I have them, these have been available for a number of years, "flying hours
counters" automatically switches on when airspeed increases to 60 km. I
suspect if it's on the ground and winds are over 60 km/h it should be tied
down and the pitot already covered.
just see my website page
http://www.wingsandwheels.com/aircra...ompass_air.htm
I do keep these in stock and have sold several.
tim
Please visit the Wings & Wheels website at www.wingsandwheels.com

"Paul Remde" wrote in message
...
Hi,

I have a customer that has 2 2-seat (ASK-21) gliders for a commercial
operation. He is trying to find for them "Hobbs meters" with switches
that start allow the meter to record time only when in flight (over some
airspeed threshold). Of course, it would not be ideal if it recorded when
on the ground on a windy day.

Any suggestions?

I found some Hobbs meters with part number 85000C12 which operate on 10 to
30 VDC. But the switch is the tough part.

Best Regards,

Paul Remde
Cumulus Soaring, Inc.


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