Cessna 337 Skymaster vs Piper Aztec

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

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Dimensions & configuration

Representative planforms, drawn to shared scale.

Cessna 337 Skymaster
38 ft × 30 ft ⭥ 9 ft
2× Piston Retractable Unpressurized
Piper Aztec
37 ft × 31 ft ⭥ 10 ft
2× Piston Retractable Unpressurized

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 Cessna 337 SkymasterPiper Aztec
Stall speed 70 kt64 kt
Approach speed 75 kt91 kt
Cruise speed 144 kt172 kt
Range 600 nm915 nm
Service ceiling 19500 ft19800 ft
Rate of climb 1200 fpm1490 fpm
Fuel burn 22.0 gph27.4 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.

Cessna 337 Skymaster Avgas
22.0 gph
Baseline
600 nm range 6.5 nm/gal 92 gal usable $143 fuel/hr 4h 10m endurance
Cessna 337 Skymaster: 22.0 gph at cruise, 600 nautical mile published range, 4 hour 10 minute endurance, 6.5 nautical miles per gallon.
Piper Aztec Avgas
27.4 gph
Baseline
915 nm range 6.3 nm/gal 144 gal usable $178 fuel/hr 5h 15m endurance
Piper Aztec: 27.4 gph at cruise, 915 nautical mile published range, 5 hour 15 minute endurance, 6.3 nautical miles per gallon.
Avgas range each cell = 1 hr of cruise · width scales with speed tank-dry · at this cruise burn

Bars show published still-air range: select a cell to view cruise-hours and fuel usage. Endurance is full tank at the displayed cruise burn rate; the extra is reserve and economy margin. 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

Takeoff over 50 ft obstacle

Landing ground roll

Density Altitude

Monte cristo

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

Hourly direct and annual fixed costs

Scale:
Cessna 337 Skymaster Avgas
$263 /hr
Baseline
Cessna 337 Skymaster: $263 per flight hour — fuel $143, maintenance and reserve $120.
Piper Aztec Avgas
$265 /hr
Baseline
Piper Aztec: $265 per flight hour — fuel $178, maintenance and reserve $87.
Cessna 337 Skymaster Piston
$14,733 /yr Baseline
Cessna 337 Skymaster: $14,733 per year — insurance $3,200, hangar $7,533, annual inspection $4,000.
Piper Aztec Piston
$10,185 /yr Baseline
Piper Aztec: $10,185 per year — insurance withheld, hangar $7,685, annual inspection $2,500.

Estimates only. Hourly direct operating cost, based on fuel price and reserves; Annual fixed costs (insurance, hangar, and inspection). Costs vary by location, pilot profile, and market conditions. See individual aircraft pages for source notes.

Capability & limits

Payload vs useful load limit

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Cessna 337 Skymaster Piston
6 / 6 seats 92 gal / 92 gal fuel 948 lbs wet payload 1,500 lbs useful 4,630 lbs MTOW
Piper Aztec Piston
6 / 6 seats 144 gal / 144 gal fuel 1,294 lbs wet payload 2,158 lbs useful 5,200 lbs MTOW

Shows selected occupants against full fuel, within the aircraft's useful-load limit. Fuel weight at 6.7 lb/gal jet-A, 6.0 lb/gal avgas; pax and luggage are 190 + 30 . Change payload weights in global settings.

Payload-Range Map

Origin: · two fingers to move map

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