www.pulse-jets.com

Slightly odd reed

neptune i never heard of but its a OB allrite.
here's the manual that doenst look like its a pulse OB :(
http://www.repairmanual.com/marine/41/475

frequency is approximately f = c/4L, where the velocity of sound in steam (M = 18) should be used. If we take T = 473 K, c = 555 m/s, a whistle sounding 660 Hz would have a length L = 21 cm, or about 8.26". see what you mean and want to blow whistles under water or what about this singing flame, go...

marksteamnz, thanks for mentioning "Or even more of their ideas at http://www.meditech.ch/exoticthermoengineering/" normaly i check a adres better but this was missed, good stuff! Viv, "Hey you would have thought they would have gone for an 8 digit number instead of two letters" 8 digit adres decall...

isnt that a more frightning than fun thought for aluminum lovers? i did not know this but love those older books; got one from Disney here from the early fifty's called "our frend the atom" meanwhile i'm still wondering about the break of the century but for now i'm out sailing splitting water ;-)

a rocket engine turns a turbine. simple concept but difficult to get right.

looks about allright to me.

just with 85.000 rpm be very, very gently on the clutch!

am i gettin behind? i have to start readin again from the top. ah steam! and recently i've been reading bout nasa sterling free piston (and oposite too) sterlings on various fuels and more, keep me posted please!

I can see some neat engines born out of wedlock to the turbojet and the free piston engine. your sketch is just the beginning. Not a beginning, just one possibility. For example : attached is the ever-wonderful Paul Schmidt's patent GB741253 for a hybrid turbine / free piston / pulsejet device. It'...

Congrats on that first time running Focused Wave Engine guy's! and i'm following the rest with great interest

for a good smile have a look at this home made boat jet http://www.belljar.net/jetboatdevel1.htm

seen something in this class

nanosoft mentioned http://www.popsci.com/popsci/aviation/a ... -3,00.html devellopment on somehow similar hybrid engines. reading the printed Schmidt hybrid pulse/piston/turbine engine patent, mindbogling though

Mike,
thanks for telling Mark is OK.

those were the day's :P with your permission asumed i placed the link on my favorit boating forum. now lets think up a pulsing boat jet maybe like a V3 or squid, nature has taken millions of years of trial and era to produce the living things in nature. A heart, a squid, an octipus and who knows wha...

i like your drawing anyway tufty, it gives ideas. Great post Bruno. still reading up and found this interesting read http://www.pulsengine.com/webpage04.html

interesting and promising, good specs, see http://www.dynacam.com/Applications/applications.html
i can imagine the exhoust silenced below the waterline...

had some winds in Fl once but this looks terrible. i mis mark also and hope he -and his jets- is allrite.