X-Junk-Score: 0 [] X-Cloudmark-Score: 0 [] X-Cloudmark-Analysis: v=2.2 cv=QoAc5h6d c=1 sm=1 tr=0 a=dJiNv8RenCiMLzqOxEuZLA==:117 a=dapMudl6Dx4A:10 a=pGLkceISAAAA:8 a=Ia-xEzejAAAA:8 a=eRLigfuSAAAA:8 a=t8U8JQlg78EsK4V_4tcA:9 a=QEXdDO2ut3YA:10 a=hyHzWxwCcJUDl22FdRQA:9 a=bwTRvKKXvGx0wyRD:21 a=Urk15JJjZg1Xo0ryW_k8:22 a=BfhXYjFvZD4iae-mNffo:22 From: "Andrew Martin andrew@martinag.com.au" Received: from mail-qk0-f169.google.com ([209.85.220.169] verified) by logan.com (CommuniGate Pro SMTP 6.2.6) with ESMTPS id 11508314 for flyrotary@lancaironline.net; Sat, 11 Aug 2018 22:51:13 -0400 Received-SPF: none receiver=logan.com; client-ip=209.85.220.169; envelope-from=andrew@martinag.com.au Received: by mail-qk0-f169.google.com with SMTP id z74-v6so8910430qkb.10 for ; Sat, 11 Aug 2018 19:51:14 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=martinag-com-au.20150623.gappssmtp.com; s=20150623; h=mime-version:references:in-reply-to:from:date:message-id:subject:to; bh=rm4lcMU3gS7rGF4krxrTBXJGBWphM004+AIrrLYkrNA=; b=yWXMWa5oLmqxijYuPCMoGuDgi5UDZ3T9YRwE4l68qHk33fJ3o/b91rK6mmWb+LIrD3 HWat6hSKcoqQ+c4MMVnHyII6gRDYAp1SDsskiazOi7xkL8+FiMm/NSxOyZFlVhrzroMu T7o8YH6EYDVNEgJk4EysomJJShnbPbOTRj43LS6SW76kSTyV/Ivv6OUbn9cDjj8N5s6N /PAwW5eo+O5qrnvijOIr3Z67NgPt9lN3Wi5z5m3zGbsyX4jMw5gN6IHjmkNXJOlYnCjM 456oTRXKkzZ7qq5D1gitWacVLFxAH2k8wyWxDV9h28R/cFRHP14+xKLZ6hUoAV3om/0A yqhA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to; bh=rm4lcMU3gS7rGF4krxrTBXJGBWphM004+AIrrLYkrNA=; b=ol9RmPk5UD/ouNnzPic95ZJ0BS+zegl80T7/wNAnHHgjGL4N6k2oGE2u5v6syilGHJ HhEEvDVe1OPktJirW2jj4Wsi3A8HMJWI8qBrN7oQvV/7Icv6x7iQ8BfUiSU2hBiqKSBw OW1xUNJsG1SDlxCdfl5BJZtLvCxI9iQlmTlS5z8vRDntvQw2ZxWUhI2Cg2FgFowWtuZu SGeBC0IFjP5tdbyG9zJTm8BLRdsafSzHF88z01uPUbiiMlYZnmeB/E7Fkp2oCzx64LpW SilX8P0gUpZ7sQ+t3oDmNkzVydrgRAYsExbLMYHNL8SrmfVz+HRLmH3kw97mL6yPIDUH arIA== X-Gm-Message-State: AOUpUlH/q/CiE8dGb+EOZdRa/mjI7+XsZUqeZa0GA+2dTeWxEN+sFDoK caIExQ8KlQ1cpulXa/41nIy4qCnIlo8SoTPPxxljI7k= X-Google-Smtp-Source: AA+uWPzY6JNkNxKMEr05zCcWpOcwL3aiuoGrVbrG3Xj6Gm/EC3t2UtzwVztZMECIzien+KzGiIL050sano3cI+IThZE= X-Received: by 2002:a37:2814:: with SMTP id o20-v6mr11168841qkh.245.1534042256625; Sat, 11 Aug 2018 19:50:56 -0700 (PDT) MIME-Version: 1.0 References: In-Reply-To: Date: Sun, 12 Aug 2018 10:50:43 +0800 Message-ID: Subject: Re: [FlyRotary] Re: wiring To: Rotary motors in aircraft Content-Type: multipart/alternative; boundary="000000000000c6ea200573340bdc" --000000000000c6ea200573340bdc Content-Type: text/plain; charset="UTF-8" Yeah, I'm leaning towards just replacing the fuse blocks, just in case I got a dodgy one. With your jump-start, just add wiring from battery to a Anderson plug somewhere accessible in the cabin. Then can use one of the new lithium jump battery packs. Light to carry & better than connecting to another vehicle. If your main battery has let you down, might pay to consider replacing it. Andrew On Sun, 12 Aug 2018, 10:19 Neil Unger 12348ung@gmail.com < flyrotary@lancaironline.net> wrote: > Andrew, Electrics -- I hate them as all looks the same if it works or > not. At least with mechanics you get a half gear missing which is obvious, > not so with electrics. I wired my fuses with a 30 amp fuse so that without > a solid short it should never trip. Redundancy is the never ending > discussion --- just where do you stop? LIke Dick Smith said, we need > "affordable" safety, not a full second plane towed behind. Only time I > have trouble starting is if batteries get below 11 volts, otherwise second > turn every time -- noise. > > Question to all, just what sort of connection can I put in my electrical > circuit to take jumper leads?? My baron had a female plug on the outside > for those occasions. I want something similar on the inside that I can > plug into without having to dismantle the seats to get to the batteries. > Bad enough having to find another battery let alone a full tool kit as > well. Suggestions?? > > Neil Unger. > > On 8/12/2018 11:41 AM, Andrew Martin andrew@martinag.com.au wrote: > > > Just found the cause of an intermittent problem I've been having. Seems > over the last couple of weeks I thought I had been flooding the engine on > startup, Well, I had but not from what I thought. For absolute years I've > never really had any issue getting the engine to start. but then just as > I'm about to start flying again occasionally it would be impossible to > start. turns out the ignition fuse was acting like a resistor. > Was hard to diagnose as just touching the fuse made it work so every time > I put the multimeter on it it would show as ok, and volts at the coils was > only ever slightly lower but obvious now at very low amps. and if by luck > when the engine did start it would continue to run( guess due to extra > couple of volts from alternator) so no inflight failure, but would only > have been a matter of time. > > Anyway now when I should be right in my test phase, I'm back trying to > figure out if I need a redundant power supply for the engine. hard because > of the type of failure and there are so many single point failures possible > its kind of pointless trying to mitigate them all. > > The problem area was the contact surface between fuse & fuse holder, Not > sure if I got a dodgy fuse block or if its just the environment. > So do I duplicate the engine power bus, switches & wiring with diodes > where the systems join at each component( lots a work) or just put it down > as a totally random failure & just check & clean fuse panel connections as > part of the annual inspection? > > Andrew > > > > > --000000000000c6ea200573340bdc Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable
Yeah, I'm leaning towards just replacing the fuse blo= cks, just in case I got a dodgy one.

With your jump-start, just add wiring from battery to a Anderson plu= g=C2=A0 somewhere accessible in the cabin. Then can use one of the new lith= ium jump battery packs. Light to carry & better than connecting to anot= her vehicle. If your main battery has let you down, might pay to consider r= eplacing it.=C2=A0

Andre= w

On Sun, 12 Aug= 2018, 10:19 Neil Unger 12348ung@gmai= l.com <flyrotary@lanc= aironline.net> wrote:
=20 =20 =20

Andrew,=C2=A0=C2=A0 Electrics -- I hate them as all looks the same i= f it works or not.=C2=A0 At least with mechanics you get a half gear missi= ng which is obvious, not so with electrics.=C2=A0 I wired my fuses with = a 30 amp fuse so that without a solid short it should never trip.=C2=A0 Redundancy is the never ending discussion --- just where do you stop?=C2=A0 LIke Dick Smith said, we need "affordable" safe= ty, not a full second plane towed behind.=C2=A0 Only time I have trouble starti= ng is if batteries get below 11 volts, otherwise second turn every time -- noise.

Question to all, just what sort of connection can I put in my electrical circuit to take jumper leads??=C2=A0 My baron had a female plug on the outside for those occasions.=C2=A0 I want something simil= ar on the inside that I can plug into without having to dismantle the seats to get to the batteries.=C2=A0 Bad enough having to find anothe= r battery let alone a full tool kit as well.=C2=A0 Suggestions??

Neil Unger.


On 8/12/2018 11:41= AM, Andrew Martin andrew@m= artinag.com.au wrote:
=20

Just found the cause of an intermittent problem I've been having. Seems over the last couple of weeks I thought I had been flooding the engine on startup, Well, I had but not from what I thought. For absolute years I've never really had any issue getting the engine to start. but then just as I'm about to start flying again occasionally it would be impossible to start. turns out the ignition fuse was acting like a resistor.
Was hard to diagnose as just touching the fuse made it work so every time I put the multimeter on it it would show as ok, and volts at the coils was only ever slightly lower but obvious now at very low amps. and if by luck when the engine did start it would continue to run( guess due to extra couple of volts from alternator) so no inflight failure, but would only have been a matter of time.

Anyway now when I should be right in my test phase, I'm back trying to figure out if I need a redundant power supply for the engine. hard because of the type of failure and there are so many single point failures possible its kind of pointless trying to mitigate them all.

The problem area was the contact surface between fuse & fuse holder, Not sure if I got a dodgy fuse block or if its just the environment.
So do I duplicate the engine power bus, switches & wiring with diodes where the systems join at each component( lots a work) or just put it down as a totally random failure & just check & clean fuse panel connections as part of the annual inspection?

Andrew




--000000000000c6ea200573340bdc--