Search found 1241 matches

by hinote
Fri Mar 27, 2009 4:10 pm
Forum: Valveless pulsejet forum
Topic: Mike's Build Log
Replies: 379
Views: 119966

Re: Mike's Build Log

Here's the triple. I think I want to bump up the intake dia, considering how well the upscale went at a little higher confinement ratio. Mike Just a couple of thoughts (which you may have already considered): 1. The rendering seems to depict the intake and exhaust ends adjacent to each other; this ...
by hinote
Wed Mar 25, 2009 5:59 pm
Forum: Valveless pulsejet forum
Topic: Mike's Build Log
Replies: 379
Views: 119966

Re: Mike's Build Log

Mike Everman wrote:
metiz wrote:
Hmm revamping the tailpipe into one with an integrated augmenter? :wink:
Yep, and also a free power turbine, and also a whirly motor.
Mike:

Nice job!!

Looks like you could augment both ends.

Bill
by hinote
Mon Feb 16, 2009 6:53 pm
Forum: Valveless pulsejet forum
Topic: "Thunderchine" 55 lb thrust pulsejet plans
Replies: 142
Views: 52285

Re: "Thunderchine" 55 lb thrust pulsejet plans

Hello M.:

Can you provide us with your expectations regarding TSFC, operating frequency and acoustic temp?

Also, has a first article been built and tested yet?

Bill H.
by hinote
Fri Feb 13, 2009 4:09 am
Forum: Valveless pulsejet forum
Topic: Back with the BIG LADY
Replies: 112
Views: 13138

Re: Dance of the Thunderchines

milisavljevic wrote:Long promised, often delayed...

M.
Do I hear a clock ticking?......?......?......?......?......?......?......?......?......?
by hinote
Sat Feb 07, 2009 2:56 am
Forum: Tools and Construction
Topic: dB turns your Iphone in to a db meter!
Replies: 7
Views: 2382

Re: dB turns your Iphone in to a db meter!

How cool is that app for the Iphone, almost like they knew about us ;-) http://www.faberacoustical.com/products/iphone/db/ Viv I can't believe how advanced this product really is. Here's a link that's totally off the wall: http://www.gizmag.com/bullet-flight-100--the-us15-iphone-app-for-snipers/108...
by hinote
Wed Dec 17, 2008 3:19 am
Forum: Valved pulsejet forum
Topic: dynamic modeling of a strip valve
Replies: 144
Views: 2855083

Re: dynamic modeling of a strip valve

HI Forrest: We haven't talked in quite a while. Thanks again for your interest in my project of some years ago (a duplicate of the now-famous Kentfield motor, with 4 intakes); your analysis and subsequent positive recommendation provided me with incentive to build a successful version of my own, and...
by hinote
Wed Dec 17, 2008 3:04 am
Forum: Tools and Construction
Topic: THRUST RIG
Replies: 7
Views: 2198

Re: THRUST RIG

I have tried various methods to measure thrust , none of them “as yet” really work well , The photo shows something I am considering, I have no intention of starting the great thrust rig argument up again, just would like some feedback to see if it is worth doing Hi Grim: I can assure you (and Mike...
by hinote
Tue Dec 16, 2008 3:37 am
Forum: Valved pulsejet forum
Topic: Tenney's rotary Dynajet
Replies: 15
Views: 4419

Re: Tenney's rotary Dynajet

Hey Bill how are you? hope all is well with you and yours. Hi, back to you--and Happy Holidays to you (and the rest of our fellow PJ enthusiasts)! I wish I could report that all is well, but the US financial situation and a puffed-up, uncaring, BMW M-series driving financial officer have created a ...
by hinote
Tue Dec 16, 2008 12:23 am
Forum: Valved pulsejet forum
Topic: Tenney's rotary Dynajet
Replies: 15
Views: 4419

Re: Tenney's rotary Dynajet

Hi Mike love that one, must be a bit of pressure gain with it going around and around like that ;-) self starting too I shouldn't wonder. the other wonder is we have not seen it before! all those terabytes are a pain to sift through at times but I do love the way he mounted the valve head Viv I can...
by hinote
Mon Dec 15, 2008 1:07 am
Forum: Jet Vehicles, All Types
Topic: Pulsejet-powered sailplane
Replies: 10
Views: 6518

Re: Pulsejet-powered sailplane

At an assumed glide ratio of 50:1 and a gross weight in the 800-850 lb range (typical for a modern 18-meter sailplane), the thrust required would be on the order of 16-17 lbf--hardly spectacular, and more of a testament to the airframe's performance than the engine. BTW just so yous guys can get a ...
by hinote
Sun Dec 14, 2008 11:25 pm
Forum: Jet Vehicles, All Types
Topic: Pulsejet-powered sailplane
Replies: 10
Views: 6518

Re: Pulsejet-powered sailplane

http://www.lange-flugzeugbau.com/htm/english/products/antares_18p/antares_18p.html Some dubious claims here. The engine is said to represent " the leading edge of a family of jet engines, which can be traced back through more than 60 years of German aviation technology ". Haw-haw-haw... Interesting...
by hinote
Thu Dec 11, 2008 3:02 am
Forum: Gas turbine forum
Topic: turbine blade source
Replies: 22
Views: 6220

Re: turbine blade source

would it be possiable to make good turbine blades by cutting a pipe of sufficient metal in thirds long ways, and depending on the angle of blade you need, get a pipe of larger or smaller radius? To cut it in thirds is just an example number, it would depend on how large a blade you are looking for....
by hinote
Fri Oct 31, 2008 5:33 pm
Forum: Off topic forum
Topic: Death of jetZILLA Predicted
Replies: 25
Views: 10940

Re: Death of jetZILLA Predicted

You just knew it would happen ... Larry: Are you being unfairly singled out? There's all kinds of similar mods on the original name. Among these are: BRIDEZILLA HOGZILLA AMPZILLA --to name just a few; some are commercially applied and some not. I would contend that the original usage has become so ...
by hinote
Mon Oct 20, 2008 10:00 pm
Forum: Valveless pulsejet forum
Topic: Messerschmitt design?
Replies: 11
Views: 4051

Re: Messerschmitt design?

I might suggest that this is a fairly "ambitious" first weld, particularly WRT the variable geometry nozzle part, but also the perforated flameholder liner and - well - pretty much all of it. Based on my years of TIG welding (and I'm still learning the skill) I'd recommend that you do a lot of prac...
by hinote
Mon Oct 20, 2008 8:15 pm
Forum: Valveless pulsejet forum
Topic: Mike's Build Log
Replies: 379
Views: 119966

Re: Mike's Build Log

Not a bad percentage of max, I'm thinking. Yours has a better potential for lower SFC than my 1.55L scale up of the pocket jet, which got 6.5 lb. (Larger CC, straight pipe tail) This is a development project, based on my successful M41E project (which you saw running at one of our "mini-meets"). Th...