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Manual B – Operations AeroPower AeroPower Manual B OPERATIONS MANUAL Revision 1.3 – 02/24/ 2015 Applicable to: B22 and B25 (all versions)
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All information, illustrations, instructions and technical data contained in this manual has been upgraded before printing. MW Fly reserves the right to modify, correct or upgrade general data at any time without any obligation or prior consent from third parties. Publication of any part of this document without written consent of MW Fly is strictly prohibited.
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Manual B – Operations B.7. OPERATING INSTRUCTION B.7.1. Operating limits B.7.1.1. RPM B.7.1.2. Fuel Pressure B.7.1.3. Engine oil pressure B.7.1.4. Engine Oil Temperature B.7.1.5. Reduction Gear Box Oil Temperature B.7.1.6. Coolant Temperature B.7.1.7. Air Intak e Temperature B.7.1.8. Load Factor B.7.1.9.
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Manual B – Operations B.8. ENGINE CONTROL B.8.1. List of Tool Kit for the Pre-flight Checks or Emergency B.8.2. Shelter from Service for Extended Period of Time B.8.3. Return to Service After Long Inactivity B.8.4. Engine Protection When Used in Cold Climates B.9.
Prior to commencing to operate the engine it is crucial to read and understand the contents of this document. If any part of this manual is unclear or there are any doubts on the interpretation, contact an MW Fly service center.
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Manual B – Operations The numeration is an alpha- numeric code that follows format below: B.7.1.8. The first letter indicates the type of manual: A = installation manual B = operations manual C = maintenance manual D = heavy maintenance manual ...
The relationship between the engine serial number and the engine model is indicated in the table B.4.2.1.C. Deleting or modifying the serial number will revoke any warranty and obligation by MW Fly toward current owner. Provide the serial number on any request for an engine part or technical information.
The onus to install MW Fly B22 engine is at the sole discretion and responsibility of the Original Manufacturer, Home Builder or Aircraft Owner. MW Fly cannot assume responsibility for a successful installation in a specific airframe due to the variety of designs existing in the market.
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Manual B – Operations ELECTRO-HYDRALIC DAMPING SYSTEM (ADC): This system avoids the use of a mechanical damping system that is a component that is subject to wear and the risk of breakage. Moreover the ADC system does not need any maintenanc e or periodical adjustment.
Manual B – Operations EASY INSTALLATION: an easy installation of the engine increases the safety and reduces pre-flight controls. In addition the engine has been designed to have an easy access to the control of all pre –flight control areas. ...
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It is forbidden to use a propeller with a polar moment of inertia higher than the maximum prescribed: that will release MW fly from any liability. The engine has not received any certification for aeronautical use. It must be used exclusively on experimental aircraft where an engine failure will not compromise flight safety.
Manual B – Operations The present manual for engine operation is only part of the Technical Documentation and will be supplemented by the respective Installation Manual, Maintenance Manual and Spare Parts List. Pay attention to references to other documentation, found in various parts of this Manual. Where differences exist between this Manual and regulations provided by any authority, the more stringent regulation should be applied.
Manual B – Operations This label is not present on the engine model without reduction gear box. B.3.3.3 Water Expansion Tank USE ETHYLENE GLYCOL ONLY –avoid the use of propylene glycol or just water without ethylene glycol FILL TANK UP TO 2/3 ...
Manual B – Operations ACTIVE DAMPING CONTROL B.3.3.7.P This label is not present on the engine version without a reduction gear box. B.3.3.8. Governor The engine with reduction gear box can also have an integrated constant speed electro-hydraulic governor (A.15.1.2.) installed. In this case there is label on the governor oil pump cover on the front side of the reduction gear box.
All original MW Fly accessories have been designed and tested to operate with the engine. Since MW Fly cannot test all of the accessories available on the market so that the operator is responsible for the choice and installation of the non OEM accessories. Choose an accessory with respect to the following: Carefully check that the accessory doesn’t interfere with any part of the...
These components can seriously compromise flight safety or change engine characteristics and performance. Use only MW Fly original spare parts. These are available to any authorized MW Fly service center. In case of non- fulfillment the guarantee will not any longer valid.
Manual B – Operations B.4. ENGINE DESCRIPTION B.4.1. General Characteristics 4 stroke Otto cycle 4 cylinder boxer Single Over Head Camshaft (SOHC), timing with gears and chain, cam follower and tapper with valve shim, two valves per cylinder. ...
Manual B – Operations The EMS is not integrated in the engine identification code, because that option is available for all of the engines as an aftermarket kit. B.4.3. Cylinder Numeration and Position The cylinders are numbered in the same order that they fire. From a top view of the engine (as show in picture B.4.3.1.P), cylinder #1 is on the top left, cylinder #2 is on the bottom left, cylinder #3 is on top right and cylinder #4 is on the bottom right.
It is not possible to extend the guarantee condition for different uses of the engine. MW Fly declines any responsibility for damage or bodily injury due to the improper end use of the engine. An improper end use of the engine will cause an immediate suspension of the guarantee and will release MW fly from any liability The engine life cannot exceed the TBO limit (see table C.5.2.1.C): when the engine...
Manual B – Operations B.5.2. Dimension B.5.2.1.P Revision 1.3 – 02/24/ 2015 Applicable to: B22 and B25 (all versions)
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Manual B – Operations Di m e n s i o n a l w i t h g e a r b o x Throttle control Ø1.2 bowden 3m length F L Y Upper position INTAKE EFFECT Prop axis Prop axis From radiator Center of...
Manual B – Operations Maximum Dimensions of the Engine Max di mension [mm] direction - direction + Total Max along X axis 644 (568*) 654 (578*) Max along Y axis Max along Z axis 247 (164) 204 (288) B.5.2.1.C * model without reduction gear box The tolerance on these dimensions is ±1 mm.
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Manual B – Operations B22 Version Powe r [HP (kW)] B22D B22H* B22L B22R Take off (max for 5 minutes) 95 (69.8) 131.5 (96.7) 114.7 (84.3) 130.3 (95.8) @rpm @3400 @4300 @3950 @4550 max continuous 82 (60.3) 112.5 (82.7) 98 (72) 110 (80.9) @rpm @3320÷3400...
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Manual B – Operations Graph POWER/MAP with constant RPM: each graph indicates the power output in reference to the different values of RPM in function of MAP. The bold indicates the maximum continuous power in function of the MAP. 5% difference from the graph is permitted.
Manual B – Operations B.5.4.1. B22D [HP] B22D Performance @ full throttle [Kgm] 95@3400 Power Torque 20@3400 [RPM] 2000 2250 2500 2750 3000 3250 B.5.4.3.C Range of use B22D [HP] Available power Necessary power Max cont. power 2000 2250 2500 2750 3000 3250...
Manual B – Operations B.5.4.3. B22L [HP] B22L Performance @ full throttle [Kgm] 114,7@3950 Power Torque 20,8@3950 2250 2500 2750 3000 3250 3500 3750 4000 [RPM] B.5.4.9.C B22L Range of use [HP] Available power Necessary power Max cont. power 2500 2750 3000 3250...
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Manual B – Operations B22L Power @ constant MAP [HP] 29,9 28,5 25,5 22,5 max cont. 2750 3000 3250 3500 3750 4000 4250 [RPM] B.5.4.11.C B22L Power @ constant RPM [HP] 4200 4000 3750 3500 3250 3000 2750 max cont. [inHg] B.5.4.12.C Revision 1.3 –...
Manual B – Operations B.5.4.4. B22R B22R Performace @ full throttle [HP] [Kgm] 130,3@4550 Power Torque 21@4200 [RPM] 2250 2500 2750 3000 3250 3500 3750 4000 4250 4500 B.5.4.13.C B22R Range of use [HP] Available Power Necessary Power Max. cont. Power 2500 2750 3000...
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Manual B – Operations [HP] B22R Power @ constant MAP 29.9 28.5 25.5 22.5 max cont. [RPM] 2750 3000 3250 3500 3750 4000 4250 4500 4750 B.5.4.15.C B22R Power @ constant RPM [HP] 4700 4500 4250 4000 3750 3500 3250 3000 max cont.
Manual B – Operations B.5.4.5 B25D [HP] [Kgm] B25D Performance @ full throttle 110@3400 Power Torque 23,2@3400 [RPM] 2000 2250 2500 2750 3000 3250 B.5.4.17.C B25D Range of use [HP] Available power Necessary power Max. cont. power 2000 2250 2500 2750 3000 3250...
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Manual B – Operations B25D Power @ constant MAP [HP] 29.9 28.5 25.5 22.5 max cont. 2000 2250 2500 2750 3000 3250 3500 [RPM] B.5.4.19.C B25D Power @ constant RPM [CV] 3400 3250 3000 2750 2500 2250 2000 max cont. [inHg] B.5.4.20.C Revision 1.3 –...
Manual B – Operations B.5.4.7. B25L [HP] B25L Performance @ full throttle [Kgm] Power 133,1@3950 Torque 24,1@3950 2250 2500 2750 3000 3250 3500 3750 4000 [RPM] B.5.4.23.C B25L Range of use [HP] Available power Necessary power Max. cont. power 2500 2750 3000 3250...
Manual B – Operations B.5.4.8. B25R [HP] [Kgm] B25R Performance @ full thrott Power 154,2@4550 Torque 24,9@4200 [RPM] 2250 2500 2750 3000 3250 3500 3750 4000 4250 4500 B.5.4.27.C B25R Range of use Available power Necessary power Max. cont. power [RPM] 2500 2750...
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Manual B – Operations B25R Power @ constant MAP [HP] 29.9 28.5 25.5 22.5 max cont. 2750 3000 3250 3500 3750 4000 4250 4500 4750 [RPM] B.5.4.29.C B25R Power @ constant RPM [HP] 4700 4500 4250 4000 3750 3500 3250 3000 max cont.
Manual B – Operations B.5.4.9. Performance Variation Outside of the ISA conditions, the performance of the engine can vary based on height, air temperature and humidity. The variation of engine performance based on height is approximately 1% every 100 meters of height.
Manual B – Operations There is no significant variation in engine performance based on the humidity. The fuel injection system automatically changes the quantity of fuel based on the air temperature and height, so that the engine will run with the correct air//fuel ratio in any atmospheric condition.
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Manual B – Operations B25 Version Cons umption[l/h] B25D B25H* B25L B25R @rpm/ MAP [inHg] Take off 27.6@3400/ 35.4@4300/ 34.5@4200/ 38.5@4700/ 29.9 29.9 29.9 29.9 Max continuous 23@3330/ 29.6@4300/ 28@4070/27.7 30.3@4500/ 27.7 27.8 27.7 At 75% max cont. 17.8@3030/ 22.8@4300/ 20.9@3700/ 23.5@4090/ 25.7...
Manual B – Operations B.5.7. Propelle r speed The maximum propeller speed varies depending on the motor model used. Below is a summary: Model Gear box ratio Max engine Max prpeller speed RPM[rpm] [rpm] B22D/B25D 1÷1 3400 3400 B22H*/B25H* 1÷1 4300 B22L/B25L 1÷1,731...
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Manual B – Operations Ve r s i o n w i t h g e a r b o x B.5.8.2.P Never manually rotate the propeller in the opposite direction. This operation can damage the automatic timing chain tensioner and also disengage the system on the engine starter.
Manual B – Operations B.6. DESCRIPTION OF THE SYSTEMS B.6.1. Cooling system Cyl i n d er Cyl i n d er Te m p e r a t u r e Te m p e r a t u r e Hea d Hea d s e n s or...
Manual B – Operations The temperature of the coolant is measured by two temperature sensors (optional), installed in each head. B.6.2. Lubricant system He a d 1 He a d 2 Ca m s h a f t Ca m s h a f t Ta p p e t De c o m p r .
Manual B – Operations B.6.3. Fuel system I n j e c t or I n j e c t or Fi l t e r Fi l t e r Pr e s s u r e c yl i n d e r 3/4 c yl i n d e r 1/2 n e t n e t...
Manual B – Operations It is important to avoid the risk of vapor lock in the return line to the fuel tanks. The measurement of fuel pressure is performed by a sensor positioned on the left side of the engine on fuel distributor. B.6.4.
Manual B – Operations The injection system is equipped with two high impedance injectors (one per bank). The mixture is adjusted by varying the injection time The recharging circuit uses a 300 Watt generator with anti-phased windings, oil cooled, and a 26 A voltage regulator.
Manual B – Operations B.7. OPERATING INSTRUCTION B.7.1. Operating limits B.7.1.1. RPM The two ECUs use a pick up (one for each ECUs) to read the engine RPM. The RPM are the one read from the ECUs. B22 Version B22D B22H B22L B22R...
Manual B – Operations The power percentages expressed in the table refers to installations with a fixed pitch propeller and it is supposed that the propeller, in flight, reaches the maximum permissible engine speed. Exceeding the maximum allowable engine speed is a condition of potential risk to the integrity of the engine and must be prevented by using propellers with appropriate characteristics for power output B.7.1.2.
Manual B – Operations with cold starts, particularly in cold climates (ambient temperature less than 5 ° C), even when with automatic procedure ended. In this case, by varying the position of the throttle, look for the engine speed that produces less vibration. This is usually about 1800 rpm. The fault of the oil pressure control of the ADC system produces an increase of vibration in idle condition.
Manual B – Operations Version without governor Reduction Gear Box Te mperature [°C] B22L/B25L B22R/B25R Min in flight Nominal 45÷70 45÷80 Typical B.7.1.7.C Version with governor Reduction Gear Box Te mperature [°C] B22L/B25L B22R/B25R Min in flight Nominal 60÷95 65÷105 Typical B.7.1.8.C The oil temperature reducer represents an index of the efficiency of the gears of the transmission.
Manual B – Operations A supply te mpe rature above the reported value indicates a mechanical or electronic problem. Do not fly until the problem is identified and resolved. At temperatures below 15°C with particular environmental conditions, frost may form and impact negatively on the butterfly valve. With temperatures below 0°...
Manual B – Operations B.7.1.10 Electrical Voltage The injection system is able to function properly compensating for any variations in the voltage of the recharging system within the limits indicated Electrical Voltage [volt] All versions Maximum 14.8 Minimum Normal 12.5÷13.5 B.7.1.13.C The voltage read on a voltmeter is the average between the charging voltage and the battery voltage.
Manual B – Operations The choice of the optimal viscosity of the oil to be used should be determined on the basis of the average atmospheric temperature of the area of use (A.10.3.1.C). If the engine is used in hot climates it is recommended to increase the frequency of oil changes.
Manual B – Operations There is a possibility that there may be water residue or small intrusions present in the fuel. It is advisable to filter the fuel before placing in the tanks in order to preserve the fuel circuit from impurities that may damage the components.
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Manual B – Operations Check the tightness of the propeller and the absence of any play between the propeller blades and hub. Leaks Inspection Check for the leakage of fuel, coolant or lubricant. In particular, before moving the aircraft, it is good to check the floor below the engine or tanks for the presence of stains or smudges due to defects in onboard systems.
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Manual B – Operations up the pressurized circuit is low, it is necessary bleed the cooling system as described in section A.9.6., but not before isolating the cause that led to the low level. If the engine requires frequent topping up of the water circuit is likely that there is a leak from the head gasket: running the engine in this condition can cause a detonation phenomena, resulting in serious mechanical damage.
Manual B – Operations position follow the fuel line from tank up to the engine and check for leaks or even small leakages of fuel. Carefully check the area of the shunt fuel, which has to be clean and free of sludge or smudges of greenish color.
Manual B – Operations Do not start the engine with throttle in fully open position: this not only makes starting more difficult, but also may cause damage to the starter system. Set the master switch to the on position. Power on the main fuel pump for about 3 seconds, so as to pressurize the fuel system, the pump will restart automatically when the engine starts and will automatically turn off when the engine stops.
Manual B – Operations Upon reaching 50° C, the FADEC system will impose a new engine idling speed of between 950 and 1050 RPM. If the oil temperature is above 50° C then the engine will immediately run at a speed of between 950 and 1050 RPM after starting.
Manual B – Operations Bring the throttle into full open position. The engine should reach the expected RPM. Bring the throttle back into idle position. The engine should neither turn off nor manifest irregularities. Also check that the throttle runs regularly without jamming. If even one of these checks fails, or if there are doubts, it is mandatory not to fly, and perform all the necessary ground checks.
Manual B – Operations Gradually reduce the rotation speed by adjusting the throttle. Thanks to the adoption of the liquid cooling system the risk of the sudden drop of oil and water temperature is avoided during prolonged descent with the engine idling.
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Manual B – Operations Warm up the engine with hot air jets direct to the oil sump and engine heads. It is necessary to use fuel specific to the season in which the engine is used. The formulation of the fuel varies with the presence of some components or additives, particularly alcohol, which contains water and may cause condensation under certain conditions.
Manual B – Operations B.7.4. Behavior in Case of Emergency If during use, the engine surpasses the limits prescribed in paragraph B.7.1, it is mandatory to contact an authorized service center before using the engine again. Exceeding the operating limits is recorded in the ES- m instrument and will cause the termination of the product warranty.
Manual B – Operations In the case of installations with constant speed propeller, privilege high speeds with low MAP value. Land as soon as possible. B.7.4.4. Exceeding the Maximum Oil Temperature Reduce the power to the minimum necessary for the flight as soon as possible and according to the flight conditions.
Manual B – Operations B.7.4.8. Fuel Pressure Below the Limit on the Ground Stop the engine and wait at a safe distance while the engine cools down and then run some checks as summarized below: Fill the fuel tanks. Look for any fuel leaks below the aircraft or in the upper part of the engine where any leaked fuel can easily collect.
Manual B – Operations In case the generator alarm is off There is probably a battery failure: turn off all non essential loads for the flight. Disconnect the battery from the electrical circuit by switching off the master switch. In proximity of landing site, exclude the main control unit (circuit A): this way the engine automatically remains above 1500 rpm.
Manual B – Operations installed exclude the main ECU, if the fault persists, turn on the main ECU and exclude the auxiliary ECU. o Gradually reduce the engine RPM to look for a setting in which the vibrations are lower. o if it does doesn’t work increase the RPM looking for a new setting in which the vibrations are lower o Land as soon as possible.
Manual B – Operations B.8. ENGINE CONTROL All checks must be carried out according to the methods described in the latest revision of the maintenance manual. Only qualified and trained technicians on this particular type of engine are authorized to perform maintenance work and repairs Keep in mind the directives contained in the Service Bulletins according to their priorities compared to those described in the manuals.
Manual B – Operations Purge, through the gascolator, the fuel system in order to remove the possible presence of water condensation. Turn the engine acting on the propeller in the direction of normal operation and doing at least 10 turns of the propeller. Replace the spark plugs and the relative cap after checking the integrity (C.6.11.2).
Manual B – Operations B.9. MALFUNCTION RESOLUTION Only qualified and trained technicians on this particular type of engine are authorized to perform maintenance work and repairs If the following collection of solutions will not solve the problem you should contact an authorized service center.
Manual B – Operations Check the fuel pressure at full throttle: if it does not reach at least 3.5 bar is necessary to revise the fuel distributor and fuel pumps. Check the efficiency of the ADC system and decompression valve. The coolant in the expansion tank is frequently below the level Check the pressurized cap is correctly closed.
Any malfunction should be identified and resolved before proceeding fly. In order to improve and fix any defects it is important that the user communicate to MW Fly any anomalies and their resolution or any other consideration that can improve the safety in the use of the engine and clarity of the information contained in these manuals.
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Manual B – Operations Malfunction format Date Serial N° Last name Fist name Tel. N. E-mail Aircraft manufacturer Aircraft model Propeller model N° of blades Tractor Pushing N.° of hours Main use School Flight > 1 hour Flight < 1 hour Frequency of use Daily Weekly...
B.9.3.1.C B.10. AUTHORIZED DISTRIBUTOR SOUTH AFRICA Albasera Aircraft NORTH AMERICA MW Fly Sales and Service North Ame rica AUSTRALIA and NEW ZEALAND Corvus Aero Australia CHINA and ASIA Bushcaddy International Inc. The complete list and full name of the authorized service centers is available on the website http://www.mwfly.it.
Manual B – Operations B.11. MANUAL UPDATE LIST Version Pertinence Paragraph Pages Date modif Da #001911 B.1. Su mmary 07/ 02/ 2013 Da #001911 B.2. Introduction 07/ 02/ 2013 Da #001911 B.3. Safety 07/ 02/ 2013 Da #001911 B.4. Engine Description 07/ 02/ 2013 Da #001911 B.5.
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