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  • 914Driver

    May 19, 2011 6:13 a.m. 914Driver SuperDork

    The Sailplane Club I belong to has a Club Car gas golf cart it uses to tow sailplanes out to the runway. No engine so it has to be towed. Depending on wind direction it could be 1/2 mile walk behind a golf cart, someone has to be at the wing tip to keep the plane levelish. Most folks that drive the cart are good at looking in the mirror once in a while the see how the wing walker is keeping up, trotting too fast or panting, others however keep a brisk pace and never look back. That's OK for the first bit, depending on the condition of the walker.

    I've not flipped the cart or put it up in the air to see the mechanics of how the gase pedal works, but near the bottom of the pedal I see a 1/4" diameter rod and inside the engine compartment I see the traditional lawn mower type steel cable inside a steel tube.

    It's a 300cc kawasaki engine.

    I'd like to install some kind of throttle lock that would hold the engine rpm at a constant but can be easily released in case of emergency.

    My friend that rides abandoned railroad tracks on a cart uses a motorcycle grip and cable with a screw tensioner to keep the grip where you set it but it is easily released. What if I incorporated something like that next to the driver's seat?

    Any suggestions, thoughts, ideas? I know it's tough without actually seeing the linkage, maybe once I thin out the garage I can get it up in the air.

    Thanx, Dan

  • foxtrapper

    May 19, 2011 8:41 a.m. foxtrapper SuperDork

    Clothespin on the cable

    Vicegrips on the cable or linkage

    Rubber band on the cable

    lawnmower manual throttle

    Screwdriver stuck somewhere to jam something

  • RossD

    May 19, 2011 8:54 a.m. RossD SuperDork

    A block with a notch cut into it that sits behind the pedal. The notch keeps in on the 'arm' of the pedal. In an emergency, reach down and pull it out and floor it!

  • RossD

    May 19, 2011 8:55 a.m. RossD SuperDork

    Oh, and whats a sailplane?

  • 914Driver

    May 19, 2011 9:13 a.m. 914Driver SuperDork

    RossD wrote:

    Oh, and whats a sailplane?

    My new vice.

  • AngryCorvair

    May 19, 2011 9:18 a.m. AngryCorvair SuperDork

    how about two of the railroad pedal cars, one at each wingtip? get rid of the golf cart entirely.

  • iceracer

    May 19, 2011 10:04 a.m. iceracer Dork

    Don't aircraft, the ones with engines, have something like what you are looking for ? Push/pull and twist to lock.

  • 914Driver

    May 19, 2011 1:41 p.m. 914Driver SuperDork

    British sports cars had those also on the choke, I'm looking for something a little more idiot resistant.

    Dan

  • bludroptop

    May 19, 2011 2:04 p.m. bludroptop SuperDork

    "Idiot resistant" and "throttle locked open" are fairly mutually exclusive concepts.

    Particularly when combined with the notion of towing an expensive and delicate aircraft. I just have visions of an un-manned Club Car pulling the aircraft out of control of the wing handlers and on to damageville.

    How about a throttle limiter instead - slow the golf cart's maximum speed down to a reasonable pace while retaining the effectiveness of the throttle return spring to avert potential disaster.

    It could be a simple as an adjustable gas pedal stop.

    My dad used to fly sailplanes and I've been up a few times - very cool.

  • 914Driver

    May 19, 2011 6:24 p.m. 914Driver SuperDork

    There currently is a rev limiter so as to keep the engine in one piece. The problem is erratic throttle control by a driver, that's all.

    When a plane lands, the Cart runs to where it is and pulls it back, running to fetch requires fast on good soaring days. During competition mulltiple landings are not uncommon. There are grass landing strips on each side of the asphalt one. BTDT. You're supposed to head off the air strip with retained momentum as you coast to a stop, one guy doesn't so you have no choice but to take the grass. Rearending is bad. It's a PITA and he's lambasted but, meh, I need the practice.

    Dan

 
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