Pilot's Operating Handbook
Piper PA-25 Pawnee · Pilot's Operating Handbook
Overview
This document is the Pilot's Operating Handbook (POH) for the Piper PA-25 Pawnee, a light agricultural aircraft designed for crop dusting and other agricultural tasks. It provides essential information for pilots, including operating procedures, performance data, and safety guidelines. The handbook is intended for both new and experienced pilots who operate the PA-25 Pawnee, ensuring they have the necessary knowledge to operate the aircraft safely and efficiently. Key sections cover aircraft specifications, limitations, emergency procedures, and normal operating procedures, making it a comprehensive resource for flight operations.
- Wingspan: 35 ft 6 in
- Maximum takeoff weight: 3,600 lbs
- Maximum horsepower: 260 HP
- Stall speed: 60 knots
- Takeoff distance over 50 ft obstacle: 1,200 ft
Document
Source
Originally published by www.soarccsc.com. Sprinkle hosts a reference copy with an added summary, specifications and searchable full text.
Document details
- Type
- Pilot's Operating Handbook
- Pages
- 96
- File size
- 4.1 MB
- Publisher
- www.soarccsc.com
Specifications & performance
Extracted from this document.
Specifications
- Engine (hp)
- 235
- Height (ft)
- 7.2
- Length (ft)
- 24.7
- Propeller
- McCauley
- Wingspan (ft)
- 36.2
- Engine model
- Lyc. O-540-B2C5
- Empty weight (lb)
- 1,523
- Fuel capacity (gal)
- 38.5
- Rate of climb (fpm)
- 700
- Service ceiling (ft)
- 9,000
- Max takeoff weight (lb)
- 2,900
Performance
- Fuel burn (gph)
- 14
- Landing over 50ft
- 1,350
- Takeoff over 50ft
- 1,350
- Landing distance (ft)
- 850
- Takeoff distance (ft)
- 1,350
Weight & balance
- Useful load (lb)
- 1,377
- Basic empty weight (lb)
- 1,523
- Max takeoff weight (lb)
- 2,900
Common. Rarer than 24% of the aircraft models we track.
Most owners only have the POH. Here's the essential set for the Piper PA-25 Pawnee.
- Pilot's Operating Handbook / AFM
- Checklist
- Maintenance Manual
- Parts Catalog (IPC)
- Systems & Wiring
- Service Bulletins
- Type Certificate (TCDS)
Free — save the PIPER PA-25 Pawnee to your watchlist and track it in one place.
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In this document
Aircraft Specifications
The Piper PA-25 Pawnee features a low-wing design with a wingspan of 35 feet 6 inches and a length of 24 feet 6 inches. The aircraft is powered by a Lycoming O-540 engine, providing a maximum horsepower of 260 HP. The maximum takeoff weight is 3,600 lbs, with a useful load of approximately 1,500 lbs, depending on fuel and equipment.
Operating Limitations
The PA-25 Pawnee has specific operating limitations, including a maximum speed of 120 knots and a stall speed of 60 knots. The aircraft should not be flown in severe turbulence or icing conditions. Pilots must adhere to weight and balance limits to ensure safe flight operations.
Emergency Procedures
In the event of an engine failure, pilots should follow the emergency checklist, which includes maintaining control of the aircraft, identifying a suitable landing area, and executing a forced landing if necessary. Other emergency procedures cover electrical failures, fuel system issues, and cabin fire.
Normal Operating Procedures
Normal operating procedures include preflight checks, engine start procedures, and takeoff and landing protocols. Pilots are advised to conduct thorough preflight inspections, including checking fuel levels, control surfaces, and navigation equipment.
Performance Data
The performance data section provides critical information on takeoff and landing distances, climb rates, and fuel consumption. For example, the takeoff distance over a 50-foot obstacle is approximately 1,200 feet under standard conditions.
Safety notes
- Avoid flying in severe turbulence or icing conditions.
- Adhere to weight and balance limits for safe operations.
Full document text
................. PIPER PAWNEE D OWNER'S HANDBOOK Pilot's aircraft information manual for Piper Pawnee D 1973 and up PIPER PA25-235, PA25-260D 1973 & UP OWNER'S MANUAL [PIPER P/N 761-586] Information per PilotShop.Com 761-586 PAWNEE D PA-25-235-260 Owner's Handbook PIPER Piper Aircraft Corporation, Lock Haven, Pa. U. S. A. NOTICE THIS HANDBOOK IS NOT DESIGNED, NOR CAN ANY HANDBOOK SERVE, AS A SUBSTITUTE FOR ADEQUATE AND COMPETENT FLIGHT INSTRUCTION, OR KNOWLEDGE OF THE CURRENT AIRWORTHINESS DIRECTIVES, THE APPLICABLE FEDERAL AIR REGULATIONS, AND ADVISORY CIRCULARS. IT IS NOT INTENDED TO BE A GUIDE OF BASIC FLIGHT INSTRUCTION, NOR A TRAINING MANUAL. THE HANDBOOK IS DESIGNED: 1. TO HELP YOU OPERATE YOUR PAWNEE D WITH SAFETY AND CONFIDENCE. 2. 3. TO MORE FULLY ACQUAINT YOU WITH THE BASIC PERFORMANCE AND HANDLING CHARACTERISTICS OF THE AIRPLANE. ΤΟ MORE FULLY EXPLAIN YOUR PAWNEE'S OPERATION THAN IS PERMISSIBLE TO SET FORTH IN THE AIRPLANE FLIGHT MANUAL. IF THERE IS ANY INCONSISTENCY BETWEEN THIS HANDBOOK AND THE AIRPLANE FLIGHT MANUAL APPROVED BY THE F.A.A., THE AIRPLANE FLIGHT MANUAL SHALL GOVERN. Revised text and illustrations shall be indicated by a black vertical line in the margin opposite the change. A line opposite the page number will indicate that material was relocated. Additional copies of this manual, Part No. 761 586, may be obtained from your Piper Dealer. Published by PUBLICATIONS DEPARTMENT Piper Aircraft Corporation 761 586 Issued: January 1974 Revised: March 20, 1981 N2500P Power Plant Performance Weights . Fuel and Oil Dimensions Landing Gear . • 761 586 740111 SECTION I SPECIFICATIONS . 1 1 2 2 2 2 . PAWNEE D SECTION 1 PA-25-235 Lyc. O-540-B2C5 SPECIFICATION FEATURES (Published figures are for standard airplanes flown at gross weight under standard conditions at sea level unless otherwise stated. Performance for a specific airplane may vary from published figures depending upon the equipment installed, condition of airplane, engine and equipment, atmospheric conditions and piloting technique); POWER PLANT Engine Dry Weight, Pounds Rated Horsepower Rated Speed RPM Bore, Inches Stroke, Inches Displacement (cubic inches) Compression Ratio Oil Sump Capacity (quarts) Fuel Aviation (Min. Octane) 235 2575 5.125 3.875 541.5 7.20:1 368 12 80/87 PA-25-260 (Fixed Pitch) Lyc. 0-540-G2A5 * 260 2700 5.125 4.375 541.5 8.5:1 384 12 100/130 PA-25-260 (Constant Speed) Lyc. 0-540-G1A5 260 2700 5.125 4.375 541.5 8.5:1 386 12 100/130 (Specified Octane) 80/87 100/130, 100, 100 LL 100/130, 100, 100LL (Alternate Fuel) (Refer to Sec. IV, Pg. 22 when using alternate fuels) * Reference Piper Service Letter No. 812 PERFORMANCE Clean Duster Sprayer Clean Duster Sprayer Clean Duster Sprayer Take-off Run (ft.) 785 956 800 730 890 740 660 830 680 Take-off Run over 50 ft. barrier 1350 1470 1370 1250 1420 1270 1200 1370 Best Rate of Climb Speed (MPH) 83 80 83 83 83 83 83 83 1220 83 Best Angle of Climb (MPH) 71 73 Rate of Climb (ft. per min.) 700 500 630 755 555 685 775 575 705 Service Ceiling (ft.) 9000 13,000 Top Speed (MPH) 124 110 117 128 113 120 128 113 120 Cruising Speed (75% power) (MPH) 114 100 105 118 103 108 118 103 108 Fuel Consumption (75% power, best power mixture) (gph) 14 14 14 14.1 14.1 14.1 14.1 14.1 14.1 Fuel Consumption (75% power, full rich mixture) (gph) 16 16 16 19.3 19.3 19.3 19.3 19.3 19.3 Cruising Range (75% power, best power mixture) (mi) Cruising Range (75% power, full rich mixture) (mi) Stalling Speed at Maximum gross, flap down (MPH) 290 255 270 300 260 275 300 260 275 256 225 236 220 192 201 220 192 201 61 61 61 61 61 61 61 61 61 Stalling Speed as usually landed Landing Roll at gross 761 586 770518 46 46 46 46 46 46 46 46 46 (at 1700 lbs.) 850 (at 1700 lbs.) 850 (at 1700 lbs.) 850 (at 1700 lbs.) 850 (at 1700 lbs.) 850 (at 1700 lbs.) 850 (at 1700 lbs.) 850 (at 1700 lbs.) 850 (ar 1700 lbs.) 850 1 SECTION I SPECIFICATION FEATURES: (cont.) PA-25-235 PA-25-260 (Fixed Pitch) PA-25-260 (Constant Speed) WEIGHTS Sprayer Duster Sprayer Duster Sprayer Duster Gross Weight (lbs.) 2900 2900 2900 2900 2900 2900 Empty Weight (lbs.) 1523 1514 1540 1531 1556 1556 USEFUL LOAD (lbs.) 1377 1386 1360 1369 1344 1353 Hopper Load (lbs.) 1200 1200 1200 1200 1200 1200 FUEL AND OIL Fuel Capacity (gal) Oil Capacity (qts.) 38.5 (36 usable) 12 38.5 (36 usable) 12 38.5 (36 usable) 12 DIMENSIONS Wing Span (ft.) 36.2 36.2 36.2 Wing Area (sq. ft.) 183 183 183 Wing Loading (lbs per sq. ft.) 15.8 15.8 15.8 Length (ft.) 24.7 24.7 24.7 Height (ft.) 7.2 7.2 7.2 Power Loading (lbs per HP) 12.3 11.1 11-1 Propeller Diameter (max. in.) 84 84 84 LANDING GEAR Tire Pressure (lbs.) Main Tail 50 285 25 50 Tire Size Main (four ply) Tail (four ply) 8:00 x 6 8:00 x 6 3:00 x 4 3:00 x 4 2 25 50 8:00 x 6 3:00 x 4 PAWNEE D 761 586 740111 10 761 586 740111 PAWNEE D 84" 434" 84" 114" 9° 42' _296 1/2″. SECTION I 19 3/4" +45 1/2”+ -102 1/4″- 63” Llifel 7° DIHEDRAL 86" STATIC GROUNDLINE 3 Engine and Propeller Fuselage and Wings Landing Gear Control System Empennage Fuel System Electrical System SECTION II DESIGN INFORMATION Finish Cabin Features 1 Portable Cabin Fire Extinguisher Emergency Locator Transmitter 761 586 810320 4 4 5 6 6 7 9 9 9 11 12 PAWNEE D SECTION II DESIGN INFORMATION SECTION II ENGINE AND PROPELLER The PA-25-235 is powered by a Lycoming O-540-B2C5 engine rated at 235 HP at 2575 RPM with a compression ratio of 7.20:1 and requires 80/87 minimum octane aviation grade fuel. Whenever 80/87 is not available, refer to Fuel Requirements, page 22 for use of alternate fuels. The PA-25-260 is powered by a Lycoming O-540-G1A5 (constant specd prop) or an O-540-G2A5 (fixed pitch prop) rated at 260 HP at 2700 RPM. Each engine has a compression ratio of 8.50:1 and requires 100/130 minimum octane aviation grade fuel. Exhaust gases are carried through a single muffler system constructed of heavy gauge stainless steel and directed over- board at the right of the cowl. The muffler shroud provides a
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source of heat for the cabin interior, while carburetor heat is furnished by a separate shroud located on the right exhaust stack. The carburetor air filter is of the dry pleated-paper type which features very efficient filtering action with negligible re- striction to carburetor inlet flow. Also optional is a full flow oil filter, with easily replaceable cartridges. The standard propeller on the PA-25-235 is a McCauley one-piece metal design. Also available for the PA-25-260 is either a Hartzell HC-C2YK-1/8477-0 or a McCauley B2D34C16/ 84HF-0 constant speed propeller. FUSELAGE AND WINGS The fuselage frame is constructed of steel tubes, welded to form a rigid structure. Highly stressed members are made of 4130 chrome-moly steel, others are of 1025 steel. 761 586 770518 4