HPH Glasflugel 304 eS User manual

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FL LI IG GH HT T M MA AN NU UA AL L S SU UP PP PL LE EM ME EN NT T
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FO OR R T TH HE E S SA AI IL LP PL LA AN NE E
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HPHLtd.

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Fl li ig gh ht t M Ma an nu ua al l S Su up pp 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
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HPHLtd.
0.1 Record of revisions
Any revision of the present manual, except actual weighing data,
must be recorded in the following 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.
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Date of Issue: 11/17
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HPHLtd.
Table of Contents
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

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

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Date of Issue: 09/16
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HPHLtd.
1.1 Introduction
The sailplane flight manual supplement has been prepared to
provide pilots with information for 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, 1st September, 2003; CS-22,
Amendment 2, 5th March, 2009 and Special Conditions defined in
CRI H-101 and CRI E-101.
1.3 Warnings, cautions and notes
Not affected.

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Date of Issue: 09/16
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HPHLtd.
1.4 Descriptive data
Glasflügel 304 eS is a self-sustaining sailplane version of the HPH
304S–Shark equipped with electric motor and foldable propeller.
Power-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 measurements)
-FCC box (FES connecting circuit)
-Power switch
-DC/DC converter (converts high voltage to 12V)
1.5 Three view drawing
Not affected.

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SECTION 2
2. Limitations
2.1 Introduction
2.2 Airspeed
2.3 Airspeed 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 temperature warnings
2.14.7 List of other warnings

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Date of Issue: 09/16
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2.1 Introduction
Section 2 includes operating limitations, instrument markings, and
basic placards necessary for safe operation of the Front Electric
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 not start rotate motor below
this speed
VPOmax
Maximum speed to
start motor
160
86
100
Do not start rotate motor above
this speed

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Document No.: G304eS/AFMSupp, R00
Date of Issue: 09/16
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HPHLtd.
2.3 Airspeed indicator markings
Airspeed indicator 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.
2.9 Kinds of operation
Not Affected.

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Date of Issue: 09/16
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2.10 Minimum equipment
The instruments as well as the appropriate parts of the minimum
equipment must 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 spins are prohibited.
2.11 Aerotow
Not affected.
2.12 Other limitations
Not affected

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Date of Issue: 11/17
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2.13 Limitation placards
AIRSPEED LIMITATION IAS
VPO Powrplant max. oper. speed 160 km/h 86 KIAS 100 mph
VPOmaxMax. speed to start motor 160 km/h 86 KIAS 100 mph
VPOmimMin. speed to start motor 80 km/h 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 of both Battery packs
90 V
Nominal capacity of each cell
40 Ah
Energy storage capacity
4,2 kWh
Maximum voltage per cell
4,16 V
Middle voltage
3,7 V
Minimum voltage of each cell
3,2 V

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Date of Issue: 11/17
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HPHLtd.
2.14.3 Power-plant instrument markings
FES power plant has a FCU instrument with high resolution sunlight
visible colour display. Detailed data about FCU and its operation can
be found in separate FES FCU INSTRUMENT 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, charger will not start charging, as it is very
dangerous to charge cells, which were discharged below this
voltage level.
The same is valid in case of high temperatures of power-plant
components.

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Date of Issue: 10/16
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HPHLtd.
2.14.4 List of RPM warnings
Condition
Level
FCU warning
Required action
Warning messages of propeller speed (RPM)
RPM between
4300 - 4500
yellow
Yellow RPM
digits
Keep attention on
RPM
RPM over
4500
Red
Red RPM digits
Reduce power to
decrease RPM below
4500
2.14.5 List of voltage warnings
Condition
Level
FCU warning
Required action
Battery packs warning messages, based 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
keep continuous
operation
Cell difference in
single pack more
than300mV
Red
Cells diff.
> 300mV, Stop
FES motor!
Stop FES motor
Difference between
total voltage in
each pack more
than 1.0V
Red
Battery diff.
> 1.0V, Reduce
power!
Reduce power to
keep continuous
operation
Single cell Voltage
level below 2.8V
Red
Cell critical
< 2,8V, Stop
FES motor!
Stop FES motor

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HPHLtd.
WARNING
If pilot do not stop motor in case of warning Critical Voltage, Stop
FES motor!, red warning message appears, counting down 30
seconds. After 30 second FCU will stop motor automatically, in order
to protect batteries from over discharge.
During 30 seconds of count-down pilot can decide to press throttle
knob to override automatic motor stop. Message will disappear and
motor will continue to run. Each override action is saved to the
memory of FCU instrument.
See FCU INSTRUMEN manual section 8.3.1 for further information.
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!
Reduce power to
keep continuous
operation
Temperature
difference between
each Battery pack is
more than 6°C
Red
Battery diff.
> 6°C, Stop
FES motor!
Stop FES motor
Battery pack high
temperature, more
than 45°C
yellow
Battery High
> 45°C, Reduce
power!
Reduce power to
keep continuous
operation
Battery pack extremely
high temperature,
more than 55°C
Red
Batt. Ext. High
> 55°C, Stop
FES motor!
Stop FES motor
Battery pack
temperature is critical,
more than 75°C
Red
Batt. Critical
> 75°C, Land
immediately!
Stop FES motor

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Date of Issue: 10/17
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HPHLtd.
Condition
Level
FCU warning
Required action
Motor temperature warning messages
Motor temperature is
high, more than70°C
Yellow
Motor High
> 70°C, Reduce
power!
Reduce power to
keep continuous
operation
Motor temperature is
extremely high, more
than 90°C
Red
Motor Ext. High
> 90°C, Stop FES
motor!
Stop FES motor
Controller temperature warning messages
Controller temperature
is high, more than
70°C
Yellow
Controller 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 is open,
Close Canopy!
Close canopy /
check canopy
sensor
Power switch
Motor do not start
immediately
Yellow
Warning, Check
Power switch!
Turn on
Power switch
Ventilation lever
Motor temperature is
rising too fast!
Red
Warning, Check
ventilation!
Open ventilation
Fire alarm
Fire or smoke in
battery compartment
Red
Red light on
instrument panel
and sound
warning
Proceed
according section
3.7.3

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

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Document No.: G304eS/AFMSupp, R00
Date of Issue: 09/16
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HPHLtd.
3.1 Introduction
Section 3 provides checklist and amplified procedures for coping
with emergencies that may occur during flight with motor in
operation.
3.2 Canopy jettison
1. Switch OFF power switch
2. Grasp (from 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 jettison, stop motor and switch OFF power switch,
if there is still enough time to do that.
WARNING
Before you bail out, stop motor and switch OFF power switch, if
there is still enough time to do that.

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HPHLtd.
3.5 Spin recovery
Not affected.
3.6 Spiral dive recovery
Not affected.
3.7 Other emergencies
3.7.1 Motor fail to start
In the event that the motor fail to start, continue flying as a pure glider.
3.7.2 Power loss during flight
If power is lost during flight, push the control stick 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 for any strange behaviour.
·If everything is Ok switch on Power switch and try to
start motor again.
NOTE
Check if you maybe forgot to switch the Power switch ON.
Reminding message (on the FCU)“Check power switch”
should appear if there was high enough throttle set.