Search found 6 matches

by Mitchell
Sat Dec 08, 2007 7:16 pm
Forum: Valveless pulsejet forum
Topic: 0.61 SFC...Forget about Valveless Pulse-jets!!
Replies: 15
Views: 5749

Re: 0.61 SFC Pulseramjet from GLC

And as to unaugmented, Mitchell, it is the most highly augmented motor going. How else can you look at a supersonic rocket of fuel to entrain air. And it IS a valveless pulse jet! no offense there mike, but I think maybe that was the spiked-eggnog talking when you wrote this - Heh, heh (kidding!!!)...
by Mitchell
Fri Dec 07, 2007 8:31 pm
Forum: Valveless pulsejet forum
Topic: 0.61 SFC...Forget about Valveless Pulse-jets!!
Replies: 15
Views: 5749

0.61 SFC...Forget about Valveless Pulse-jets!!

Guys,
Don't waste your time anymore with valveless pulsejets, look at what Luc's done over on the pressure jet forum (see Pulseramjet thread), a 0.61 specific fuel consumption!! And un-augmented, too!

Pressure jets are obviously the way to go for low-cost, light-weight aircraft propulsion!!
by Mitchell
Fri Dec 07, 2007 7:51 pm
Forum: Pressure jet forum
Topic: Pulseramjet
Replies: 42
Views: 25764

Pulseramjet SFC

62.4 lbs per hour fuel consumption (1.04lb/min X 60min/hr) producing an average thrust of 102 lbs yields a thrust-specific fuel consumption of 0.61 lb Fuel per lb thrust per hour. THAT IS ASTOUNDING!! This beats even the very best fully augmented valveless pulsejets, and many early gas turbines. Is ...
by Mitchell
Fri Dec 07, 2007 5:26 pm
Forum: Pressure jet forum
Topic: Pulseramjet
Replies: 42
Views: 25764

Re: re: Pulseramjet

Hi again, 10 to 1 is now a secured thrut to weight ratio. At one point we had readings showing 209 lbs. of thrust from a 9 pounds engine, but this reading still needs to be secured steady from one engine to another. Our last one is 337 lbs. of thrust from a 36 pounds engine (9.36 to 1 ratio). But w...
by Mitchell
Mon Jul 02, 2007 5:44 pm
Forum: Valveless pulsejet forum
Topic: Lady Anne Boleyn Rev07 Full Size Plan Drawings
Replies: 53
Views: 24025

Lady Anne Boleyn Rev07 Full Size Thrust Produced

Hello Larry,

What is the expected maximum Thrust for this engine?

Regards,

Mitch
by Mitchell
Mon Dec 04, 2006 10:04 pm
Forum: Valveless pulsejet forum
Topic: Valveless Question for the Experts about combustion chamber
Replies: 0
Views: 1231

Valveless Question for the Experts about combustion chamber

What is the between relationship combustion chamber volume and BTu's fuel (propane) consumed for a typical high performance valveless pulsejet? Can one of the experts (or anybody) here provide a graph or an equation? Also, does this ratio depend upon engine size, or is it a constant? Thanks much in ...