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Author Topic: Last American team to hold the official ALSR Blue Flame Oct 23 1970 622.407mph  (Read 79969 times)
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MAYOMAN
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« Reply #135 on: February 05, 2018, 11:26:47 PM »

Here is the wind tunnel model and the various optional aerodynamic configurations along with the resulting drag curves.

* tunnel drag characteristics.pdf (286.26 KB - downloaded 58 times.)

* aerodynamic model options.JPG (110.19 KB, 770x616 - viewed 87 times.)
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ggl205
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G/FL 218.282 since 1995. G/FL record since 1993.




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« Reply #136 on: February 06, 2018, 11:13:13 AM »

Dick, what were the measurement values on the horizontal scale? I assume velocity but by what measure?

John
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Stainless1
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Robert W. P. "Stainless" Steele Wichita, Kansas



« Reply #137 on: February 06, 2018, 12:22:32 PM »

John, looked like Mach to me... they were swinging for the fences.... probably could have been there with smarter sponsors
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Stainless
Red Hat 228.039, 2001, 65ci, MSA Bockscar Lakester with a little N20 
MSA Bockscar Lakester #1000 my fastest mile 245 and change, 84 ci turbobusa motor... but Corey's 233 MPH H/BFL record is still 3MPH faster than mine.
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« Reply #138 on: February 06, 2018, 12:41:18 PM »

Vertical scale is drag coefficient (CD) and horizontal is Mach number (M). At 0.9M, the CD was .35 with the faired wheels and support structure, but .43M with the final open wheel configuration. That would have been about our peak velocity in the mid-mile/kilometer speed traps, which was 660 mi/h. Instrumentation showed The Blue Flame was stable, as if on rails, throughout the high speed runs. In fact, tire wear was non-existent from the 24 runs. One rear tire was replaced when it skidded on braking, while towed in the service area, at around 30 mi/h and showed a tiny flat spot. The two front tires were replaced early when a slow leak (probably O-rings in the wheel) occurred in one. We just replaced both as a caution. The 4th tire remained on The Blue Flame for every run and looked new when we were finished. I believe Goodyear kept that one on display in Akron. We would have uprated the rocket to 22,000 lb thrust the next year and tried for Mach 1+, but, since we didn't own the car any longer, the sponsor put it on the exhibition tour and then "sold" it to the Shell Oil executive in Europe so we couldn't run it again. Now the shell of The Blue Flame remains in Sinsheim. So, 0.9M was it for The Blue Flame. Not too bad for a bunch of "cheese heads".
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« Reply #139 on: February 06, 2018, 03:21:40 PM »

OK, just finished reading Morel's Masters thesis. Yes, those were Mach numbers and should have guessed as much considering the vehicle. But I thought Morel achieved a Cd of .23 for "The Flame"?

John
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MAYOMAN
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« Reply #140 on: February 06, 2018, 04:19:47 PM »

The .23 CD was the initial calculation before the wind tunnel tests. Gee, too bad we didn't have CFD back then. Mostly slide rules, electro-mechanical calculators, paper and pencil. Well, ink and vellum if you had money to burn. Just watched the Tesla automobile ROCKETED into orbit. Who has the fastest car now?
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« Reply #141 on: February 06, 2018, 07:29:48 PM »

Just watched the Tesla automobile ROCKETED into orbit. Who has the fastest car now?

I just watched the news and thought WTF when they said they launched the car into space. shocked One way or are they going to bring it back?

Johnboy
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John Gowetski, red hat @ 221.183 MPH MSA Lakester, Bockscar #1000 60 ci normally aspirated w/N20
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« Reply #142 on: February 06, 2018, 08:06:08 PM »

Elon Musk says the Tesla roadster, top down, will fly past Mars and on to the universe. The instrument panel display was priceless, stating "Don't Panic!". I wonder if the car had batteries installed. I doubt NASA would have that sense of humor.
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manta22
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« Reply #143 on: February 06, 2018, 08:16:13 PM »

The .23 CD was the initial calculation before the wind tunnel tests. Gee, too bad we didn't have CFD back then. Mostly slide rules, electro-mechanical calculators, paper and pencil. Well, ink and vellum if you had money to burn. Just watched the Tesla automobile ROCKETED into orbit. Who has the fastest car now?

They have to make a backup run.  grin

Regards, Neil  Tucson, AZ
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Regards, Neil  Tucson, AZ
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« Reply #144 on: February 06, 2018, 08:25:53 PM »

BTW - here is the display panel en route to Mars
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« Reply #145 on: February 06, 2018, 08:27:08 PM »

this time I'll add the photo


* dont panic display.jpg (116.25 KB, 600x336 - viewed 83 times.)
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« Reply #146 on: February 08, 2018, 12:07:15 AM »

Wonder how long the camera's will work... it is a view through the windshield that only 1 car will have.  I think it has a "built on earth by humans" tag on it as well  wink
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Stainless
Red Hat 228.039, 2001, 65ci, MSA Bockscar Lakester with a little N20 
MSA Bockscar Lakester #1000 my fastest mile 245 and change, 84 ci turbobusa motor... but Corey's 233 MPH H/BFL record is still 3MPH faster than mine.
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« Reply #147 on: February 08, 2018, 10:09:19 AM »

While the car and builder / driver don't seem to attract much attention in this forum, McGlashan's Aussie Invader 5R seems to follow many of the design principles established by the Flame.

They don't seem close to running, but they are making progress.  They haven't said much about the rocket engine lately, so my guess is that this problem isn't solved, funded, or both.

I'm not on The Book of Face but that's how they are sharing project updates - https://www.facebook.com/AussieInvader.
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Seldom Seen Slim
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« Reply #148 on: February 08, 2018, 11:16:26 AM »

Thanks for the mention about Roscoe in Australia.  I do get his monthly updates - and am trying to figure out what I've done with 'em.  I had it firmly in mind that I was doing something besides reading them.  I'll see if I can convince Bob to put them someplace easy to find. . . if he isn't already.
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Jon E. Wennerberg
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« Reply #149 on: February 08, 2018, 11:41:03 AM »

Glad to be of service Smiley  I'm pretty sure Rosco has stopped producing the monthly updates, indicating that their preparation was taking too much time, and that he was going all in on The Book of Face.

While you are over there check out the final items on the parts list.  I think he's got them already!

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