And yet the first thing that perhaps 90%+ of motorcycle owners do is immediately slap on an illegal/unapproved muffler to make the machine "louder" so it "performs" better.
But after the last decade or two of motorcycles pounding the eardrums out of the mass population, some communities have decided they have had enough. And those cities and towns are well posted that if you violate exhaust rules, there will be harsh penalties (large fines).
The wonderful Morphing Thread. I swear, all I did was to go out and check the mail and come back to find we are now talking about exhausts/noise.
HIGH THREAD DRIFT CURRENTS AHEAD:
Interesting thing going on in some cities and towns where I live, regarding aftermarket exhausts and LEOs. A twist of the application of the law for a totally unintended consequence.
Exhausts, just like vehicle outside lighting, etc., are all type certified by DOT. The exhaust systems on motorcycles have a very small stamped number showing that they are type certified for, say a C-14 (but not a ZX 14: swapping one for the other is NOT legal). Now normally LEO's just do not bother with this at all. But after the last decade or two of motorcycles pounding the eardrums out of the mass population, some communities have decided they have had enough. And those cities and towns are well posted that if you violate exhaust rules, there will be harsh penalties (large fines). Now for the twist: LEOs stop excessively loud motorcycles of a type and brand we all know, then look at the exhaust for that type certification.... and of course, as an aftermarket system, it is not here. And then the truly painful ticket for a non- conforming exhaust. Note that they are never charged / fined / accused for excessive noise.
This system actually works and seems to be, so far, a workable loophole. Now, it is in fact the noise that causes the stop in the first place, and the actual desire to cause the fine but is not used as a reason because there are strict parameters for a noise test. But the same check is just not performed on any motorcycle that does not rattle anyone's windows on the way by. I guess we could call it 'selective enforcement' of a valid law.
Over the last few years this really proving to be effective; those two cylinder, miss- timed thumping bikes may still have a bit of a growl but nothing like it used to be.
It ain't quite right, and is not and never was the intent of the law but it does work and so far, has not been challenged as discriminatory. Probably all because those running at 100+ decibels know they are 'coloring outside the lines' in the first place. Plus it is hard to challenge the fact that excessive noise was probable cause for a stop but was not used in any way to issue a citation.
Brian
I certainly wish they would do that here. And throw in boom-box cars, too.
Since this topic seems to be wandering, I'll throw in a related (hopefully amusing) tale...
<snip>
Disclaimer : I won't normally suggest any sort of vigilante action, but with 2 toddlers in the house being woken up every other night for a couple weeks by these guys, and having the bylaw officer not showing up on any of several occasions, I was angry enough to implement this plan. Fortunately it worked.
Jamie
Well, seeing as we do not seem to be dealing with math much, let's move onto the nerd part.
The Coriolis effect is usually very difficult to detect, does not generally make itself obvious and we just about ignore it. But now and again, it shows up and when it does, is almost always is a big enough problem that it cannot be ignored.
Artillery always has to contend with the Coriolis effect, and the longer than range, the worse the effect. The worst case would be the longest range gun ever used, know as the Paris gun used to shell Paris (duh) by the Germans, from behind their lines, during WWI. The gun had a range of just over 80 miles (!!!) and the projectile had a flight time of three minutes. The Coriolis effect is really quite simple: as the Earth rotates, what appears to be a fixed target, such as Paris (it does not appear to be moving), actually is moving and travels a significant distance during that gun's projectiles' travel time. Calculations show that without compensating for this effect, the point of impact would be moved ~ one kilometer, well over 1/2 mile, from point of aim.
For all your nerdiness needs: http://www.vcsp.info/Chapter_8/Application_to_Long-Range_Artillery_-_Shelling_Paris_in_WW1/Shell_Trajectory_in_Atmosphere_on_a_Rotating_Earth.aspx
And that was not a big gun such as Schwerer Gustav was either.
Brian
So we need to know if Tree was traveling along a longitudinal or on a latitude line to figure out if the corollas effect effected his mileage to more accurately determine the break even point with the flash
Well, seeing as we do not seem to be dealing with math much, let's move onto the nerd part.
The Coriolis effect is usually very difficult to detect, does not generally make itself obvious and we just about ignore it. But now and again, it shows up and when it does, is almost always is a big enough problem that it cannot be ignored.
Artillery always has to contend with the Coriolis effect, and the longer than range, the worse the effect. The worst case would be the longest range gun ever used, know as the Paris gun used to shell Paris (duh) by the Germans, from behind their lines, during WWI. The gun had a range of just over 80 miles (!!!) and the projectile had a flight time of three minutes. The Coriolis effect is really quite simple: as the Earth rotates, what appears to be a fixed target, such as Paris (it does not appear to be moving), actually is moving and travels a significant distance during that gun's projectiles' travel time. Calculations show that without compensating for this effect, the point of impact would be moved ~ one kilometer, well over 1/2 mile, from point of aim.
For all your nerdiness needs: http://www.vcsp.info/Chapter_8/Application_to_Long-Range_Artillery_-_Shelling_Paris_in_WW1/Shell_Trajectory_in_Atmosphere_on_a_Rotating_Earth.aspx
And that was not a big gun such as Schwerer Gustav was either.
Brian
So if I could hover in the air over a fixed spot for a few days, does that mean that spot will eventually move away from me?
Should be a fedgov subsidy for the flash since it improves mileage therefore reduces the carbon footprint.... for sure the Flashing developers have tested all those compete emissions to be in compliance with EPA and EU Directives .... probably they sell the magic Flash just to be used just on the race tracks
... for sure the Flashing developers have tested all those compete emissions to be in compliance with EPA and EU Directives .... probably they sell the magic Flash just to be used just on the race tracks
... for sure the Flashing developers have tested all those compete emissions to be in compliance with EPA and EU Directives .... probably they sell the magic Flash just to be used just on the race tracks
For some it is time to get Leaded Gas, no Sulfur restriction, no APC systems, open exhausts, etc... for those it will be the time to smell those exhausts.
... for sure the Flashing developers have tested all those compete emissions to be in compliance with EPA and EU Directives .... probably they sell the magic Flash just to be used just on the race tracks
For some it is time to get Leaded Gas, no Sulfur restriction, no APC systems, open exhausts, etc... for those it will be the time to smell those exhausts.
The corollas effect doesn't have as much to do with the fact that the target is moving (so is the gun) but the fact that due to the curvature of the earth it is moving at a different rate if it is at a different latitude.
wow, can we buy leaded gas again? I'll have to get rid of the cat but it'll be worth it.
wow, can we buy leaded gas again? I'll have to get rid of the cat but it'll be worth it.
So if I could hover in the air over a fixed spot for a few days, does that mean that spot will eventually move away from me?
Absolutely, and you always could. Stop by the local airport and pick up some 100 octane LL AvGas. The LL stands for Low Lead but do not let that fool you- there is a lot of lead in the stuff, just like in the olden' days. Get all you want, bring money.Aerodromes arent supposed to sell avgas for road use.
Brian