gblwy
Well Known Member
Hi,
I have the original Flightdek D180 and a backup 2.25 inch Winter altimeter.
The D180 shows zero height when the correct barometric pressure is dialled in. When I use the same pressure setting on the Winter altimeter I don't get a zero reading on this instrument. In fact when I adjust the pressure knob on the Winter altimeter to read zero height, there's a difference of about 12 units of pressure between the Dynon and the Winter. I'm using millibars.
The Winter documentation says there is no adjustment or maintenance necessary. They are normally reliable units, used extensively by the gliding community.
Any thoughts on why there should be a constant difference? It's been like that since new, so nothing has changed.
Thanks...Keith
I have the original Flightdek D180 and a backup 2.25 inch Winter altimeter.
The D180 shows zero height when the correct barometric pressure is dialled in. When I use the same pressure setting on the Winter altimeter I don't get a zero reading on this instrument. In fact when I adjust the pressure knob on the Winter altimeter to read zero height, there's a difference of about 12 units of pressure between the Dynon and the Winter. I'm using millibars.
The Winter documentation says there is no adjustment or maintenance necessary. They are normally reliable units, used extensively by the gliding community.
Any thoughts on why there should be a constant difference? It's been like that since new, so nothing has changed.
Thanks...Keith