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How to skydive and paraglide?

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I am keen to share what I have done with my instructors.

Can I wear glasses? If you wear glasses, it is better to wear contacts. Then you will wear goggles. If you wear glasses, the pressure given by the googles may be unbearable. My goggle was tight and it prevents wind and air from brushing my eyes harshly.

jumping altitude (between 9,500 feet and 17,500 feet) between 2.9 km and 5.3 km

How does free fall feel? accelerate to 120 mph = 193 km per hour = 54 m/s
The earth’s gravity is 9.81 m/(s^2)

ignoring air resistance, an object falling freely near the Earth’s surface increases its velocity by 9.81 m/s for each second of its descent.
An object starting from rest will attain a velocity of 9.81 m/s after one second, 19.6 m/s after two seconds, and so on, adding 9.81 m/s to each resulting velocity.
But why we can free fall up to 60 sec? Is this due to air resistance?
Due to the earth’s gravity, it explains why as you free fall longer, you will feel that you are free falling faster and faster.

Newton’s law of universal gravitation simplifies to F = mg
F= ma

Experts out there, please kindly correct me if what I wrote have errors.

paragliding is very weather dependent, so your training might take 4 days, 4 months or even longer.

When starting your training, it is a good idea to write a detailed account of every flight in a log book.

You should record the details of the flight; location, duration, height gained, weather conditions, wind strength etc, but more importantly you should record anything unusual/unexpected or new.

Review your flights with your instructor and discuss technique.

Practice on the ground.

Wear a helmet whenever you are clipped in to your harness.

Always wear strong sturdy boots with good ankle support – the lighter the boots, the better.

Don’t be tempted to buy that great paraglider on e-bay. Your life will depend on your paraglider, so ask your instructor what they recommend before you invest in your first purchase.

When you’ve got your license, don’t just buy the first rig you see. Rent, borrow and try as many different types as you can, before you spend your hard-earned money.

Never stop learning. Getting your A-license only means you can jump out, freefall, open a parachute, and land it safely. This is where the real learning starts!

Skydiving is NOT about taking risks; it’s about enjoying a different environment. If you’re just looking for kicks, then you’ll find skydiving not all that fulfilling after only a couple of jumps.

Winglish: “You’ve got to use more than just your eyes, that’s the key. Communication of Winglish only happens through the brakes and risers. You’ll never hear it until you relax completely, all over, and feel the tension in your brake lines and risers. It’s a physical thing, so listen to Winglish through your body.”

“One of the greatest hazards paraglider pilots face is getting blown behind a ridge or mountain.Once you get into a blow-back situation, the penalties include power lines, extreme rotor turbulence, tree landings, and possible death or injuries from any of these.”

Avoiding launching on windier days is a good practice, but blow-backs occur from other situations and factors.

Are there any venturis to be aware of?
Are there locations near the site where the wind tends to be stronger?
What is the day’s forecast and what are the locals saying about the day?

If you are new to a site, get a full introduction from the locals.

Check the Wind Speeds with an anemometer before you fly.

Have a speed system ready on your glider. This means connected, adjusted, and ready for use.

Know that the winds can be dramatically stronger and dangerous as you ascend at any flying site.

Continuously monitor the wind speeds as you fly. Do this via your crab angle and lateral ground speed along the ridge.

Avoid flying higher on windy days.

If you do fly higher in strong winds, fly well upwind of the cliffs as you ascend and traverse the cliff or ridge.

Know how and when to penetrate out in front and how to descend to lower winds.

Penetrate and get down as soon as you notice that the wind is getting strong. When you get on your speed bar, your purpose should be getting down, not staying up in the strong winds.

Avoid the area above and behind the top of the cliff at all times.

What is the minimum height for a parachute to be deployed?
For skydiving, the requirement set by the United States Parachute Association says the main parachute for a D-License holder is 610 m (2000 feet) above the ground. this give time to fix any malfunctions. If you are less experience 760 m (2500 feet). The reserve parachute can open in less than 400 feet. The reserve absolute minimum would be around 214 m (700 feet) to land without injury.

Ref:
wikihow
http://www.uspa.org = the regulating body for U.S. skydivers.
Canada : The Canadian Sport Parachuting Association
UK : The British Parachute Association
Australia : The Australian Parachute Federation
http://www.paragliding-tales-and-reviews.com/paraglide-instruction.html
http://www.paragliding-tales-and-reviews.com/winglish.html
http://www.paragliding-tales-and-reviews.com/avoiding-blowback.html
http://www.fabulousrocketeers.com/Photo_See_Ya.htm

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Written by blueroselady

July 28, 2011 at 3:58 pm

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