X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from smtprh02.spirittelecom.com ([165.166.0.78] verified) by logan.com (CommuniGate Pro SMTP 5.1.10) with ESMTPS id 2178174 for flyrotary@lancaironline.net; Sat, 14 Jul 2007 23:51:40 -0400 Received-SPF: pass receiver=logan.com; client-ip=165.166.0.78; envelope-from=jewen@comporium.net X-Report-Abuse-To: abuse@spirittelecom.com Received: from engineer1 (208-104-89-87.lnhe.2wcm.comporium.net [208.104.89.87] (may be forged)) by smtprh02.spirittelecom.com (8.13.6/8.13.1) with SMTP id l6F3p1O8014019 for ; Sun, 15 Jul 2007 03:51:03 GMT Message-ID: <003301c7c693$5a6d6780$6405a8c0@cooleygroup.local> From: "Joe Ewen" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] Switch guards, switch locks, locking switches?? Date: Sat, 14 Jul 2007 23:50:57 -0400 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0030_01C7C671.D30F7C40" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.3138 X-MIMEOLE: Produced By Microsoft MimeOLE V6.00.2900.3138 X-Virus-Scanned: ClamAV 0.88/3674/Sun Jul 15 01:17:08 2007 on smtprh02.spirittelecom.com X-Virus-Status: Clean This is a multi-part message in MIME format. ------=_NextPart_000_0030_01C7C671.D30F7C40 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Hi Chris, You may want to consider a toggle switch with a locking lever. I used = this type on my landing gear, which is something I do not want to bump. = The lever has to be pulled out to change position. =20 Examples are NKK S1-AL (SPST), Mouser Number 633-S1-AL-RO, $10.25 S21-AL (DPST) Mouser Number 633-S21-AL-RO $12.60 S6-AL (DPDT) Mouser Number 633-S6-AL-RO $13.60 Joe ----- Original Message -----=20 From: Christopher Barber=20 To: Rotary motors in aircraft=20 Sent: Saturday, July 14, 2007 9:32 PM Subject: [FlyRotary] Switch guards, switch locks, locking switches?? As most of y'all may know, my project is an all electric bird = (Velocity SE) with a rotary engine. Since if I loose power things get = quite I am using Bob Knuckls' duel alternator/duel battery set up. What = I am curious about is the switches in the cabin. Currently I have all = the switches up high on the panel a bit right of center towards the = co-pilot position. I hope to not have a passanger who would = inadvertanlty flip a switch down and off, HOWEVER, you never know what = may get tangled or a stray move may flip a switch. If my coil switch or = primary injectors get switched off I will start sweating. Also, I don't = really mind the switches where they are, but I do have a couple of other = places I would like them, but I placed them here as to minimize being = bumped. My question is what other options do I have to either guard against = accidental deactivation. I have purchased a couple of aviation locking = toggles from ebay, but they are kinda small and may not be up for the = task (but at $13.00 for twoI couldn't go too wrong...they may work for = my coil switch and primary fuel). The regular priced DPDT (for my = contactors and injectors) seem to start at close to $60.00 a piece...a = bit much for my police salary if other options will surfice. I have also considered installing some of the switch guards you see in = old nuclear missle bunker movies that they would open to expose the = firing buttons for the big ol' missles. I considered installing them = upside down (which is really easy) so that they are on when the cover is = closed thus making the switch impossible to turn off by mistake. This = seems really fool proof, however, the guards, while cheap, are pretty = big and do not look all that, well, elligant. Also, I was watching the Astronaut Farmer last night on PPV and saw = the little hard wire loops that where installed next to the switches on = each side of the individual switches in his space capsule and this = reminded me of the ones NASA used to use....maybe still do. Donno. = These seem to be just half circles that make grabbing the switch very = deliberate and minimizes potential knocks. Finally, it seems as if I = have seen bars held in by springs that lay across a series of switches = to keep them in place. =20 What say ye? Insight? Wisdom? Warnings? Observations? WAG's? Thanks. All the best, Chris Barber Houston crossed posted on Reflector, FlyRotary, Aeroelectric Connection email = list & Canard Aviation forum ------=_NextPart_000_0030_01C7C671.D30F7C40 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
Hi Chris,
 
You may want to consider a toggle = switch with a=20 locking lever.  I used this type on my landing gear, which is=20 something I do not want to bump.  The lever has to be pulled out to = change=20 position. 
 
Examples are NKK
S1-AL (SPST), Mouser Number = 633-S1-AL-RO,=20 $10.25
S21-AL (DPST) Mouser Number = 633-S21-AL-RO=20 $12.60
S6-AL (DPDT) Mouser Number 633-S6-AL-RO = $13.60
 
Joe
----- Original Message -----
From:=20 Christopher Barber =
Sent: Saturday, July 14, 2007 = 9:32=20 PM
Subject: [FlyRotary] Switch = guards,=20 switch locks, locking switches??

As most of y'all may know, my project = is an all=20 electric bird (Velocity SE) with a rotary engine.  Since if I = loose power=20 things get quite I am using Bob Knuckls' duel = alternator/duel=20 battery set up.  What I am curious about is the switches in the=20 cabin.  Currently I have all the switches up high on the panel a = bit=20 right of center towards the co-pilot position.  I hope to not = have a=20 passanger who would inadvertanlty flip a switch down and off, HOWEVER, = you=20 never know what may get tangled or a stray move may flip a switch. If = my coil=20 switch or primary injectors get switched off I will start = sweating. =20 Also, I don't really mind the switches where they are, but I do have a = couple=20 of other places I would like them, but I placed them here as to = minimize being=20 bumped.
 
My question is what other options do = I have to=20 either guard against accidental deactivation.   I have = purchased a=20 couple of aviation locking toggles from ebay, but they are kinda = small=20 and may not be up for the task (but at $13.00 for twoI couldn't go too = wrong...they may work for my coil switch and primary fuel).  The = regular=20 priced DPDT (for my contactors and injectors) seem to start at close = to $60.00=20 a piece...a bit much for my police salary if other options will=20 surfice.
 
I have also considered installing = some of the=20 switch guards you see in old nuclear missle bunker movies that they = would open=20 to expose the firing buttons for the big ol' missles.  I = considered=20 installing them upside down (which is really easy) so that they are on = when=20 the cover is closed thus making the switch impossible to turn off by=20 mistake. This seems really fool proof, however, the guards, while = cheap,=20 are pretty big and do not look all that, well, = elligant.
 
 Also, I was watching the = Astronaut Farmer=20 last night on PPV and saw the little hard wire loops that where = installed next=20 to the switches on each side of the individual switches in his = space=20 capsule and this reminded me of the ones NASA used to use....maybe = still=20 do.  Donno.  These seem to be just half circles that make = grabbing=20 the switch very deliberate and minimizes potential knocks.  = Finally, it=20 seems as if I have seen bars held in by springs that lay across a = series of=20 switches to keep them in place. 
 
What say ye?  Insight?  = Wisdom?=20 Warnings? Observations?  WAG's?
 
Thanks.
 
All the best,
 
Chris Barber
Houston
 
crossed posted on Reflector, = FlyRotary,=20 Aeroelectric Connection email list & Canard Aviation=20 forum
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