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Tactile Warnings.  
User currently offlineHAWK21M From India, joined Jan 2001, 31684 posts, RR: 56
Posted (5 years 6 months 3 weeks 3 days 16 hours ago) and read 2750 times:

Apart from Aural & Visual warnings.What would constitute tactile warnings?
regds
MEL.


Think of the brighter side!
10 replies: All unread, jump to last
 
User currently offlineStarlionblue From Greenland, joined Feb 2004, 17040 posts, RR: 66
Reply 1, posted (5 years 6 months 3 weeks 3 days 16 hours ago) and read 2749 times:

Aural and Visual are not tactile.  Wink

My guess is the only tactile warnings are feedback through controls like yoke, pedals, throttle.



"There are no stupid questions, but there are a lot of inquisitive idiots."
User currently offlineHAWK21m From India, joined Jan 2001, 31684 posts, RR: 56
Reply 2, posted (5 years 6 months 3 weeks 3 days 15 hours ago) and read 2746 times:



Quoting Starlionblue (Reply 1):

Aural and Visual are not tactile.

What I meants was" apart from warnings that are of Aural & Visual".What warnings are tactile ?
Rephrased same.  Smile
regds
MEL



Think of the brighter side!
User currently offlineBoeing767mech From United States of America, joined Dec 2000, 1027 posts, RR: 3
Reply 3, posted (5 years 6 months 3 weeks 3 days 14 hours ago) and read 2736 times:

A stick shaker would be a tactile warning.

David



Never under-estimate the predictably of stupidty
User currently offlineLongHauler From Canada, joined Mar 2004, 4988 posts, RR: 42
Reply 4, posted (5 years 6 months 3 weeks 3 days 11 hours ago) and read 2707 times:

Also the feel of various knobs in the cockpit are made to feel different. But, probably more of a tactile reminder, than a warning.

For example, the Altitude select knob will feel different from the speed knob or the V/S knob.



Never gonna grow up, never gonna slow down .... Barefoot Blue Jean Night
User currently offlineKELPkid From United States of America, joined Nov 2005, 6388 posts, RR: 3
Reply 5, posted (5 years 6 months 3 weeks 3 days 6 hours ago) and read 2617 times:

If one were to fly a GA plane with unboosted controls on the back side of the power curve (low airspeed, high power required to maintain flight), the controls feel very "mushy" (little force required to move the controls around), because the normal aerodynamic loads on the control surfaces that cause the pilot's controls to resist movement are greatly reduced. This is an example of a tactile warning (in this case, that you are near a stall and should probably take action to increase power and reduce angle of attack).

The normal reaction for a plane with unboosted controls is that control forces tend to increase with the increase in speed.



Celebrating the birth of KELPkidJR on August 5, 2009 :-)
User currently offlineMoose135 From United States of America, joined Oct 2004, 2323 posts, RR: 10
Reply 6, posted (5 years 6 months 3 weeks 3 days 3 hours ago) and read 2569 times:



Quoting LongHauler (Reply 4):
Also the feel of various knobs in the cockpit are made to feel different. But, probably more of a tactile reminder, than a warning.

Which is why the landing gear handle has an end shaped like a wheel, and the flap handle has an airfoil shape. (At least that was the way they were when I was flying with Orville and Wilbur!)

I remember when I flew a "complex" piston (coming from a KC-135 it didn't seem too complex, but...) the mixture, throttle and prop controls all had different shaped knobs on the ends as well.



KC-135 - Passing gas and taking names!
User currently offlineTdscanuck From Canada, joined Jan 2006, 12709 posts, RR: 79
Reply 7, posted (5 years 6 months 3 weeks 2 days 6 hours ago) and read 2455 times:



Quoting HAWK21M (Thread starter):
What would constitute tactile warnings?

Stickshaker and stickpusher would definitely fall in that catagory. In a FBW airliner with force feedback, you could consider the whole backdrive system a tactile warning (or at least a tactile feedback).

Quoting Moose135 (Reply 6):
Which is why the landing gear handle has an end shaped like a wheel, and the flap handle has an airfoil shape. (At least that was the way they were when I was flying with Orville and Wilbur!)

Still true on Boeing, at least through the 787. Thrust levers, flap lever, speedbrakes, gear handle, fuel cutoff, trims, and the light switches all have very distinct knobs so you can recognize them by feel.

Tom.


User currently offlineJetlagged From United Kingdom, joined Jan 2005, 2556 posts, RR: 24
Reply 8, posted (5 years 6 months 3 weeks 23 hours ago) and read 2296 times:



Quoting Tdscanuck (Reply 7):
In a FBW airliner with force feedback, you could consider the whole backdrive system a tactile warning (or at least a tactile feedback).

That would apply to any flight control with an artificial feel unit, not just FBW. It's not really a warning, it's normal operation. However if, as on the 777, this force feedback is increased if you go beyond envelope limits then that definitely is a tactile warning.

A different kind of tactile feedback exists on the Airbus FBW, where the sidestick is held in the centre with autopilot engaged requiring a significant extra force to move it (and so disengage the autopilot)



The glass isn't half empty, or half full, it's twice as big as it needs to be.
User currently offlineSimpilot459 From United States of America, joined Sep 2005, 139 posts, RR: 0
Reply 9, posted (5 years 6 months 3 weeks 18 hours ago) and read 2266 times:

Could you consider buffet before a stall a tactile warning?


Take off: Optional Landing: Mandatory
User currently offlineHAWK21M From India, joined Jan 2001, 31684 posts, RR: 56
Reply 10, posted (5 years 6 months 3 weeks 17 hours ago) and read 2252 times:

I think Stall warning is one tactile warning.
regds
MEL



Think of the brighter side!
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