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References: [ +subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*\[Land\-speed\]\s+\[BULK\]Re\:\s+Polar\s+Moment\s*$/: 16 ]

Total 16 documents matching your query.

1. Re: [Land-speed] [BULK]Re: Polar Moment (score: 1)
Author: "Keith Turk" <kturk@ala.net>
Date: Tue, 15 Jan 2008 22:20:20 -0600
I put the ballast where it fits.... keep the car as equal as reasonable... and simply drive what we get.... maybe we are just lucky eh? Hmmm Keith ( in other words while interesting...racing and expe
/html/land-speed/2008-01/msg00173.html (7,164 bytes)

2. Re: [Land-speed] [BULK]Re: Polar Moment (score: 1)
Author: Don McMeekin <landspeed@columbus.rr.com>
Date: Wed, 16 Jan 2008 01:03:13 -0500
In all honesty most of us probably do what Keith does regarding the placement of ballast. But personally I want people to think that its not that easy to get one of these things to go fast and straig
/html/land-speed/2008-01/msg00174.html (8,317 bytes)

3. Re: [Land-speed] [BULK]Re: Polar Moment (score: 1)
Author: "Ed Weldon" <23.weldon@comcast.net>
Date: Tue, 15 Jan 2008 23:20:29 -0800
I mentioned polar moment mainly because deliberately moving the engine back like they do to improve handling in road cars is really counterproductive in most cases in our LSR cars. But how much? We'r
/html/land-speed/2008-01/msg00175.html (8,213 bytes)

4. Re: [Land-speed] [BULK]Re: Polar Moment (score: 1)
Author: Greg Meyers <advo@comcast.net>
Date: Wed, 16 Jan 2008 08:15:55 -0600
Actually, I believe that the Wright brothers were making small models and affixing them to the end of beams which were jutting forward from moving vehicles (bicycles?...). One of the problems though,
/html/land-speed/2008-01/msg00176.html (7,269 bytes)

5. Re: [Land-speed] [BULK]Re: Polar Moment (score: 1)
Author: "Tom Bryant" <saltracer@awwwsome.com>
Date: Wed, 16 Jan 2008 09:15:13 -0800 (Pacific Standard Time)
It is a lot easier to put the ballast where it should be then to repair the car. My advice is to find a way to put at least 51% of the total weight on the front axle. In some cases, more may be bette
/html/land-speed/2008-01/msg00177.html (8,649 bytes)

6. Re: [Land-speed] [BULK]Re: Polar Moment (score: 1)
Author: "Keith Turk" <kturk@ala.net>
Date: Wed, 16 Jan 2008 11:39:15 -0600
Tom while I agree with you in theory... the Berkeley wants most of it's weight on the back wheels.... why... I have no idea... but it does... doesn't show up like that in a wind tunnel... but there y
/html/land-speed/2008-01/msg00178.html (8,896 bytes)

7. Re: [Land-speed] [BULK]Re: Polar Moment (score: 1)
Author: <neil@dbelltech.com>
Date: Wed, 16 Jan 2008 10:51:33 -0700
I've often wondered if I could investigate the aerodynamics of a design by using a scale model in water instead of air. The drag effects, etc should show up at quite low speeds in water compared to
/html/land-speed/2008-01/msg00179.html (9,727 bytes)

8. Re: [Land-speed] [BULK]Re: Polar Moment (score: 1)
Author: drmayf <drmayf@mayfco.com>
Date: Wed, 16 Jan 2008 10:31:55 -0800
Water tunnels are used a lot. So this idea seems good to me. But there are some issues to contend with. You need to do a dymnamic similitude analysis to determine the relationshipos between the water
/html/land-speed/2008-01/msg00182.html (10,958 bytes)

9. Re: [Land-speed] [BULK]Re: Polar Moment (score: 1)
Author: <neil@dbelltech.com>
Date: Wed, 16 Jan 2008 11:48:33 -0700
I'd go underwater with a diving mask and a stopwatch encased in a ZipLoc bag. I suppose you could use a light- beam to do the timing if you wanted to get fancy. I think the most value from this hare
/html/land-speed/2008-01/msg00183.html (11,640 bytes)

10. Re: [Land-speed] [BULK]Re: Polar Moment (score: 1)
Author: "Ed Weldon" <23.weldon@comcast.net>
Date: Wed, 16 Jan 2008 10:54:56 -0800
Water is mostly laminar flow. Air is turbulent. Big difference. That said, it wouldn't be all that hard to pack a 1:25 model body with lead wheel weights and mount the wheels on little free tunning
/html/land-speed/2008-01/msg00184.html (9,770 bytes)

11. Re: [Land-speed] [BULK]Re: Polar Moment (score: 1)
Author: <neil@dbelltech.com>
Date: Wed, 16 Jan 2008 12:10:45 -0700
There can be turbulent flow in water too-- look at a boat propeller. A simple "beam breaker" system should suffice for timing-- it works for the SCTA and NHRA. I wonder if a smooth ramp would simula
/html/land-speed/2008-01/msg00187.html (10,547 bytes)

12. Re: [Land-speed] [BULK]Re: Polar Moment (score: 1)
Author: "joseph lance" <jolylance@earthlink.net>
Date: Wed, 16 Jan 2008 14:17:21 -0500
Interesting idea, you're talking about a "similitude" experiment--trying to get comparable results with different fluids (air & water). But it would require using the analytical aerodynamic characte
/html/land-speed/2008-01/msg00189.html (10,442 bytes)

13. Re: [Land-speed] [BULK]Re: Polar Moment (score: 1)
Author: <neil@dbelltech.com>
Date: Wed, 16 Jan 2008 12:22:23 -0700
You might be able to do this but just simple tests between two or more shapes in the same medium (water) is more of what I had in mind. Testing different ideas such as does a pointed nose have lower
/html/land-speed/2008-01/msg00191.html (10,989 bytes)

14. Re: [Land-speed] [BULK]Re: Polar Moment (score: 1)
Author: Bryan Savage <b.a.savage@wildblue.net>
Date: Wed, 16 Jan 2008 17:16:08 -0800
Smokey swore by water testing. He had a small stream behind his shop. _______________________________________________ Support Team.Net http://www.team.net/donate.html Land-speed mailing list http://a
/html/land-speed/2008-01/msg00201.html (8,557 bytes)

15. Re: [Land-speed] [BULK]Re: Polar Moment (score: 1)
Author: "don thigpen" <piggy@accessatc.net>
Date: Wed, 16 Jan 2008 21:29:50 -0500
small stream behind smokeys shop ? that " stream " is the intracoastal when i was young my boss would take me with him on visits to that " best dam garage in town " i was in awe of smokey and he was
/html/land-speed/2008-01/msg00203.html (8,484 bytes)

16. Re: [Land-speed] [BULK]Re: Polar Moment (score: 1)
Author: drmayf <drmayf@mayfco.com>
Date: Wed, 16 Jan 2008 08:18:58 -0800
Automotive Aerodynamics can be a booger! As mentioned below, the effects of the ground are profound. When using a wind tunnel, if the tunnel doesnot have a moving ground plane that mimics the speed o
/html/land-speed/2008-01/msg00270.html (13,216 bytes)

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