John,
have you any idea how long the batteries last on continuous tracking?
Spot specify not cheap Lithium batteries ($8.95 a pair of AA Lithium
Energisers at my chemist next door) only and we have been discussing
how long they last.
Changing them in mid-air is a bit fiddly and probably dangerously
impairing good look-out.
PeterS
PeterS
John Switala wrote:
Guys
Spot tracking devices have been installed in all gliders in the 18
metre and Open classes for Day 2 of the Australian Multi Class
Nationals being held at Benalla, Victoria.
Yesterday we had a few pilots who forgot to turn on the spots and a
couple of failures due to low batteries, so not all gliders were
shown. The ones that were on the track maps gave us a good look at
what was happening out there!
There are 8 gliders in Open class and 12 gliders in 18 metre.
The link for Open class is:
http://track.glidingmaps.com/event/multiclass09-open/current/display
The link for 18 metre class is:
http://track.glidingmaps.com/event/multiclass09-18m/current/display
Launch time is 2:15pm. Class launch sequence is: Standard, 18M, 15M,
then Open.
The original task set for the day was a 720km fixed task, but the
temperature didn't break the inversion so a delay was called. The B
task was selected but the day again did not prove to be cooperative.
Then the wind changed affecting the runway selection. The gliders
have been re-gridded and a C task determined. The task is an AAT
(Assigned Area Task) of 3 hours duration for all classes in the comp
The task is:
Benalla
Boree Creek - 30 kilometre radius area
Deniliquin - 70 kilometre radius area
Glenrowan - 15 kilometre radius area
Benalla
Minimum distance is 319 kilometres; Maximum distance is 709 kilometres.
Weather forecast is a blue day, temperature 41C in Benalla. Thermal
strengths should be an average of 8-10 knots over the task. Heights
forecast are 10,000-12,000 feet. Wind is currently Northerly to change
in the late afternoon to more westerly.
Browsers to use are Firefox or Safari. Internet Explorer does not
function well.
Thanks to New South Wales Gliding through the Narromine Club for the
loan of their 10 spot devices.
Thanks also to John Wharington and Scott Penrose for the development
effort for glider tracking.
John Switala
Ops Director
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