I need catapult plans and control line people like myself use catapults but I dont I need to make a catapult fo school

What the heck are you talking about!???

you know the catapults people use that are into cl carrier I'm thinking that design could be good

They use arresting cables on the carrier deck for landing but I've never heard of them useing a catpult.

I'm afraid he's right UP. The models just are so light and the engines so strong that the models just take off normally in that distance.

What sort of project are you planning for school? Extra detail may help a LOT!

Just about all CL aircraft are props with great thrust to weight ratios so a steam cat is 1 not needed and 2 would do more damage than good. Sounds like you watch too much TV..... LOL

I do have a question for you carrier guys and gals whats the dimentions of the carrier and or deck? Do you land hot or dead stick.....wire?

UglierThanTheRest:

The AMA competition rules are on line at www.modelaircraft.org and you can check there for class specifics.

Generally, the carrier deck is about 30 degrees of the circle, or 30 feet long on a set of 60' lines. Width? also set by the rules, but not terribly important - if you stand in the center of the circle you'll hit the deck.

If the rules are generally the same as they were you will take off from the forward part of the deck, and make your high speed laps, then throttle back for your low speed. You are scored on the difference between the high and low speeds.

The after part of the carrier deck has arresting lines across it, usually stretched through guides and out to sand bags to give the braking. You have to drop your hook, and land by catching one of these lines. Maximum score is possible only if your engine is still running after landing.

There are other things that will add to your score, how close the plane is to scale, working flaps and retractable gear, so forth. I think there is a simpler class that doesn't allow fancy workings, check the website and the rules.

Bill.

I have to launch a marshnillow and I thought Cl used catapults so I thought I could use that and also use it for CL

Underaged Pilot,
Check with your local Boy Scout office. There is an activity for Webelos scouts that requires them to build a catapult. It is something to do with engineering, I think. I was a Webelos leader in 1983 so forgive me for not remembering the details.
Good luck with your project.

George

Well I was just a cub scout but now I'm a Boy scout but I don't remember that

I just punched "Catapult Plans" into Google and got several usable sites with free plans on them. U

Check out this Webelos den link, it has pictures of some Webelos and their catapult. You might want to scale it down for marshmallows, this one fires tomatoes:

http://www.cubpacks.org/fl/cs/388/webelos.html

Good luck with your project.

George Bain
ASM Troop 26
Rip VanWinkle Council, BSA

i got a pvc catapult but I'll try that design

Didja know that Marshmallows originated with the pharros in Egypt?

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