MD Helicopters MD900 with PW206E, Flight Manual

Page: 156 / 450

CSP–900RFM206E–1
ROTORCRAFT FLIGHT MANUAL
MD900 With PW 206E
Performance Data
FAA Approved
Original
5–4
5–4. AIRSPEED CALIBRATION
Description: This charts show the difference between indicated and calibrated
airspeeds.
Indicated airspeed (IAS) corrected for position error equals calibrated airspeed
(CAS).
Use of chart: Use the chart as illustrated by the example. To determine calibrated
airspeed, the pilot must know the indicated airspeed.
NOTE
: The example below refers to Figure 5–2.
Example:
Wanted: Calibrated airspeed
Known: Indicated airspeed = 120 knots
Method: Enter the bottom of the chart at the indicated airspeed of 120 knots.
Move up to the airspeed calibration line; move left and read 117 knots,
calibrated airspeed.