I also find the “Injector
Select” switches useful for several purposes, Rino.
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.
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.
4. I also use them to turn off the engine –
that ensures no residue fuel in the housings.
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.
But, once again, you can certainly fly
without them – I just find them very useful.
My 0.02
Ed
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...
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.
----- Original Message -----
Sent: Tuesday, March 16, 2010 1:23 AM
Subject: [FlyRotary] Re: Civil Discourse was : [FlyRotary] Re: Ut-Oh...
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.
Sent: Monday, March 15, 2010
8:47 AM
Subject:
[FlyRotary] Re: Civil Discourse was : [FlyRotary] Re: Ut-Oh...
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.
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