Thanks for the federal perspective...
CDF doesn't use lead planes, and the Air attack numbers follow the ranger unit...i.e. Mendo is region 1, unit 1, hence the airco (Air command) is 110, helitack out of Howard forest HQ is Helitack 101, Boggs Mtn is 103, Fortuna is 102, etc
AirCo will orbit above the fire, and below them going the opposite direction air the tankers, say Tanker 91...
If a fire (we're all mountains up in this part of CA) is at 4,000 el, the tankers might orbit at 6,000 el and AirCo at 7,000 el (Flight Level 70)...
The CDF & USFS follow the same ICS for interoperability...last year we had a big fire on the edge of MNF that was a joint command fire between MEU (CDF) and MNF (USFS)...eventually the USFS took over command, firecamp space was provided by the United Round Valley Tribes in the Covelo area. The fire also extended into designated Wilderness Area's, complicating the fire suppression efforts as no motorized vehicles are permitted in Wilderness Area...special permission had to be obtained to run a cat line into the wilderness...
I used to (besides being a firefighter) be a fire tower lookout, and besides the Osborne, I had a standard 120vac 2 way VHF radio (I think it had 6 or 8 channels and a roof mounted vertical groundplane), and also a Bendix hand held...
I could talk directly with other towers in simplex mode (the start o feach fire season meant we had to make sure our topo's mounted ON the Osborne were calibrated to the correct asmuth...so I easily could pull up Konocti in LNU from Cold springs in MEU due to line of sight...I also would take a 2m ham radio, scanner, and a CB radio with me as well. Lookouts have the best views, and FM radio propagation...but we also have horrendous winds, sometimes stong enough to blow back into the heater flue and blow out the heater flame.
I liked the CDF towers because they're enclosed with several floors, including a bedroom on one level, bathroom & shower on another level, and water system pump on the ground level, the reefer box & stove were on the top (glass room) level...whereas the federal towers are usually just one level (the glass room) with everything crammed into that 1 level.
I got a commendation from the region brass for radio operations excellence, when during a 10851 CPC incident my BC was in pursuit but had no subject description, which I had copied down from the CHP, and using car to car simplex relayed it to my BC, and even though Howard Forest HQ could copy me in simplex mode (thus keeping them in the info loop) I didn't tie up the repeater, in case it was needed for a dispatch. At an awards dinner in Fortuna I was given a commendation, and a Smokey The Bear Watch (which I still have), but the batteries crapped out since then. Being a radio guy (ham & broadcasting) I was spot on in radio usage, call sign usage, and channel usage. That BC was VERY grateful that I relayed the subject description after the 10851 was abandoned on Fish Rock Rd (MMA, 5'8" to 5'10", black hair, clean shaven, white shirt, blue jeans, officer safety alert due to subject believed to be armed when the vehicle was stolen in Ft Bragg...yep, I still remember every detail 29 years later...
It doesn't matter what your job assignment is, when it comes to safety, you look out for everybody else on the team, and this is a good example of a fire tower lookout relaying vital officer safety info much faster than CHP could relay to CDF via landline...
I could also talk with Anthony Peak lookout on the western edge of MNF...it's a dual tower set up with ardios for both USFS & CDF.
My first tower, Mt St Helena, no longer exists...it did have a landline phone, which is very rare for a lookout tower...that tower was unique in that to the south & west, it was mostly cities (Napa Valley & Santa Rosa) with the big bright lights that cities tend to have, but to the north & east, at night, it was a "big dark empty" with very sparse population & no lights on at night except for The Geysers...
If you look at a map of CA, in my region, I still live in a "big empty" on the western side of the Yolla Bollys, where the only cross road north of CA Hwy 20 is CA Hwy 162 (MEU) / Forest Rd M7 (MNF) (which runs from US Hwy 101 to I-5 at Willows)...no other cross roads until you get to CA Hwy 36 in HUU...
Yeah, I have a story or two about being a ground pounder, but the lookout is where I flourished, and trained others...
PS, I remember the VHF Wulfsburg's...still wish I had one of those...