SATL382G From , joined Dec 1969, posts, RR: Reply 1, posted (8 years 11 months 2 weeks 2 days ago) and read 3394 times:
Well that photo shows a C-17 not a C-141, and it's not inflight.
C-17 has 27 seats on each sidewall that fold up against the side when not in use. An additional 54 seats can be installed down the center (as in the photo), these seats are stowed on top of the rear cargo door when not in use and travel with the aircraft. So 108 pax using assets available on the aircraft.
C-17 bases used to have, and may still, palletized airline style seats originally used on the C-141. If used these would be installed down the center of the cargo bay. 6 seats to a pallet x 12 pallet positions = 72 seats. These would normally be used for VIPs.
Also depending on the mission and number of pax a palletized galley/lav combo may be installed. It would be right under the bottom of the photo.
Edit: Also number of available seats is not necessarily the limiting factor for pax. Failure to have adequate urinal/toilet facilities can make a long flight nasty. Chart used to determine # lavs required is called, I shit you not, the "P" chart.
DL021 From United States of America, joined May 2004, 11443 posts, RR: 78 Reply 2, posted (8 years 11 months 2 weeks 1 day 15 hours ago) and read 3343 times:
The C-141 is capable of seating in the side and middle seats up to 200 passengers, in the palletized rear facing seats 166 pax. 101 litter cases in the aeroevacuation role, and up to 155 rigged up paratroopers in the C-141B and C models that incorporated the stretch plug. The A model could hold only 123 rigged paratroopers.
As far as toilets the thing had a lavatory pallet that was added for long flights, and it was adequate.
Just for the record the bird is well capable of carrying more if the pilot and loadmaster decide to put them on the floor and leave them unstrapped. The aircraft has a lifting capacity that well exceeds its safe passenger capacity.