Some operational questions
I purchased the C160 a few days ago and I've been thoroughly enjoying it. I've done a few quick circuits and explored some of the cockpit systems. I'm a fly by the book kind of pilot and I like to keep things as realistic as possible, so I have a few questions regarding normal operations.
1. Fuel predictions. For example, a 300nmi flight with 70% payload. How much fuel including reserves would I need for such a mission? Also, what would a normal cruising altitude be?
2. Operation of the fuel valves. I'm confused about the operation of the fuel valves. Am i correct in saying that the fuel in the aux tanks should be burnt first? If so, how would i set this using the valves? During the before start checklist, it states to open the captain's crossfeed valve but not to close it again is this correct?
Thanks in advance for your answers.
1. 300 nm with 70% payload (11200 kg ) and reserve of 624 kg ( 30 min ). In the cruise the aircraft with both engine running burn fuel at +- 1250 kg per hour ( depends what altitude you cruise at, higher alt less fuel burn ). 300 nm at 20000 ft with 2560 kg ( 1280 kg per tank ) will be fine.
2. For normal start without APU you must open A valves ( start left then left A valve open, start completed then open left B valve and close left A valve. Do the same for the right engine. ) When using APU the crossfeed valve must be open, in the climb shut down APU and close the crossfeed valve. Remember crossfeed only works on the main tanks, left to right and right to left.
Hope it helps