Learjet 31A Performance Description Performance Cabin Bombardier Learjet 31A ® Takeoff at Sea Level, feet 3,490 Takeoff at 5000′ 25°C, feet 6,251 Landing Distance, feet 2,507 Certified Ceilings, feet 51,000 Fuel Consumption, gallons per hour 177 Total Variable Cost $1,219 High Speed Cruise, knots 456 Ranges, Four Pax, Nautical Miles (NM) 1,252 600 NM Mission, Fight Time 1+25 1000 NM Mission, Flight Time 2+20 Performance Ranges (Full Seats/Full Fuel) Airport Performance/Takeoff Distance.