Parachute-slighty off topic

Hard Boil the egg. At least then you can eat it after the egg drop.
Cheers!
"Bob C" wrote in message
...
A case of 'My Daddy's friends are smarter than your
Daddy's friends'.

Here's a different solution - Duct tape about two dozen
eggs together. With any sort of parachute at all,
one is bound to survive.

When I worked in a big machine shop, I must have helped
dozens of Dads make winning pine box derby cars. We
jig bored the axle holes, turned the little bumps off
of the axles, crowned the wheels slightly, balanced
the weight evenly, on and on...Trick is to read the
rules carefully and exploit the loopholes. And remember,
if you're not cheating you didn't want to win bad enough
;o)




At 04:30 13 March 2005, Bumper wrote:
I made one for my daughter out of 6 fiberglass rods,
ends taped to form a
pyramid. Strong rubber bands run from each corner to
a little sack in the
center which holds the egg.

All is well if impact G-loads are within reason. To
increase G-load
capability, either increase strength of rubber bands
or wrap assembly with
cling-wrap to increase drag.

bumper
'Vaughn' wrote in message
...


'chipsoars' wrote in message
oups.com...
I have to help my daughter make a parachute for an
egg drop at school.
Are there any guidelines on design, such as canopy
size for a weight
one of you might be able to share or a handy link.

Ahh memories! I remember going through the same
exercise with my
daughter way too many years ago. The chute size will
be driven by the
contest rules. I remember making a crumple zone for
the egg by forming a
tube out of paper.

Vaughn

Did the kids learn anything in all these fancy devices that 'engineer'
daddy's designed?

"Bob C" wrote in message
...
A case of 'My Daddy's friends are smarter than your
Daddy's friends'.

Here's a different solution - Duct tape about two dozen
eggs together. With any sort of parachute at all,
one is bound to survive.

When I worked in a big machine shop, I must have helped
dozens of Dads make winning pine box derby cars. We
jig bored the axle holes, turned the little bumps off
of the axles, crowned the wheels slightly, balanced
the weight evenly, on and on...Trick is to read the
rules carefully and exploit the loopholes. And remember,
if you're not cheating you didn't want to win bad enough
;o)




At 04:30 13 March 2005, Bumper wrote:
I made one for my daughter out of 6 fiberglass rods,
ends taped to form a
pyramid. Strong rubber bands run from each corner to
a little sack in the
center which holds the egg.

All is well if impact G-loads are within reason. To
increase G-load
capability, either increase strength of rubber bands
or wrap assembly with
cling-wrap to increase drag.

bumper
'Vaughn' wrote in message
...


'chipsoars' wrote in message
oups.com...
I have to help my daughter make a parachute for an
egg drop at school.
Are there any guidelines on design, such as canopy
size for a weight
one of you might be able to share or a handy link.

Ahh memories! I remember going through the same
exercise with my
daughter way too many years ago. The chute size will
be driven by the
contest rules. I remember making a crumple zone for
the egg by forming a
tube out of paper.

Vaughn

Hi Chip,
your question set me looking through my photo's of a trip to
my office
in Switzerland last year. We went through one of those "executive training
courses"
and had to design a device to allow an egg to be dropped 10 metres without
smashing.

Of course the facilities were deliberately limited. We used drinking straws
as a shock
absorber, a paper tube as a crush zone and finished off with two balloons to
slow the
descent. It worked !!

I have a picture which I can send direct if it would help.

There's no fee for the design by the way, but don't tell NASA!!

Malcolm (in the UK)



"chipsoars" wrote in message
oups.com...
I have to help my daughter make a parachute for an egg drop at school.
Are there any guidelines on design, such as canopy size for a weight
one of you might be able to share or a handy link.

Somehow I think my Strong is overkill.

Chip F.

To all the posters on this thread: Thank you!

I never knew, till today, the proper meaning of 'Egghead.'


At 15:30 13 March 2005, Malcolm Austin wrote:
Hi Chip,
your question set me looking through
my photo's of a trip to
my office
in Switzerland last year. We went through one of those
'executive training
courses'
and had to design a device to allow an egg to be dropped
10 metres without
smashing.

Of course the facilities were deliberately limited.
We used drinking straws
as a shock
absorber, a paper tube as a crush zone and finished
off with two balloons to
slow the
descent. It worked !!

I have a picture which I can send direct if it would
help.

There's no fee for the design by the way, but don't
tell NASA!!

Malcolm (in the UK)



'chipsoars' wrote in message
roups.com...
I have to help my daughter make a parachute for an
egg drop at school.
Are there any guidelines on design, such as canopy
size for a weight
one of you might be able to share or a handy link.

Somehow I think my Strong is overkill.

Chip F.

For the parachute, we used the ultralight plastic from a cleaners bag.
We used a light crumple zone made from rings of corrugated paper. It
worked. The chute was very effective.

Jack Womack (AZ)