Beech 60 Duke vs Cessna 340

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

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Dimensions & configuration

Representative planforms, drawn to shared scale.

Beech 60 Duke
39.3 × 33.8 ft 12.3 ft tall
2× Piston Retractable Pressurized
Cessna 340
38.1 × 34.3 ft 12.6 ft tall
2× Piston 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 Beech 60 DukeCessna 340
Stall speed —79 kt
Approach speed 98 kt100 kt
Cruise speed 201 kt229 kt
Range 714 nm1406 nm
Service ceiling 30000 ft29800 ft
Rate of climb 1601 fpm1650 fpm
Fuel burn 40.0 gph38.0 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.

Beech 60 Duke Avgas
40.0 gph
Baseline
714 nm range 5.0 nm/gal 142 gal usable $260 fuel/hr 3h 32m endurance
Beech 60 Duke: 40.0 gallons per hour at cruise, 714 nautical mile published range, 3 hour 32 minute endurance, 5.0 nautical miles per gallon.
Cessna 340 Avgas
38.0 gph
Baseline
1,406 nm range 6.0 nm/gal 203 gal usable $247 fuel/hr 5h 20m endurance
Cessna 340: 38.0 gallons per hour at cruise, 1,406 nautical mile published range, 5 hour 20 minute endurance, 6.0 nautical miles per gallon.
Avgas 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:
Beech 60 Duke Avgas
$483 /hr
Baseline
Beech 60 Duke: $483 per flight hour — fuel $260, maintenance and reserve $223.
Cessna 340 Avgas
$481 /hr
Baseline
Cessna 340: $481 per flight hour — fuel $247, maintenance and reserve $234.
Beech 60 Duke Piston
$23,200 /yr Baseline
Beech 60 Duke: $23,200 per year — insurance $8,000, hangar $7,200, annual inspection $8,000.
Cessna 340 Piston
$21,000 /yr Baseline
Cessna 340: $21,000 per year — insurance $7,500, hangar $7,200, annual inspection $6,300.

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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Beech 60 Duke
6 / 6 seats 142 / 142 gal fuel 1,648 lb wet payload 2,500 lb useful 6,775 lb MTOW
Cessna 340
6 / 6 seats 203 / 203 gal fuel 861 lb wet payload 2,079 lb useful 5,990 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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