ALPHA Trainer-POH.pdf - Pipistrel

5-2 ALPHA Trainer
REV. 0 Performance
Introduction
www.pipistrel.eu
This section provides information on aircraft’s airspeed calibration, stall speeds and general performance.
All data published was obtained from test flight analysis using average flying skills.
ALPHA Trainer has demonstrated adequate engine cooling performance at ambient temperatures of
45°C (113 F). This is not to be regarded as the limit temperature, however temperatures higher than
the mentioned may have adverse effects on engine cooling and overall performance.
Airspeed indicator calibration (IAS to CAS)
Pitot tube’s mounting point and construction makes IAS to CAS correction values insignificant.
Therefore pilots should regard IAS to be same as CAS. IAS = CAS.
Stall speeds
Stall speeds at MTOM (1040 lbs / 472.5 kg) for ALPHA Trainer are as follows:
flaps retracted; 0° (retracted):
flaps in 1 st position; +15° (down):
flaps in 2 nd position: +25° (down):
40 kts (74 km/h)
37 kts (81 km/h)
34 kts (64 km/h)
Take-off performance
All data published in this section was obtained under following conditions:
aircraft at MTOM
elevation: sea level
wind: calm
runway: hard runway
Data extrapolated for ICAO standard atmosphere
ALPHA Trainer
takeoff ground roll at MTOM
takeoff runway length (over 50 ft/15 m obstacle)
ALPHA Trainer
555 ft
870 ft
Notes
In order to meet the data for takeoff runway length over 50 ft obstacle maintain Vx (52 kts,
98 km/h) after take-off.
Soft (grass) runways increase the published take-off performance data by 20%.
Takeoff runway length may vary depending on the wind, temperature, elevation and
wing & propeller surface condition.