Call or e-mail them! They respond quickly. I did ask about whether the D10
was usable with an existing pitot, and they said yes - however.
They are considering using the aoa info from the probe to do some airspeed
corrections
which should make the unit more accurate when the a/c is at high alpha.
---From this you can deduce that:
1. The electrical cabling in their website picture is the pitot heater
2. The pitot output is pressure. The probe design is based on work
done at NASA
in the 70s. I'm not sure if two additional lines are run for AOA,
or if raw airspeed is sensed from the sum of two ram port
pressures, and AOA from
the difference. In any case, the sensors are most likely in the
instrument.
They're also using an oven to eliminate temperature sensitivity,
which would probably
make sensors in the pitot impractical.
Shaun
A207
----- Original Message -----
From: "Nick Hammond" <nick.hammond@saabsystems.com.au>
Subject: RE: The Solid-State Gyro PDA
>
> tonyk@kaon.co.nz wrote on 22 October:
> > I had a look at the Crossbow unit at Oshkosh and wasn't very impressed.
> > ...
> > The Dynon developments unit on the other hand is a real work of art and
> > is worth looking at.
>
> Particularly at the price. It would be fun to roll one's own EFIS using
the
> Crossbow AHRS as a basis but at the around the same price as the complete
> Dynon unit, it would be hard to justify.
>
> BTW, can anyone confirm that Dynon's AOA Probe has electrical outputs
(i.e.
> that it only needs additional wiring in the wing rather than more
plumbing).
> Hard to tell from their web site.
>
> Regards,
>
> Nick Hammond
> XS Monowheel 418
>
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