Learjet 55 vs Learjet 75

Side-by-side specs, range, and operating costs.

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Dimensions & configuration

Representative planforms, drawn to shared scale.

Learjet 55
43.8 × 55.1 ft 14.7 ft tall
2× Turbofan Retractable Pressurized
Learjet 75
50.9 × 58.0 ft 14.1 ft tall
2× Turbofan Retractable Pressurized

Flight Profile

Service ceiling, range, and climb rate.

Tap legend to isolate

Arc represents the climb-cruise-descent profile based on published service ceiling and range. Climb rate annotated on ascent. FL180 (18,000 ft) shown for reference.

Mission Performance

Stall, approach, cruise, range, ceiling and climb: best values are at the top.

Mission performance specifications
Specification Learjet 55Learjet 75
Stall speed 110 kt96 kt
Approach speed 143 kt125 kt
Cruise speed 420 kt465 kt
Range 2165 nm2040 nm
Service ceiling 51000 ft51000 ft
Rate of climb 4180 fpm4498 fpm
Fuel burn 205.0 gph199.0 gph

Each axis is scaled independently across the compared aircraft and printed in its own units; every vertex sits at the published figure. Higher is better on all axes: Stall, Approach and Fuel Burn are inverted (lower = higher). A missing figure breaks the line at that axis.

Fuel Burn & Range

Range, endurance, and what the fuel costs by the hour.

Learjet 55 Jet A
205.0 gph
Baseline
2,165 nm range 2.0 nm/gal 1000 gal usable $1,230 fuel/hr 4h 52m endurance
Learjet 55: 205.0 gallons per hour at cruise, 2,165 nautical mile published range, 4 hour 52 minute endurance, 2.0 nautical miles per gallon.
Learjet 75 Jet A
199.0 gph
Baseline
2,040 nm range 2.3 nm/gal 905 gal usable $1,194 fuel/hr 4h 32m endurance
Learjet 75: 199.0 gallons per hour at cruise, 2,040 nautical mile published range, 4 hour 32 minute endurance, 2.3 nautical miles per gallon.
Jet A range each cell = 1 hr of cruise · width scales with speed

Bars show published still-air range. Endurance is usable fuel divided by the published cruise burn. Estimates only. Always verify against the POH.

Runway Performance

Density altitude adjusted estimates

Outside Air Temp
0°F57°F115°F
Field Elevation
SL4,0008,000 ft
Density Altitude

Takeoff over 50 ft obstacle

Landing ground roll

Base distance DA penalty
Scale: 6,000 ft

FAA 10%/1,000 ft DA rule of thumb (FAA-H-8083-25B). Turboprops and jets are less sensitive in practice. Always verify against the POH.

Estimated Operating Costs

Scale:
Learjet 55 Jet A
$3,030 /hr
Baseline
Learjet 55: $3,030 per flight hour — fuel $1,230, maintenance and reserve $1,800.
Learjet 75 Jet A
$3,154 /hr
Baseline
Learjet 75: $3,154 per flight hour — fuel $1,194, maintenance and reserve $1,960.
Learjet 55 Turbofan
$17,050 /yr Baseline
Learjet 55: $17,050 per year — insurance withheld, hangar $14,550, annual inspection $2,500.
Learjet 75 Turbofan
$55,912 /yr Baseline
Learjet 75: $55,912 per year — insurance $20,216, hangar $33,196, annual inspection $2,500.

Estimates only. Costs vary by location, pilot profile, and market conditions. See individual aircraft pages for source notes.

Capability & limits

Each bar stacks your selected occupants against full fuel and the aircraft's useful-load limit (the black line). The open gap between them is spare payload. Add an occupant and the gap closes; once it's gone, fuel has to give.

lb

+ lb / pax

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1
Learjet 55
10 / 10 seats 1,000 / 1,000 gal fuel 2,157 lb wet payload 8,857 lb useful 21,500 lb MTOW
Learjet 75
11 / 11 seats 905 / 905 gal fuel 1,546 lb wet payload 7,610 lb useful 21,500 lb MTOW

Occupants at 190 + 30 lb each. Fuel at 6.7 lb/gal jet-A, 6.0 lb/gal avgas.

Payload-Range Map

Origin: · two fingers to move map

lb

+ lb / pax

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1

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