Hi, Dene.
Now that you mention it, I'm pretty sure these ignition switches are
double pole, although I can't remember how they are wired. I must dig out
that wiring diagram.
I always knew Rob was a daring man! But I find hard to don't believe that
battery story, because that is only a 7.2 amps battery, and coils must
take a serious drain! In my experience, as soon as the battery voltage
drops, the engine is much harder to start, too. Anyway, as soon as I
restart the engine, I plan to run a test on ground to see what the
situation is with the dual ignition. If I don't get at least 20 minutes on
battery only, then I will think of upgrading the battery.
Serge Vidal
KR2 "Kilimanjaro Cloud"
Paris, France
"AVLEC" <av...@telkomsa.net>
Envoyé par : krnet-boun...@mylist.net
12/27/2005 09:10 PM
Veuillez répondre à KRnet
Remis le : 12/27/2005 09:02 PM
Pour : "KRnet" <kr...@mylist.net>
cc : (ccc : Serge VIDAL/DNSA/SAGEM)
Objet : Re: Réf. : KR> Serge's ignition
Hi Serge
I spoke to Rob this morning and he says that he had it wired like that all
the time (through a double pole switch). The only thing I would have
changed
in his case would have been to install a second battery so that the 12V
supply could be changed out as well. When you talk about a relay, it is
really a solid state device and not an electro mechanical relay.That
ignition must be very light on
power, he says that he ran the motor without an alternator for the first
100hrs or so without ever recharging the battery! Just how accurate his
memory
is I don't know. His address is: 158 Villiers Road Walmer Port Elizabeth
6056.
Regards
Dene Collett
KR2SRT builder
South africa
Whisper assembler
See: www.whisperaircraft.com
mailto: av...@telkomsa.net
----- Original Message -----
From: "Serge VIDAL" <serge.vi...@sagem.com>
To: "KRnet" <kr...@mylist.net>
Sent: Tuesday, December 27, 2005 11:02
Subject: Réf. : KR> Serge's ignition
Hi, Dene.
Yes, that is a very interesting thought indeed, and very seducing too.
Although I won't go that route at this stage, because my electrical system
has not been built so as to be modified easily. There are two of these
fancy aircraft connectors with crimped pins to go through... (leftovers
from the Rooivalk attack helicopter development program!)
I can see no reason why this electronic ignition system won't work with a
six cylinders. I would strongly recommend that you install two sets of
pick-ups (after all, we don't know how well these components age), but I
agree one spark plug per cylinder and one set of coils should do the
trick.
By the way, have you got a mail address for Rob Van der Merwe?
Happy new year,
Serge Vidal
KR2 "Kilimanjaro Cloud"
Paris, France
"AVLEC" <av...@telkomsa.net>
Envoyé par : krnet-bounces+serge.vidal=sagem....@mylist.net
24/12/2005 12:34
Veuillez répondre à KRnet
Remis le : 24/12/2005 12:25
Pour : "KRnet" <kr...@mylist.net>
cc : (ccc : Serge VIDAL/DNSA/SAGEM)
Objet : KR> Serge's ignition
Hi Serge
I was just thinking about your primary ignition system (the one with the
centrifugal advance). You actually have two seperate systems there which
are joined by one common mode of failure, the switch. If you changed the
switch to a
double pole switch with two seperate positive supplies and a seperate
positive supply from the switch to each "system" you will in effect have a
seperate ignition system for each pair of cylinders. I suppose the same
goes
for your secondary ignition. I don't know how well the plane will fly on
two
cylinders but I suppose that is better than none at all. If anything it
will
improve your glide slope!
I plan on using an identical system on my corvair 3100 , only mine will
have
an extra pickup, an extra amplifier and an extra coil. The pickups will
just
have to be arranged 120 deg apart in stead of 180 and it should work just
fine. I don't think I will even install a secondary ignition as you have
because I think the KR will be able to stay in the air and maintain
altitude
just fine on four cylinders should I lose one ignition. Now to find a
triple
pole toggle switch if there is such a thing.
To all, have a merry christmas and a prosperous new year.
PS. Steve from Zambia is now living here in Port Elizabeth and has been in
contact with me for the past three weeks. I had a brew with him yesterday
and he says Hi to all on the list. As soon as he has his computer set up
and
an internet connection he will join us on the list.
Regards
Dene Collett
KR2SRT builder
South africa
Whisper assembler
See: www.whisperaircraft.com
mailto: av...@telkomsa.net
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