Sabre II: Angle of Glide

[Bengel 0]

Does anyone know, what the angle of glide of a Sabre II 150, loaded at 1.1, is? And on half breaks? Like 1: ...
Thanks for your answers.
-Chris-

I'm a British nanny, and I'm dangerous!

[phoenixlpr 0]

On what elevation? On what density altitude? On what temerature? With what humidity?

About 2:1

[Bengel 0]

elevation: between 3000 and 6000 ft
temperature: around the freezing point
humidity: very low (winter, as you already can imagine ;) )

And can I get a much better glide with the rear risers or are half breaks just fine?

I'm a British nanny, and I'm dangerous!

[phoenixlpr 0]

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elevation: between 3000 and 6000 ft
temperature: around the freezing point
humidity: very low (winter, as you already can imagine ;) )

Get a GPS and play around.

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And can I get a much better glide with the rear risers or are half breaks just fine?

A Book to read: The Parachute and its Pilot by Brian Germain.

[jakee 1,594]

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And can I get a much better glide with the rear risers or are half breaks just fine?

There is no single level of control input that will always give you the best glide (relative to the ground). It all depends on what the wind is doing.

Do you want to have an ideagasm?

[AggieDave 6]

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Get a GPS and play around.

You don't need a GPS to get a good idea of what works the best for upwind spots.

Find the accuracy spot (the spot on the ground that doesn't move) and then go to 1/2 brakes. Then try it with some rear input. Which input made the spot go the furthest away? And there you go. In my experience with Sabre2s I found about 1/2 toggles to work the best; however, your experience may differ. Go do some altitude clear and pulls (if its not too cold for you right now) and play around with all the inputs on your canopy.

--"When I die, may I be surrounded by scattered chrome and burning gasoline."

[za_skydiver 0]

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A Book to read: The Parachute and its Pilot by Brian Germain.

Awesome book! Everything you ever wanted to know about parachutes, and everything you didnt even know you wanted to know or needed to know about parachutes!

Some dream of flying, i live the dream...

[phoenixlpr 0]

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You don't need a GPS to get a good idea of what works the best for upwind spots.

Find the accuracy spot (the spot on the ground that doesn't move) and then go to 1/2 brakes. Then try it with some rear input. Which input made the spot go the furthest away? And there you go. In my experience with Sabre2s I found about 1/2 toggles to work the best; however, your experience may differ. Go do some altitude clear and pulls (if its not too cold for you right now) and play around with all the inputs on your canopy.

?????

He wanted to know more detailed info about glide. GPS is good.

[AggieDave 6]

He said, do I get better glide with 1/2 brakes or rear risers. I was answering that part of his question.

--"When I die, may I be surrounded by scattered chrome and burning gasoline."

[phoenixlpr 0]

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He said, do I get better glide with 1/2 brakes or rear risers. I was answering that part of his question.

I had no idea why he wants to have exact glide data...

[Cloggy 1]

Looking at my Neptune, it seems I have about the same rate of descent in half brakes or rear risers. I suppose this should make the rear risers the better glide (more forward speed).

I'm wondering what the real benefit of knowing the actual glide angle would be?

[Reginald 0]

No. Listen to Evil Bert (Aggie Dave) here gang. The only way to effectively understand glide, etc. is to use the accuracy trick. Evil Bert is wise...all hail Evil Bert!

"We've been looking for the enemy for some time now. We've finally found him. We're surrounded. That simplifies things." CP

[porterhouse 0]

It depends a lot on the wind direction (head wind, tail wind, cross wind, no wind, variable winds, etc.).

Generally, flying in half brakes decreases lift. Although half brakes does alter airflow, it also creates more drag on the canopy. Half brakes pulls down the tail of the canopy, which increasing the surface area along the back of the wing.

Increased surface area = increased drag.

Increased drag = slower forward speed.

Slower forward speed = less air moving over the wing.

Less air movement over the wing = less glide.

Using rear risers creates increased lift by lowering the canopies angle of attack. Rear risers do not create the excess drag associated with toggle input, but you have to be careful with them. If you give too much rear riser input, you can stall the wing.

Always practice everything up high first.
Learn exactly how your canopy will respond to an input at a high enough altitude to cutaway. Then try it near the ground.

Also, don't take my word for it. Any time you get advice from ANYONE, ask two other people the same thing. There is not one jumper in skydiving who knows all the answers. If you meet someone who thinks they know everything about skydiving, make sure you don't jump with them.

And yes....DEFINATELY read 'The Parachute and Its Pilot'.

Fly fun and land safe!

[Bengel 0]

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I'm wondering what the real benefit of knowing the actual glide angle would be?

I'm thinking about calculating the distance you can fly from, let's say, a mountain ;)

So I really need some numbers in order to work with a map.

Does 1:2 describe the glide with half-break setting?

I'm a British nanny, and I'm dangerous!