12/130 HP Engine

[racket]

Hi Andy

Good spoolup :-)

What sort of P2 were you running at ??

Was the A/B doing the "machine gunning" or was it you doing multiple ignitions ??

Cheers
John

[andym]

Hello every one, so another day at the track.... think still work to do covers it... going to biuld a bigger afterburner... and add a few striaghtening vains after a Chat with john..The angine runs so well, just need to sort the afterburner out 

[andym]

Hello every one, lets try a little bigger 

[Johansson]

That is more like it!

Do you have any internal flame holders or is the turbulence enough to stabilize the flame?

[andym]

Hi Anders, just using pressure dump, 

[Johansson]

Nice!

Still a bit tricky to ignite though, have you tried hot-streaking it with the throttle?

Olov and I struggled with AB spark ignition on the jet kicks and on the last twin-turbo kick we found that the fastest way to get the afterburner running was to start the AB pump on full flow from high idle.

Then Olov would slam the throttle to 80-90% to get a flame tongue through the turbine stage, that got it ignited in seconds. No more unwanted smoke shows.

[andym]

May 19, 2024 15:32:31 GMT -5 Johansson said:

Nice!

Still a bit tricky to ignite though, have you tried hot-streaking it with the throttle?

Olov and I struggled with AB spark ignition on the jet kicks and on the last twin-turbo kick we found that the fastest way to get the afterburner running was to start the AB pump on full flow from high idle.

Then Olov would slam the throttle to 80-90% to get a flame tongue through the turbine stage, that got it ignited in seconds. No more unwanted smoke shows.

Hi, yep, its what i did in the end, still a little lean, and a tweak on the spark plug should help. but once it lit, its easier to keep going..... 

Off to the track 1st June ..... hoping to get some real times in 

[racket]

Hi Andy

No longer shiny :-(

Nice spoolup :-)

Love the growl at ~3 mins ............some serious thrust now .

Cheers
John

[andym]

Hello every one, as you will see in the video, the afterburner worked at the track  . I did think it left the line well... 72 at the 1/8th and 71 at the 1/4.... erm, yes i backed out a little.... still testing... need to drop pressure in the tyers.... the new track at Santa Pod.... is well, not as smoth as before, 

[racket]

Hi Andy

Progress :-)

Sounding sweet, nice bit of thunder as you went down the track

Cheers
John

[richardm]

Quite a lot of hot gases rising behind you. Looks like a fighter jet take off seen from behind.. Il like it The smell too must be a sweet perfume !

[richardm]

Quite a lot of hot gases rising behind you. Looks like a fighter jet take off seen from behind.. Il like it The smell must be a sweet perfume too !

[andym]

Hello every one,

Should of posted this video a few weeks back, other things going on... yes I backed out a little.... am glad I did, a few things needed addressing.... Tyre pessures need a little work, chassis is stable. Am off to Santa Pod 22nd, more to come 

Since this video, I have made a few little changes, am getting closer to full power aim of 70psi

Now I know the new design works, am making another one, with a lighter material thats able to deal with the heat a little better 



All The Best Every One

[andym]

Hello every one.... so day at the track, and glad to say.... thing went a little faster... But still not getting full power, so just brought a Aeromotive fuel pump.... not more start line pops and bangs.... get to the line and go, well until, I can find space for a few more litres....
 

[racket]

Hi Andy

Nice run :-)

Not far now to breaking the 100MPH in the quarter barrier :-)

Steady as she goes , you'll feel more comfortable as you put more runs under your belt .

Cheers
John