GROUND SPEED
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ANY SUGGESTION WHERE I CAN FIND VIDEOS ON HOW TO SET MY DED TO SHOW MY GROUND SPEED AFTER MY LANDING ?
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On the ICP just press ‘LIST’ and ‘6’.
Why would you need a video for that?
Check out the Dash 1 manual ICP chapter.
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And remember, if the maximum speed is “violated”…
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BMS Training Manual, 4.33 (ver1.0),
pg 21 … ‘Rolling on the ground these probes are ineffective and the HUD cannot display your ground-speed’
… 'Maximum ground-speed might change from one country to … ‘but generally you should stay below 25 kts in straight lines and 10 kts in turns.’
… ‘The INS page of the DED is the only way to get this information on the ground. Push ICP 6. Your ground-speed is given in the
right corner of the DED …’pg 24 … ‘Rotation speed is the point at which … rolling to flying. It is a very important parameter you should know for every take-off.’
I’m new and working my way through the Training Manual’s Ramp Up procedure…
My understanding (from the Training Manual, pg 25) is that rotation speed is anywhere from (127 – 165 kts) depending … and that
it is a very important parameter. So my question is … ‘why doesn’t ICP 6 display my ground-speed on the DED when I taxi?’
I have searched the forums. It seems the GS indicator on the DED works for others. I tried testing to see if maybe there was a limit under which
the GS indicator doesn’t kick in. I thought I had the jet going pretty fast, but GS indicator still never showed up on the DED.
And I did check out the dash 1 manual … Please throw me a rope here, I’m drowning … -
you certainly don’t need groundspeed while taking off
you do need ground speed while taxiing - matter of fact that’s obviously the only speed available to you.As you accelerate on the runway for takeoff, the Speed in HUD will become active (usually above 60-80 kts)
because the airflow on the probes start to be enough for a valid speed reading, indicated or CAS.That’s what you use for take off, the airspeed either in the HUD or on the machmeter. NOT to groundspeed on DED
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Personally I know any RL pilot using the GPS ground speed for taxing except maybe huge liners like A380 or 747 which also use cameras for taxi.
On fighter jets, you just have to taxi slowly enough to allow a quick stop if needed. They just use their eyes, that is all. Using GPS speed is mostly a flight simulation deviance from ppl used to refer to their speedometer when driving a car.
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Well in a real jet while you’re learning, there is an experienced guy in the back telling you to slow down
that’s a luxury we don’t have in BMS, so I agree it’s a deviance, but not from ppl used to have speed in their cars, but because it’s the only tool at our disposal for young inexperienced pilots to generate a mental picture of the right speed early in their training.As always, a sim is something living on it’s own, with it’s own rules and where REALITY is not always relevant, because of the SIM specific compromises and environment
That’s said when I taxi for real, I don’t need to refer to my speed, because I have a feeling for the motion speed. I can sense the runway bumbs in my back, I hear the aircraft rolling (even with my headset on), I feel the aircraft vibrating ….
Sitting in my cockpit at home, I don’t move, I don’t feel the taxi bumbs, I get no vibration so sense of speed is zero hence why we need data to replace sensitive feedback (as always in a sim environment -
@Red:
Well in a real jet while you’re learning, there is an experienced guy in the back telling you to slow down
Good point Red Dog.
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@Red:
Well in a real jet while you’re learning, there is an experienced guy in the back telling you to slow down
that’s a luxury we don’t have in BMS, so I agree it’s a deviance, but not from ppl used to have speed in their cars, but because it’s the only tool at our disposal for young inexperienced pilots to generate a mental picture of the right speed early in their training.As always, a sim is something living on it’s own, with it’s own rules and where REALITY is not always relevant, because of the SIM specific compromises and environment
That’s said when I taxi for real, I don’t need to refer to my speed, because I have a feeling for the motion speed. I can sense the runway bumbs in my back, I hear the aircraft rolling (even with my headset on), I feel the aircraft vibrating ….
Sitting in my cockpit at home, I don’t move, I don’t feel the taxi bumbs, I get no vibration so sense of speed is zero hence why we need data to replace sensitive feedback (as always in a sim environmentThanks to Andre and the Jetseat, we can have that sensation of speed on the ground.
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yes, that’s right Zeight.
But compared to real life, the bumps from Andre are too constant. Real life is much more irregular. Bumps in Andre software don’t come from the taxiway in BMS, they are just fake bumps regularily placed.
It does give you a nice sense of speed though. Although imho they are way too close to each other. when you’re 20 kts, you vibrate like a train, that’s giving you way too much speed sensitivity (imho) -
It would be nice to see more inconsistency in the groundspeed display actually. I understand its not unusual to have it think you rolling at 1 knot even when stationary.
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All very true, I do however at times bring GS up on the DED for long taxyways.
Was it the F-18 that was prone to lift a wheel ? Its been a while.
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Instead of using the INS page, I use the GPS page (list, 0, 6) to get my ground speed and the current time. Helps me not to miss the take off time