Calculating top speed on ice...

[Johansson]

A harder track is necessary for any higher speeds with jet propulsion, the slightest resistance and it affects the speed.

The fastest run of the weekend was made on a turbocharged Hayabusa, somewhere around 340km/h in top speed but it wasn´t official since the GPS failed to record it. Very impressive on that track!

[Johansson]

http://www.youtube.com/watch?v=_Ec3TS9RitA

[metiz]

Dude! what the hell did you do! what a waste man. couldn't you have sold it of or something?

[Johansson]

Moahaha!

[Fricke]

Exactly the same I do with my "failed" stuff... Hope that you have better luck next year!!!

[metiz]

Yeah but...but...it's...and...you know...but....Nóóóó! watching that video is like being kicked in the gonads man!

[Bruce Simpson]

http://www.youtube.com/watch?v=_Ec3TS9RitA

What are you trying to say?

[Johansson]

http://www.youtube.com/watch?v=_Ec3TS9RitA

What are you trying to say?

No hidden message, just a more interesting end to the project than putting it on a sheft.

It was folded and dented from the rear support and I had no plans to continue working on it. It is also easier to store this way.

[metiz]

Stainless is expensive. you could have reused some of that engine's steel...

[Johansson]

I´d rather pay the extra buck than having to straighten out work-hardened stainless cones...

[metiz]

ok fair enough but you still could have made a smaller engine by simply putting, say, the tailcone template on the TC tailcone and cutting it out. All you had to do then would be to roll the piece a bit further and re weld

[Johansson]

Frankly I think that I am done with pulsejets, I have started working on a large gas turbine and will most likely stick to turbines from now on. I cannot get my head around all the workings inside a pulsejet and I don´t see much fun in building things that I cannot completely figure out.

[metiz]

Frankly I think that I am done with pulsejets

[Johansson]

It seems as I have to clarify that flattening the engine was no kind of statement or comment to the designer whom we all know, the engine itself performed fine but I had severe problems with the liquid fuelling at the low temps here in Sweden and after X months of testing and a race where the engine folded before I got to the start I just got deadly tired of pulsejets and felt a need to put an end to this project and start anew.

Sorry if I have upset anyone, but if so close your eyes and say to yourself ten times in a row: It´s only sheet metal, it´s only sheet metal etc etc...

[metiz]

Yeah and people are only carbon molecules

Hehe it's understandable that you are sick and tired of pj's after all the effort you put into it but reconsider ditching the hobby altogether. I've heard you mention in a tread that you spend xhundred dollars on some turbo's....just think of all the pj's you can make for that kind of money!

You also mentioned that you couldn't realy enjoy a hobby that you didn't understand....Like that ever stopped me; hell I still don't understand half of it and less still of the maths involved - screw that, I don't use ANY maths, realy.

just get it out of your system and continue with slightly less challenging .0001 micron tollerance models. (and use 1mm sheet: it doesn't buckle! )