Airplanes and Brakes?

On Sep 15, 4:47*pm, "Viperdoc" wrote:
I've been in a couple of planes where without the brakes the thing
accelerates too much. The F-16 comes to mind, where without intermittent
braking it picks up too much speed, and braking on landing is pretty much
SOP.

My Baron needs occasional braking on taxi, otherwise below around 1000rpm
the oil pressure drops too low. My friend's turbine Bonanza *needs to use
beta during taxi or the brakes to keep from picking up too much speed.

"Dudley Henriques" wrote in message

...
On Sep 15, 2:44 pm, "Ol Shy & Bashful" wrote:

I'm deligthted to see I'm managing to get some arguments and
discussion going. And if you notice, No Profanity?
I challenge my students to learn to taxi without brakes. and I come
down hard if they beat up the airplane with unecessary braking instead
of staying ahead of the airplane. (sometimes even with profanity! Can
you imagine that?)
How about you? If you had to pay for the brakes, tires, and
maintenance, would YOU beat up the airplane?
Ol S&B

I agree completely, (and without cussing :-)

I see you are naturally getting replies from the Grumman and Cherokee
folks :-) But your point is well made. The way I would present this
issue is to simply say that brakes are put on the airplane to hold it
for the run up check and for use ONLY when your pre-planned use of
aerodynamic forces available to you, or your steering capabilities
won't make the necessary change in direction.
In other words, you shouldn't be using them on takeoff, landing, and
even while taxiing if your planning is adequate for the situation.
I like the general rule that dictates that brakes on an airplane
should be used as little as possible.

Dudley Henriques

Had the chance to fly the Viper a few times. Didn't notice any
excessive increase in taxi speed that very light braking couldn't
handle. Did use them a bit being late with throttle reduction after a
start from a standing position until I got used to the response :-)
Landing the Viper for me anyway was a conglomeration of a lot of
things happening at once. Assuming no drag chute deployment, keeping
the nose up to 13 degrees AOA gave good aerodynamic braking down to
about 80kts. At 80 kts you could fly the nosewheel down to the runway
with good control. If I remember right, the speedbrake was restricted
to around 43 degrees with the airplane dirty and this was in play
through touchdown and until the nose was on the runway, then hitting
the SB slider again extended the boards out to full at 60 degrees.

I didn't notice anything that required excessive brake use through
roll out. In fact, I never flew the Viper with heavy externals but the
word was that landing hot and using the brakes could get you sent over
to the hot brake area to sit and sweat your butt off over there in the
sun :-))
DH

Saw the hot brake thing a couple of times- glowing red hot. I wouldn't want
to be standing anywhere near the wheel if the plug blew up. With the engine
running the ECS keeps the thing remarkably cool.

On Sep 15, 5:34*pm, "Viperdoc" wrote:
Saw the hot brake thing a couple of times- glowing red hot. I wouldn't want
to be standing anywhere near the wheel if the plug blew up. With the engine
running *the ECS keeps the thing remarkably cool.

They told me what the tire pressures were but I can't remember. I do
recall it was some ungodly high pressure. I sure wouldn't want to have
one blow right next to me for sure :-))

Wonderful airplane! Just like the T38; point it where you want it to
go and hang on :-)
D

As I recall it was somewhere in the range of around 250psi, and the
magnesium wheels have a blow out plug to keep the thing from exploding.
However, I still wouldn't want to be anywhere near if the thing let go.

We taxied up next to one with hot brakes, which we called on the radio, and
I couldn't wait until the ordinance guys did their check to get out of
there- it seemed like the wheel was pointing right at us.

On Sep 15, 6:05*pm, "Viperdoc" wrote:
As I recall it was somewhere in the range of around 250psi, and the
magnesium wheels have a blow out plug to keep the thing from exploding.
However, I still wouldn't want to be anywhere near if the thing let go.

We taxied up next to one with hot brakes, which we called on the radio, and
I couldn't wait until the ordinance guys did their check to get out of
there- it seemed like the wheel was pointing right at us.

Sort of like staring into a loaded bomb I would imagine.
D

"Dudley Henriques" wrote in message
...
On Sep 15, 4:47 pm, "Viperdoc" wrote:
I've been in a couple of planes where without the brakes the thing
accelerates too much. The F-16 comes to mind, where without intermittent
braking it picks up too much speed, and braking on landing is pretty much
SOP.

My Baron needs occasional braking on taxi, otherwise below around 1000rpm
the oil pressure drops too low. My friend's turbine Bonanza needs to use
beta during taxi or the brakes to keep from picking up too much speed.

"Dudley Henriques" wrote in message

...
On Sep 15, 2:44 pm, "Ol Shy & Bashful" wrote:

I'm deligthted to see I'm managing to get some arguments and
discussion going. And if you notice, No Profanity?
I challenge my students to learn to taxi without brakes. and I come
down hard if they beat up the airplane with unecessary braking instead
of staying ahead of the airplane. (sometimes even with profanity! Can
you imagine that?)
How about you? If you had to pay for the brakes, tires, and
maintenance, would YOU beat up the airplane?
Ol S&B

I agree completely, (and without cussing :-)

I see you are naturally getting replies from the Grumman and Cherokee
folks :-) But your point is well made. The way I would present this
issue is to simply say that brakes are put on the airplane to hold it
for the run up check and for use ONLY when your pre-planned use of
aerodynamic forces available to you, or your steering capabilities
won't make the necessary change in direction.
In other words, you shouldn't be using them on takeoff, landing, and
even while taxiing if your planning is adequate for the situation.
I like the general rule that dictates that brakes on an airplane
should be used as little as possible.

Dudley Henriques

Had the chance to fly the Viper a few times. Didn't notice any
excessive increase in taxi speed that very light braking couldn't
handle. Did use them a bit being late with throttle reduction after a
start from a standing position until I got used to the response :-)
Landing the Viper for me anyway was a conglomeration of a lot of
things happening at once. Assuming no drag chute deployment, keeping
the nose up to 13 degrees AOA gave good aerodynamic braking down to
about 80kts. At 80 kts you could fly the nosewheel down to the runway
with good control. If I remember right, the speedbrake was restricted
to around 43 degrees with the airplane dirty and this was in play
through touchdown and until the nose was on the runway, then hitting
the SB slider again extended the boards out to full at 60 degrees.

I didn't notice anything that required excessive brake use through
roll out. In fact, I never flew the Viper with heavy externals but the
word was that landing hot and using the brakes could get you sent over
to the hot brake area to sit and sweat your butt off over there in the
sun :-))
DH

---------------------------------------

Shame you got thrown off Wikipedia, you would have to keep retyping this
**** every time you feel insecure.

On Sep 16, 10:40*am, "Mick" @_#`~#@.^net wrote:
"Dudley Henriques" wrote in message

...
On Sep 15, 4:47 pm, "Viperdoc" wrote:



I've been in a couple of planes where without the brakes the thing
accelerates too much. The F-16 comes to mind, where without intermittent
braking it picks up too much speed, and braking on landing is pretty much
SOP.

My Baron needs occasional braking on taxi, otherwise below around 1000rpm
the oil pressure drops too low. My friend's turbine Bonanza needs to use
beta during taxi or the brakes to keep from picking up too much speed.

"Dudley Henriques" wrote in message

....
On Sep 15, 2:44 pm, "Ol Shy & Bashful" wrote:

I'm deligthted to see I'm managing to get some arguments and
discussion going. And if you notice, No Profanity?
I challenge my students to learn to taxi without brakes. and I come
down hard if they beat up the airplane with unecessary braking instead
of staying ahead of the airplane. (sometimes even with profanity! Can
you imagine that?)
How about you? If you had to pay for the brakes, tires, and
maintenance, would YOU beat up the airplane?
Ol S&B

I agree completely, (and without cussing :-)

I see you are naturally getting replies from the Grumman and Cherokee
folks :-) But your point is well made. The way I would present this
issue is to simply say that brakes are put on the airplane to hold it
for the run up check and for use ONLY when your pre-planned use of
aerodynamic forces available to you, or your steering capabilities
won't make the necessary change in direction.
In other words, you shouldn't be using them on takeoff, landing, and
even while taxiing if your planning is adequate for the situation.
I like the general rule that dictates that brakes on an airplane
should be used as little as possible.

Dudley Henriques

Had the chance to fly the Viper a few times. Didn't notice any
excessive increase in taxi speed that very light braking couldn't
handle. Did use them a bit being late with throttle reduction after a
start from a standing position until I got used to the response :-)
Landing the Viper for me anyway was a conglomeration of a lot of
things happening at once. Assuming no drag chute deployment, keeping
the nose up to 13 degrees AOA gave good aerodynamic braking down to
about 80kts. At 80 kts you could fly the nosewheel down to the runway
with good control. If I remember right, the speedbrake was restricted
to around 43 degrees with the airplane dirty and this was *in play
through touchdown and until the nose was on the runway, then hitting
the SB slider again extended the boards out to full at 60 degrees.

I didn't notice anything that required excessive brake use through
roll out. In fact, I never flew the Viper with heavy externals but the
word was that landing hot and using the brakes could get you sent over
to the hot brake area to sit and sweat your butt off over there in the
sun :-))
DH

---------------------------------------

Shame you got thrown off Wikipedia, you would have to keep retyping this
**** every time you feel insecure.

I'll be sure to do that for you Maxie.

Actually, what REALLY assuages my ego and sense of superiority is when
I read your posts and see in every one of them the VAST differences on
every conceivable level between the two of us. :-)))))

"Dudley Henriques" wrote in message
news:24ebb918-0868-4d39-aefe-

Actually, what REALLY assuages my ego and sense of superiority is when
I read your posts and see in every one of them the VAST differences on
every conceivable level between the two of us. :-)))))

------------------------------------------------------------------

Nonsense, every reply massages your ego. That's the only reason "has beens"
like you are here.

You're not interest in promoting aviation, you're just interested in
promoting yourself.