Pipistrel ALPHA Trainer LSA User Manual

5-10
PAGE
ALPHA Trainer LSA
Pilot Operating Handbook
POH-162-00-40-001
PAGE REV. 0
SECTION 5
PERFORMANCE DATA
5.6.4. EFFECTS OF THE WIND
Wind (head, cross or tailwind) aects aircraft’s ground speed (GS).
Headwind on takeo or landing causes the takeo and landing distance
length to shorten as the GS is slower during these two flight stages. The
opposite holds true for tailwind on takeo and landing as tailwind increases
takeo and landing distances significantly.
The table below provides data about the eect of the wind (headwind “+”,
tailwind “-”) on takeo runway lenght. Data is referenced for sea level (SL)
performance at MTOM.
DISTANCE
[ft] /
[m]
WIND SPEED
-6 kts -4 kts -2 kts 0 kts +4 kts +8 kts +12 kts
Ground roll
680 /
270
645 /
197
605 /
184
555 /
170
525 /
160
495 /
151
480 /
146
50 ft / 15 m
obstacle
1130 /
345
1065 /
325
965 /
294
870 /
265
810 /
247
760 /
232
720 /
220
WARNING: Tailwind aects takeo and landing performance by more
than twice as much as headwind does.
Headwind shortens takeo and landing distances by 25 feet with every 3
kts of wind increase (e.g. provided there is a 6 kts headwind on takeo and
landing, distances will be approximately 50 ft (16 meters) shorter than ones
published in the manual).
Tailwind increases takeo and landing distances by 60-65 feet with every 3
kts wind increase (e.g. provided there is a 6 kts tailwind on takeo or landing,
distances will be approximately 120-130 feet longer then ones published in
the manual).
CAUTION: The maximum allowed crosswind component speed on takeo
and landing is 18 kts (33 km/h). In these conditions it is recommended not to
takeo with flaps positioned at +2.
CAUTION: The runway length required increases by 10 % for every 5 kts of
crosswind component.

Pipistrel ALPHA Trainer LSA Specifications

General

Brand	Pipistrel
Model	ALPHA Trainer LSA
Category	Aircrafts
Language	English