Chute Release--handles--levers--knobs--??

[SPARKY]

Clippard makes all kinds of air "stuff"

[bucketlist]

...A high quality teflon coated cable with few bends, all mild is the trick for me.  It can take a lot of effort to slide 16 feet of cable.

I watched my brother, an experienced skydiver, pack his chute. !0 lbs of potatoes in a 5 lb bag, then a spring-loaded pilot chute which increased bag load, then climbing on his knees to crush bag so he could pull the flap holes over the posts on opposing flaps, which had a very flat taper to ensure flap grommets would slide off, so he could insert several pins through the posts. Pins of course were on the ripcord. Looked like a lot of force would be required to get pins to slide out of posts due to flat taper and high load. So I asked if it wasn't hard to pull. His exact words: "I never noticed." I guess when it's time for a chute, it's time for a chute.

[kiwi belly tank]

If you're running teflon coated cables or any cables for that matter, past the engine, protect them from fire & impact from blow ups.
You need all that crap to work when the "Oh $hit" moment pops up.
  Sid.

[SPARKY]

my cables are inside the frame tubes

[edweldon]

Sparky - In reply 40 you mention an "air interupt push button".  I'm not familiar with that teminology being somewhat unfamiliar with pneumatic controls.  I've also heard the term in association with high voltage switch gear, another unfamilar area. 
Sounds to me like a control that releases the pressure in a pneumatic system thereby taking the system from the "run state" to the "stop" state.  Same as the old Westinghouse air brake system that applies brakes when the air pressure is released from the system.  Is this what you were talking about?    Ed Weldon

[SPARKY]

Ed,  maybe I miss applied a term, between CRS and not being an engineer I do that a LOT--

what I was refering to is a push button switch/valve that is in a pressured line from the supply to the actuator cyl. When you push it down it lets the pressure pass through to the actuator cyl.;  but when you release the button it stops the air from passing the switch/valve and there would then be no pressure on the cyl., 

[edweldon]

Thanks. Sparky,
Two independent systems for the chute control with one on the steering wheel sure sounds like the way to go along with cable/line enclosures to minimize the damage from separate mechanical failure or fire.
It'll take some thoughtful design for the actuator mechanism next to the chute itself.  For me the rear engine character of my project also demands that the system be ready to work reliably in an alcohol or gasoline fire environment.  The question that I see is the relative merits of electrical vs pneumatic control for the actuator on the steering wheel.
Ed Weldon