at about 11-12 a couple friends and I built a airplane.

Using our soapbox derby and go-cart expertise we built a plywood 2 seater. we knew it wouldn't take off on level ground so we intended to use a really seep hill to get it off the ground. We used the engine and blade (we THOUGHT the blade would make a good prop)from my dad's mower.

we spend 2 months biulding the whole thing in secret, then one saturday we take the engine (planning to have it back by the time anyone notices)and haul it up to the highest steepest hill in town, fire it up get in and have two other kids push it and get it going.

full throttle it's rolling down the hill at about 25-30 (feels like 200) and about 1/2 way down the hill the the the engine brakes loose and goes skipping swidways into someones yard and through the fence into another yard. plane falls apart nearly killing us. my friend had a broken arm, I had a broken rib.

Dad was NOT happy