"Everyman's Jet Engine" - Why Valveless Pulsejets?
A few experimentors (most notably Eric Beck of Beck Technologies, Inc.) have shown that valveless
pulsejets can be readily started and run in outdoor air temperatures far below freezing, and also
during rain- and snow-storm conditions without special protection from the elements. Airborne water
droplets, snowflakes and ice crystals pass through the engine with no noticeable negative effects on
operation. The only obvious exception is that the engine's intake and tailpipe openings will probably
need to be protected from the influence of strong or gusty winds during starting.
- All-weather operation without special care or modifications