ROBINSON R22 SERIES

Full document text

ROBINSON R22 SERIES SECTION 1 GENERAL REVISED: 22 FEB 2024 1-i SECTION 1 GENERAL CONTENTS Page Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1 Cautions and Notes . . . . . . . . . . . . . . . . . . . . . . . . . 1-2 External Dimensions . . . . . . . . . . . . . . . . . . 1-3 Descriptive Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4 Performance Definitions . . . . . . . . . . . . . . . . . . . . . . 1-6 Weight and Balance Definitions . . . . . . . . . . . . . . . . . 1-7 Conversion Tables . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8 INTENTIONALLY BLANK ROBINSON R22 SERIES INTRODUCTION SECTION 1 GENERAL SECTION 1 GENERAL This Pilot's Operating Handbook is designed as an operating guide for the pilot. It includes the material required to be furnished to the pilot by 14 CFR parts 21 and 27. It also contains supplemental data supplied by the helicopter manufacturer. This handbook is not designed as a substitute for adequate and competent flight instruction or for knowledge of current airworthiness directives, applicable federal aviation regulations, and advisory circulars. Nor is it intended to be a guide for basic flight instruction or a training manual. It should not be used for operational purposes unless kept in a current status. Assuring that the helicopter is in airworthy condition is the responsibility of the owner. The pilot in command is responsible for determining that the helicopter is safe for flight. The pilot is also responsible for remaining within the operating limitations as outlined by instrument markings, placards, and this handbook. Since it is very difficult to refer to a handbook while flying a helicopter, the pilot should study the entire handbook and become very familiar with the limitations, performance, procedures, and operational handling characteristics of the helicopter before flight. This handbook has been divided into ten numbered sections. Limitations and emergency procedures have been placed ahead of normal procedures, performance, and other sections to provide easier access to that information. Provisions for expansion of the handbook have been made by deliberate omission of certain paragraph numbers, figure numbers, item numbers, and pages noted as being intentionally blank. REVISED: 26 JUN 2012 1-1 ROBINSON R22 SERIES CAUTIONS AND NOTES SECTION 1 GENERAL Cautions and Notes emphasize important information and are used as follows: CAUTION Equipment damage, injury, or death can result if procedure or instruction is not followed. NOTE Provides emphasis or supplementary infor- mation. REVISED: 26 JUN 2012 1-2 ROBINSON R22 SERIES SECTION 1 GENERAL REVISED: 22 FEB 2024 1-3 R22 EXTERNAL DIMENSIONS (LATER AIRCRAFT SHOWN) EXTERNAL DIMENSIONS ROBINSON R22 SERIES SECTION 1 GENERAL REVISED: 11 MAY 2020 1-4 DESCRIPTIVE DATA MAIN ROTOR Articulation Free to teeter and cone, rigid inplane Number of Blades 2 Diameter 25 feet 2 inches Blade Chord 7.2 inches inboard, 7.7 inches outboard Blade Twist -8 degrees Tip Speed at 104% RPM 698 feet per second TAIL ROTOR Articulation Free to teeter, rigid inplane Number of Blades 2 Diameter 42 inches Blade Chord 4 inches (constant) Blade Twist 0 degrees Precone Angle 1 degree 11 minutes Tip Speed at 104% RPM 622 feet per second DRIVE SYSTEM Engine to Upper Sheave: Two double Vee-belts with .8536:1 speed reducing ratio Upper Sheave to Drive Line: Sprag-type overrunning clutch Drive Line to Main Rotor: Spiral-bevel gears with 11:47 speed reducing ratio Drive Line to Tail Rotor: Spiral-bevel gears with 3:2 speed increasing ratio ROBINSON MODEL R22 SECTION 1 GENERAL DESCRIPTIVE DATA (cont'd) POWERPLANT Model: Lycoming 0-320 or 0-360 Type: Four cylinder, horizontally opposed, direct drive air cooled, carbureted, normally aspirated Displacement: 319.8 (0-320) or 361.0 (0-360) cubic inches Normal rating: 0-320-A2B or A2C 150 BHP @ 2700 RPM (Standard R22) 0-320-B2C 160 BHP@ 2700 RPM (R22 HP, Alpha, and Beta) 0-360-J2A 145 BHP (derated) @ 2700 RPM (R22 Beta II) Maximum continuous rating in R22: 124 BHP at 2652 RPM ( 1 04 % on tachometer) 5 minute takeoff rating for Beta and Beta II only: 131 BHP at 2652 RPM Cooling system: Direct drive squirrel-cage blower FUEL Approved fuel grades and capacity: See Section 2. OIL Approved oil grades and capacity: See Section 8. REVISED: 23 DEC 2009 1-5 ROBINSON MODEL R22 SECTION 1 GENERAL PERFORMANCE DEFINITIONS KIAS KCAS KTAS vne Vv MSL Altitude Pressure Altitude Density Altitude ISA BHP MAP RPM MCP TOP Critical Altitude TOGW Knots Indicated Airspeed is speed shown on the airspeed indicator. Knots Calibrated Airspeed is speed shown on the airspeed indicator corrected for instrument and position error. (See page 5-2 for position error correction.) Knots True Airspeed is airspeed relative to undis- turbed air. It is KCAS corrected for pressure altitude and temperature. Never-Exceed Airspeed. Speed for best rate of climb. Altitude above sea level, in feet, indicated by the al- timeter (corrected for position and instrument error) when the barometric subscale is set to the atmospheric pressure existing at sea level. Altitude, in feet, indicted by the altimeter (corrected for position and instrument error) when the barom- etric subscale is set to 29.92 inches of mercury (1013.2 mb). Altitude, in feet, in ISA conditions at which the air would have the same density (it is pressure altitude corrected for OAT). International Standard Atmosphere exists when pressure is 29.92 inches of mercury at sea level, temperature is 15 °C at sea level, and temperature decreases 1 .98 ° C per 1 000 feet of altitude. Brake Horsepower is actual power output of the engine. Manifold Pressure is the absolute pressure, in inches of mercury, in the engine intake manifold. Revolutions Per Minute or speed of engine or main rotor. (Shown by tachometer as percentage of 2550