An upgraded version of the 300 model, the B737-400 features a further extension to the fuselage and boost in engine power. These upgrades further increase its cargo capacity on medium haul flights. PAYLOAD. 20412 KG / 45000 lbs . HOLD SIZE (LxWxH) 2440x319x214 CM / 960"x125"x84" DOOR SIZE (WxH) 356x213 CM / 140"x83" TOTAL LOAD VOLUME. 156 m³ 165 mm measured at 500 mm height from flight deck floor 220 mm measured at 630 mm height from flight deck floor 260 mm measured below MIP along floor to base of column. Distance from FMC Panel. 230 mm from side of FMC panel. Distance from Stab Trim Wheel. 330 mm from side of Stabiliser Trim Wheel. TUI's Haribo Boeing 737 Is Now A Freighter For WestJet. The Boeing 737 has undergone a makeover and been converted into a freighter aircraft, becoming the fourth Boeing 737-800BCF in WestJet Cargo's fleet. By Steven Walker Apr 26, 2023. Aerolíneas Argentinas. For Alaska Airlines ’ air cargo division, according to Managing Director Adam Drouhard, 2023 “is an ambitious year, with changes coming to our entire operation.”. Alaska Air Cargo will be growing - even with air freight internationally 15% less in demand - with a new tracking system and two Boeing 737-800 freighters plus new routes after hxZrH1.