[Aus-soaring] Another fatality

[opsworx opsworx]

Goondiwindi fatal 

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[Aus-soaring] Vale Bill Dinsmore

[opsworx opsworx]

Regret to advise following received this morning.  


"For those who remember Bill Dinsmore, CFI of Southern Cross during the 
1980's, we received some sad news from his wife Lorraine today ...
"Bill ... jumped ship today* around five pm after politely but firmly 
declining to wear oxygen mask any more when being treated for mystery 
ailment regarding blood platelets. Retained his considerable collection 
of marbles till the end, grudgingly handed over apple ID and departed. 
No funeral or service: mentioned you specifically yesterday and wished 
you
birthday tidings for August. No calls to me please as I am hiding under 
the bed pretending nothing's happened."

*wednesday
Obviously some of you will wish to send condolences but please respect 
Lorraine's wishes & keep contact written rather than voice for the short 
term."



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Re: [Aus-soaring] Contact details for Conrad Bolton

[opsworx opsworx]

Justin,

talk to Laurie Hoffman. He has contact details.

Regards


Peter Heath.

-- Original Message --
From: "Tom And Jane" 
To: "Discussion of issues relating to Soaring in Australia." 


Sent: Friday, 26 May, 2017 At 9:02 PM
Subject: Re: [Aus-soaring] Contact details for Conrad Bolton

Conrad was running a crop spraying business at Wee Waa.

Tom

Sent from my iPhone


On 26 May 2017, at 8:10 pm, Justin Couch  wrote:

Trying to find the details for Conrad. Former mayor of Narrabri but I 
can't dig up his contact details anywhere that aren't linked to his 
former local government account. He apparently owns the wreck of 
(ex-)HDC, a DG202 that's currently sitting in an abandoned trailer at 
Camden.


--
Justin Couch http://www.vlc.com.au/
Java 3D Graphics Informationhttp://www.j3d.org/
LinkedIn http://au.linkedin.com/in/justincouch/
G+   WetMorgoth
---
"Look through the lens, and the light breaks down into many lights.
Turn it or move it, and a new set of arrangements appears... is it
a single light or many lights, lights that one must know how to
distinguish, recognise and appreciate? Is it one light with many
frames or one frame for many lights?"  -Subcomandante Marcos
---
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Re: [Aus-soaring] Battery shipment

[opsworx opsworx]

Hi Bernard,
you cannot just add batteries to a shipment as they are classified as 
dangerous goods.



 They need to be correctly packaged and declared otherwise it may cost 
you a significant amount AND you won't get the batteries either. 



Regards


Peter Heath.


-- Original Message --
From: "Future Aviation Pty. Ltd." 
To: "Discussion of issues relating to Soaring in Australia." 


Sent: Thursday, 6 Apr, 2017 At 2:53 PM
Subject: [Aus-soaring] Battery shipment
Hello all

I’m trying to get some batteries from Germany and Australia and I would 
like 

to hear from anyone who is prepared to have them included in his or her 
shipment.


Any replies please to: ec...@internode.on.net 
 .



Thank you!


Bernard 
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Re: [Aus-soaring] weather models

[opsworx opsworx]

Mike, 
sitting in the disaster coord centre. have a look at the mackay radar. 
Classic high intensity cyclone with the hole in the middle. 



Peter Heath  

-- Original Message --
From: "Mike Borgelt" 
To: "Discussion of issues relating to Soaring in Australia." 


Sent: Monday, 27 Mar, 2017 At 7:24 PM
Subject: Re: [Aus-soaring] weather models
 Ooh look, the models are converging less than 15 hours before 10am 
tomorrow! Real measured updates to re-initialise obviously work.
 Note however the difference between the models on maximum windspeed 
and extent of high wind area. It will be interesting to see the further 
convergence after more observational input updates.

 Mike



 At 03:03 PM 3/27/2017, you wrote:
 Those who have a touching faith in weather models might like to look 
at www.ventusky.com   and check where the 
cyclone will be at 10am tomorrow and what the wind speeds will be around 
it.

 The redo with the other 2 models.
 Mike



 Borgelt Instruments - design & manufacture of quality soaring 
instrumentation since 1978

   www.borgeltinstruments.com 
 tel:   07 4635 5784 overseas: int+61-7-4635 5784
 mob: 042835 5784 :  int+61-42835 5784
 P O Box 4607, Toowoomba East, QLD 4350, Australia
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 Borgelt Instruments - design & manufacture of quality soaring 
instrumentation since 1978

   www.borgeltinstruments.com
   tel:   07 4635 
5784 overseas: int+61-7-4635 5784

 mob: 042835 5784 :  int+61-42835 5784
 P O Box 4607, Toowoomba East, QLD 4350, Australia   
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Re: [Aus-soaring] AHRS and phone apps

[opsworx]

Ron, 
This is the new kiwi MEL relief  for freighter crews. Replaces the whole panel. 
Hadn't you heard??
 

Pete


 Ron Sanders  wrote: 

=
So guys what is the latest re gyro driven artificial horizons for smart
phones either from within the device or as per

 https://www.youtube.com/watch?v=TqvVgve5ctM.

Ron

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Re: [Aus-soaring] Jantar aileron pin local machinists?

[opsworx]

Jsutin, 

what's your phone number. I have a solution for your machining.

Regards

Peter Heath. 



 Justin Couch  wrote: 

=
Last year we had some pins made up for a Jantar 2 aileron drive from AOG 
Specialists up in Coffs Harbour. I would like to get some more made up, 
however emails are now bouncing and their phone number is disconnected.

Looking for some recommendations, preferably around the Sydney area, 
though not mandatory, for someone that could make some more up. I have 
all the paperwork in place, just need someone to do the work.

-- 
Justin Couch http://www.vlc.com.au/
Java 3D Graphics Informationhttp://www.j3d.org/
LinkedIn http://au.linkedin.com/in/justincouch/
G+   WetMorgoth
---
"Look through the lens, and the light breaks down into many lights.
  Turn it or move it, and a new set of arrangements appears... is it
  a single light or many lights, lights that one must know how to
  distinguish, recognise and appreciate? Is it one light with many
  frames or one frame for many lights?"  -Subcomandante Marcos
---
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Re: [Aus-soaring] hydrostatic testing of O2 cylinders

[opsworx]

Ron, 
John Cameron at bankstown can do them and refill. just ship as DG or throw it 
in the back at work with the paperwork.  

Peter



 Ron Sanders  wrote: 

=
Can anyone tell me where to get my cylinder tested in the Melbourne area
please??

Ron

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Re: [Aus-soaring] Any towballs heading east from Perth?

[opsworx]

Justin, consider putting it on the train to Parkes then picking up. Very cost 
effective.  I had looked at bringing a truck from Perth and it was cheaper than 
the fuel let alone other costs with less potential for damege, wheel bearings, 
chassis cracks  etc. .  

Peter Heath 




 Justin Couch  wrote: 

=
Purchasing a glider in WA and would like to bring it east. I'm in 
Sydney, but happy to meet anywhere over to Adelaide/Melbourne etc. 
Trailer is an old Komet with a single seater in it, and in OK condition. 
Not ready to bring the trailer today, but anywhere (probably) 2-6 weeks 
from now would be ideal. Obviously, will cough up some cash for the fuel 
etc.

-- 
Justin Couch http://www.vlc.com.au/
Java 3D Graphics Informationhttp://www.j3d.org/
LinkedIn http://au.linkedin.com/in/justincouch/
G+   WetMorgoth
---
"Look through the lens, and the light breaks down into many lights.
  Turn it or move it, and a new set of arrangements appears... is it
  a single light or many lights, lights that one must know how to
  distinguish, recognise and appreciate? Is it one light with many
  frames or one frame for many lights?"  -Subcomandante Marcos
---
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Re: [Aus-soaring] Stitching together small waves to go XC

[opsworx]

A while ago we were working with racal on a portable transponder to allow 
access outside 30nm Sydney between the Bindook - Sydney track and the Sydney - 
Katoomba track. Plan was to tow west from Camden into the secondary around The 
Oaks - Oakdale, climb, then explore above the inbound and outbound traffic. 

If you can get over the SY -KAT traffic a run further north would be good fun.  

Maybe one day when Dick gets the airspace redesigned. 

Peter Heath.






 Mike Borgelt  wrote: 

=


I've flown in wave in an easterly on the Darling 
Range from the old Perth Gliding Club field at 
Byford. Also seen wave clouds over Perth city in 
a South Easterly when I was a BoM forecaster. I 
think under the right conditions it ought to be 
possible to fly from RAAF Pearce or Gingin just 
to the north of there(the range peters out from 
there north) to Donnybrook and back. Be a fun 
flight. May also be possible in a westerly by ridge soaring.

Unfortunately we have lots more controlled 
airspace in Australia and there is in the US.

Mike




At 12:55 AM 5/4/2016, you wrote:
>Â  At Narromine (2007?) a few people were 
>interested in wave XC so we had a chat. I 
>thought it would be advantageous for Australian 
>wave sites to put their heads together to map 
>the local wave locations along the ranges, with 
>the idea of putting together longer wave XC flights.
>Wave doesn't just occur in New Zealand, the 
>Andes and Sierra Nevada. There have been many 
>wave flights in Australia but mostly on a fairly local scale.
>Â  In California, Ramy Yanetz and Kempton Izuno 
>have been putting ideas together for flying in 
>the coastal ranges, which are about as tall and 
>inconsistent as the Great Dividing Range.
>Â  Kemp had a very nice flight the other day in 
>FNX (Phoenix), an ASH25 which had burned when 
>the rear canopy was left open, and was rebuilt. 
>He documented the forecast and flight on the 
>Williams Soaring Center newsgroup. Now it has 
>been published in the Valley Soaring Association 
>newsletter. One fantastic aspect is the 
>overflight of San Francisco Class B airspace and 
>downtown San Francisco. There are video links.
>Â  It's too easy to think this sort of thing can't be done.
>Jim
>
>http://www.valleysoaring.net/?page_id=3229
>
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Borgelt Instruments - design & manufacture of 
quality soaring instrumentation since 1978
www.borgeltinstruments.com
tel:   07 4635 5784 overseas: int+61-7-4635 5784
mob: 042835 5784:  int+61-42835 5784
P O Box 4607, Toowoomba East, QLD 4350, Australia 
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Re: [Aus-soaring] Comparing accident rates

[opsworx]

Be aware that the accident reporting system some years ago going into the GFA 
system was significantly deficient.  In one state reporting was running at 
about  50 -70% of the claims rate.  

If we had not seen a change in the culture,  discussions were going to be taken 
with the insurance industry to obtain actual claims data.   


 Peter Heath 





 Teal  wrote: 

=


On 10/03/2016 6:50 PM, Texler, Michael wrote:
>>   I've not seen them described that way in the road safety literature that 
>> I'm familiar with. How would that work? If the number of accidents is on the 
>> Y axis, what variable would the X axis have? If we go with road accidents 
>> (my field of expertise) it can't be age/driving experience, because the 
>> accident stats in NO way form a poisson distribution  when age/experience is 
>> your X-axis variable. (Actually, road prangs by age/experience gives you 
>> more of a U-shaped curve.) Also, rate of accidents (be they road prangs or 
>> glider prangs) aren't constant over time (as required for a poisson 
>> distribution to be your distribution of
> choice) - they vary by time of day, for fairly obvious reasons, as well as 
> other things (day of the week, long weekends, etc etc).
>
>> You appear to be approaching the issue from a rather different statistical 
>> approach to the ones I'm familiar with. Could you spell out your 
>> approach/methods in more detail? It's always interesting to hear how folk in 
>> other fields approach problems I'm familiar with. :-)
> I am approaching it as counting events occurring over a duration of time 
> (analogous to say counting disintegrations per second for radioactive decay).
>
> Y axis would be the accident rate with any metric that you care to choose 
> (i.e. accidents per 1,000 hours flown, accidents per 100km travelled, 
> accidents per 1,000 flights etc.).
> Y axis would be a duration of time, i.e over one year, over 10 years, over 
> 100 years.
>
> Then it is a case of using the appropriate test to compare the two groups 
> (null hypothesis being that the accident rate between two groups is the same).

I'm afraid I'm still not with you. *Which* two groups, exactly? 
Displaying all recorded traffic accidents over time in that way will (if 
you use Australian data) give you a single line that (depending on the 
period covered, but lets go with "the last 20 years") trends downward 
over time. Who are you comparing again whom, in your example?

> A fairly blunt measure granted.
>
> Given your experience with road accidents analysis, how would you approach it?

Well, it would depend on exactly which question was being asked.  If we 
were interested in the numbers of accidents had by drivers of different 
ages, my previous example (up in the first para quoted above) was a 
simple descriptive graph showing difference in number of accidents by 
age, for a set amount of time (a year, say). Or we could do it another 
way, and have a graph with dates along the X axis, and separate lines 
(one for each age group, maybe 16-25, 26-35 and so on) showing how 
accident numbers have changed over time for each age group, if we were 
interested in seeing if there were any obvious differences in crash 
rates over time by age group.

Or, if the question whether a particular time of day is more crash-prone 
than other times, we could graph all the accidents occurring in the last 
year with the X axis showing hours of the day (midnight-0200, 0201-0400, 
etc). Or whatever.  All this is pretty basic stuff. We could go on from 
there, and report means and standard deviations for age groups/time 
periods/whatever of interest, and see if anything leaps out in terms of 
obvious differences or trends. But that still isn't going to get you 
anything you might want to discuss using null hypotheses or p values ... 
for that you really do need actual *inferential* statistical tests, with 
specific groups that you are comparing. And this broad-brush descriptive 
approach isn't going to give you that. You need to narrow it down a bit.

So: lets come back to the original topic that started all this - glider 
accidents. How would I approach that?

Well, first would be deciding exactly what question I want an answer to. 
Do I want to know if the glider prang rate is increasing or decreasing 
over time? Or do I want to know whether more crashes are happening in 
comps than in cross-country gliding?  Or how the glider crash rate as a 
whole compares with the number of motorcycle crashes for a given period?

Lets go with the last one, since we were also discussing that earlier. 
Firstly, getting a good source of data for *both* of those elements in 
the comparison is tricky. So I'm gonna handwave past that and assume 
that we have good quality data on both of these, including exposure data 
(i.e. how much time was spent per pilot/cyclist actually flying/cycling 
during that time period), because exposure is critical for topics like 
this: it means absolutely not

[Aus-soaring] Pete Cesco on TV

[opsworx]

Well done  to Pete  Cesco on channel 7 Adelaide interview! 
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Re: [Aus-soaring] Thank you

[opsworx]

What ever CIG gases is now called! BOC???. and they will make it up at an 
expensive price. 

Peter Heath. 





 Noel Roediger  wrote: 

=
How much do you need.

Noel

-Original Message-
From: Aus-soaring [mailto:aus-soaring-boun...@lists.base64.com.au] On Behalf Of 
Future Aviation Pty. Ltd.
Sent: Tuesday, January 26, 2016 3:34 PM
To: Discussion of issues relating to Soaring in Australia.
Subject: [Aus-soaring] Thank you

Hello all

Please let me start by thanking the many persons who have helped to resolve the 
aircraft plywood issue.
Your advice has put me on the right track. 

Since I have run into another problem, namely the procurement of ⅛’ copper 
piping for oxygen systems.
If anyone knows of a source of such copper tubing in Australia, please let me 
know.

Kind regards and many thanks for all your trouble in advance!!!

Bernard 

  
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Re: [Aus-soaring] Aircraft plywood

[opsworx]

Bernard, 

Mr Plywood sell birch aircraft grade plywood. 
  

Peter

 emillis prelgauskas  wrote: 

=
try SA Plywood on Magill Rd
they have been able to provide aircraft grade ply in some circumstances
Emilis


On 20 Jan 2016, at 3:28 pm, Future Aviation Pty. Ltd.  
wrote:

> Good morning all
> 
> Nowadays most aircraft are made of composite materials and therefore I find 
> it 
> very difficult to obtain some 6 mm thick aircraft plywood.
> 
> For a special project I require six (6) small pieces of about 250mm x 100 mm. 
> Can anyone help by making some off-cuts available or by selling me some big 
> enough left overs?
> 
> Kind regards to all
> 
> Bernard Eckey
> ec...@internode.on.net
> Ph. 08 8449 2871
> Mob. 0412 981 204
> 
> PS: I could glue two sheets of 3mm thick aircraft plywood together if someone 
>   can make some 3 mm plywood available.  
> 
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Re: [Aus-soaring] Wing frequency Procedure

[opsworx]

The test if done properly can also pick up loose/worn  wing root bearings and 
for long wing multi panel wings ( think nimbus) worn bushes. some undercarriage 
faults will also show up. in worst case you can hear the clunk of the loose 
bits.  

for the old IS28 if the centre wing joining cones were not tight the wing shake 
would show it up as not only did the frequency change but from the tip you 
could see independant movement of each panel and the fin. more like a shudder 
than a smooth flex of the wing.   

Peter Heath   
Not current long wings pilot. 


 Mark Newton  wrote: 

=
On 1 Dec 2015, at 9:42 PM, Justin Couch  wrote:

> There is also one case where it didn't (Bathurst's DG300 that delaminated the 
> spar caps from the wing didn't pick up a freq change, but the tap test did).

Interesting - I’ve spoken to Brits who had never heard of the tap test and were 
a bit bemused at Australia’s seeming obsession with it when they found out 
about it.

Nice to know that it might be useful for something :-)

  - mark


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