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Gear Warning



 
 
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  #51  
Old November 17th 05, 10:57 PM posted to rec.aviation.soaring
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Default Gear Warning

In article DdqdnYPHoYf1J-benZ2dnUVZ_v

Try: http://www.research.att.com/projects/tts/demo.html

Type in whatever message you want, choose the gender and accent of the
synthetic voice and download the .wav file. A sexy female voice gets my
attention.

As the gadget makers are now involved, I have a request. How about a small
box containing a multi-input, line-in, fixed volume, audio mixer with
amplifier and decent speaker powered by the ships battery. This box would
have an array of 3mm jacks to receive the audio from the varios, PDA, radio,
and other gadgets that output audio and play them all through the same
speaker. Maybe it should fit in a 57mm instrument hole. I think this would
simplify wiring and improve audio quality.

Bill Daniels

We had a little problem with our gear warning. It worked fine
with the glider in the trailer, but in flight it would sound if you
opened the airbrakes whatever the position of the gear. It certainly
made me check the wheel was down and locked.

We put in a new vario this year, the only snag was we had
nowhere to put the speaker except behind the panel. We thought we could
do with a bit more audio. I remembered our radio, a Dittel clone, has an
input for an intercom. We fed the audio from the vario into the radio,
and now we have all the volume we need.


--
Mike Lindsay
  #52  
Old November 17th 05, 11:05 PM posted to rec.aviation.soaring
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Default Gear Warning

In article .com, Mike
the Strike writes
Pilots who can't respond to a gear warning or radio call probably
shouldn't be flying at all! This isn't a big multi-tasking job. What
would such a person do if the canopy popped open, the brake handle came
off in his hands or the spoilers opened on takeoff?

In a sailplane with a left-handed gear handle, all it takes is- brakes
closed, gear down, brakes open again. I timed it at 3 to 4 seconds in
an ASW 20.

With a right-handed gear handle, you have to close brakes, switch
hands, put gear down, switch back, brakes open, in 4 to 6 seconds. On
downwind, you have plenty of time to do this and even on final if it
isn't too short. At 50 knots, 6 seconds represents no moe than about
600 feet - say 200 meters.

BGA sounds a bit like a mother hen!



Mike


Odd you should say that. There is a lot of talk in this country about
"The Nanny State", by which is meant the propensity of the authorities
to control every aspect of our lives. Perhaps the BGA have been bitten
by the same bug?

--
Mike Lindsay
  #53  
Old November 17th 05, 11:11 PM posted to rec.aviation.soaring
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Default Gear Warning

"Mel Dawson" wrote in message
:

At 21:18 16 November 2005, Nigel Pocock wrote:
One problem with a recorded voice is that it sounds
like background radio chatter and your brain filters
it out (or at least mine does)
Our CFI discovered this the hard way in our brand new
DG1000. luckily landed on soft grass so no damage.

Incidentally the BGA in the UK does not reccomend an
undercarriage warning buzzer.

I know of two accidents causing injury, one serious,
caused by a malfunctioning u/c warning system..

I was taught to look at the u/c lever before going
for the airbrakes and after 3000 hours it hasn't failed.........
yet.





Don't worry, Mel. It will. You are waaaaay past due.



Larry "just get a friggin' gear warning system!!!" Goddard

"01" USA






  #54  
Old November 17th 05, 11:47 PM posted to rec.aviation.soaring
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Default Gear Warning - downwind checks.

At 21:00 17 November 2005, Eric Greenwell wrote:
W.J. (Bill) Dean (U.K.). wrote:

I understand that frequently if someone lands wheel
up, when asked if they
did pre-landing checks they say 'oh, yes!'. The
point of course is that
those who are taught pre-landing checks are flying
training gliders with a
fixed wheel, and so they are used to saying the check
item but doing
nothing.


Perhaps, if they had a gear up warning system, it would
have alerted
them to the put the gear down, and avoided the gear
up landing. I find
having the buzzer screech at me is a good training
aid, and I redouble
my efforts to avoid it in the future.

The people I know that have landed gear up had 100's
(or more) of hours
in the glider they landed gear up, so it seems they
were used to 'doing
something'. The gear up landings I'm familiar with
almost always
involved some distraction so that the checks were not
done, or the pilot
grabbed the wrong handle, or the gear was down for
the whole flight and
raised for landing. Also, the pre-landing checks I
was taught did not
involve the gear, flaps, or ballast, as the ASK 13
had none of these,
and I suspect many (most?) US pilots were trained that
way. All this
leads me to believe the situation you suggest is a
rare one.

Personally, the 3 times my gear up warning saved me,
I had 200, 1000,
and 1500 hours in various retractable gear gliders.
All involved
distraction.


As Bill has correctly pointed out the BGA discourage
the use of undercarriage warnings on the grounds that
activation in the late stage of an approach could itself
cause problems. It is better to land wheels up than
loose control trying to put the wheel down close to
the ground. The cure is worse than the disease. It
can be particulary dangerous where the undercarriage
lever is on the right hand side of the cockpit.

The argument still rages over here between the 'configure
the glider for landing' as soon as that decision is
made. and the pre landing mnemonic. Again as Bill pointed
out challenge and response mnemonics tend to become
automatic both in challenge and response, especially
when learned in gliders which do not have water, flaps
or a retractable undercarriage.



  #55  
Old November 18th 05, 12:17 AM posted to rec.aviation.soaring
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Default Gear Warning - downwind checks.

During fixed-gear single-engine training decades ago, the plane was
equipped with a "gear" switch with red and green lights. My instructor
recognized the problem of transitioning from fixed to retractable gear
and taught gear operation from day one. Even flying a stinkpot Cessna
172 these days I find myself reaching for the gear switch!

Also, mnemonics are useful, but can also be problematic. For my glider
training I was taught "USTALL", which unfortunately doesn't prompt you
to drop water ballast. Guess who's landed full of water a few times!

My revised mnemonic is "BUSTALL", which is especially appropriate to
those who don't use it and land gear up!

Mike

  #56  
Old November 18th 05, 12:30 AM posted to rec.aviation.soaring
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Default Gear Warning - downwind checks.

Eric Greenwell wrote:

The gear up landings I'm familiar with almost always
involved some distraction so that the checks were not done,


I did my first and (yet) only gear up landing, luckily on grass, with
300 hours, most of them with retractable gear. I know exactly why this
happened: I was on a cross country in an unknown region and had to
outland on a controlled airport. I knew the airport had a grass and a
concrete runway, but wasn't there before and I wasn't prepared to land
there. The runway couldn't be seen during the approach, but only on
downwind. So I had first to decide that I had to land there, then study
the airport chart, talk to them, enter the controlled airspace, follow
their instructions, navigate in an unknown place with an "invisible"
runway, look out for that runway etc., which all broke my routine. I
always do my checks on a certain point during the approach sequence. But
that sequence was broken and additional workload was introduced, and
that got me. I've reviewed my routine since.

Stefan
  #57  
Old November 18th 05, 01:25 AM posted to rec.aviation.soaring
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Default Gear Warning

I've got a buddy with a Sisu. His Radio antennae is on his gear door pointing down when the doors are closed, to the side when they are open. It works a little like a curb feeler. It's a last minute warning but it actually saved him once.
"01-- Zero One" wrote in message ...
"Mel Dawson" wrote in message :

At 21:18 16 November 2005, Nigel Pocock wrote:
One problem with a recorded voice is that it sounds
like background radio chatter and your brain filters
it out (or at least mine does)
Our CFI discovered this the hard way in our brand new
DG1000. luckily landed on soft grass so no damage.

Incidentally the BGA in the UK does not reccomend an
undercarriage warning buzzer.

I know of two accidents causing injury, one serious,
caused by a malfunctioning u/c warning system..

I was taught to look at the u/c lever before going
for the airbrakes and after 3000 hours it hasn't failed.........
yet.





Don't worry, Mel. It will. You are waaaaay past due.



Larry "just get a friggin' gear warning system!!!" Goddard

"01" USA





  #58  
Old November 18th 05, 03:52 AM posted to rec.aviation.soaring
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Default Gear Warning


"Paul Remde" wrote in message
news:7KJef.336498$084.184292@attbi_s22...
Hi,

In addition to the audible signal from the 302 - if you have a 303 it
displays a text message which makes it obvious what the issue is.

I like the Tasman approach because a voice message should be able to cut
through all the beeps already going on in the cockpit. I talked to one

user
who installed them in his gliders at his commercial operation. He said the
recorded message was "Lower the Fxxxing Landing Gear!" - in an all out
attempt to get the pilot's attention.

Does anyone have any suggestions for sources of small magnetic reed
switches? I sell mechanical microswitches which I have used in the past

and
like, but I can see the advantages to non-contact switching.

Good Soaring,

Paul Remde
Cumulus Soaring, Inc.
http://www.cumulus-soaring.com


Maybe the hot tip would be to use the sound of something grinding.
In the alarm business, I had a "glass break simulator" that was essentially
a digital recording of breaking glass. That was quite an attention getter.

Tim Ward


  #59  
Old November 18th 05, 04:01 AM posted to rec.aviation.soaring
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Default Gear Warning



Maybe the hot tip would be to use the sound of something grinding.
In the alarm business, I had a "glass break simulator" that was essentially
a digital recording of breaking glass. That was quite an attention getter.

Tim Ward



Or use the sound of the pilot swearing.
  #60  
Old November 18th 05, 04:41 AM posted to rec.aviation.soaring
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Default Gear Warning


"Greg Arnold" wrote in message
newstbff.282$qw.222@fed1read07...


Maybe the hot tip would be to use the sound of something grinding.
In the alarm business, I had a "glass break simulator" that was

essentially
a digital recording of breaking glass. That was quite an attention

getter.

Tim Ward



Or use the sound of the pilot swearing.


Or a Radio Shack piezo buzzer (smoke alarm.) In fact it is so loud that I
mounted it in a sound attenuation box.

It is actuated when flap setting is greater then 40 degrees and gear is up.

Wayne
HP-14 N990 "6F"
http://www.soaridaho.com/Schreder/HP-14/N990/N990.html


 




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