Schweizer 269C-1 - Page 118

Performance
Pilot's Flight Manual
5-6 Reissued: 16 Jan 2019
Fig ure 5-5. Den sity Al ti tude Chart
EX AM PLE:
CON DI TIONS: 6,000 FT PRES SURE AL TI TUDE, 15°C OAT, 100 IAS
- FIND DEN SITY AL TI TUDE -
FOL LOW -15°C LINE TO 6,000 FT PRES SURE AL TI TUDE
LINE: READ DEN SITY AL TI TUDE (3780 FT)
- FIND 1/ (SIGMA) FACTOR -
READ DI RECTLY ACROSS FROM DEN SITY AL TI TUDE, (3780) = 1.058 = 1/ (SIGMA)
100IAS = 98.5 CAS
98.5 CAS X 1.058 = 104.2; ROUND TO 104.0 TRUE AIRSPEED
SCHWEIZER
Model 269C-1 Helicopter
FAA Approved
CSP book 2..indd 118 8/4/19 12:53 PM