C-180 Air Plains 300 HP Model H thru K

Overview

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Your Cessna 180 Skywagon has it all: lots of ramp appeal, a great owner, and plenty of versatility. Why not get equipped with exceptional performance? Give your airplane the gift it has been dreaming for years... The full joy of Air Plains 300 Horsepower. Cruise at 180+ mph speeds and climb faster then a home-sick angel.

Our conversion will increase your cruise airspeed and climb-rate. Air Plains will help you achieve the performance you always dreamed you had available. All kit parts are manufactured at our facilities, where we maintain close control on fabrication and production. Parts are FAA-PMA approved in order to ensure that you will receive the best quality and most complete conversion kit.

Once you taste the extra power available and the quality of our product the only thing you will wish for is that you had done the conversion sooner. We are always committed to you, providing help during your purchase all the way to your flying.

Powerplant

Flying with the confidence that your aircraft can perform with no "hiccups" in and out of short fields at high density altitude is a feeling that every pilot should posses when it comes to your safety and the safety of your passengers. IO-520-D

The IO-520-D engine generates 300 horsepower at an RPM of 2850, which is allowed for 5 minute intervals. On take off, at full throttle, 300 horsepower are available for five minutes, then a power change is made to bring the engine back to 285 horsepower (maximum continuous horsepower).

The IO-550-D engine generates 300 horsepower at 2700 rpm, and has no limitations. The basic difference between the IO-520 engine and the IO-550 engine is the stroke of the piston within the cylinder. The 550, being longer thus creating more cubic inches, and the 300 sustainable horsepower creates increased torque.

Powerplant	IO-520-D	IO-550-D
Manufacturer	Continental	Continental
Engine Model	IO-520-D	IO-550-D
Horsepower*	285 HP	300 HP
Maximum RPM	2850 rpm	2700 rpm
Time Between Overhauls	1700 hrs	1700 hrs
Fuel Consumption	15-16 GPH	17-18 GPH
* maximum continuous HP

Propeller

All propellers have been matched to provide the best combination of airframe and powerplant.

Propeller	PHC-C3YF-1RF	D3A34C401
Manufacturer	Hartzell Propeller	McCaulley
Model	/F7691 or /F8468A()-6R	401/90DFA-10
Engine Model	IO-520-D or IO-550-D	IO-520-D or IO-550-D
Blades	3	3
Diameter Max.	80	80
Diameter Min.	77	78
Pitch Range	14.5-32 \| 13-32	13.2-31

Other options of propeller STCs are available for this aircraft in the Propeller Conversion section.

Performance

The Air Plains 300 HP offers substantially increased climb and cruise performance.

APS 300 HP Performance	IO-520-D	IO-550-D
Cruise Airspeed	175-180 mph	180-185 mph
Rate of Climb (S.L)	1400-1500 fpm	1700-1800 fpm
Service Ceiling	24,000 feet	24,000 feet

Installation

Installation of both engines are exactly the same, the only difference being the engine that is installed. The 300 horse installation involves the addition of fuel injection to the Cessna 180, which requires a modification to the stock gravity fed fuel system. The system installed is similar to the one used in the Cessna 185, Cessna 206 and Cessna 210. Modifications in the fuel compartment are minimal, involving a change to the engine mount, clearance gained at the firewall, and the remainder of the fuel injection system installed. The installation does not require any cowling modifications on most models. The only noticeable change is the addition of the 3 blade propeller and polished spinner.

Our Air Plains 300 horsepower engine conversion design and installation have been developed from our experience in modifying and maintaining other Cessna aircraft at our facilities for more than a quarter of a century. Whether installed here at our facilities, or shipped to your local shop for installation, our Air Plains engine conversions has been developed to be delivered as a complete kit. Our standardized kit, installation instructions, blueprints, and continued airworthiness manual, safeguard the procedures and standards for installation and maintenance of your new conversion... no matter where you choose to have your conversion installed.

Kit Accessories

Kitting on the Skywagon Air Plains 300 HP changes slightly on every model aircraft to accommodate changes in the original airframe design.

Engine Mount Modification or Sea Planes West engine mount
Air Plains PMA Parts
Hoses
Switches
Electric Fuel Pump
Gauges (Manifold Pressure and Fuel Flow)
New Propeller Governor
Propeller and Spinner Assembly
Throttle and Mixture cables
Engine isolator mounts
Fuel Reservoir Tank

Air Plains Services