Rate Of Climb - Door(S) Off; Best Rate Of Climb; Rate Of Climb; Height-Velocity Diagram - Bell BHT-206L3-FM-1 LongRanger-III Flight Manual

BHT-206L3-FM-1
FAA APPROVED
and ENGINE ANTI-ICING switch positions.
Refer to figure 4-6.
The rate of climb data shown in the charts
are "tapeline" rates, which means actual
rates of climb. The rate of climb as
measured with an altimeter will equal the
"tapeline" rate of climb only on a standard
day with a standard temperature lapse
rate.
The following example Is for use with Rate
of Climb chart at takeoff power. The
example is typical for use with all other
Rate of Climb charts.
. EXAMPLE:
Find the maximum rate of climb that can
be attained using takeoff power under the
following conditions:
ENGINE ANTI-ICING - OFF
OAT = 10°C
H, = 14,000 ft.
Gross Weight = 3600 Ibs.
Enter temperature scale at 10°C and
proceed vertically to intersection of the
14,000 feet pressure altitude curve. From
this point, move horizontally to the right to
intersect the 3600 pound gross weight line.
Drop vertically and read a rate of climb of
1530 feet per minute.
4-5. RATE OF CLIMB - DOOR(S)
OFF
Reduce Rate of Climb chart data 100 feet
per minute when operating with any
combination of door(s) off.
4-6. BEST RATE OF CLIMB
Best rate of climb airspeed is:
Calibrated airspeed - 52 KCAS (60 MPH)
Indicated airspeed - 57 KIAS (66 MPH)
4-7. HEIGHT-VELOCITY
DIAGRAM
The Height-Velocity Diagram (figure 4-7)
defines the conditions from which a safe
landing can be made on a smooth, level,
firm surface following an engine failure.
The Height-Velocity Diagram is valid only
when the helicopter gross weight does not
exceed the limits of the Altitude Versus
Gross Weight Limits for Height-Velocity
Diagram (figure 4-6).
4-a. AIRSPEED
CALIBRATION
Refer to figure 4-9 for airspeed installation
correction during level flight.
4-12