Reply hazy, as it was 21 years ago.?ÿ I've looked up the standards of a nearby State DOT and they state 500' max for 3rd order trig levelling.?ÿ Trig ...
Trig levels require the same short legs (300' max?) to reach Class 2 specs & of course GPS et. al. is only good to an inch or two in short distanc...
@chris-mills?ÿ Yep, a load spreading jig for the level legs is a big help in unstable soils.?ÿ Tread lightly around the instrument during observations...
Only foreign work I've done was in Cabo San Lucas for a tricky beachfront construction topo.?ÿ Boundary control and fieldwork was performed by local a...
There's a groundswell that silencers protect hearing in hunting and range shooting situations so is a good idea, not so much at the range where you ca...
Sorry I came across that way.?ÿ I've made mistakes, one in particular cost my company $20,000, & other less serious ones.?ÿ Part of my post reads:...
Let's face it, when establishing long lost/obliterated boundaries we're liable for eternity. Discovery can occur years later, promulgating litigation....
@mathteacher Yup, your named number + 1.
@aliquot?ÿ As it should be.?ÿ The County's function is recordation, not validation.?ÿ It's hard to imagine an "insufficient description" protocol that...
@dmyhill Yep, that's a fact.?ÿ They regularly trickle charge the on the shelf batteries and only maintain an inventory no older than a year or so.
@jitterboogie?ÿ I tried an DC-AC inverter/to Autoparts DC charger to charge the aux battery when underway but one that could deliver DC 40 amps (500 w...
@bill93?ÿ Agreed.?ÿ To be more precise the voltage drop in wiring to the cigarette lighter is enough to limit charging to only a few amps near the upp...
@jamesf1 HP-41CX w/ Survey Pac & some of Joe Bell's routines is the shizzle.
I installed a Grp31 AGM deep cycle battery in a trolling motor battery case in the back of my Jeep to power a compressor type refrigerator/freezer.?ÿ ...
It's like the sign on the back of dump trucks, "Stay back 200 feet, not responsible for broken windshields".?ÿ Um, no.?ÿ You are responsible if someth...
Board disciplinary actions, although rare, do occur I assume in most states.?ÿ I surfed California and found dozens of citations (resolved without adm...
Had my 36 foot sailboat in a shipyard for a few days of maintenance.?ÿ On Friday a worker fell off the scaffolding around 4:30pm and was not found unt...
Be very careful when up there.?ÿ A friend of mine died when he fell through his ceiling, massive head injury.?ÿ Tragic.
Can't find a cite for it, but in Alaska I also heard of BLM "tracer bullet triangulation", used in heavily forested areas, where a crew would roughly ...
A similar but more sophisticated technique was used in Alaska, the Hover Sight. Thisdevice enabled a helicopter pilot to see a spot onthe ground direc...
