However much that list of items might cost... it certainly isn't MUCH less than a $50 Fiber Optic Kill Switch from SmartFly.
It's definitely heavier by at least a couple oz. and offers the potential for servo failure, switch failure and linkage failure.
Not to mention considerably more time in installation...
The last thing I want to do to my $2000+ plane is to install an "old servo, salvaged nyrod and slide switch"
Sure it works... but it simply offer more failure points than the SmartFLy...
And the real question then comes down to "Why?" to save $12 on a $2000+ plane?
There have also been some discussions on the wisdom of choke killing an engine... at high rpm and flywheel effect... some say there's propensity to bend the rod due to flooding a cylinder. I dunno... the the previous advantages alone are enough to justify the $50 optical switch.
ORIGINAL: BillS
An old servo, salvaged nyrod and a slide switch should be less than $50. You must be using a sophisticated switch.
Maybe those unconcerned with people safety could buy into the redundant kill concept based on saving the airplane.
Bill