Notes from Glynde Coaching Meeting 26/5/11 - Thermalling

Hairy Dave's picture

Some notes from our thermalling discussions. see attachment.

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Vario settings

Dave,

Unfortunately I missed the talk but I was briefed by Barry Davis and I have read your notes ... very interesting and I am looking forward to trying out your tips and suggestions.

I have a Flymaster Vario B1 Flightanaliser ... and I'd like to set it up in a more sensitive mode ... but I am struggling to understand what values I need to use in what fields. Can you assist or point me in the right direction.

Thanks

Peter Connolly

steveu's picture

Be sure before you fiddle

Peter wrote:

I have a Flymaster Vario B1 Flightanaliser ... and I'd like to set it up in a more sensitive mode ... but I am struggling to understand what values I need to use in what fields. Can you assist or point me in the right direction.

Is that a B1 or a B1 Nav?

I've just spent 3 months with one of these for a review, and I'd say that the stock settings are very close to ideal.

The unit has been designed by accomplished pilots who know what they doing. I'd take their advice rather than struggle with not knowing what to put where.

However, if you wish to fiddle, let's think what we want to achieve and what we mean by more sensitive:

  1. Do we want the vario audio to start at a lower setting?
  2. Do we want the vario to respond faster to lift and sink changes?
  3. Do we want the vario audio to change tone more for less changes in lift?

The first thing to do is to ask Manuel, everything is in Manuel and it a very written one for the kit.

Flymaster B1 Manual

Flymaster B1 Nav Manual

For the B1 Nav, you need to look in Sections 8.3 and 8.4 of the manual.

Point 1 is easy to change but you may then get tone for lift that is too weak for you to work.

Point 2 means you will get more noises but it's more likely the lift will be too small or weak for you to work.

Point 3 means that the increase in pitch may top out before you get into the strongest part of the thermal so the value of the audio is reduced.

If you really want it overall more sensitive (B1 Nav) reduce the value in the Damper setting in the Advanced Features menu to a figure lower than 8, which is default.

However, I would be more inclined to spend the time reading the manual to see just how clever the Flymaster team is rather than tinker. If you must f*ck about with it then note down all the default values before you start. Also, check PG Forum for a very in depth thread about both B1 and B1 Nav. Also, default values are in the manual.

PS - After 3 months the only thing I changed was the sink alarm from -2m/s to 1.3 m/s.

SteveU.
HG/PG.

Not fiddling!

Steve,

Thanks for the detailed reply and thanks to Manual too.

I have the Flymaster B1 (not the Nav) and following your input I reckon I'll only change the sink alarm from -2m/s to (I presume -) 1.3m/s

Peter C

JTurczak's picture

thermalling - a walk in the park??

A great talk and the hands on approach in the play ground was a great way to make it all a bit more real. And what a bonus - notes as well.

I am now reading my manual for my vario to find out how to better tune it and I have got lots to practice next time I am out.

Thank you very much

John Porter's picture

Hairy Dave Talk

Thanks Dave for a very informative, useful and entertaining talk on Thermalling.

barrywdavis's picture

Thermalling

As a CP+20 I've heard whispers of something which is NOT top to bottoms (if paragliding was only that I would still do it) and NOT ridge soaring but of a black art that lifts you into the sky without the aid of strings, balloons or props. Read a little on the subject but understood less. Then a chap called Hairy Dave (didn't look particularly hirsute to me, is it the way he flies?), without the aid of lantern slides or powerpoint painted word pictures of the what, why, where and how so well that a veil has been lifted from my eyes. A superb presentation, clear, humorous and riveting. Ta Dave. And I'll try to keep out of everyone's way until I really know what I'm doing.

Thermalling

Agree 100%. It's always good to go along and hear someone else's take on the subject. Well done Dave. Very useful to us both. Cant wait to put it into action.

David and Alison

Worms

Sorry I missed this. What's wormholing?

Wormholing

Venturing forwards into a line of lift, making appropriate small inputs of weightshift/brake to give you the best climb prior to circling and centring the thermal.

Regards Alison