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jimrooney
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PostPosted: Fri Mar 06, 2009 11:59 pm    Post subject: Reply with quote #61   
So.
We have pilots in this group that started at Wallaby. Some say they didn't have their hands on the bar on their initial flight. Fair enough... good to hear.

But we also have ones that say they did have their hands on the bar.

Not only this, we have video... very recent video...
http://www.youtube.com/watch?v=qyZqX8SQE84

Sorry guys... this IS done at Wallaby.
This IS NOT done anywhere else.

For clarity... "This"... first time student, hands on the basebar, instructor with left hand on the upright.

I stand by my original assessment... this floors me.
Jim
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lostgriz
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PostPosted: Sat Mar 07, 2009 10:21 am    Post subject: Reply with quote #62   
I know that Wallaby has a great safety record, and I will be doing some flying with them myself in a couple weeks. However, when it comes to safety, nobody should be above constructive criticism.
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Wingspan34
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PostPosted: Sat Mar 07, 2009 11:26 am    Post subject: Reply with quote #63   
I was thinking of going to WW Demo Days this month, but my finances aren't looking good. However, if I were able to go, . . .

Well, I'm master rated (big woop!), I've taught hang gliding, and done truck towing (ATOL) and aerotowing (Cosmos trike) and I've got a modest number of tandems under my belt (but no longer hold that rating).

Given all that, I would not WANT to have any input during my first launch during my (as I understand it - required) tandem check out flight at Wallaby. I'd be unfamiliar with the glider, the site, and the tow method. I'd want to be CONSERVATIVE and SAFE on the first tow. Let the tandem pilot get the bird in the air!

In place of the above, I'd be happy to pilot my own wing, solo, on a mellow morning flight in order to demonstrate my skills.

But my point here is that, as a knowledgeable, skilled, and experienced hang glider pilot, I'd still want the tandem pilot to maintain total control during take off. Tandem rigs are sluggish and bears to fly. While generally low performance, they still aren't your average hang glider. Creating an opportunity for things to go wrong just doesn't make sense.

Heck, I'm kind of ashamed I didn't notice Wallaby's tandem technique during that Al Rocker video - from months (a year?) ago.

I'd also like to mention that it could easily be true that some unexpected cross wind picked up during the launch and THAT was what sent the glider off to the left. But you can't know that from the video, and there's nothing to say or do if that was the cause. That'd just be the (bad) luck of the draw.

But a newbie having the possibility of effective and negative control input IS A CLEAR POSSIBILITY from what we see in that (and at least one other) Wallaby tandem video.

Question: What would we all have said if that had happened during Al Roker's flight? Shocked Bad methods can reflect on the whole sport - particularly when tandems are involved!

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IcRus
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PostPosted: Mon Mar 09, 2009 8:16 pm    Post subject: Re: What happened here? Reply with quote #64   
Thanks Rob McKenzie for your "Mature" Comments.
I think this thread is going the same place it did on the Other Report...
Some people here (JR) are BB Vultures waitng to bash Wallaby.
Let's try to keep this a discussion about what happened, what could have caused it, how can we learn from it....
I was also taught at WR and Steve was my instructor, I would love to hear from him..
Here are a few things to think about...

WR has a great safety record

Steve is a great instructor (Instructor of the year)

WR is the only AT training facility that I know of that restricts tandem to morning and evening (near perfect conditions). Some AT parks have over / under and yet will take up first timers in very turbulent conditions (to the point of puking)
just for the almighty dollar...

Even if you tell a new student (tourist) to hold onto the Instructors harness, what would keep them from grabbing the base tube in a panick attack during rollout? or even a down tube, sidewire?? What's next? handcuff them to your harness??

Both over/under and side by side have their advantages / disadvantages.

I guess my point is that things go wrong quickly as we see here, Steve did a great job....next.......
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Captian Matt
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PostPosted: Tue Mar 10, 2009 4:24 am    Post subject: Reply with quote #65   
AMEN!
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rfh12345
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PostPosted: Tue Mar 10, 2009 6:10 am    Post subject: Reply with quote #66   
I was wondering if anyone was going to bring up that he was awarded flight instructor of the year. He's a great guy and a great pilot. He does tandems all day long. It was a great save. Nobody got hurt. It doesn't even look like any equipment was really damaged.

When I was taking lessons, I think I had 3 training hill lessons and I wanted to cheat and get some real air time. The 5-10 second "flights" were such a tease, so I took a tandem. I was an actual student, midway through my progression, and I didn't touch the bar until a minute or so after we released at 2500 ft.

I was instructed on how things worked etc all the way up. I had my right arm across PIC's back, finger in a loop, my left hand holding another small loop on the PIC's left side, JUST like "wingspan" said.

When he gave me the bar he had my do some small turns, pull in for speed, out to slow, linked 180's, track a straight line etc. At about 1000' he took the bar back and I went into my previous position. I actually liked it that way as I didn't have to worry about anything and for a large portion of the flight I got to just lay there and take it all in. It was a great lesson and I think really helped me back on the training hill.

I personally wouldn't think a pilot should have their hands anywhere near the bar during take-off and landings until at least their 3rd time up and they should be an actual student working on their H-1. (but what do I know, I don't have zillions of hours and Wallaby does have an excellent track record, at least that I'm aware of)

It's still possible there was a failure of some type with the equipment and may have had nothing to do with anything else. We'll have to wait and see, but Wallaby prob should reassess it's training procedure. Steve is a great pilot though and the fact they walked away unscathed after pinning off so low and having to land downwind is surely proof of that. Great save Steve

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Windlord
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PostPosted: Tue Mar 10, 2009 6:37 am    Post subject: Reply with quote #67   
lostgriz wrote:
I know that Wallaby has a great safety record, and I will be doing some flying with them myself in a couple weeks. However, when it comes to safety, nobody should be above constructive criticism.

The "Griz Nation" agrees with you! thumbsup

My first tandem with Bart & Tiki at Cowboy Up was with hands on the instructor
during takeoff and landing.
Once in the air at a reasonable altitude, I was given the oppourtunity to learn
positioning "duet" between tug and wing, with an explanation of different
scenarios of lockout.
IMO the student/pax and the pilot, should be as one, during launch and
landing, unless otherwise specified by the pilot in command knowing the
abilities of the pax for that task.

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sg
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PostPosted: Tue Mar 10, 2009 6:40 am    Post subject: Reply with quote #68   
I'm going to take a contrarian/statistical approach to this.

If I were a researcher studying hang gliding, tandem flying, proper instruction technique etc, what would I observe?


a) A flight park with a great safety record
b) A student on the basetube technique at this flight park
c) Another flight park with a great safety record, where the students are NOT on the basetube during early flights
d) A huge # of statistically significant tandem flights over a large # of years and passengers/students
--------------------------------------------------
Logical conclusion: New student on or off the basetube has no noteworthy correlation to safety.


Anything other than this is a mere assumption not supported by the facts.

If there was any real safety issue with this technique, it would have been reflected in the numbers when were talking about 10,000+ flights.

We can argue all day long that its a bad idea for reasons X,Y,Z, but if the stats dont support your reasons, then your reasons are flawed.

Often, things that seem like a good or bad idea on the surface, simply arent.

For the record: I learned with hands off the basetube at first.

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Rebardan
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PostPosted: Tue Mar 10, 2009 7:09 am    Post subject: Reply with quote #69   
sg thats exactly what I derived as well.
in the aerotow flight park environment, the probability of a disastrous outcome in either case is insignificant in the hands of competent tandem pilot in command.
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Sky_Walker
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PostPosted: Tue Mar 10, 2009 7:39 am    Post subject: Reply with quote #70   
I'm curious how would you go about checking the safety record for a given flight park. Are close calls documented by all flight parks or only accidents that result in an injury. Is there a even a standard for what is considered safe operation ??? Do all flight parks document "Incidents" in the same way ???

It seems like it would be pretty difficult to compare the safety record of two different flight parks. We all know that you can get away with doing things wrong for along time until if finally bites you. I'm totally clueless to what the regulations are in regards to reporting accidents and near accidents, any enlightenment would be greatly appreciated.

A quick check of a few websites shows that almost all flight parks claim an impeccable safety record. A google search doesnt really turn up much useful safety information for a total newbie.

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SlingBlade
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PostPosted: Tue Mar 10, 2009 8:25 am    Post subject: Reply with quote #71   
I think you have to be careful in justifying not taking safety precautions from "it hasn't killed many people yet". If you can make a change that logically should reduce risk, and has little cost, why not do it? It may not be very likely that a student will freak out at the wrong time and that the instructor wouldn't be able to recover, but it certainly could happen. The fact is accidents are so rare that there is no statistically significant way of determining safety precautions from statistics alone. You have to analyze incidents and determine the causes, and go from there.
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sg
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PostPosted: Tue Mar 10, 2009 8:41 am    Post subject: Reply with quote #72   
SlingBlade wrote:
I think you have to be careful in justifying not taking safety precautions from "it hasn't killed many people yet".


Not justifying, simply challenging the implicit assertion that this is a safety precaution in the first place.

If hang glider pilots, for some reason, believe that tying a pink ribbon to your helmet was a safety precaution, and someone had an incident who wasnt wearing one, they would all come out saying SEEEEEEEE, aha! No ribbon = incident. Right? Laughing

But the real question is, does the pink ribbon really have an effect?

If we later discovered that one flight park always used pink ribbons, and another didnt, but there was no diference in safety record, what would we conclude?
What if the data set contained 10,000+ flights, a very statistically significant #?

I would conclude that the pink ribbon is not actually a safety factor. Otherwise you would definitely see a difference in the ratio of flights to accidents.

Someone may even comment that:
"I think you have to be careful in justifying not wearing pink ribbons just because "it hasn't killed many people yet". " Wink

Id rather let the data speak, and *so far*, I havent seen any data that students on the basetube makes any difference at all.

If someone has better accident data on Wallaby and other flight parks to compare, then we have more to talk about.

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SlingBlade
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PostPosted: Tue Mar 10, 2009 9:14 am    Post subject: Reply with quote #73   
The difference is that you can't make a reasoned argument that a pink ribbon can impact safety. My argument was against trying to use statistics alone to justify/not justify safety precautions. For your method to work it has to be something that greatly impacts safety to the point that it's killed a few people. That's not how any sane person would go about assessing risk.

There are plenty of things that we do that have almost no impact on safety but are done anyway because logically it could save a life. We have a backup strap even though you could easily go 10,000 flights without ever breaking the hang strap, especially if you replaced it frequently. In aerotow people carry hook knives even though it is very unlikely both a primary and secondary release would fail. We all carry parachutes even though non-acro pilots are very unlikely to ever deploy.

But at some point someone probably had a close call (or worse) and decided it was worth having that extra precaution. Even if it was "statistically insignificant".
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sg
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PostPosted: Tue Mar 10, 2009 9:50 am    Post subject: Reply with quote #74   
SlingBlade wrote:

There are plenty of things that we do that have almost no impact on safety but are done anyway because logically it could save a life. We have a backup strap even though you could easily go 10,000 flights without ever breaking the hang strap, especially if you replaced it frequently. In aerotow people carry hook knives even though it is very unlikely both a primary and secondary release would fail. We all carry parachutes even though non-acro pilots are very unlikely to ever deploy.


I would say you cant equivocate the above with the basetube discussion.
We have plenty of examples of people deploying chutes that saved their lives.
Probably every single year.

People started flying with backup straps, hook knives and parachutes because people were actually dying. Has this occurred with the basetube method??? Are we saying that 10+ years is too short of a time period to determine this?


Quote:

But at some point someone probably had a close call (or worse) and decided it was worth having that extra precaution. Even if it was "statistically insignificant".


Well, there is "feel good voo doo" and their is real acceptable risk.
Race car drivers drive with helmets inside their cars.
Do you, on the freeway? Why not? Shouldnt you, even if it was "statistically insignificant" ???? Logically, it very clearly could save your life.

Again, id rather let the data speak for itself then make guesses.
I dont wear a helmet inside my automobile when driving.
...and I dont wear a pink ribbon on my helmet because I suspect it helps.

This incident made me re-evaluate whether or not this practice is actually dangerous or not. Until new data is presented, I can only conclude its another pink ribbon superstition. We can argue and debate all day long, but in the end the data supports our position or it doesnt.

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chinchan
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PostPosted: Tue Mar 10, 2009 1:22 pm    Post subject: Reply with quote #75   
Sooner or later... I feel this topic should be buried before it gets anymore out of hand...
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PostPosted: Tue Mar 10, 2009 2:44 pm    Post subject: Re: What happened here? Reply with quote #76   
IcRus wrote:
what would keep them from grabbing the base tube in a panick attack during rollout?


Safety Records and Pilot experience notwhitstanding - the above statement makes no sense.

From my own humble experience - a person experiencing a real panic attack will usually
squeeze tighter anything that they are already grabbing firmly.

And statistically speaking If you have a passenger experiencing a panic attack wouldn't
you rather have them already firmly grasping something else from the start instead of the control frame?

Sounds like the tired argument of "if it an't broke dont fix it"

I rather myself be with the "relentless pursuit of perfection" crowd when it comes to flying.

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PostPosted: Tue Mar 10, 2009 3:07 pm    Post subject: Reply with quote #77   
i learned at wallaby and i told my little brother thats where he was going to learn to fly.
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