Landspeed bike with DIY gas turbine

[pitciblackscotland]

Awesome Anders all those mods have paid off. This will show people out there what a DIY jet bike can do.

Cheers,
Mark.

[racket]

Hi Anders

306 kph- 190 mph .......LOL, reasonable ;-)

Congratulations my friend , I'll be eagerly awaiting the "autopsy" on the engine, and video/s of the run/s...............not far to 200 MPH now :-) ...............an extra half mile of tarmac and you'd be there.

Its Fathers Day here in Oz today , I'm feeling a very proud "father" :-)

Cheers
John

[Johansson]

Thanks a lot!

The day couldn´t have been any better, awesome weather, awesome runs by many racers (one finnish guy ran 402km/h with his turbo-Hayabusa!) and the bike performed although it sang on its last verse.



First off I ran a 295km/h run with a crappy start, so we decided to try again to get past 300km/h without water injection. The injectors bottoms out at 2.4bar so I am a bit short on fuel but the second start is great and the front wheel feels like it is lifting from the track when I take off. Unfortunately the oil is heating up and the pump can´t keep the pressure over the 3kg that the safety pressure switch is set at so the fuel pump shuts down and aborts the run.



After some consideration I decide to lower the switch pressure to 2kg just to get another run out of the engine, it runs crazy hot and I knew it wouldn´t survive the weekend so I didn´t care that the thrust bearing might get toasted by this. At the last moment I also decided to run the water injection since I hoped it would lower the temps a tad.



I got off by yet another crappy start since the high flow of water spray made the engine flutter at low P2´s, so I let the brakes go and crammed the trottle as soon as I got off the starting line. The bike ran perfectly all through the run (although at just 2.4bar P2) but it was white glowing hot when I stopped...



Now I´ll finish off my glass of scotch and go to bed, been up since 04.00 this morning so I am a bit tired.



Cheers!
/Anders

[racket]

Hi Anders

What a sweet sound at full power and speed, love it :-)

Cheers
John

[Johansson]

Sept 2, 2017 17:41:28 GMT -5 racket said:

Hi Anders

What a sweet sound at full power and speed, love it :-)

Cheers
John

I can´t stop thinking about what JU-02 will sound like at 5bar P2...

One thing I´ve been thinking about while driving home tonight concerns the JU-02 installation in the bike. Will the C20 turbine wheel be the restricting part in the drive train or will it cope with the flow?

If a C30 wheel is better even by a hairs width I will fit one of those instead now that I have the chance, there is no cutting corners at this point in my opinion. I need to extract every single bit of power from the JU-02 to get a fair chance to beat the electric bikes in my class.

Cheers!
/Anders

[racket]

Hi Anders

The C20 wheel will be OK, the C30 will be too large , actually a 2 stage freepower is probably what you need because of the extra pressure you'll have going into the freepower stage , there'll be some "wasted??" energy from the higher gas speeds you'll have with a single stage , it'll be more important than ever to maximise the rpm to "balance" those gas speeds .

If all goes as planned, your air mass flow will be some 30% more than at present , but your pressures/densities/speeds will be higher to "compensate" for the same freepower flow area , she'll be right :-)

Cheers
John

[CH3NO2]

That is so sick.
Congratulations Anders!

BTW - Instead of injecting water, try injecting 35+% Hydrogen Peroxide. Its a good hydroxyl radical burn rate catalyst and it adds oxygen and enthalpy to the system.

For even more energy, add 10% methanol w/w to the 35% Hydrogen Peroxide and it makes a stoichiometrically balanced monopropellant to carry it's own energy.
Non-flammable and non-detonable. Decomposition temperature ~900'F.

Tony

[Johansson]

That sounds perfect John, I think we´ve discussed this before but my memory fails me from time to time.

Tony, I would just love to see the tech inspector faces when I tell them what you just said...

Here is a riders view of the 306km/h run, temps are mad and P2 is too low since the injectors are bottomed out. Still a decent run.



Cheers!
/Anders

[finiteparts]

Congratulations Anders on another wonderful run! That looked and sounded amazing!

Chris

[Johansson]

Sept 3, 2017 13:51:19 GMT -5 finiteparts said:

Congratulations Anders on another wonderful run! That looked and sounded amazing!

Chris

Thank you Chris!

[Johansson]

The results just came out, I laughed loud when I saw that I outran the 1500hp Dodge Viper... :-D



Cheers!
/Anders

[racket]

Hi Anders

A top 10 finisher :-)

I've enjoyed your ride a dozen times , LOL...keep going back for just one more .

Acceleration times were very good for a single speed gearbox , 0 to 100 kph in ~4 seconds , only another 3 secs to 150 , so a tad over 7 secs for zero to 100 MPH , not bad ................. acceleration still fairly consistent with only another 4 secs from 150 to 200 kph and only 5 secs more to 250 , still pulling strong , then as your terminal velocity was approaching she slowed down taking another 9 secs for the 250 to 300 ...............looks like gearing was just about spot on .

But those temperatures are still a "mystery" to me ............its a wonder theres any blades left on either the gas producer or freepower wheels , T I Ts would have had to be ~1,250 deg C :-(

A bit of a glow for the interstage duct would be OK , if ~900 C for a T I T , say 750 C interstage , this would give some "colour" and certainly leave the freepower with a nice red glow at the end of a run if ~600 C for the exhaust temp.

Looking forward to seeing what she looks like inside .

Cheers
John

[Keith LeBlanc]

Congrats, Anders! What a run!

[sven]

Nice Anders you got it, Im very happy for you!

[CH3NO2]

Hi Anders,

When you get the JU-02 installed put the bike on a dyno. It would be awesome to see how the JU-02 produces its power curve.