Wind indicator

[Patexocet]

Hi,

Using the D-100 since 2 years with 100 % satisfaction, I still try to calibrate the wind information who's actualy wrong because of the air speed indication is not correct. My D-100 is installed on a Rans Coyote S6.

I suppose it's a static problem, but the think is that the air speed is correct at 100 km/h, the error increase with the speed.

You will fine below some speed indications.

Air speed indicated on the D-100   -     Real air speed

100 km/h                                           -     100 km/h (correct)
130 km/h                                           -     125 km/h
150 km/h                                           -     140 km/h
200 km/h                                           -     180 km/h

Do you have a possibility to calibrate the air speed on the Dynon ?

Sorry for my poor english I am a poor Belgium guy speaking French ;-)

Pat
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http://www.dreamplanet.tk

 

[dynonsupport]

We do not have a way to correct airspeed. Given that static problems also affect altitude (and affect altitude vs speed), we really suggest you correct the static issue. There have been a lot of posts on this forum and others on how to tweak your static system for better performance.

 

[PhantomPholly]

Yep, unless you bench test the unit and it is calibrated wrong (highly unlikely) it is a static or pitot issue - more often static. Getting the static system can be time consuming and tedious.

Low airspeed = static pressure too high or pitot pressure too low. Confirm that your pitot angle equates to "straight ahead" in high-speed cruise and that there are no leaks. For the static port, you may need to try forcing it to have a slightly different angle to prevent any forward-facing angle that could cause it to get "pressurized," or even relocate the port to a lower-pressure point out of turbulence.

Good luck!

 

[Patexocet]

Thank you both for your help, I will work on it this WE. Pat