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“I liked that I was able to build different catapults.”
-Jacob French, participant

“Catapult Engineering is non-stop, hands-on physics fun with a medieval flair. The kids got to work on their building, teamwork and critical thinking skills without even realizing it.”
-Lorraine Olendzenski, mom

What we do at Catapult Engineering!

Children are grouped into teams that build the trebuchet seen in the photo above. With adult supervision the trebuchet is tested and used in outdoor medieval challenges. Engineering drawings are used to guide the teams in assembling the trebuchet.

The teams do all the figuring, aiming, positioning and loading in preparing to knock down a mock castle wall. The lead instructor, however, is the one who sets the trebuchet before allowing the release of the siege machine. Safety first.

“The best part was building my own table-top catapult! It was awesome!”
-Silas Green, participant

● develop team building & leadership skills
● read & follow plans
● solve engineering problems on the field
● tweak the trebuchet for maximum performance and rule the kingdom
● discover structures, physics, statics, mechanics, joinery, simple machines, construction and more
● use tape measures, squares, levels, wrenches, levers & fulcrums, wedges, pulley blocks and mallets

Each child also assembles her/his own take-home table-top catapult. These are used for indoor games.

“I wish we had this when I was 10!”
-King Richard I of England (1157-1199)

“I liked that I was able to be creative & paint & design my medieval banner.”
-Aynsley French, participant

Outdoor field games, like Castle, add to the fun.

Inside, children get to unleash their creativity by producing medieval themed art.

Program leaders

Your lead instructor is John Aviste, P.Eng. He is accompanied by a trained assistant, carefully chosen for their ability to engage the young engineer in your family!

What, where, when & how much

Greater Boston MA
Regis College, Weston MA $635 Early Bird pricing until March 29
● June 26-30
Gann Academy, Waltham MA $635 Early bird pricing until March 29
● August 7-11

● week-long Monday to Friday 9:00 a.m. to 4:00 p.m. programs
● optional extended care 8:00 – 9:00 a.m. $45/session and/or 4:00 – 6:00 p.m. $90/session
● optional lunch $55/session
● limited to 14 children, ages 10 to 14, with case by case exceptions for 9 year-olds
● Early Bird $40.00 (off regular price of $675) through March 29
● Register any two or more sessions & save $25.00 on each one!


Ready to Register? Choose a location below to get started.