Our device only has to hurl an 8lb pumpkin 800' for us to win. www.virtualtrebuchet.com is a very fine website with some math behind a predicted performance. Just plug in the numbers and adjust to see how far you can throw an object.
There is a competition in Burlington, put on by the Parks and Recreation division. There is another competition in Snohomish within a week too. Both of these contests attract 5-8 different trebuchets and we intend to enter the contest that tops out at 800'. There is another contest to 1600' but for our first run at this we will go for the 800' contest.
|Lucky Dave with his head cut off for security purposes.|
I mentioned my pursuit to my disc golf friends from Anacortes and Bellingham and they were instantly in! We talked about resources and since Lucky Dave worked at Marine Service Center, he mentioned they had quite a bit of scrap steel from yacht delivery cradles. I went and talked with the owner, Jim Rard, and he also had been planning to build a trebuchet for some years and this was the impetous he needed to get going on it.
|Jim Rard of MSC looking at the 27' mast section for our throwing arm.|
In the yard of Marine Service Center in Anacortes were all the ingredients for our creative, if bent, minds. We found a platform that is roughly 6' x 10' built of welded 2x4 steel members and even has feet under it for easy forklift pickup.
Additionally, we found an axle system in a set of wheels used for some sort of caster like application.
|The axle in the rough.|
|The axle minus the wheels.|
|The axle sitting on our platform.|
|Count Ferrari cleaning out the old|
grease from the axle.
|Jim on the left and the Count on the right,|
both checking the spar section.
It weighed in at 125 lbs or 4.5lbs per foot.