Robinson R22 Beta II — Performance Data

This document presents a detailed analysis of the flight performance characteristics of the Robinson R22 Beta II helicopter during the preliminary design stage. It outlines methodologies for estimating performance metrics such as power requirements for hovering and horizontal flight, rate of climb, and descent in autorotation. The analysis is based on simplified mathematical models and empirical data derived from existing helicopter designs. The document aims to provide insights into the operational capabilities of the R22 Beta II, including its maximum rates of climb, speed ranges, and altitude performance, which are critical for design validation and operational planning.

• Take-off mass: 621 kg
• Maximum engine power: 160 HP (derated to 131 HP at lower altitudes)
• Rotor radius: 3.85 m
• Maximum rate of climb at sea level: 6.07 m/s
• Maximum speed in level flight: 178-188 km/h
• Operational ceiling: 4270 m