This summary covers pertinent information on areas, dimensions and
airfoil data.
Rotor Characteristics* Main Tail
Number of Blades 3 2
Rotor Diameter, Feet 26.83 4.25
Rotor Disc Area, square feet 565.49 14.19
Blade Cord (constant), inches 6.75 4.81
Blade Twist, degrees -8°39’ -8°00’
Blade Area (total bladesxCxR),
square feet (tabs not included)
22.64 1.69
Solidity (thrust weighted) .04 .116
Airfoil Section, NACA 0015 0014
(modified)
δ
3
, degrees 0 30°
* Rotor Dimensions do not take into account blade tab area. The above
characteristics are valid for the 269A1185-1 (23.75 in. tab) and
269A1185-5 (74.25 in. tab) main rotor blades.
General
Schweizer RSG, LLC.
Model 269D Helicopter
GENERAL DIMENSIONAL DATA
Pilot's Flight Manual
1-9
Rei
ssued: 16 Jan 2019
Book 3.indd 21 8/4/19 1:25 PM
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