after >>> the commotion stopped. The tower must have been plain appalled when I = took >>> off again later this afternoon. >>> >>> -- >>> David Leonard >>> >>> Turbo Rotary RV-6 N4VY >>> http://N4VY.RotaryRoster.net >>> http://RotaryRoster.net >>> >>> >>> On Sat, Mar 13, 2010 at 5:31 PM, Dave wrote: >>> >>>> Bill Monroe wrote: >>>> >>>>> >>>>> Dave=92s going to have an interesting story to tell=85 >>>>> >>>>> http://www.cbs8.com/global/story.asp?s=3D12136229 >>>>> >>>>> Glad he landed safe.. >>>> >>>> -- >>>> Homepage: http://www.flyrotary.com/ >>>> Archive and UnSub: >>>> http://mail.lancaironline.net:81/lists/flyrotary/List.html >>>> >>> >>> >>> >> > > > --00c09f9235dd9ef84f0481c49347 Content-Type: text/html; charset=windows-1252 Content-Transfer-Encoding: quoted-printable Thanks David,
=A0=A0 Both you and Jon are aviators and I knew you guys u= nderstood the score on this stuff.=A0 It's mostly the non-flyers that t= hink that every conceivable failure / error mode can and must be eliminated= .=A0 Try yes,=A0 but it will never be 100%.=A0 I'm too embarassed to sa= y how many times I've inadvertantly turned off my fuel pump switch.=A0 = Must move it soon.

BTW, I think it is a tribute to the community of experimental builders = and pilots that so many power out landings end as gracefully as the ones th= at have been discussed on this list.=A0 Don't know the official stats b= ut my impression is that only a small fraction of typical GA power out inci= dents end this well.

Tracy Crook

On Sun, Mar 14, 2010 at 11:04 AM, David Leonard = <wdleonard@gmai= l.com> wrote:
Tracy,
=A0
I definately do not consider this a short coming of the EC2.=A0 Though= , I do think that I will cut down the switch to help prevent a recurrence.= =A0 Though I don't think I will ever neglect to check that if something= should happen in the future...=A0 I wonder what else is lurking out there.=
=A0
--
David Leonard

Turbo Rotary RV-6 N4VY
http://N4VY.RotaryRoster.net=
http://RotaryRoster.net


On Sun, Mar 14, 2010 at 7:10 AM, Tracy Cro= ok <tracy@rotaryaviation.com> wrote:
I know Dave or Jo= n wouldn't phrase it this way but I've already received a number of= messages from others about these two recent in-flight power failures due t= o EC2 issues.

=A0Jon's was due to a loose mounting nut inside the EC2 that shorte= d the main power input filter to ground and burned open both foils from the= 2 power input pins.=A0 How lucky was that.

=A0 Anyway, at the risk= of sounding defensive, I thought I'd share my response to one of them = that suggested changing the EC2 case to an external mount of some sort.=A0 = I'm sure there are scores of messages on the way urging me to place swi= tch guards on the cold start switch=A0 : )

REPLY

Hello ----------
=A0 I'm aware of the failure and h= ave the unit here for repair.

=A0=A0 Like a thousand other critical = details in building an aircraft, it is not possible to explicitly spell out= all of them.=A0 The precise method and hardware used to accomplish it are = not part of the EC2 or the instructions. The first paragraph of the install= ation guide does say the following:

"Ne= edless to say, the quality of installation is just as important as the qual= ity of the hardware itself.=A0 It is not practical to include = a course on proper electrical wiring practices in these installation instru= ctions, but it is imperative that proper wiring techniques be employed duri= ng the installation of the EC2."

It was my thought that avoiding the presence of loose metal objects ins= ide an electrical device that your life depends on fell into the category o= f=A0 "needless to say".

Nevertheless, a cautionary note mi= ght well be worth adding.=A0=A0 As also stated in the first paragraph of th= e instructions,
" I want your project to succeed and your life to be a long and= happy one. "

All the best,<= br>Tracy Crook, =A0=A0 RWS<= br>=A0
=20


On Sun, Mar 14, 2010 at 2:34 AM, David Leonard <= span dir=3D"ltr"><wdleonard@gmail.com> wrote:
Boy,=A0 word sure= gets around these days..=A0

short answer... inadvertently hit cold= start switch while messing with GPS and flying at 1000' AGL..=A0 not e= nough time to troubleshoot...=A0 had to fly plane and find a place to land.=

Both happy and appalled when the I realized the problem 2 minutes after= the commotion stopped.=A0 The tower must have been plain appalled when I t= ook off again later this afternoon.

--
David Leonard

Turbo Rotary RV-6 N4VY
http://N4VY.RotaryRoster.net
http://RotaryRoster.net<= /font>=20


On Sat, Mar 13, 2010 at 5:31 PM, Dave <da= vid.staten@gmail.com> wrote:
Bill Monroe wrote:

Dave=92s goin= g to have an interesting story to tell=85

http://www.cbs8.com/g= lobal/story.asp?s=3D12136229

Glad he landed safe..
--
Homepage: =A0http://www.flyrotary.com/
Archive and UnSub: =A0 http= ://mail.lancaironline.net:81/lists/flyrotary/List.html



=




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