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Simviation Forum › Current Flight Simulator Series › Flight Simulator X › Speed at zero

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Speed at zero (Read 534 times)

Dec 10^th, 2011 at 1:05pm

Mackyboy Offline
Colonel
I Like Flight Simulation!
Co. Cavan, Ireland

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Posts: 46

Hi all,
something stange has started the happen in FSX.
The folllowing has happened with 2 different Boeing 737's and a Boeing 767.
When I take off, all is fine, speed etc, then after a couple of minutes the speed shows zero, and the game stops due to overspeed.
On all occasions my speed was set at 250 knots, and on auto pilot.
has this happened to anybody else.

Cheers
MB

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Reply #1 - Dec 10^th, 2011 at 1:36pm

EVVFCX Offline
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Been there done it-well
most of it.
Pontefract, West Yorkshire

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even tho you have turned on autopilot and set a speed, you still have to tell the autopilot to control the throttle, on the autopilot panel you should see a AT or A/T switch, this wil allow the autopilot to control N1 settings.

I'll try and grab a screenshot to show you where, meanwhile have a look at the VC at the top of the main instrument panel.

regards

Steve

May the Mynd be with you.
So far my number of landings either passenger or pilot equal my number of takeoffs, but that is due to change

13/07/11 Passed BMFA Fixed Wing 'A' test.
FSX Gold

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Reply #2 - Dec 10^th, 2011 at 1:53pm

JoBee Offline
Colonel
Better to give than receive.

Posts: 582

pitot heat.

Don't argue with idiots, they drag you down to their level and beat you with experience.

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Reply #3 - Dec 10^th, 2011 at 1:54pm

Groundbound1 Offline
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No, I don't work for Mythbusters...
Michigan, USA

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Pitot tube heat on?

Pitot Tube.

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Reply #4 - Dec 10^th, 2011 at 2:06pm

EVVFCX Offline
Colonel
Been there done it-well
most of it.
Pontefract, West Yorkshire

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Posts: 499

here is the auto throttle, I've never had pitot tube problem, i can bet i forget to switch heater on Undecided

« Last Edit: Dec 10^th, 2011 at 3:07pm by EVVFCX »

May the Mynd be with you.
So far my number of landings either passenger or pilot equal my number of takeoffs, but that is due to change

13/07/11 Passed BMFA Fixed Wing 'A' test.
FSX Gold

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Reply #5 - Dec 12^th, 2011 at 4:23am

F35LightningII Offline
Colonel
I Like Flight Simulation!
Auckland, New Zealand

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Posts: 266

Are you using real world weather?

It is winter so the cold temps might cause pitot tubes to freeze up causing your airspeed to show as 0.

All you need to do is turn on the pitot heat.

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Reply #6 - Dec 12^th, 2011 at 5:07am

Fozzer Offline
Colonel
An elderly FS 2004 addict!
Hereford. England. EGBS.

Posts: 24861

Install an OAT (Outside Air Temperature) gauge in your panel.

That will tell you what the outside Temp is.
If its getting cold and damp, turn on the Pitot Heat/Wing Heaters/Carburettor Heat, etc, as necessary.

I always keep a way eye on the temp outside!

Neither me, nor my aircraft, like getting cold and wet!... Cry

...!

Paul...

...!

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Reply #7 - Dec 12^th, 2011 at 7:55am

Mackyboy Offline
Colonel
I Like Flight Simulation!
Co. Cavan, Ireland

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Posts: 46

Thats it, thats done the trick. It was the pillot heat turned off, coz it is winter.

thank you for you help
MB
F35LightningII wrote on Dec 12^th, 2011 at 4:23am:

Are you using real world weather?

It is winter so the cold temps might cause pitot tubes to freeze up causing your airspeed to show as 0.

All you need to do is turn on the pitot heat.

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