Hand throttle - redneck style...

[redneck]

Originally Posted by Sven7

So, you hold it while the brake lever is down, or is the parking brake broken?

(I think locking the throttle position would be a safety issue unless hitting the brake unlocked it automatically)

It is used in the down position. The emergency brake still functions normally.
What's nice about the bike brake design is that when you let go it returns to idle just as fast as letting up on the pedal. In addition, the bike brake also has a return spring built in. I don't see any safety issues in this design.

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cRiPpLe_rOoStEr Interesting. I've also been lurking about it, but I'd rather get one of those ring-shaped throttle hand controls to be attached to the back of the steering wheel, widely used by disabled drivers.

I would think that specialty controls like that would be very expensive.

The bike brake style of design could be built for free...

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[cRiPpLe_rOoStEr]

Originally Posted by redneck

I would think that specialty controls like that would be very expensive.

I've already seen some homemade ones

[basjoos]

Originally Posted by redneck

Basjoos hand throttle lever I believe used friction like a farm tractor throttle to hold it at the desired speed. There are however, many ways to do this as each vehicle will require a little different approach.
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The hand throttle on the Aerocivic can either be locked to hold a throttle setting to act as a "driving with load" cruise control or it can be used unlocked as an alternative throttle control when my foot gets tired on a long trip. The hand throttle lock is not a safety issue since I can easily override the friction lock by pulling the hand throttle's lever back to retard the throttle or, in an emergency, press in the clutch and let the engine rev up until I can get the lever pulled back. At normal freeway cruising speed power settings, the engine only revs up to 4k or 5k when the clutch is depressed.

[redneck]

basjoos -Thanks for the description of how your hand throttle works.

*** UPDATE ***

I went back and corrected the mushy anchor point with this.



The new anchor gives it solid feel and allows for additional adjustment.



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[ECONORAM]

Originally Posted by redneck

You could use a gear shifter from a old 10 speed bike. They had friction levers that you could adjust the amount of tension to hold the bike in gear.>

I was thinking of this or a push mower hand throttle, until I saw Donkey CRX' hand throttle. My grandpa had used a hand throttle from an airplane for this and a cruise control in his 79 diesel Rabbit. It had friction built in, and you could pull it for fast or large throttle changes, or spin it for slow or small adjustments...something like this:
Brian's Flying Blog: Airplane Mixture Leaning

Redneck, nice work on the new anchor point.