Bottle Rocket B

[robotman]

Are parachutes legal this year???

No one has the rules as of yet
but i am thinking that they may disallow parachutes

[amerikestrel]

If anyone has the rules yet, can you tell us the answers to some of these questions?

[robotman]

all of my statements have been based off the draft rules I saw. I am being vague so that if they change I am not totally wrong >.>

[fleet130]

Here's a new twist: Para. 3.g "Rockets may not change shape or deploy any type of recovery system."

This would seem to limit rockets to some type of backslider/glider.

Other parameters:
.....1. 1 or 2 rockets
.....2. 2-liter bottle
.....3. Blunt nose/minimum radius
.....4. 75psi
.....5. May not change shape

[EpicFailOlympian]

Here's a new twist: Para. 3.g "Rockets may not change shape or deploy any type of recovery system."

This would seem to limit rockets to some type of backslider/glider.

Other parameters:
.....1. 1 or 2 rockets
.....2. 2-liter bottle
.....3. Blunt nose/minimum radius
.....4. 75psi
.....5. May not change shape

Awwwww...So we can't use the ping-pong ball nose cone...

[robotman]

A ping pong ball would count as a blunt nose cone in my book

[EpicFailOlympian]

No, you know the long paper nose cone w/ ping-pong ball ending?
( ) ---------------------o
^waterbottle ^paper ^pingpong ball

[EpicFailOlympian]

No really blunt...

[robotman]

yes i know that type of design
However I would at the moment interpret that rule as no conical nose cones as there was a the same rule last year in egg-o-naut.
so the upper half of a 2 liter with the cap up is ok for a nose cone
or a "cone" that ends in a spherical or flat shape

But a straight rod ending in a cone with a point would be disallowed

That is my interpretation at the moment however this is based off previous years rules and my opinion may change after i see this years rules

[fleet130]

The rules say that the nosecone must not touch the inside of the top of a 2-liter bottle cap placed on it.
..............................

[EpicFailOlympian]

Fleet, you have the rules right? Is robotman right?

[robotman]

The rules say that the nosecone must not touch the inside of the top of a 2-liter bottle cap placed on it.

I just did a test on a pingpong ball with an 2 liter bottle cap with a hole cut in the center(to be able to see). The ping pong ball does not touch anywhere exept where the cap is set on the ball
so i would consider it to follow that specification

[fleet130]

A ping pong ball would count as a blunt nose cone in my book

Is robotman right?

I don't have a ping pong ball handy, but that seems correct.

The traditional backslider rolled paper nose cone that comes to a point would not comply. Snip tip & Insert PP ball = OK. Or maybe insert pointed end of cone into hole in PP Ball? Are there possibilities for hairsplitters to exploit the language in the rules? This is apparently a safety issue and the general rules state safety decisions are not subject to appeal. If you push the envelope too much, you may be left out in the cold!

[EpicFailOlympian]

So fleet your saying that doesn't work
and this does?

[robotman]

So fleet your saying that doesn't work
and this does?

Both of those would work
as long as the nose does not go like ^ to a point and a bottle cap sets on top it will work
since both of them end in a spherical shape they are fine.
Putting an arrow shaft on would not be correct however