NO BOOBIES JUST A BRAKE LINE QUESTION

[squarecanopy 0]

I have looked around here and not found much info on toggle pull force - does anybody know if it has been done to rig brake lines with a system, maybe on the risers, to provide a reduced pull force on the toggles?

Just burning a hole in the sky.....

[benpat 0]

I jumped in north Carolina a few years back, Raeford, 2 in the plane,yours truly and Cheryl Stearns.
She was practicing for her record attempt (success) for the most jumps in 24 hours.
Her rigger had devised a pulley sytem to enable her to get down quick........
She might be able to advize,Google her,She's quite the gal...

[breadhead 0]

Any pulley system that reduces the pull force with a factor of 2, multiplies the distance you need to pull with the same factor.

Considering the length of human arms, it would be impossible to cover the entire spectrum between full flight and deep brakes.

Your flare and your landing would suffer from such a modification.

[wmw999 2,586]

If the toggle pressure is too high, ask around about other canopies with a lower toggle pressure. That's a better plan.

Wendy W.

There is nothing more dangerous than breaking a basic safety rule and getting away with it. It removes fear of the consequences and builds false confidence. (tbrown)

[riggerrob 643]

Accuracy (precision landing) competitors have been using similar systems for decades.
Basically, they are dive loops, only installed on the right front riser.

[JohnRich 4]

Any such system is going to complicate what you've already got, and that could lead to problems.

Build up your muscles instead. Tie a bungee cord to the ceiling at home, and do repetitions pulling downward, to strengthen the appropriate arm muscles.

[hookitt 1]

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I jumped in north Carolina a few years back, Raeford, 2 in the plane,yours truly and Cheryl Stearns.
She was practicing for her record attempt (success) for the most jumps in 24 hours.
Her rigger had devised a pulley sytem to enable her to get down quick........
She might be able to advize,Google her,She's quite the gal...

Those are different. 2 to 1s have been around for a long time. They are installed on the front riser so it's easier to pull them down and keep them down. The handle is pulled down say, 6 inches but the riser is only pulled down 3 inches. This makes them pretty useless for swooping. SOME CRW folks like them while others have no use for them. I've seen CRW camera people use them with good success.

Brake toggles, no matter how hard they are to pull down, are still not that difficult to pull down unless there is very little upper body strength. No practical way to install force reduction system on brake lines has been developed, at least for sport application.

Here is an outstanding diagram of a 2 to 1 front riser pull down force reduction system.

Feel free to rate this picture

My grammar sometimes resembles that of magnetic refrigerator poetry... Ghetto

[mark 107]

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Here is an outstanding diagram of a 2 to 1 front riser pull down force reduction system.

Feel free to rate this picture

Pulley ring is installed upside down. Otherwise, an outstanding diagram.

Hey, you asked!

Mark

[hookitt 1]

Doh ... you are correct sir. The corrected blue prints are off to the publisher as I type

Thanks

My grammar sometimes resembles that of magnetic refrigerator poetry... Ghetto

[DeNReN 0]

Quote

Quote

Here is an outstanding diagram of a 2 to 1 front riser pull down force reduction system.

Feel free to rate this picture

Pulley ring is installed upside down. Otherwise, an outstanding diagram.

Hey, you asked!

Mark

and the deflection area would be from attachment point to attachment point.....

you asked

great pic..let me understand what was being discussed without having to think

[ZigZagMarquis 9]

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Any pulley system that reduces the pull force with a factor of 2, multiplies the distance you need to pull with the same factor.

Considering the length of human arms, it would be impossible to cover the entire spectrum between full flight and deep brakes.

Your flare and your landing would suffer from such a modification.

Yes and no.

Reportedly, Cheryl Stearns used some sort of a system like this when she went for the "most jumps in a 24 hour period" record years ago.

I have no idea how it was configured exactly though.

[NickDG 23]

Weren't they basically "Trim Tabs" like some Crw jumpers were using? You could pull down the front risers and lock them in place. And you just released them prior to landing . . .

NickD BASE 194

[ZigZagMarquis 9]

Familiar with the trim tabs y'all speak of... seen them on big-ass military squares too... but I recall being told that Chyrel had something specifically on her steering lines, not the front risers... at least that's what I'm remembering, but I didn't see it personally and there's been a lot of sleep and beers since then...

[squarecanopy 0]

Hey, thanks everybody for the responses - skydivers are the best!
Even though I am just coming off of a shoulder rebuild the question was not for me but a jump buddy who is having trouble getting a full flare cuz she is such a little peanut and has arthritis in her hands. We will continue to investigate and I will contact Cheryl Sterns. Thanks again!

Just burning a hole in the sky.....

[ryoder 1,590]

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I have looked around here and not found much info on toggle pull force - does anybody know if it has been done to rig brake lines with a system, maybe on the risers, to provide a reduced pull force on the toggles?

The laws of physics dictate that anything you do to lighten the pull force with increase the toggle travel. The smaller the portion of trailing edge the steering line set includes, the lighter the toggle force, (and vice versa).

There is a compromise; Take a look at the flare toggles on a Sigma tandem main. These toggles attach to an extra steering line which is attached inboard of the regular steering lines. For most of the dive, the TI uses only the regular toggles, which lessens the pull force, but increases the stroke length making it difficult to flare w/o taking hand-wraps. When he gets ready for landing, he slips his hands through the flare toggles in addition to the regular toggles. Now he has more pull force, but will have no problem flaring.

"There are only three things of value: younger women, faster airplanes, and bigger crocodiles" - Arthur Jones.