Cessna CitationJet CJ1 vs Learjet 40

Side-by-side specs, range, and real operating costs for up to 5 aircraft.

Aircraft

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Mission Performance

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Values normalised across compared aircraft. Fuel Economy is inverted (lower burn = higher score). See table below for raw figures.

Mission Performance Details

Metric Cessna CitationJet CJ1 Cessna Learjet 40 Learjet
Stall Speed 91 kts 119 kts
Approach Speed 99 kts 123 kts
Cruise Speed 381 kts 464 kts
Range 1,300 nm 1,692 nm
Service Ceiling 41,000 ft 51,000 ft
Rate of Climb 3,230 fpm 2,820 fpm
Fuel Burn 134.0 gph 211.0 gph

Flight Profile

Service ceiling, range, and climb rate.

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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.

Fuel Burn & Range

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

Cessna CitationJet CJ1 Jet A
134.0 gph
baseline
1,300 nm range 477 gal usable 3h 33m endurance 2.8 nm/gal $804 fuel/hr
Cessna CitationJet CJ1: 134.0 gallons per hour at cruise, 1,300 nautical mile published range, 3 hour 33 minute endurance, 2.8 nautical miles per gallon.
Learjet 40 Jet A
211.0 gph
+77.0 gph
1,692 nm range 802 gal usable 3h 48m endurance 2.2 nm/gal $1,266 fuel/hr
Learjet 40: 211.0 gallons per hour at cruise, 1,692 nautical mile published range, 3 hour 48 minute endurance, 2.2 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:
Cessna CitationJet CJ1Jet A
$1,644 /hr
Cessna CitationJet CJ1: $1,644 per flight hour — fuel $804, maintenance and reserve $840.
Learjet 40Jet A
$2,647 /hr
Learjet 40: $2,647 per flight hour — fuel $1,266, maintenance and reserve $1,381.
Cessna CitationJet CJ1 Turbofan
$14,688 /yr
Cessna CitationJet CJ1: $14,688 per year — insurance withheld, hangar $12,188, annual inspection $2,500.
Learjet 40 Turbofan
$48,321 /yr
Learjet 40: $48,321 per year — insurance $15,559, hangar $30,262, 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.

Occupants at 190 + 30 lb each
1
Cessna CitationJet CJ1
8 / 8 seats 477 / 477 gal fuel 554 lb wet payload 3,750 lb useful 10,400 lb MTOW
Learjet 40
8 / 8 seats 802 / 802 gal fuel 2,237 lb wet payload 7,610 lb useful 20,350 lb MTOW

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

Dimensions & configuration

Representative planforms, drawn to shared scale.

Cessna CitationJet CJ1
46.9 × 42.6 ft 13.8 ft tall
2× Turbofan Retractable Pressurized
Learjet 40
47.8 × 55.5 ft 14.1 ft tall
2× Turbofan Retractable Pressurized

Payload-Range Map

Full fuel ← → Max payload

Origin: · two fingers to move map

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