Cambridge 302 Question

On Apr 20, 12:05*am, Darryl Ramm wrote:
On Apr 19, 3:53*pm, wrote:



On Apr 19, 1:51*pm, wrote:

I've have a Cambridge 302 in my glider. *I have the setting at 0%
since I have the total energy probe fed into it, along with the pitot
tube and static port. *The te tube is split just behind the cockpit as
recommended. *The static and pitot are split or "t'd" behind the
instrument panel.

When I push hard forward to increase airspeed.....the cambridge VSI
goes up to 10knots positive.

Then when I pull back to bleed off airspeed.....the VSI goes down to
10 knots negative.

The manual says to increase the % , but doesn't say how much.

Another option is to not use the te tube and put it at 100%.

The te probe in my glider is located about 6 feet behind the wing spar
on the top of the fuselage. *It's not the conventional spot on the
rudder.

Any thoughts? *Recommendations?

Scott,

Go to screen 10 on the CAI 302 and note *the indicated airspeed. *You
may have the Pitot & static switched. *Which mode are you in when this
happens climb or Cruise?

At TE probe requires that the Compensation be set at 0%. *The Probe
supplies the Compensation.

Richardwww.craggyaero.com

And that was a clever suggestion - pitot and static swapped and the
302 in cruise mode and configured to be a super netto or netto vario
so the indicator relies on the airspeed....

Note to Scott - the altimeter display on the 302 home screen has
nothing to do with the static plumbing, it senses cockpit ambient
pressure, so is cannot help debug this question. So try what Richard
suggests.

Darryl

If that turns out not to be the problem a simple pressure check for
leaks is in order.

9B