Max gross weight

How do aircraft manufactures determine the maximum gross weight for a
given plane? I know I've come across articles that mention on a cool day
you can go over the max. gross weight by a percentage, I think 20% was
thrown out there but not sure. Then again, on a hot day you might not
get any where near that. Is it determined by a standard temp?

In article ,
Chris wrote:
How do aircraft manufactures determine the maximum gross weight for a
given plane?

The prototype is fitted with a water bladder and is flown in formation
with a tanker. The bladder is slowly filled with water until the plane
drops out of the sky. A gauge in the tanker indicates the max gross
weight of the new design.

--
Ben Jackson

http://www.ben.com/

ROFLMFAO

very funny indeed
BT

"Ben Jackson" wrote in message
news:8xq6d.171917$3l3.101172@attbi_s03...
In article ,
Chris wrote:
How do aircraft manufactures determine the maximum gross weight for a
given plane?

The prototype is fitted with a water bladder and is flown in formation
with a tanker. The bladder is slowly filled with water until the plane
drops out of the sky. A gauge in the tanker indicates the max gross
weight of the new design.

--
Ben Jackson

http://www.ben.com/

"Ben Jackson"
The prototype is fitted with a water bladder and is flown in formation
with a tanker. The bladder is slowly filled with water until the plane
drops out of the sky. A gauge in the tanker indicates the max gross
weight of the new design.


How would you like to be the lucky pilot during "water test" ...#2?

http://www.theknownuniverse.com/comet.htm
(bottom half of the piece)

The Ministry of Civil Aviation decided upon a unique test to find out. They
built a tank large enough to hold one of the grounded Comets. The wings
protruded from water-tight slots in the sides of the tank. Then the tank and
cabin were flooded with water. The water pressure inside the cabin would be
raised to eight and a quarter pounds per square inch to simulate the
pressure encountered by a Comet at 35,000 feet. It would be held there for
three minutes and then lowered while the wings were moved up and down by
hydraulic jacks. The hydraulic jacks would simulate the flexing that
naturally occurs in aircraft wings during flight. This process continued
non-stop, 24 hours a day.


Montblack

"Chris" wrote in message
...
I know I've come across articles that mention on a cool day
you can go over the max. gross weight by a percentage, I think 20% was
thrown out there but not sure.

You should NEVER go over max GW.. that is a limit, not a buffer zone.

The aircraft may be able to support the extra weight on a smooth day.. but
not in turbulence, and when the accident investigation computes your actual
GW and finds a "causal factor in the accident is exceeding the Max GW
allowed".. your insurance company may find your policy invalid.

BT

"your insurance company may find your policy invalid"

bull

"BTIZ" wrote in message
news:uYq6d.114$mS1.39@fed1read05...

"Chris" wrote in message
...
I know I've come across articles that mention on a cool day
you can go over the max. gross weight by a percentage, I think 20% was
thrown out there but not sure.

You should NEVER go over max GW.. that is a limit, not a buffer zone.

The aircraft may be able to support the extra weight on a smooth day.. but
not in turbulence, and when the accident investigation computes your
actual
GW and finds a "causal factor in the accident is exceeding the Max GW
allowed".. your insurance company may find your policy invalid.

BT

Isn't there a 15% tolerance allowed for certain types of flights in Alaska?

--
Jim Carter
"BTIZ" wrote in message
news:uYq6d.114$mS1.39@fed1read05...

"Chris" wrote in message
...
I know I've come across articles that mention on a cool day
you can go over the max. gross weight by a percentage, I think 20% was
thrown out there but not sure.

You should NEVER go over max GW.. that is a limit, not a buffer zone.

The aircraft may be able to support the extra weight on a smooth day.. but
not in turbulence, and when the accident investigation computes your
actual
GW and finds a "causal factor in the accident is exceeding the Max GW
allowed".. your insurance company may find your policy invalid.

BT

In article ,
"Jim Carter" wrote:

Isn't there a 15% tolerance allowed for certain types of flights in Alaska?


Part 135 only.

--
Dale L. Falk

There is nothing - absolutely nothing - half so much worth doing
as simply messing around with airplanes.

http://home.gci.net/~sncdfalk/flying.html

"Dale" wrote in message ...
In article ,
"Jim Carter" wrote:

Isn't there a 15% tolerance allowed for certain types of flights in Alaska?


Part 135 only.

And even then it's not just an "automatic" increase.

Thanks, its been many years since I flew out of Boeing Field and up the
coast, so I wasn't sure that kind of thing was still allowed up there.

--
Jim Carter
"Ron Natalie" wrote in message
m...

"Dale" wrote in message
...
In article ,
"Jim Carter" wrote:

Isn't there a 15% tolerance allowed for certain types of flights in
Alaska?


Part 135 only.

And even then it's not just an "automatic" increase.