Front risers - how much strength

[vonSanta 0]

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But regardless, Newton's laws dictate that the vector sum of all the riser forces equals your weight x (Gs you are pulling), so light forces on fronts equates to heavier forces on rears, and vice versa.

So the relationship between the two is constant, even at high speed? I.e speed isn't a significant factor?

I'd imagine that a turn would be different from straight flying (the outher risers would be moving at a slightly higher speed). A turn alters the profile of the canopy - does this significantly alter the force distribution?

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[kallend 2,027]

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But regardless, Newton's laws dictate that the vector sum of all the riser forces equals your weight x (Gs you are pulling), so light forces on fronts equates to heavier forces on rears, and vice versa.

So the relationship between the two is constant, even at high speed? I.e speed isn't a significant factor?


I'd imagine that a turn would be different from straight flying (the outher risers would be moving at a slightly higher speed). A turn alters the profile of the canopy - does this significantly alter the force distribution?

You will be pulling more than 1 G in a turn, but Newton's laws still apply. The vector sum, f, of the riser forces has to equal M*a, where a includes gravity.

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The only sure way to survive a canopy collision is not to have one.

[benny 0]

Thanks for all the input on this guys. I was able to perform both front and rear riser turns today (all above 2000 ft of course)! Woohoo! I'm psyched

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[murps2000 86]

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You will be pulling more than 1 G in a turn, but Newton's laws still apply. The vector sum, f, of the riser forces has to equal M*a, where a includes gravity.

As the great Foghorn Leghorn once so elloquently stated: "I know, I know, you can't argue with figures, son!"

With regard to canopy design, I've often puzzled over how two different sizes of the same model could seem to exhibit such variances in riser pressure. I've experienced this on Stilettos and Batwings, and I'm at a loss to explain it. While I can't be absolutely positive as to the state of trim of all of the canopies I've jumped, they all seemed to be okay. Any hypotheses, doctor?

[kallend 2,027]

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You will be pulling more than 1 G in a turn, but Newton's laws still apply. The vector sum, f, of the riser forces has to equal M*a, where a includes gravity.

As the great Foghorn Leghorn once so elloquently stated: "I know, I know, you can't argue with figures, son!"

With regard to canopy design, I've often puzzled over how two different sizes of the same model could seem to exhibit such variances in riser pressure. I've experienced this on Stilettos and Batwings, and I'm at a loss to explain it. While I can't be absolutely positive as to the state of trim of all of the canopies I've jumped, they all seemed to be okay. Any hypotheses, doctor?

Nothing I'd care to bet on. My 135 and 150 Stilettos have quite different riser pressures. I attribute it to "trim", the 135 is trimmed more nose down which would cause the center of lift to move back, decreasing front riser loads. That's a WildAssGuess.

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The only sure way to survive a canopy collision is not to have one.