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Document No.: G304eS/AFMSupp, R00 
Date of Issue:  09/16 

 

4-3 

H

P

H

 

Ltd.

 

 

 

4.3.3  Motor starting on the ground 

1.  

Remove propeller covers and a tail dolly 

2.  

Open battery compartment cover 

3.  

Check that Power switch is OFF 

4.  

Insert connecting cable between the battery packs 

5.  

Switch ON BMS switch of each battery pack 

6.  

Seal battery compartment cover with glider tape 

7.  

Seat into the glider, and close canopy 

8. 

 Check that no one is around propeller zone, in front of glider 
or in line of propeller 

9.  

Switch on FCU 

10. 

Switch on Power switch 

11. 

Wait about 8 second, for FCU to show all battery bottles 

12. 

Start motor but use only low power to check proper operation 

13. 

Check if propeller braking and automatic positioning are 
working fine 

14. 

Switch OFF Power switch 

15. 

Switch OFF FCU 

4.4 

Pre-flight inspection 

Additionally: 
13. 

Check POWER Switch OFF 

14. 

Turn FCU ON 

CAUTION 

In case that you would like to test system at maximum power, 

somebody needs to hold a fuselage tube down, and hold a glider.

 

Summary of Contents for Glasflugel 304 eS

Page 1: ...N NT T F FO OR R T TH HE E S SA AI IL LP PL LA AN NE E Č Čá ás sl la av vs sk ká á 2 23 34 4 2 28 84 4 0 01 1 K Ku ut tn ná á H Ho or ra a C CZ ZE EC CH H R RE EP PU UB BL LI IC C t te el l f fa ax x 4 42 20 0 3 32 27 7 5 51 13 34 44 41 1 email info hph cz HPH Ltd ...

Page 2: ...g table and in case of approved Sections endorsed by the responsible airworthiness authority The new or amended text in the revised page will be indicated by a black vertical line in the left hand margin and the Revision No and the date will be shown on the bottom left hand of the page Rev No Affected Section Affected Pages Date of Issue Approval Date of approval Date of Inser tion Signature R00 a...

Page 3: ... 3 1 Appr 09 16 0 4 09 16 3 2 Appr 09 16 3 3 Appr 09 16 3 4 Appr 11 17 3 5 Appr 09 16 1 1 0 09 16 1 1 09 16 1 2 09 16 4 4 0 Appr 09 16 4 1 Appr 11 17 4 2 Appr 09 16 2 2 0 Appr 09 16 4 3 Appr 09 16 2 1 Appr 09 16 4 4 Appr 11 17 2 2 Appr 09 16 4 5 Appr 09 16 2 3 Appr 09 16 4 6 Appr 11 17 2 4 Appr 09 16 4 7 Appr 09 16 2 5 Appr 09 16 4 8 Appr 09 16 2 6 Appr 09 16 4 9 Appr 09 16 2 7 Appr 11 17 4 10 App...

Page 4: ...sa ai il lp pl la an ne e Document No G304eS AFMSupp R01 Date of Issue 11 17 0 3 HP H Ltd Section Page Date of Issue Section Page Date of Issue 6 6 0 09 16 6 1 09 16 6 2 09 16 7 7 0 09 16 7 1 09 16 7 2 09 16 7 3 09 16 7 4 09 16 7 5 11 17 7 6 11 17 7 7 11 17 7 8 8 8 0 09 16 8 1 11 17 8 2 11 17 ...

Page 5: ...ts Section General 1 a non approved section Limitations 2 an approved section Emergency procedures 3 an approved section Normal procedures 4 an approved section Performance 5 a partly approved section Weight and balance equipment list 6 a non approved section Sailplane and systems description 7 a non approved section Sailplane handling care and maintenance 8 a non approved section Supplements 9 ...

Page 6: ...f fo or r t th he e s sa ai il lp pl la an ne e Document No G304eS AFMSupp R00 Date of Issue 09 16 1 0 HP H Ltd SECTION 1 1 General 1 1 Introduction 1 2 Certification basis 1 3 Warnings cautions and notes 1 4 Descriptive data 1 5 Three view drawing 1 5 Three view drawing ...

Page 7: ...r the safe and efficient operation of the Glasflügel 304 eS sailplane This manual includes the material required to be furnished to the pilot by JAR 22 It also contains supplemental data supplied by the sailplane manufacturer 1 2 Certification basis This type of sailplane has been approved by EASA in accordance with JAR 22 Amendment 7 1 st September 2003 CS 22 Amendment 2 5 th March 2009 and Speci...

Page 8: ...er plant Sailplane is equipped with a high tech powerful FES front electric propulsion system developed for high performance sailplanes Main parts of the FES system are Brushless electric motor Controller for motor Foldable propeller Battery packs FES BP 14S with internal BMS Battery Management System Charger 1200W or 600W FCU FES control unit instrument LXUI box with Shunt for current and voltage...

Page 9: ... indicator markings 2 4 Weight 2 5 Center of gravity 2 6 Approved manoeuvres 2 7 Manoeuvring load factors 2 8 Flight crew 2 9 Kinds of operation 2 10 Minimum equipment 2 11 Aerotow 2 12 Other limitations 2 13 Limitation placards 2 14 Power plant 2 14 1 Motor 2 14 2 Battery packs 2 14 3 Power plant instrument markings 2 14 4 List of RPM warnings 2 14 5 List of voltage warnings 2 14 6 List of all te...

Page 10: ...c Sustainer system The limitations included in this section and in Section 9 have been approved by the EASA 2 2 Airspeed Airspeed limitations and their operational significance are shown below Speed IAS km h KIAS IAS mph Remarks VPO Maximum speed with rotating propeller 160 86 100 Do not exceed this speed with rotating propeller at any power setting VPOmin Minimum speed to start motor 80 43 50 Do ...

Page 11: ... markings and their color code significance are shown below Marking Value or range IAS Significance km h KIAS mph Blue line 100 54 62 Best rate of climb speed vy 2 4 Weight Maximum weight in baggage compartment 2 kg 4 4 lbs 2 5 Center of gravity There is no change in permitted CG position 2 6 Approved manoeuvres Not affected 2 7 Manoeuvring load factors Not affected 2 8 Flight crew Not affected 2 ...

Page 12: ...st be of an approved type Minimum equipment 1 Airspeed indicator color marked as in par 2 3 1 Altimeter Outside air temperature indicator OAT with sensor when flying with water ballast 1 Magnetic compass FES FCU Instrument unit 1 set of four point safety harness 1 automatic or manual parachute 1 Sailplane Flight Manual Limitation placards in the cockpit WARNING Aerobatic maneuvers and Intentional ...

Page 13: ...43 KIAS 50 mph FCU UNIT must be turned ON during the flight 2 14 Power plant WARNING Glasflügel 304 eS is a sustainer system and it is prohibited from taking off solely 2 14 1 Motor Maximum power 23 kW 30 hp at 4500 RPM Recommended RPM 3000 RPM Continuous power 16kW continuous power at 100V 2 14 2 Battery packs Maximum allowed total voltage of both Battery packs 118 V Minimum allowed total voltage...

Page 14: ...RUMENT manual Important indications and warnings there are listed in this chapter NOTE It is always pilots decision when to stop the motor For instance if he is in critical situation where his life is dependable on a few more minutes of engine run he can decide to discharge battery packs even lower However if cells will be discharged too much they can be unrecoverable damaged Below 2 8V per cell c...

Page 15: ... on total Voltage measurements Total Voltage level is low at 95V yellow Low Voltage Reduce power Reduce power to keep continuous operation Total Voltage level is critical at 90V Red Critical Voltage Stop FES motor Stop FES motor Battery pack warning messages based on each cell Voltage measurements Cell difference in single pack more than150mV Yellow Cells diff 150mV Reduce power Reduce power to ke...

Page 16: ...rmation 2 14 6 List of all temperature warnings Condition Level FCU warning Required action Battery pack warning messages based on temperature measurements of each pack Battery pack temperature is below 5 C yellow Battery Temp Low 5 C Consider that full power cannot be maintain for a longer time Temperature difference between each Battery pack is more than 3 C yellow Battery diff 3 C Reduce power ...

Page 17: ...ler High 70 C Reduce power Reduce power to keep continuous operation Controller temperature is extremely high more than 90 C Red Contr Ext High 90 C Stop FES motor Stop FES motor 2 14 7 List of other warnings Condition Level FCU warning Required action Canopy Canopy is opened yellow Warning Canopy is open Close Canopy Close canopy check canopy sensor Canopy is still not closed Red Warning Canopy i...

Page 18: ...sue 09 16 3 0 HP H Ltd SECTION 3 3 Emergency procedures 3 1 Introduction 3 2 Canopy jettison 3 3 Bailing out 3 4 Stall recovery 3 5 Spin recovery 3 6 Spiral dive recovery 3 7 Other emergencies 3 7 1 Motor fail to start 3 7 2 Power loss during flight 3 7 3 Fire 3 7 3 1 Fire on the ground 3 7 3 2 Fire during flight 3 7 4 Loss of 12V electrical power in flight ...

Page 19: ...m below the red grips right and left of the canopy frame 3 Pull them back 4 Push the canopy upward 3 3 Bailing out 1 Switch OFF power switch 2 Direct the sailplane to an uninhabited place if time permits 3 Canopy jettison acc to 3 2 4 Release safety harness and spread them aside 5 Bend you legs under the body 6 Roll over the cockpit frame 3 4 Stall recovery Not affected WARNING Before canopy jetti...

Page 20: ...ck forward gently to sustain desired airspeed Than you can do next actions Check first if you maybe unintentionally switched OFF power switch If this actually happened just switch Power switch ON again and adjust throttle knob If Power switch was not unintentionally switched OFF as described in 1st point proceed with next actions switch OFF Power switch and then also FCU turn ON FCU and check it f...

Page 21: ...ion try to land carefully on both landing wheels simultaneously to avoid possible damage of the propeller WARNING Try to avoid landing into high grass or similar NOTE L D of sailplane with propeller in wind milling phase is only a little degraded so you might have enough time to choose a suitable landing place if you have enough altitude NOTE If there is a grass runway in good condition available ...

Page 22: ... NOTE Buzzer beeping can be switched off by FIRE ALARM switch on instrument panel Other evidence of possible fire in battery compartment is continuously increasing temperature of battery packs after power was reduced In this case you should land safely as soon as possible to prevent in flight fire If battery temperature signal disappear during the flight you should land at closest appropriate airf...

Page 23: ...dio flight computer FCU etc stop working during soaring flight than continue to fly as a pure sailplane In such case you will not be able to start FES However in case that FCU still works you can try to start motor if necessary During powered flight If FCU stop working during powered flight then also motor stops working However propeller would still rotate as windmill and it would not be possible ...

Page 24: ...rting on the ground 4 4 Pre flight inspection 4 5 Normal procedures and recommended speeds 4 5 1 Takeoff and climbing 4 5 2 Cruise and climbing with running motor 4 5 2 1 Propeller stop with electronic braking 4 5 2 2 Propeller positioning 4 5 3 Approach and landing 4 5 3 1 After landing 4 5 3 2 Taking Battery packs out of sailplane 4 5 4 Flight in rain and icing conditions 4 5 5 Aerobatics 4 5 6 ...

Page 25: ...arking in a hangar When inspecting the sailplane check for cracks in surface finish blisters or uneven surface and if in doubt check with authorized specialized personnel 1 f Perform FES test run as described in chapter 4 3 3 g Check the FES system visually especially propeller blades condition h Perform Fire and smoke alarm function test described in 304eS Maintenance manual supplement section 1 ...

Page 26: ... into the fuselage so that contacts are facing forward 6 Slide it back to rear position 7 Put another pack into the fuselage so that contacts are facing rearward 8 Place fixation plates to marked positions 9 Tighten battery pack fixation knobs 10 Insert and secure temperature sensor connectors to each battery pack 11 Insert RED contact pin on cable to front pack and BLACK BLUE battery v 2 4 contac...

Page 27: ...nt cover with glider tape 7 Seat into the glider and close canopy 8 Check that no one is around propeller zone in front of glider or in line of propeller 9 Switch on FCU 10 Switch on Power switch 11 Wait about 8 second for FCU to show all battery bottles 12 Start motor but use only low power to check proper operation 13 Check if propeller braking and automatic positioning are working fine 14 Switc...

Page 28: ...gs Motor starting procedure during flight 1 Check if FCU instrument was turned on 2 Turn ON Power Switch 3 Check if there is green LED ON left lower LED check Voltage level If there is no green LED or red LED is blinking motor will not run Read FES FCU instrument manual for detailed FCU description 4 Start motor with Throttle knob rotating in clockwise direction gently WARNING It is not allowed to...

Page 29: ... on lower power settings where efficiency of complete system is the highest During powered flight always keep the FCU turned ON Switch OFF Power switch if motor is not running 4 5 2 1 Propeller stop with electronic braking To stop propeller with electronic braking you need to rotate Throttle knob in counter clockwise direction for 1 step from zero throttle so that throttle line on display starts b...

Page 30: ...sitioning by pressing throttle knob In settings it is possible to adjust time between steps from 50ms to 1 sec power used for positioning at 115V and at 90V number of steps after hall sensor for position is detected 4 5 3 Approach and landing 4 5 3 1 After landing After landing or in the end of flying day always take out both batteries out of the sailplane and depending on its voltage and planned ...

Page 31: ...y compartment box 7 Remove both temperature sensor connectors from each battery pack 8 Fix temperature sensor cable to the side of battery compartment box 9 Un tighten battery pack fixation knobs 10 Take the fixation plate out 11 Firmly grip the front battery by a carrier strap 12 Lift it out of the fuselage and put it on safe place 13 Firmly grip the rear battery by a carrier strap and slide it f...

Page 32: ...sailplane 4 5 5 Aerobatics 4 5 6 Flying without battery packs and propeller G 304eS sailplane can be used in following configurations Equipped with Battery packs and motor and its accessories standard configuration With battery packs removed See chapter 4 5 6 1 for requirements of use With battery packs and propeller blades removed See chapter 4 5 6 2 for requirements of use With propeller blades ...

Page 33: ...propeller blades and battery packs It is possible to fly with G 304eS without propeller blades and battery packs uninstalled only in case when following requirements are fulfilled 1 Position of CG lies within permitted range See chapter 6 6 for proper CG position determination 2 All free objects from battery compartment have been removed 3 Cables for battery packs connection have been properly ins...

Page 34: ...ller blades only in case when following requirements are fulfilled 1 Position of CG lies within permitted range See chapter 6 6 for proper CG position determination 2 Propeller blades have been properly uninstalled and gaps between spinner and rest of fuselage sealed See FES HPH P1 102 Propeller manual chapter 5 and 304eS MMSupp chapter 3 22 for propeller blades installation removal instruction WA...

Page 35: ...l lp pl la an ne e Document No G304eS AFMSupp R00 Date of Issue 09 16 5 0 HP H Ltd SECTION 5 5 Performance 5 1 Introduction 5 2 Approved data 5 3 Non approved data 5 3 1 Speed polar 5 3 2 Demonstrated crosswind performance 5 3 3 Rate of climb 5 3 4 Range 5 3 5 Maximal altitude that can be sustained ...

Page 36: ...o G304eS AFMSupp R00 Date of Issue 09 16 5 1 HP H Ltd 5 1 Introduction Section 5 provides approved data for airspeed calibration stall speeds and non approved further information The data in the charts has been computed from actual flight tests with the sailplane using average piloting techniques 5 2 Approved data Not affected ...

Page 37: ... dependable on sailplane weight To achieve maximum altitude gain you should use about 15kW of power not full power as total efficiency is better at lower power settings Usually suitable climbing speed it is about 100 km h 54 KIAS 62 mph at positive flap setting 5 3 4 Range The maximum range of powered cruising flight without water ballast is about 100km 62 miles depending on lift sink conditions T...

Page 38: ...04eS AFMSupp R00 Date of Issue 09 16 6 0 HP H Ltd SECTION 6 6 Weight and Balance 6 3 Maximum permitted load of permanent tail water ballast tank 6 4 Maximum permitted load of wing water ballast tank 6 5 Maximum permitted load of drainable tail water ballast tank 6 6 Founding of CG position in case of motor and battery packs removed ...

Page 39: ...te of Issue 09 16 6 1 HP H Ltd 6 1 Introduction Not affected 6 2 Weight and Balance Record and permitted payload range Not affected 6 3 Maximum permitted load of permanent tail water ballast tank Not affected 6 4 Maximum permitted load of wing water ballast tank Not affected 6 5 Maximum permitted load of drainable tail water ballast tank Not affected ...

Page 40: ...ase of battery packs removed For preliminary estimation of CG position following equation can be used Permitted CG range is 251 378 mm WARNING Position of sailplane CG in case motor and battery packs removed must be determined by weighting of sailplane in intended configuration Sailplane CG and empty weight must lie in permitted range of Trim plan G304S FM chapter 2 5 Weighting procedure is descri...

Page 41: ...f fo or r t th he e s sa ai il lp pl la an ne e Document No G304eS AFMSupp R00 Date of Issue 09 16 6 3 HP H Ltd CG calculation battery packs removed kg Empty weight of fully equipped sailplane mm CG position of empty fully equipped sailplane kg Pilot and parachute weight ...

Page 42: ...it controls 7 3 Instrument panel 7 3 1 FCU instrument 7 3 2 Power switch 7 4 Landing gear system 7 5 Seats and safety harness 7 6 Pitot and static system 7 7 Airbrake system 7 8 Baggage compartment 7 9 Water ballast system 7 10 Power plant 7 10 1 General 7 10 2 Motor description 7 10 3 Propeller description 7 10 4 Wiring 7 10 5 Control Units 7 10 6 Main Fuse 7 10 7 FCU control unit description 7 1...

Page 43: ...tilation is opened When is pushed forward than ventilation is opened Also from amount of air coming into cockpit and its noise is quite evident to the pilot if ventilation is opened or not So there is no indication on FCU about position of ventilation lever however FCU instrument monitors how quickly motor temperature is rising in time If motor temperature rising is faster than it is usual then pi...

Page 44: ...le brake knob Rotary encoder button by rotation clockwise is used as throttle from 0 100 of Power by rotation counter clockwise is used as electronic propeller brake by pressing is used for changing menus and resetting alarms 3 Red led shows different alarm codes from controller see Maintenance manual chapter 3 24 4 Green led shows normal operation of controller 5 Red led turns on if there are som...

Page 45: ...ot affected 7 6 Pitot and static system The static pressure orifices are located on both sides of the fuselage Total pressure is read in the fin leading edge Keep the static pressure holes clean refer to 304S Flight manual 4 3 Daily inspection 7 7 Airbrake system Not affected 7 8 Baggage compartment The baggage compartment may carry up to 2 kg 4 4 lbs of baggage including all installed equipment 7...

Page 46: ...powerful FES front electric propulsion system developed for high performance sailplanes Main parts of the FES system are Brushless electric motor Controller for motor Foldable propeller Battery packs FES BP 14S with internal BMS Battery Management System Charger 1200W or 600W FCU FES control unit instrument LXUI box with Shunt for current and voltage measurements FCC box FES connecting circuit Pow...

Page 47: ...pl le em me en nt t f fo or r t th he e s sa ai il lp pl la an ne e Document No G304eS AFMSupp R01 Date of Issue 11 17 7 5 HP H Ltd CAUTION Emergency card must be placed in sailplane cockpit during all sailplane operation with battery packs installed ...

Page 48: ... 3000 RPM Continuous power 16kW continuous power at 100V Max Torque 75 Nm Max Current 200 A Max Voltage 180V More detailed data about motor which is used on G 304 eS powered sailplane there are described in separate FES HPH M100 MOTOR manual 7 10 3 Propeller description Propeller consists of hub connected to the motor and two foldable fixed pitch propeller blades Material of blades is carbon compo...

Page 49: ...on batteries FES battery packs to motor controller There is installed also precharge resistor 7 10 5 Control Units Motor controller is used to convert high voltage DC to three phase AC voltage which goes to motor It also send RPM and controller temperature by CAN bus to FCU instrument Ventilators are used to cool down motor controller Power switch double pole is used to give 12V power to main cont...

Page 50: ...n battery compartment Battery packs can be removed after flight from fuselage compartment for recharging of batteries During flight there are battery packs fixed by strutting in compartment 7 10 9 Battery pack description FES battery pack is build from 14 cells which are wired in serial For FES application two packs are needed Lithium Polymer LiPo cells produced by Kokam manufacturer are used Each...

Page 51: ...i il lp pl la an ne e Document No G304eS AFMSupp R00 Date of Issue 09 16 8 0 HP H Ltd SECTION 8 8 Sailplane handling care and maintenance 8 1 Introduction 8 2 Power plant inspection periods 8 3 Sailplane alterations or repairs 8 4 Ground handling road transport 8 5 Cleaning and care 8 6 Tie down ...

Page 52: ...prevents propeller blades from opening Do not forget to remove propeller covers before flight Battery packs During the sailplane car transport always remove batteries out of the sailplane Use special box can be ordered from manufacturer for battery storage during the transport Always transport batteries in car luggage compartment pushed forward up to the front wall Transportation box should be add...

Page 53: ... If you want to manufacture your own battery transporting box Ask manufacturer for information about box necessary box qualities to ensure safe transport of the battery packs Appropriate venting of transport box must be assured 8 5 Cleaning and care Not affected 8 6 Tie down Do not leave FES equipped sailplane outside on the rain unless is covered with high quality all weather covers Protect motor...

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