STEMME S 10 - Page 12

Flight Manual STEMME S 10 Date of Issue Oct. 1, 1990 page: 11
Amendment No.: -- Date: --
LBA-approved
A4010013_08a-11/13.11.2015 14:34:00/14:34
2.2 Airspeed
The airspeed limitations and their importance for the use of the aircraft are shown as follows:
Speed IAS Remarks
V
NE
Never exceed speed (maximum
permissible airspeed in calm weather)
270 km/h
146 knots
168 mph
This speed must not be exceeded and the control
movement must be not more than
1
/
3rd
.
V
RA
Maximum airspeed in rough air 180 km/h
97 knots
112 mph
Do not exceed this speed
except in smooth air and
then only with caution. Examples of rough air are lee-
wave rotors, thunderclouds etc.
V
A
Calculated maneuvering speed 180 km/h
97 knots
112 mph
Above this limit the controls must not be moved fully or
abruptly because the motorgl
ider structure could be
over-stressed under certain conditions.
V
FE
Permissible maximum airspeed for
operation of flaps
positive position +5 deg., +10 deg.
Landing position L (+16 deg.)
180 km/h
97 knots
112 mph
140 km/h
76 knots
87 mph
These air
speeds may not be exceeded in the flap position
indicated.
V
LO
Permissible maximum airspeed for the
operation of the landing gear
140 km/h
76 knots
87 mph
At airspeeds in excess of this airspeed the landing
gear may not be lowered or raised.
2.3 Airspeed Indicator Markings
The following table gives the airspeed indicator markings and the meaning of the colors (AUW = all-up
weight).
Marking (IAS) Value
or Range]
Meaning
White arc 85-180 km/h
46-97 knots
53-112 mph
Positive flap operation range.
(Lower limit is 1.1 V
S0
in landing configuration with maximum AUW. Upper limit is the
maximum airspeed with positive flap position.)
Green arc 90-180 km/h
51-97 knots
59-112 mph
Normal operating range.
(Lower limit is speed 1.1V
S1
at max. AUW and most forward C.G. position with
flaps neutral; upper limit is rough air speed.
Yellow arc 180-270 km/h
97-146 knots
112-168 mph
Maneuvers must be conducted with caution and only in smooth air.
L 140 km/h
76 knots
87 mph
Max. permissible airspeed with flaps in landing position and for landing gear
operation
Red line 270 km/h
146 knots
168 mph
Max. airspeed for all operations.
Blue line 115 km/h
62 knots
71 mph
Best rate of climb speed V
Y.
Yellow
triangle
110 km/h
59 knots
68 mph
Approach speed at max. AUW.