Trajectory B/C

[starpug]

Are there any tips to building a catapult?

Trajectory Wiki

Honestly people read the OP

[waawamellon]

All my measurements where in ft, I was really thrown off when the people told me the target was 3 METERS away. so remember, 1 meter (almost) equals 1 yard.

[csales_estigers]

I am from Excelsior Springs, Mo And I go to Excelsior Springs Middle School.....Somebody stole out trajectory that we made last year .. If anybody has the directions how to make one, I will take any designs perferably the design with PVC Pipe!
Thanks

[ncha13]

should i do a basic pull catipult were it is in a box shape and you pull back and let go or somthing basic for a school project

[AlphaTauri]

I'm officially in Trajectory this year. I'm excited!

Anyways, if we use a screwdriver with a string attached as the pin to hold the arm in place and our launch mechanism is simply to yank it out, would that be a violation of the rules, specifically the part that says "the triggering device must not pose a danger to anyone due to flying parts or excessive movement outside the launch area"?

Edit: I just noticed the best possible score for Trajectory this year is -200. That's sort of weird.

[Abhisek724]

what can you use to power the trajectory contraption


i need this info, Quick!!!!

[andrewwski]

Read the rules. It tells you what you can and can't use.

If you read the rules, you'll see that they say you can use any non-metallic elastic solid.

[Abhisek724]

oh yeah, thanks, i actually took the time to go through the info

[jacjackson]

what and how should me and my friend make a catapult

[starpug]

You can start by reading the first post in the thread, look through those links then read the rest of the thread. If this thread was 50 pages I would understand not looking through it, but when it's 4 pages you should read the entire thread before posting something like "How do I make a catapult" or "What design should I use."