This is the sort version of a discussion on some of the differences between a Straight Tube design Valveless Pulse Jet engine verses and the standard Lockwood U-Shaped design. Included in the film are multiple clips from the first few days of tuning a straight tube design engine before it was fitted with a 145 psi. fuel pump to replace the compressed air fuel atomizer. This is part of a longer full length film on pulse jet design from start to finish, and will be available later next year.
MrTeslonian