Alsim al250 Technical specifications

al250
TWIN ENGINED PISTON
AIRCRAFT
FLIGHT MANUAL

AL250 Flight Manual
MEP
Table of Contents
0 General 0-1
0-1 INTRODUCTION ............................. 0-3
0-2 REVISIONS LOG ............................. 0-4
0-3 SAFETY INSTRUCTIONS ........................ 0-5
0-4 EMERGENCY STOP ........................... 0-6
0-5 USING THIS MANUAL .......................... 0-7
0-6 GLOSSARY ................................ 0-8
0-7 UNITS OF MEASUREMENT ....................... 0-13
0-7-1 Speed ............................... 0-13
0-7-2 Distance .............................. 0-13
0-7-3 Mass ................................ 0-13
0-7-4 Volume ............................... 0-13
0-7-5 Volume/Mass Relation ...................... 0-13
0-7-6 Pressure .............................. 0-14
0-7-7 Temperature ............................ 0-14
1 Limitations 1-1
1-1 GENERAL ................................. 1-2
1-2 AIRSPEED LIMITATIONS FOR SAFE OPERATION (IAS) ....... 1-2
1-2-1 TWO ENGINES OPERATING .................. 1-2
1-2-2 ONE ENGINE INOPERATIVE .................. 1-2
1-3 AIRSPEED INDICATOR MARKERS ................... 1-3
1-4 POWER PLANT LIMITATIONS ..................... 1-3
1-5 POWER PLANT INSTRUMENT MARKINGS .............. 1-5
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AL250 Flight Manual
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1-6 FUEL LIMITATIONS ........................... 1-6
1-7 WEIGHT LIMITS ............................. 1-6
1-8 CENTRE OF GRAVITY LIMITS ..................... 1-6
1-9 MANOEUVRE LIMITS .......................... 1-6
1-10 GYRO SUCTION LIMITS ........................ 1-6
1-11 AUTOMATIC PILOT ........................... 1-7
1-12 COMMUNICATION ............................ 1-7
2 Normal Procedures 2-1
2-1 GENERAL ................................. 2-2
2-2 CABIN INSPECTION ........................... 2-3
2-3 BEFORE START UP ........................... 2-3
2-4 ENGINE START UP ........................... 2-4
2-5 AFTER START UP ............................ 2-4
2-6 TAXI .................................... 2-5
2-7 ENGINE CHECK ............................. 2-5
2-8 BEFORE LINE UP ............................ 2-5
2-9 AFTER TAKE OFF ............................ 2-6
2-10 CRUISE .................................. 2-6
2-11 BEFORE DESCENT ........................... 2-6
2-12 INITIAL APPROCH ............................ 2-6
2-13 APPROACH OR DOWNWIND ...................... 2-7
2-14 BEFORE LANDING ............................ 2-7
2-15 RUNWAY VACATED ........................... 2-7
2-16 SHUTDOWN AND APRON ....................... 2-8
3 Abnormal and Emergency Procedures 3-1
3-1 GENERAL ................................. 3-2
3-2 ENGINES ................................. 3-3
3-2-1 DETECTING DEAD ENGINE .................. 3-3
3-2-2 ENGINE FAILURE / FIRE BEFORE V1 ............. 3-3
3-2-3 ENGINE FAILURE / FIRE AFTER V1 .............. 3-3
3-2-4 ENGINE SECURING (FEATHERING) .............. 3-4
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AL250 Flight Manual
MEP
3-2-5 ENGINE FAILURE / FIRE IN FLIGHT .............. 3-5
3-2-6 PRECAUTIONARY ENGINE SHUTDOWN ........... 3-6
3-2-7 PROPELLER OVERSPEED .................... 3-6
3-2-8 UNFEATHERING AND RESTARTING ENGINE ......... 3-7
3-2-9 LOW OIL PRESSURE ....................... 3-7
3-2-10 HIGH OIL PRESSURE ...................... 3-7
3-2-11 HIGH OIL TEMPERATURE ................... 3-8
3-2-12 LOW OIL TEMPERATURE .................... 3-8
3-2-13 BOTH ALTERNATORS FAILED ................. 3-9
3-2-14 ONE ENGINE INOPERATIVE APPROACH ........... 3-10
3-2-15 STARTING ENGINE WITH EXTERNAL POWER ........ 3-11
3-3 FIRE .................................... 3-12
3-3-1 ENGINE FIRE ON GROUND ................... 3-12
3-3-2 ELECTRICAL FIRE ON GROUND ................ 3-12
3-3-3 ELECTRICAL FIRE IN FLIGHT ................. 3-12
3-4 LANDING GEAR ............................. 3-13
3-4-1 LANDING GEAR UNSAFE WARNING .............. 3-13
3-4-2 MANUAL LANDING GEAR EXTENSION ............ 3-13
3-5 EMERGENCY LANDING ......................... 3-14
3-6 INOPERATIVE FLAPS LANDING .................... 3-14
3-7 SPIN RECOVERY ............................. 3-14
3-8 FLIGHT INSTRUMENTS ......................... 3-15
3-8-1 VACUUM PUMP FAILURE .................... 3-15
4 Performance 4-1
5 Cockpit Overview 5-1
5-1 COCKPIT FITTINGS ........................... 5-2
5-1-1 LIGHTING ............................. 5-2
5-1-2 SEATS ............................... 5-4
5-1-3 HEADSETS ............................ 5-5
5-2 FLIGHT DECK .............................. 5-5
5-2-1 PILOT’S FLIGHT DECK ..................... 5-6
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AL250 Flight Manual
MEP
5-2-2 CENTRAL FLIGHT DECK .................... 5-7
5-2-3 PEDESTAL ............................ 5-8
6 Aircraft Systems 6-1
6-1 FLIGHT CONTROLS ........................... 6-4
6-1-1 PRIMARY FLIGHT CONTROLS ................. 6-4
6-1-2 SECONDARY FLIGHT CONTROLS ............... 6-6
6-2 POWER PLANT ............................. 6-10
6-2-1 ENGINE AND PROPELLER CONTROLS ............ 6-10
6-2-2 ENGINE COOLING AND HEATING CONTROLS ........ 6-12
6-2-3 ENGINE INSTRUMENTS ..................... 6-15
6-3 STARTER ................................. 6-19
6-4 LANDING GEAR ............................. 6-20
6-4-1 NORMAL OPERATION ...................... 6-20
6-4-2 EMERGENCY LANDING GEAR OPERATION .......... 6-22
6-4-3 WHEEL BRAKES ......................... 6-23
6-5 FLIGHT INSTRUMENTS ......................... 6-24
6-5-1 AIRSPEED INDICATOR ..................... 6-24
6-5-2 VERTICAL SPEED INDICATOR ................. 6-25
6-5-3 TURN AND BANK INDICATOR ................. 6-25
6-5-4 ALTIMETER ............................ 6-26
6-5-5 ATTITUDE INDICATOR ..................... 6-27
6-5-6 VACUUM GAUGE ......................... 6-28
6-5-7 WARNING LIGHTS ........................ 6-29
6-6 NAVIGATION INSTRUMENTS ...................... 6-30
6-6-1 RMI ................................ 6-30
6-6-2 EHSI ................................ 6-31
6-6-3 GYRO SYSTEM .......................... 6-33
6-6-4 MAGNETIC COMPASS ...................... 6-34
6-6-5 OBI ................................ 6-34
6-7 AVIONICS ................................. 6-36
6-7-1 EFIS ................................ 6-37
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AL250 Flight Manual
MEP
6-7-2 ALSIM ALA-500 .......................... 6-38
6-7-3 GARMIN GTN 650 ........................ 6-39
6-7-4 ADF ................................ 6-40
6-7-5 NAV/COM 2 ............................ 6-41
6-7-6 MARKER ANNUNCIATORS ................... 6-42
6-7-7 HEADSET CONNECTION .................... 6-44
6-7-8 AUDIO CONTROL ........................ 6-45
6-8 ELECTRICAL SYSTEM ......................... 6-47
6-8-1 OVERVIEW ............................ 6-47
6-8-2 BATTERY ............................. 6-48
6-8-3 ALTERNATOR AND AMMETER ................ 6-48
6-8-4 BREAKERS ............................ 6-49
6-9 FUEL SYSTEM .............................. 6-51
6-9-1 FUEL QUANTITY INDICATOR ................. 6-51
6-9-2 FUEL SELECTORS ........................ 6-52
6-9-3 ELECTRIC FUEL PUMPS .................... 6-52
6-9-4 PRIMER BUTTONS ....................... 6-52
6-10 AUTOMATIC FLIGHT .......................... 6-53
6-10-1 FLIGHT DIRECTOR ....................... 6-53
6-10-2 FLIGHT DIRECTOR AND AUTOPILOT PANEL ........ 6-54
6-10-3 AUTOPILOT MODES ...................... 6-60
6-11 ICE PROTECTION ............................ 6-64
6-11-1 ALTERNATE STATIC VALVE .................. 6-65
6-12 LIGHTS .................................. 6-65
6-13 MISCELLANEOUS INSTRUMENTS ................... 6-66
6-13-1 CLOCK AND STOPWATCH ................... 6-66
6-13-2 THERMOMETER ......................... 6-67
6-13-3 REGISTRATION PLATE ..................... 6-68
Rev. 1.8 ©2021 ALSIM - All Rights Reserved -1-7

AL250 Flight Manual
MEP
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Rev. 1.8 ©2021 ALSIM - All Rights Reserved -1-8

General AL250 Flight Manual
MEP
0 General
0-1 INTRODUCTION ......................... 0-3
0-2 REVISIONS LOG ......................... 0-4
0-3 SAFETY INSTRUCTIONS .................... 0-5
0-4 EMERGENCY STOP ....................... 0-6
0-5 USING THIS MANUAL ...................... 0-7
0-6 GLOSSARY ............................ 0-8
0-7 UNITS OF MEASUREMENT ................... 0-13
0-7-1 Speed ........................... 0-13
0-7-2 Distance .......................... 0-13
0-7-3 Mass ............................ 0-13
0-7-4 Volume ........................... 0-13
0-7-5 Volume/Mass Relation .................. 0-13
0-7-6 Pressure .......................... 0-14
0-7-7 Temperature ........................ 0-14
Rev. 1.8 ©2021 ALSIM - All Rights Reserved 0-1

General AL250 Flight Manual
MEP
©2021 ALSIM - All Rights Reserved
Disclosure of this information is restricted
This document is the sole property of ALSIM customers. You shall agree not to disclose,
reproduce or transfer this document in whole or in part, without the express written consent
of ALSIM.
All product names mentioned in this manual may be registered trademarks and are recognized
as such, even if not expressly marked.
Rev. 1.8 ©2021 ALSIM - All Rights Reserved 0-2