zero-g maneuvers

[pilotdave 0]

This isn't skydiving related, and it's a few weeks old, but I thought it was appropriate...

http://www.washtimes.com/national/20050508-115742-7464r.htm

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..."Fly hard," the Marines asked. The cockpit responded, "You asked for it."
Climbing and swooping, the Black Hawk pilot crested a 400-foot hill then deliberately nosed into a dive so steep and abrupt that everyone inside felt weightless. A wheel chock rose off the floor like a magician's prop and flew forward into the cockpit, jamming the controls. A horrific, tumbling crash followed...

Makes me think about what might be lying around in a jump plane...

And a useless fact: an empty black hawk weighs more than a fully loaded twin otter.

Dave

[chuckbrown 0]

One of our jump pilots did that right after everyone took off their seat belts at 1,000 feet. I ended up looking at the roof of a C182 about 2 inches from my nose.

[78RATS 0]

Does the recovery from a zero G manuver generate 2 G's on the wings? [stupid, nonpilot question]

Rat for Life - Fly till I die
When them stupid ass bitches ask why

[pilotdave 0]

Nope... not necessarily. The pilot could start in a climb and push the nose over and end up level. The loading would just go from 0G to 1G. If the pilot nosed way below the horizon and had to pull up to avoid slamming into the ground, he could pull any number of Gs.

Dave

[billvon 2,394]

> Does the recovery from a zero G manuver generate 2 G's on the wings?

No. The only hard and fast rule is that you have to average 1G over the course of the flight (in terms of vertical lift.)

[droidicus 0]

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The only hard and fast rule is that you have to average 1G over the course of the flight (in terms of vertical lift.)

Only if you land at the same elevation as you took off from.

~Droid

[billvon 2,394]

>Only if you land at the same elevation as you took off from.

Nope, still have to average 1G. If you don't, you end up climbing (or descending) forever.

[pilotdave 0]

Well, the ground will cause it in the descent case, right? Like if you pushed over till you impacted. You're counting the upward acceleration caused by the earth, right?

Dave

[droidicus 0]

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>Only if you land at the same elevation as you took off from.

Nope, still have to average 1G. If you don't, you end up climbing (or descending) forever.

Oops, I was thinking of average vertical velocity , I always get second derivatives and first derivatives confused with each other

~Droid

[ryoder 1,381]

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Makes me think about what might be lying around in a jump plane...
Dave

An asshole 182 pilot did that to me once. A static line from a student was coiled up behind his seat. When the G's went negative, the static line shot up off the floor and that big heavy snap, (the end that is attached to the floor when in use), hit me right in the face. If I hadn't happened to have a heavy pair of goggles on at the time, I likely would have lost an eye.

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

[skydiver30960 0]

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>Only if you land at the same elevation as you took off from.

Nope, still have to average 1G. If you don't, you end up climbing (or descending) forever.

Oops, I was thinking of average vertical velocity , I always get second derivatives and first derivatives confused with each other

Ahh... the combination of these two posts reminds me how damn HAPPY I am to be done with engineering forever...

Elvisio "ridin' in the gut wagon now" Rodriguez


~Droid

[karenmeal 0]

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If I hadn't happened to have a heavy pair of goggles on at the time, I likely would have lost an eye.

Like they say, its all fun and games until someone loses an eye... then its fucking hilarious.


I always make the pilot do zero g's, I love that! The first time I had someone do zero g's in a jump plane I was in a 182 taking a nap right next to the pilot and woke up when my head touched the ceiling and I realized I was floating. That was fucking funny.

I always make sure to get a good pin check though after a zero-g maneuver.

-Karen

"Life is a temporary victory over the causes which induce death." - Sylvester Graham

[Jerry253 0]

All too often mechanics and avionics techs will drop a washer, nut or something else behind the panel, can't retrieve it and you got it, it will come lose during a Zero-G and settle somewhere creating a short.