Ultra high payload hydrogen narrow-body freighter

166,000 lb GW long range small hydrogen cargo aircraft

Based on A319 series narrow-body aircraft

Empty weight: 90,000 lbs

Useful load: 76,000 lbs

Range: 5950 miles, 5174 nmi

Payload at max range with conventional Jet fuel propulsion: 18,400 lbs

Payload at max range with Pochari hydrogen propulsion: 51,400 lbs, 180% more, 20% lower MGTOW.

Additional payload: 33,000 lbs, ($110,000 additional revenue)

Cruise speed: 513 mph, 446 kts

Fuel consumption: 680 gal/hr Jet A-1, 755 kg/hr LH2

Fuel load for 11.6 hr endurance: 8720 kg of LH2, 24540 lbs total. 53600 lbs Jet A-1

Powerplant: V2500-A1 turbofan 0.58 TSFC 24600 lbf take-off thrust

Liquid hydrogen propulsion system mass breakdown

General overview: 4360 cubic foot 14 ft dia x 29 ft length stretched in-fuselage middle CG fully integral tank configuration

Surface/volume ratio: 36%

Wetted area: 1240 ft2, 31% of volume

Tank construction: 0.05” wall thickness. Al-Li 2195 87000 psi tank shell: 1040 lbs

Insulation: 0.25” thickness Nanopore™ Vacuum insulated panel 0.0025 W-mK. Tank heat transfer of 48,000 BTU/hr, resulting boil-off of 112 kg/hr, 15%/12 hr. Insulation weight: 305 lbs

S-180 1.8 lbs/ft3 0.021 W-mK seam filler insulation: 90 lbs

Total tank group: 1435 lbs

Additional fuselage stretch: 0.05” Al-Li 2195 skin, 0.06” 1” x 4.5” former 20” spacing, 0.05” 1.5” x 4” stringers 8” spacing. 2.5m diameter Titanium rivets 0.5” spacing: 60 lbs:

Total fuselage group: 2100 lbs

Drag load: 47 kg/hr additional fuel burn, 7.2% higher (Drag data based on 37,000 ft altitude and 480 kts speed, 0.46 lbf/ft2 wetted fuselage area, 0.36 lbf at 45,000 ft. Source: http://www.lissys.demon.co.uk)

Total drag group: 1200 lbs

Front/rear separation wall CFRP: 500 lbs

Fuel supply system for LH2 aircraft is equivalent in weight to jet fuel supply system, little to no additional weight is added. Hydrogen fuel supply consists of a small high speed liquid hydrogen pump, 1” aluminum piping routed from fuselage to both engines. Energy required to boil-off hydrogen is provided from heat transfer through fuel lines.

Total: 5,325 lbs, 27.2% LH2 weight. 1.224 lb/ft3 tank volume

LH2 system total: 24,540 lbs

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