F
LIGHT
M
ANUAL
Date
:
Issue 3: 25
th
May 2010
5-3
P92-JS
SECTI ON 5
PERFORMANCE
AIRSPEED INDICATOR SYSTEM CALIBRATION
(Approved data)
Graph shows calibrated airspeed V
CAS
as a function of indicated airspeed V
IAS
.
Fig. 5-1. C
ALIBRATED
VS
INDICATED AIRSPEED
(B
OTH
MTOW)
Example:
Given
Find
V
IAS
= 78 Kts
V
CAS
= 75 Kts
NOTE
Indicated airspeed assumes 0 instrument error
40
50
60
70
80
90
100
110
120
130
140
40
50
60
70
80
90
100
110
120
130
140
IAS (kts)
C
A
S
(
k
ts
)
78
75