Landracing Forum Home
October 21, 2018, 12:31:53 AM *
Welcome, Guest. Please login or register.
Did you miss your activation email?

Login with username, password and session length
News:
BACK TO LANDRACING.COM HOMEPAGE
 
   Home   Help Search Calendar Login Register  


(Note: Donations are not tax deductible)







Live Audio Streaming and Archives of Past Events
Next Live Event: TBD
Pages: 1 ... 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 [84] 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 ... 119   Go Down
  Print  
Author Topic: APS/Ω Gas turbine bike build  (Read 534858 times)
0 Members and 2 Guests are viewing this topic.
Glen
Global Moderator
Hero Member
***
Offline Offline

Age: 83
Location: South West Utah
Posts: 6984

SCTA/BNI timer 1983 to 2004, Retired,. Crew on Tur



« Reply #1245 on: February 20, 2016, 04:55:15 PM »

Go Fast, be safe. Really pulling for you and a record. cheers
Logged

Glen
Crew on Turbinator II

South West, Utah
Mobacken Racing
Sr. Member
****
Offline Offline

Age: 37
Location: Östersund - Sweden
Posts: 832


Turbine junkie


WWW

Ignore
« Reply #1246 on: February 21, 2016, 01:03:48 AM »

Go Fast, be safe. Really pulling for you and a record. cheers

The jet kick hasn´t got what it takes for a shot at the jet class record, our friends with the pulsejet sled is close to breaking the 200km/h barrier and we can hope for a 150+ run if everything lines up. The unofficial jet kick record is set by another team that bought a gas turbine from a marine boat generator and converted it to thrust, they ran 170-something km/h a couple of years ago before crashing.

Our biggest enemy is, as always in this business, drag. For next year we need to make some sort of fairing for the kick if we want to go faster, it would be really fun to beat the jet kick record and with a slick fairing and 120kg of thrust we should be able to do it. smiley
Logged
Mobacken Racing
Sr. Member
****
Offline Offline

Age: 37
Location: Östersund - Sweden
Posts: 832


Turbine junkie


WWW

Ignore
« Reply #1247 on: February 23, 2016, 01:24:11 PM »

Only two days until Speed Weekend and the jet kick is ready to go, so I spent last night in the workshop on the JU-02 engine.

I made the shaft tunnel casting deliberately long until I knew the exact measurements of the engine, after assembling the axial bearing and fitting the turbine shaft I could measure how much I needed to remove. On the pic I have also started to make an alignment ring so I won´t have to use dowels.



With that done I made a stainless seat for the turbine shaft piston ring seal, I will weld it to the rear NGV wall later.



Arboring the hole for the ring seat.



Here the seat is pushed in place, I have some work left to do on the NGV wall before I can weld it.



The turbine shaft fitted in the seat to test the fit.



I reached some kind of mile stone 23:30 last night when I could assemble the diffusor plate and shaft tunnel with the rotor in place!



Cheers!
/Anders
Logged
saltwheels262
Hero Member
*****
Offline Offline

Age: 64
Location: cumberland plateau
Posts: 1064


LTA 7/2013




Ignore
« Reply #1248 on: February 23, 2016, 05:14:24 PM »

That the future played, rotor and shaft tunnel is a piece of art.

Good luck this weekend and ride safe.

Bf262
Logged

bub '07 - 140.293 a/pg   120" crate street mill  
bub '10 - 158.100  sweetooth gear
lta  7/11 -163.389  7/17/11; 3 run avg.-162.450
ohio -    - 185.076 w/#684      
lta 8/14  - 169.xxx. w/sw2           
'16 -- 0 runs ; 0 events -- made a 2 state change in ZIP codes

" it's not as easy as it looks. "
                            - franey  8/2007
Old Scrambler
Sr. Member
****
Offline Offline

Age: 71
Location: Plymouth, WI
Posts: 669


Going Fast - Slowly




Ignore
« Reply #1249 on: February 23, 2016, 05:43:09 PM »

Vertualy HAND-MADE.........marvelous, simply marvelous smiley
Logged

2011 AMA Record - 250cc M-PG TRIUMPH Tiger Cub - 82.5 mph
2013 AMA Record - 250cc MPS-PG TRIUMPH Tiger Cub - 88.7 mph
2016 AMA Record - 750cc M-CG HONDA CB750 sohc - 130.7 mph
2016 AMA Record - 750cc MPS-CG HONDA CB750 sohc - 137.7 mph
Chasis Builder / Tuner: Dave Murre
saltwheels262
Hero Member
*****
Offline Offline

Age: 64
Location: cumberland plateau
Posts: 1064


LTA 7/2013




Ignore
« Reply #1250 on: February 23, 2016, 06:19:29 PM »

That the future played, rotor and shaft tunnel is a piece of art.

Good luck this weekend and ride safe.

Bf262
I usually proofread.

~~ it should have read the diffuser plate, rotor and shaft tunnel ~~
       That will happen with voice commands.
Logged

bub '07 - 140.293 a/pg   120" crate street mill  
bub '10 - 158.100  sweetooth gear
lta  7/11 -163.389  7/17/11; 3 run avg.-162.450
ohio -    - 185.076 w/#684      
lta 8/14  - 169.xxx. w/sw2           
'16 -- 0 runs ; 0 events -- made a 2 state change in ZIP codes

" it's not as easy as it looks. "
                            - franey  8/2007
salt27
Hero Member
*****
Online Online

Age: 61
Location: S.W. Orygun
Posts: 1303





Ignore
« Reply #1251 on: February 23, 2016, 06:45:18 PM »

That the future played, rotor and shaft tunnel is a piece of art.

Good luck this weekend and ride safe.

Bf262
I usually proofread.

~~ it should have read the diffuser plate, rotor and shaft tunnel ~~
       That will happen with voice commands.

I like the first post, it sounded prophetic.   grin
Logged
Mobacken Racing
Sr. Member
****
Offline Offline

Age: 37
Location: Östersund - Sweden
Posts: 832


Turbine junkie


WWW

Ignore
« Reply #1252 on: February 24, 2016, 03:03:16 AM »

That the future played, rotor and shaft tunnel is a piece of art.

Good luck this weekend and ride safe.

Bf262
I usually proofread.

~~ it should have read the diffuser plate, rotor and shaft tunnel ~~
       That will happen with voice commands.

I was a bit curious about what you meant, now I get it.  grin

Thanks guys, I try my best to make the build interesting to follow despite the numerous closeup pics of engine parts unknown to any other than the builder himself. smiley

Cheers!
/Anders
Logged
bbarn
Sr. Member
****
Offline Offline

Age: 48
Location: Harmony, PA
Posts: 618





Ignore
« Reply #1253 on: February 24, 2016, 10:23:48 AM »

I don't know about the rest of the crew here but when I see a post in your build thread I get excited!!!!

It's a good day when you post updates Anders!
Logged

I almost never wake up cranky, I usually just let her sleep in.
Mobacken Racing
Sr. Member
****
Offline Offline

Age: 37
Location: Östersund - Sweden
Posts: 832


Turbine junkie


WWW

Ignore
« Reply #1254 on: March 01, 2016, 04:51:30 PM »

I don't know about the rest of the crew here but when I see a post in your build thread I get excited!!!!

It's a good day when you post updates Anders!

That is good to hear!  smiley

I just got home from Speed Weekend on Ice here in Sweden, I´ve posted some info in the landracing.se subforum but here is the friday movie where we ran 139.2km/h with the jet kick sled.



Not bad at all for a home built sled standing on the runners 2cm from the ground, but if it weren´t for oil pressure problems we could have gone much faster on Saturday when we increased both turbine revs and afterburner fuel rate dramatically. cool

Cheers!
/Anders


* 12795335_10154611706437586_636722956418692244_n.jpg (80.42 KB, 960x720 - viewed 183 times.)

* 12806020_10154611708352586_3480231920551901612_n.jpg (92.25 KB, 960x720 - viewed 182 times.)
Logged
tauruck
Hero Member
*****
Offline Offline

Age: N/A
Location: Johannesburg, South Africa
Posts: 4611





Ignore
« Reply #1255 on: March 02, 2016, 08:23:32 AM »

Rocket man!!!!!. That must be a wild ride. grin cheers cheers cheers
Logged

Buickguy3
Hero Member
*****
Offline Offline

Age: 74
Location: Columbus,Mt.
Posts: 1022





Ignore
« Reply #1256 on: March 02, 2016, 09:16:21 AM »

  If his feet slip, it'll be fried cajones.
  Doug  cheers cheers cheers
Logged

I keep going faster and faster and I don't know why. All I have to do is live and die.
                   [America]
Mobacken Racing
Sr. Member
****
Offline Offline

Age: 37
Location: Östersund - Sweden
Posts: 832


Turbine junkie


WWW

Ignore
« Reply #1257 on: March 05, 2016, 01:28:57 AM »

Actually it is a quite pleasant ride according to him, at least compared to the earlier jet kick we built that didn´t have a suspended engine cradle. That one was a wild ride, luckily it didn´t go much faster than 100km/h......
Logged
Mobacken Racing
Sr. Member
****
Offline Offline

Age: 37
Location: Östersund - Sweden
Posts: 832


Turbine junkie


WWW

Ignore
« Reply #1258 on: March 12, 2016, 08:44:18 AM »

I´ve been up to my neck in work since Speed Weekend but I managed to find a couple of minutes to reroute the oil tank vent line into some sort of ejector in the exhaust pipe, the idea is that this will maintain a slight under pressure in the tank to assist in scavenging oil from the engine and gear box.



Cheers!
/Anders
Logged
Mobacken Racing
Sr. Member
****
Offline Offline

Age: 37
Location: Östersund - Sweden
Posts: 832


Turbine junkie


WWW

Ignore
« Reply #1259 on: March 21, 2016, 06:06:08 PM »

Thanks to a hint from PorkPie I have reconsidered the ejector style oil tank vent, the risk of setting the oil smoke on fire and on top of that risk pulling oil up through the hose with the under pressure created I decided to make a separate ventilation instead. I spent a couple of hours in the workshop building a catch tank for the oil tank vent tonight.



Since my foot will be on the footpeg there isn´t room for a larger volume catch tank but I think this will do, a nice big breather filter on top will let any air trapped in the oil tank out quickly.



As soon as the weather improves and I find a couple of hours of spare time I will roll the bike out for a test start!

Cheers!
/Anders
Logged
Pages: 1 ... 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 [84] 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 ... 119   Go Up
  Print  
 
Jump to:  

Powered by MySQL Powered by PHP Powered by SMF 1.1.21 | SMF © 2015, Simple Machines
Simple Audio Video Embedder
Valid XHTML 1.0! Valid CSS!


Google visited last this page July 28, 2018, 04:10:03 AM