Imagine our surprise when we learned [Bruce Simpson], who made headlines in 2003 with his $5000 DIY ... pulse jet projects. He’s flown quite a few modified R/C planes and has an electronic ...

Calling this a working jet engine is not really an overstatement. As every backyard jet jockey knows, the first goal of DIY jets (aside from not hurting yourself) is self-sustaining. Turbines are ...