and bothering them unnecessarily wastes time for all
concerned.
Is there any kind of web database that is maintained by glider pilots
for where to get various bits and pieces in each state or nationally ?
Cheers
Michael Derry
Have Fun Flying Safely
PO Box 4103
WEMBLEY WA 6913
g said the above, gliding is a great sport and the setup with free
instruction and the concept of sharing of aircraft is very good.
Do other people see the direction the sport is heading in ? Will it
affect us or future generations ? Do we, or should
some kind of 'Stick too far back warning' once
we are at circuit height.
Michael Derry
WA Pulley Launch Developer
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ion will depend on the C
> > > of G position but this could be dialled in after doing that calculation.
> >
> Anyway, read the article. It is made quite clear that fore and aft
> stick position is all there is to it.
I don't have easy access to the article in &
-gives a smoother launch with better tension control
-better safety record
-etc etc etc
1:1 and 2:1 have long and excellent operating history in the sport while 3:1
has been demonstrated with proven benefits
and offers much promise.'
Michael Derry
Wes
of one of the pieces of rope and acted as a fulcrum
placing much stress on the rope at the edge of the knot.
Has anyone eany other thoughts about knots.it is a big subject ?
Regards
Michael Derry
"Neil Wolthers" <[EMAIL PROTECTED]> wrote:
http://groups.yahoo.com/group/pul
!!!
On Thu, 9 Mar 2006 16:38:44 +1300
"Brett Kettle" <[EMAIL PROTECTED]> wrote:
> Why not splice it?
>
> -Original Message-
> From: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED] On Behalf Of Michael
> Derry
> Sent: Friday, 10 March 2006 5:38 AM
>
ds tied to keep things moving
> when we are busy.
> The knots on our 10mm polyprop rope are usually good for about 20 or 30
> launches compared to to 100plus splices.
> We normally cut out the splices before the start of the next days operations
>
>
> John
>
> ---
> Forwarded by Michael Derry <[EMAIL PROTECTED]>
> From: Haim
> Subject: Re: PULLEY LAUNCH
> --
>
> Hello Michael
> I did.
>
> We are in Israel.
> Our gliding club consists of some 85 members, 11 club gliders, Pawnee PA-25,
> PA-18, 5 privet gliders, 3 pr
-traction issues
-strip length verses launch height
-type of rope and length of rope
-glider type and weight
-what control was there over tension
-where it went wrong and was dangerous
-etc
-etc
-etc
Cheers
Michael Derry
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as you can
and listen to others.
Michael Derry
Have Fun Flying Safely
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not relevant, however there must be lots of other
ways to skin the cat if need be !
Michael Derry
Have Fun Flying Safely
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st.
AUTO CLUBS
-Many modern cars are covered by roadside assistance at free variable
cost while at the gliding site.
What is the alternative
Continue to spend lots of time and money building new winches trying to
match the R & D that General motors offers us effectively for fr
chore ?
Michael Derry
Have Fun Flying Safely
PO Box 4103
WEMBLEY WA 6913
to join go to:
http://groups.yahoo.com/group/pulleylaunch/
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Dear Jeff & John
Many thanks for your leads.
Cheers
MIchael Derry
Western Australia
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ngle strand steel wire
> in the fuselage in the past.
>
> Regards
> SWK
>
> > -Original Message-
> > From: [EMAIL PROTECTED]
> > [mailto:[EMAIL PROTECTED] On Behalf
> > Of Michael Derry
> > Sent: Tuesday, 4 April 2006 1:20 PM
> > To: aus-s
wants to know pls contact me off this list.
Cheers
Michael Derry
http://groups.yahoo.com/group/pulleylaunch/
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facilities and conditions of your
operation, members experience and other relevant info.
Regards
Michael Derry
Hooked on Pulley Auto Launches
join up at:
http://groups.yahoo.com/group/pulleylaunch/
On Tue, 11 Apr 2006 15:04:39 +1000
"Mark Fisher" <[EMAIL PROTECTED]> wrote:
> Summ
club's record keeping system it is relatively easy to
calculate the average launch height.
There are figures and there are figures !
Michael Derry
On Mon, 19 Mar 2007 15:26:55 +1000
Mike Borgelt <[EMAIL PROTECTED]> wrote:
>
> Here's a new towplane:
>
> http://www.wi
r the best deals on fuel
-etc
-etc
The difficulty is that towplanes carry out a demanding task and this
uses lots of fuel.
Cheers
Michael Derry
On Mon, 19 Mar 2007 17:14:42 +1000
Mike Borgelt <[EMAIL PROTECTED]> wrote:
> At 04:12 PM 19/03/2007, you wrote:
> >Mike
> >
Thanks Alan
Those figures look very impressive.
We didn't measure fuel usage when we did the pulley launches, however I
would be surprised if the fuel usage is more than a couple of litres per
launch. Having said that, the jet engine concept looks very exciting, and
aerotow is also a great way to
Check this out
http://www.martin.fl.us/portal/page?_pageid=373,1813272&_dad=portal&_schema=PORTAL
Moving map of aircraft in the vicinity, can zoom in and out, and get
details of each plane by clicking on it !
Michael Derry
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people
who crash do ! The difficulty is, how do we tell someone who is
experienced that they do not have enough knowledge and skill to ever bend
or break any rule ?
Michael Derry
"Stuart & Kerri FERGUSON" <[EMAIL PROTECTED]> wrote:
> We the general GFA member needs
out by W & B people first)
or even taking off their shoes and putting them behind them to help.
So far I have heard a bit of 'Pub Talk' about this subject but nothing
where anybody has a least half seriously tried to qauntify the actual
effect.
Cheers
other makes that used the
> Wortmann profiles will have a slightly different response to CG
> location.
>
>
> I hope this helps a little bit.
>
> Have a merry Christmas and a great soaring new year!
>
> Anthony
>
>
>
> -Original Message-
on their TST motor glider. Does anyone have any info
on this ?
Michael Derry
WA
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of our gliders ?
Michael Derry
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wing at 30 degrees or more).
Doesn't make a lot of sense.
Michael Derry
__
Hi All,
I wrote the attached article and it received a few comments, both on and off
the web.
I should have summarised as follows.
1. If you enter a s
er instances.....
>
> Harry
>
> -Original Message-
> From: Michael Derry
> Sent: Friday, December 26, 2014 11:32 AM
> To: aus-soaring@lists.internode.on.net
> Subject: [Aus-soaring] Spin Training
>
> Hi All
>
> Why is there such a paranoa about maintainin
The report reminds us how useless the ASI is during spins. You are
better off judging speed using the noise levels assessed by your ears.
Why hasn't some instrument maker built a better mousetrap than the one
we have ?
On Sat, 27 Dec 2014 08:56:09 +1030
"Ulrich Stauss" wrote:
> This is a multip
'As highlighted in the British Gliding Association report, the retention
of aft stick could be expected to be the involuntary reaction of the
pilot in such a situation. '
Could be a major reason why people are dying.
No one seems to be able to: measure this, train for it, or stop it
happening.
H
on is factual and what is not, and
then get reasoned unemotional debate is another question.
My two cents worth.
Michael Derry
On Sun, 28 Dec 2014 11:29:44 +1030
stephenk wrote:
> This is a multi-part message in MIME format.
>
noise
-less overheating problems
-less horsepower required
-etc etc etc.
I have started reading up and talking to other experienced glider winch
and auto launch pilots.
Can others who have had experience or ideas about this please give me or
refer me to other sources of information.
Michael
Rob
Great to hear it is working for you.
Could you give some more info about it !
How it is working now ? ie pulley design/rope or cable type/vehicle
type/mechanism
to roll up cable at the end of the day/height achieved on various wind
strengths etc ?
What problems have you had ?
What have yo
y pot rope? (cheaper, less stretchy and more hard wearing than poly
propelyne)
We would be particularly pleased to hear from anyone using a rope winch !
Regards
Michael Derry
Pulley Launch group
Western Australia
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Is there anyone out there who uses some kind of tension measuring device
who can tell me the force in kgs at either end of the rope/cable for a
winch and auto launch at the various stages of the launch ?
Cheers
Michael Derry
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you tried and liked or disliked ?
-what surface are you operating on: ie grass gravel etc ?
Cheers
Michael Derry
Have Fun Flying Safely
PS Hopefully someone from the Gippsland Gliding Club will reply.
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Dear All
Many thanks for all the info posted to me regarding this topic on and
off the list.
Regards
Michael Derry
Have Fun Flying Safely
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Fun Flying Safely
Michael Derry
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pulley arrangement it is possible to wind the rope in
200 km per hour or more if you wish
-tractors can be used if you wish to operate from a farm
-launching using car propelled launches has a better safety record than
winches
Anyone else care to share similar experiences ?
Michael Derry
Western
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