Jan 23, 2005, 2:54 PM
Post #1 of 8
Hm... Not sure how to really post this question. My tunnel experience has been hit and miss. The best days I've had is when the air was warm. When the air is cold it's the worst. I have been told a couple of things. 1. I should wear weights in the tunnel because I'm a bit floaty. 2. The crank the speed up when it's cold.
The weights make sense. In freefall my range seems greater than it is in the tunnel when it is cold. I'm not sure if the cold is causing me to tense up or not.
Can someone confirm that the speed has to be increased when it is cold? Also when wearing a weight belt in the tunnel how much weight to start with?
Hi Ed! They (tunnel operators) don't crank up the air speed when it's cold. The colder air outside makes the air in the tunnel move faster.
Also, if you are cold, then you need to put on warmer inside layers, gloves, etc. in the tunnel. I am one of the most naturally cold people that I know, and I am not cold when FLYING in the tunnel when I wear the proper layers under my suit. (Even my hands were bare, and I was fine.) It's only when waiting to fly that I get cold. However, if you are moving quickly and flying hard, then you should be focused on flying, not on how cold that it is when flying. Neck warmers are the BEST for keeping warm and not tensing up back/neck muscles, thus dearching.
Since I was in the tunnel when you were in the tunnel on Thursday, I have to say that it's been MUCH colder and MUCH faster (Ahhh!!!) in the tunnel on other occasions. I felt that the air and our flying was actually a little slower than other times that I have been in there. (I was flying a little flatter than usual.) If you are thinking that this was fast, then you need to wear weights for sure. I highly recommend them if you are struggling. As you know, I wear them regularly now and don't have a problem flying faster or slower with others. Also, it's awesome flying hard and fast. It feels like so much more of a challenge when the air is cranked! I LOVE IT!!!
As to how much to wear? Personally, I began to wear 6-8 lbs, and I now wear about 12-14 lbs. in the tunnel, usually 12 in the sky. Of course, I weigh under 100 lbs. Maybe you can begin with 6-8 lbs. Take in a weight belt with that amount and extra weights. See what feels most comfortable for you. Mel, Lou, Marie, John, Erin or whomever is coaching you should be able to help you some more with that. Actually, talk with Marie about Bryan's custom-made belts.
Unfortunately, I didn't catch your flying this time, except for a short while when you were doing fall rate drills, because we were going over our sessions while you were flying. I know how much of a perfectionist that you are, so just know that you are doing a great job by working on skills in the tunnel and in Mel's camps. (I, myself, felt rusty because I haven't been flying much, but the short tunnel session was good to get back in the swing of things.) I do hope that we can fly together soon, either in the sky or tunnel. If you come out to Vegas with Amy and the rest of us, then we can all jump at Mesquite this weekend! (Please tell Amy to PM me later tonight or tomorrow. See ya! )
(This post was edited by VanillaSkyGirl on Jan 23, 2005, 3:34 PM)
Simply speaking.... cold air has more lift than hot air...
useless details and semantics
colder air is denser all other things being equal - so in the case of a tunnel, more 'drag'. Some like to call it lift, but that's a whole 'nother discussion and rather pointless.... As far as "cranking up the tunnel" I'm not sure how the balance of lower velocity and thicker air in this case affects the power requirements of a wind tunnel fan since these have opposite effects likely. I'm thinking the delta velocity is the bigger input (since at these pressures/temps/speeds air can be treated as incompressable so the effect of density is just a mass effect seen by the fans), so a cold day would require less power.
Hey Rosa. You look great in the tunnel. Really solid. I do float and really need to throw on some weight. I think it's a mental thing as far as the hesitation. Mel has jumped with me quite a bit and she's like "dude..you need weight." lol We are about to front load the tunnel time for 4 way training and I want to get the most out of it. I'll have Amy PM you tonight.
Ed, you do fly a little flat, but I think it's more a case of being inconsistent. You just need to be in there more. Other than that you did fine while flying with Erin; better than you did with me. Did you see me forget the dive flow several times flying with the girls?
Yeah, about flying flat. I tend to flatten out after about 20 minutes and having even just a few pounds in the belt will allow you to maintain your arch. I learned that while flying with Pat and Dom with me being the floaty one.
Rosa, you are an impressive tunnel flier. You fit right in on the 4 way with Erin, Marie, and Mel.