What sets it off??
Discussion
While not in full Stealth Bomber configuration my TVR has a range of tax avoidance devices. Tootling down the M6 yesterday around Lancaster the laser/radar device chirrrrped noticeably as I passed under a bridge in open countryside (not the door auto-opening/traffic light bleetering noise but not a great scream either). Didn't notice whether there was any traffic master type sensor and no obvious scamera van (although on the bridges in Cumbria north and southbound that day). Sometimes it seems to respond to TM type things, sometimes not. Is there an informed PHer out there who knows what induces the detector response? It so happens that for a change I was just mooching along but still a bit heart-stopping for the instant.......
Was then followed for a while by a large plodmobile carrier with most of Lancs Constabulary on board (a fine body of men - well the ones I occasionally have a pint with) - which then overtook with much grinning to give me an overthespeedlimit clear passage, at a sensible ,lead distance of course. Thanks guys. Light traffic perfectly safe and good driving behaviour all round. An interesting contrast to driver behaviour when the M6 is congested and 100mph tailgating in wet conditions commonplace. By observation bad driving seems to be a direct function of road congestion, and associated frustration and a sort of territorial 'claim' to the spatial boundaries around the vehicle. Speed of itself, adjusted to road conditions, is NOT the key problem in the cause of accidents, IMHO.
Cheers
Was then followed for a while by a large plodmobile carrier with most of Lancs Constabulary on board (a fine body of men - well the ones I occasionally have a pint with) - which then overtook with much grinning to give me an overthespeedlimit clear passage, at a sensible ,lead distance of course. Thanks guys. Light traffic perfectly safe and good driving behaviour all round. An interesting contrast to driver behaviour when the M6 is congested and 100mph tailgating in wet conditions commonplace. By observation bad driving seems to be a direct function of road congestion, and associated frustration and a sort of territorial 'claim' to the spatial boundaries around the vehicle. Speed of itself, adjusted to road conditions, is NOT the key problem in the cause of accidents, IMHO.
Cheers
streaky said:Some newer cars have tail lights consisting of LED clusters. These are fully on when the brake is applied, but flash on and off very quickly (quicker than the eye can see) when the dipped lights are on, hence appearing dimmer (pulse width modulated). Maybe these are triggering laser detectors?
Some brake lights - particularly those on the Range Rover - seem to trigger the LASER detector on my Origin B2 - Streaky
I find these flashy lights very distracting, same goes with the newer traffic lights.
supraman2954 said:
Some brake lights - particularly those on the Range Rover - seem to trigger the LASER detector on my Origin B2 - Streaky
Some newer cars have tail lights consisting of LED clusters. These are fully on when the brake is applied, but flash on and off very quickly (quicker than the eye can see) when the dipped lights are on, hence appearing dimmer (pulse width modulated). Maybe these are triggering laser detectors?
I find these flashy lights very distracting, same goes with the newer traffic lights.
Ive seen a similar thing with Road traffic lanterns.
A number of motorway bridges have fog detection equipment fitted. A beam is bounced from under the bridge onto the road surface back up to the detector. In clear visibility a max reflection is recorded, which reduces in the presence of fog (light gets refracted). Is used to control 'Fog' warning matrix.
kenp said:
A number of motorway bridges have fog detection equipment fitted. A beam is bounced from under the bridge onto the road surface back up to the detector. In clear visibility a max reflection is recorded, which reduces in the presence of fog (light gets refracted). Is used to control 'Fog' warning matrix.
Which is why occasionally you get the "FOG" matrix showing when its blue sky and sunshine - A spider has just built its web across the sensor....
Strange but true.
kenp said:
A number of motorway bridges have fog detection equipment fitted. A beam is bounced from under the bridge onto the road surface back up to the detector. In clear visibility a max reflection is recorded, which reduces in the presence of fog (light gets refracted). Is used to control 'Fog' warning matrix.
Maybe they should have fog light detector sensors, so that anyone using fog lights in conditions with greater than 100 yards visibility get zapped by a high powered laser beam which melts and destroys the fog lights instantly
>> Edited by ledfoot on Thursday 31st March 23:00
jeff miles said:
Streaky may be interested to know that I was transporting my high precision paper puncher - consistently holds groups 1/4 moa - 8 mils beyond 1000mtrs - good boot in a chimaera
I'm confused (not uncommon). IIRC (my formulae that is), 8 mil = 27.504 moa (or approx 27.5" @ 100 yd) ... that's not 'precision', that's a miss!
- Streaky ==
Ah, now read the later post. 1/8 mil = 0.42975 moa, so nearer 1/2 than 1/4 (or approx 0.45" @ 100 yd) That's a 'kill' ... and so it should be. Might as well club 'em with the butt at that distance.
At 1,000 yd (more of a challenge / sporting ... depends on your definition and purpose
... and yes, I know 1,000m > 1,000 yd ), 1/8 mil would give approx 4.5". Not good enough for a head shot, but aiming at the centre of body mass on a full-face target should make the right hole, especially if the "paper-puncher" is loaded for bear - that's assuming no uncorrected windage / ballistic (load, projective) / altitude / ambient temperature / terrain (e.g. slope) effects, target movement, shooter's position movement (trees can be a bugger sometimes ), squirrel popping up in LoF, low-flying geese tansiting range/LoF, etc. It's useful that a 6' target is 2 mil tall @ 1,000 yd. Drop a 1/4 mil ... bingo! I was brought up to measure in old money (240 pennies to the mile, that sort of thing). I found the mapping of mil onto imperial far easier to remember than doing it in metric. An average height (6') man at 1,000 yd is 1.77 mil; it's much easier to calculate mill-dot formula in imperial: 5'9" = 1.9 mil, 5'6" = 1.8 mil. Try that in metric
. Of course, with an LU211 in the spout of your M777 ... who cares too much about 4.5"? [And, ladies (and laddies) - that's not rude.]
Streaky
PS - for those who haven't the faintest idea what we're talking about ... sorry
- S >> Edited by streaky on Friday 1st April 06:28
jeff miles said:Forgot to mention that I found that the first round out of a cold barrel will land a tad (or two) low; second can often go high. I've heard reports that molied bullets can have lower velocity owing to reduced chamber pressure - improves as barrel fouls.
7mm BooBoo (big brother is Yogi) = 8mm RWS necked 7mm blown out improved case 176 gn molied VLD @ 3100fps ex 30" bbl with MB, 42x nightforce - best this year 5 in 3.357". It's all about the wind.
Re grouping, a 'nice' story from an old pal in teh RAF Regiment. He was a F/Sgt and turned out the guard on an occasion in Aden during the 'troubles' there. It seems that a bush started firing at them and he doused it with the Bren (from the hip). The following morning, the CO complimented him on his shooting ... the MO had reported the insurgent behind the bush had a 5" group in his chest.
Streaky
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