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mirror70

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Posts posted by mirror70

  1. As for my gender, given BOL's family, I mean pub, atmosphere I won't post the pics that would categorically prove that I am in fact a "she." (We did have fun taking them though!)

    Given the pub atmosphere, I could post some pics that would categorically confuse whether or not I am in fact a "she." Then again, Jack did seem to say that we should all avoid being the drunk guy with the pitcher :) It was a fun night though... :eek:

  2. Looks like I missed some fun threads :)

    John - your comment about using a real name and accountability is dead-on. When I used to operate a couple of forums on CompuServe, everybody was vastly more civil when required to post using their real names. The difference was night and day.

    The anonymity of the internet brings out the belligerent arse-hole in everyone.

  3. This also reminds me of how Audi was nearly driven out of business in North America due to piece done by 60 Minutes regarding a couple of "unintended acceleration" incidents in which the drivers were simply pushing the wrong pedals. 60 Minutes, of course, said that the car were clearly mechanically flawed and the throttles were sticking. The courts and NHTSA sided with Audi saying that it was 100% driver error, but by then the damage had already been done.

  4. How do you do that? I mean, seriously, how slowly does your mind have to be working for that to happen?

    She had to have slammed her foot on the gas, not noticed how her head almost slammed into the wheel from the jerk, ignored the screech of the tires, done some steering, and wondered wtf was happening, all before she went airborne and took her foot off of the gas. This whole event probably took 5 or 6 seconds - how could she not notice that something bad was happening for that amount of time??

  5. Originally posted by Justin A.

    Anybody from the skiing is faster side care to dispute this?

    Skiing is faster by all measures. End of story.

    Snowboarding, however, is more fun (that's why we're all here, right?).

    Your physics is wrong, btw. I can explain over AIM if you want.

  6. Originally posted by Jack Michaud

    Bah - a monoshock system similar to a motorcycle's could have handled the weight. The Honda Goldwing is pushing 800lbs, and is intended for 2 riders - as are 99% of all bikes. I'd also be surprised if body roll dictated the use of twin-shocks.

    Even if sourced from a big bike like that, probably not. The T-rex is a 3-wheeled go-kart, not a luxo-cruiser. The very stiff spring would quickly burn out the shock, which is valved for a softer spring with lower speed travel (and more of it). If they're going to need custom valving on the shock, they may as well just go with a different design that could use off the shelf parts.

    If there were a workable monoshock solution, there would still be some packaging issues because you're sitting on front of the engine, not behind it.

    An interesting place for a monoshock would be in the front, where it would allow for independent control of the roll and wheel rate, such as what Formula Renault and Formula BMW use (among others).

  7. Originally posted by Frappe

    Probably needs to be twin shock to deal with the amount of weight coming back on it during acceleration, and to be able to change camber to deal with the car-type body roll from the front.

    Doesn't look like there is any camber change except as a result of the frame flexing and the body rolling.

    The twin shocks are there because of the extra weight of the vehicle. The extra weight means that a single shock/spring combo from a car could have been used, but there would be a heck of a lot of torque in the back if it had a spring on only one side - the car shock would have been to big to package in the middle. A single bike shock/spring wouldn't have handled the extra weight very well. With two passengers, it has about double the weight of the typical sportbike + rider.

  8. Originally posted by Bob Jenney

    Mirror - Yes. Landry's. But specifically the Framingham Shop. I used to work for those guys. In the last few years, they've become way more savvy with road bikes. I'd be happy to help in any way I can.

    In that case, I can attest to them being an excellent shop, at least from a n00b's standpoint (mine). I've been going there since they were in downtown Framingham, before they expanded into the second half of that shop, and obviously well before they opened up on Rt9. The staff there has always been very friendly and knowledgeable, and every time I've gone in there I've left the store happy, even if I didn't end up buying anything.

  9. Ghostrider - it's probably because proper SL boards are VERY quick, VERY snappy, and VERY unforgiving. My first day out on my F2 Speedster SL I went over the nose twice, with the second time being so quick and with so much pop that after hitting my head on the nose I actually landed upright and would have stayed up had I known WTF just happened. For this reason, very few people will recommend proper SL boards to anyone who hasn't ridden long enough to already have an idea of what one is like.

  10. Well, what if a mountain were to purchase and install the system, and then rent it the same way they rent hill time to teams? Many teams could then use the same system and also have a consistent set up of that system.

  11. For positioning data, you could also use magnets under the snow/at the gates and an inductor on the board, or vice versa. With only two bases + the board involved, you could narrow down the location of the board to two points, and since you know which side of the gate the rider is on, you could eliminate one of them.

    This is a similar system to the one Cadillac developed for driver-less cars, and also to one I worked on for landing pilot-less helicopters.

  12. Use differential GPS. Local accuracy of 3cm can be achieved that way - it's how large modern ships are docked now.

    The hard part I see if that you're measuring everything in a 6 DoF system with an ever-changing ground plane.

    How about a system to monitor board flex? I don't mean at a single point, I mean across and along the whole board. The next step in board design is to have an active dampening system, and the first step towards that is to figure out exactly wtf is happening with the board as you ride it. That's what this system would do.

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