Dynali H3 EASYFLYER SPORT Owner's manual

Pilot Operating Handbook
Dynali H3 EasyFlyer Sport
Ultralight Helicopter
Dynali_POH_H3 EasyFlyer Sport / Revision 2.5 –Issue date 30.10.2020
Copyright © by Dynali Helicopter Company, Thines, Belgium

Pilot Operating Handbook
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SECTION 0
GENERAL
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All rights reserved. Under the copyright laws, this manual may not be copied, in whole or in part, without the written consent of
Dynali SPRL. Dynali reserves the right to change or improve its products and to make changes in the content of this manual
without obligation to notify any person or organization of such changes or improvements. Mandatory notifications to the Civil
Aviation Authorities or other regulatory organizations are unaffected by this.
Dynali H3 EasyFlyer Sport, the Dynali logo and word picture mark are trademarks or registered trademarks of Dynali, registered
in Belgium and other countries.
Other company and product names mentioned herein may be trademarks of their respective companies. Mention of third-party
products is for informational purposes only and constitutes neither an endorsement nor a recommendation. Dynali assumes no
responsibility with regard to the performance or use of these products. All understandings, agreements, or warranties, if any, take
place directly between the vendors and the prospective users.
Every effort has been made to ensure that the information in this manual is accurate. Dynali SPRL is not responsible for printing
or clerical errors.
For any question or request, please contact :
Dynali Helicopter Company
101, Avenue Thomas Edison
1402 –Thines (BE)
[email protected]
www.dynali.com
Tel : [phone]
Fax : [phone]

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REVISION LOG
SECTION
Inserted by
Rev. N°
Date
1
Dynali SPRL
2.4
12.11.2017
2
Dynali SPRL
2.4
12.11.2017
3
Dynali SPRL
2.4
12.11.2017
4
Dynali SPRL
2.4
12.11.2017
5
Dynali SPRL
2.4
12.11.2017
6
Dynali SPRL
2.4
12.11.2017
7
Dynali SPRL
2.4
12.11.2017
8
Dynali SPRL
2.5
30.10.2020
9
Dynali SPRL
2.4
12.11.2017
10
Dynali SPRL
2.4
12.11.2017

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PILOT OPERATING HANDBOOK FOR DYNALI H3 EASYFLYER SPORT
Model : _____________________________________________________________
Serial N° : ___________________________________________________________
Registration : ________________________________________________________
Type Certificate N° : ___________________________________________________
Aircraft builder and
type certificate holder : _________________________________________________
Distribution Partner : ___________________________________________________
Owner : _____________________________________________________________
NOTE
This helicopter may be operated only in strict compliance with the limitations
and procedures contained in this manual. The pilot must imperatively remain
within the flight envelope indicated by the instruments and by the contents of
this manual.
This flight manual is designed as an operational guide for the pilot and includes all
necessary information required by the regulations. It cannot be considered in any case
as an instruction manual.
It also includes additional information provided by the manufacturer.
It is the responsibility of the pilot to ensure the certification and the flight condition of
the helicopter. The pilot in command is the only decision maker on board, and should
cancel the flight in any case of doubt.
The manual is not a substitute for competent theoretical and practical training
on the operation of this aircraft. Failure to adhere to its provisions or to take
proper flight instruction can have fatal consequences.
This flight manual is always to be carried on board of the aircraft and must be kept in
current, up-to-date status. The latest revisions and version status is available at
www.dynali.com. Extent and revision status of the manual is recorded in the revision
log and the table of contents.

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TABLE OF CONTENTS
SECTION 1 - GENERAL.......................................................................................................... 7
1.1 INTRODUCTION........................................................................................................................7
1.2 CERTIFICATION........................................................................................................................7
1.3 PERFORMANCE DATA AND OPERATING PROCEDURES...................................................8
1.4 DEFINITION OF TERMS ...........................................................................................................8
1.5 3-VIEW DRAWING OF THE H3 EASYFLYER ‘SPORT’ ...........................................................9
1.6 DESCRIPTION.........................................................................................................................10
1.7 TECHNICAL CHARACTERISTICS..........................................................................................10
SECTION 2 - LIMITS IN USE................................................................................................. 12
2.1 GENERAL................................................................................................................................12
2.2 ENVIRONMENTAL LIMITATIONS...........................................................................................14
2.3 COLOUR CODE FOR INSTRUMENT MARKINGS.................................................................15
2.4 AIRSPEED LIMITATIONS .......................................................................................................15
2.5 ROTOR AND ENGINE SPEED LIMITATIONS........................................................................16
2.6 ENGINE AND TRANSMISSION LIMITATIONS.......................................................................16
2.7 WEIGHT LIMITS ......................................................................................................................18
2.8 CENTER OF GRAVITY (CG) LIMITS......................................................................................19
2.9 LOAD FACTOR LIMITS...........................................................................................................19
2.10 AUTHORISED OPERATION .................................................................................................20
2.11 NOISE LEVEL........................................................................................................................20
2.12 PLACARDS............................................................................................................................21
SECTION 3 - EMERGENCY PROCEDURES........................................................................ 22
3.1 ENGINE FAILURE –AUTOROTATION ..................................................................................22
3.2 FORCED DITCHING................................................................................................................25
3.3 EMERGENCY EVACUATION..................................................................................................25
3.4 TAIL ROTOR OR TRANSMISSION FAILURE IN TRANSLATION .........................................26
3.5 TAIL ROTOR OR TRANSMISSION FAILURE IN HOVER......................................................26
3.6 ENGINE FIRE/SMOKE ON GROUND.....................................................................................26
3.7 ENGINE FIRE/SMOKE IN FLIGHT..........................................................................................26
3.8 LANDING INTO TREES OR HIGH VEGETATION..................................................................26
3.9 LOSS OF VISIBILITY...............................................................................................................27
3.10 GOVERNOR FAILURE..........................................................................................................27
3.11 ALARM AND WARNING LIGHTS..........................................................................................27
SECTION 4 - NORMAL PROCEDURES................................................................................ 31
4.1 DAILY OR EXTERNAL PRE-FLIGHT CHECKLIST.................................................................31
4.2 STANDARD CHECKLIST FOR H3 EASYFLYER ‘SPORT’.....................................................34
SECTION 5 - PERFORMANCE ............................................................................................. 38
5.1 GENERAL................................................................................................................................38
5.2 ALTITUDE DENSITY DIAGRAM .............................................................................................39

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5.3 HOVER IN GROUND EFFECT................................................................................................40
5.4 HOVER OUTSIDE GROUND EFFECT ...................................................................................41
5.5 HEIGHT-SPEED DIAGRAM ....................................................................................................42
5.6 ENGINE PERFORMANCE ......................................................................................................43
SECTION 6 - WEIGHT AND BALANCE................................................................................. 46
6.1 EMPTY WEIGHT ET BALANCE..............................................................................................46
6.2 PROCEDURE FOR WEIGHING THE HELICOPTER..............................................................47
6.3 CALCULATION OF WEIGHT AND BALANCE........................................................................47
6.4 WEIGHT SHEET......................................................................................................................49
6.5 LATERAL BALANCE ...............................................................................................................50
SECTION 7 - SYSTEMS........................................................................................................ 51
7.1 CHASSIS & UNDERCARRIAGE .............................................................................................51
7.2 ENGINE & ENGINE MOUNT...................................................................................................52
7.3 MAIN TRANSMISSION............................................................................................................53
7.4 MAIN TRANSMISSION GEARBOX (MTG) .............................................................................55
7.5 MAIN ROTOR ..........................................................................................................................55
7.6 TAIL ROTOR............................................................................................................................56
7.7 FLIGHT CONTROLS ...............................................................................................................56
7.8 RADIATORS ............................................................................................................................58
7.9 STABILIZERS ..........................................................................................................................58
7.10 FUEL CIRCUIT.......................................................................................................................59
7.11 CABIN ....................................................................................................................................59
SECTION 8 - HANDLING AND MAINTENANCE ................................................................... 60
8.1 GENERAL................................................................................................................................60
8.2 OBLIGATORY DOCUMENTS..................................................................................................60
8.3 MAINTENANCE LOGBOOK....................................................................................................61
8.4 MAINTENANCE AND PROCEDURES....................................................................................61
8.5 MAINTENANCE TRACKING ...................................................................................................62
8.6 SCHEDULED MAINTENANCE................................................................................................63
SECTION 9 - SAFETY TIPS.................................................................................................. 64
SECTION 10 - WARRANTY CONDITIONS............................................................................ 72

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SECTION 1 - GENERAL
1.1 INTRODUCTION
This manual is designed as an operating guide for pilots, instructors, and
owners/operators, providing information for the safe and efficient operation of this
helicopter. It includes documentation required by the competent certification authority.
This handbook is not however designed as a substitute for adequate and competent
flight instruction.
Pilots of this aircraft must hold a proper license, including the class rating “helicopter”,
corresponding to the aircraft’s model. A special endorsement may be required to fly
with passengers. It is the pilot’s responsibility to be familiar with this handbook, the
special characteristics of this helicopter, and all other information and legal
requirements relevant for the operation in his country. The pilot is responsible for
determining that the helicopter is in a safe condition for flight, and for operation of the
aircraft with in compliance with the procedures and limitations set out in this manual.
It is the owner’s/operator’s responsibility to have this helicopter registered and insured,
according to country-specific regulations. The aircraft owner/operator is also
responsible for maintaining the helicopter in airworthy condition. Maintenance
instructions are provided in SECTION 8 of this manual as well as in the Assembly
Manual.
Note that depending on the kind of operation, type of maintenance activity or
component involved, the competent authority may dictate qualified personnel and/or
certified facilities.
1.2 CERTIFICATION
The H3 EasyFlyer Sport is designed, tested and certified according to the French
design specifications for ultralight helicopters (Code HUL) including the latest
amendment published on the date of this revision, it has also been designed and tested
for conformity with the British Civil Airworthiness Requirements (BCAR) and CS-VLR,
although these latter two certifications have not been solicited.
The corresponding certification documents (Fiche d’identification) have been issued
by the French DGAC (General Directorate of Civil Aviation).

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1.3 PERFORMANCE DATA AND OPERATING PROCEDURES
The legal basis for operating a helicopter is provided by national laws and regulations.
The helicopter must be operated in compliance with any technical specifications and
limitations under which national approval may be conditional (e.g. Type Approval Data
Sheet).
All documented performance data and operating procedures have been identified
within the certification processes for this helicopter by means of ground tests, flight
tests and detailed analysis.
1.4 DEFINITION OF TERMS
This manual uses “WARNING”, “CAUTION”and “NOTE”in bold capital letters to
indicate especially critical and important instructions. Additionally, thecolor of the panel
(red, yellow and grey shading) highlights the significance of the instruction.
Definitions for each term are given below.
WARNING !
A warning means that the neglect of the appropriate procedure or condition
could result in personal injury or death.
CAUTION
A caution means that the neglect of the appropriate procedure or condition
could result in damage or destruction of equipment.
NOTE
A note stresses the attention for a special circumstance, which is essential to
emphasize.

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1.5 3-VIEW DRAWING OF THE H3 EASYFLYER SPORT

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1.6 DESCRIPTION
The Dynali H3 EasyFlyer Sport is an ultralight two-seat helicopter in a side-by-side
seating configuration. The main structure is a stainless steel chassis which frames the
engine, the cabin, the tail structure and all the main and rear transmission.
The main rotor mast is made from steel and the main rotor blades are in extruded
aluminum or molded carbon. The rotor head is controlled by push-pull rods through the
swash plate.
The tail structure is made of an aluminum boom, supported by two carbon tail struts.
The tail rotor blades are formed in carbon and are controlled by push-pull cables. The
cabin cell and the stabilizer are made from vacuum infused carbon fiber and the canopy
is in perspex.
1.7 TECHNICAL CHARACTERISTICS
GENERAL
Airframe length..................................................................................6.20 m
Maximum Length (including main rotor)............................................8.00 m
Height ...............................................................................................2.50 m
Height on wheels ..............................................................................2.60 m
Interior cabin width............................................................................1.30 m
Width of undercarriage......................................................................1.80 m
Empty weight………………………………285 kg (standard configuration)
MTOW (max.)…………………...........................................................450 kg
Fuel tank capacity.................................................................................60 L
Regular fuel...............................................................Unleaded 98 or UL91
Low level warning light..........................................................................15 L
Instrument reading................................ (1/2 = 34L) (1/4 = 22L) (0/4 = 15L)
MAIN ROTOR
2-blade pitch articulated, semi-rigid on teetering hinge
Diameter............................................................................................7.14 m
Number of blades.......................................................................................2
Blade chord........................................................................................18 cm
Blade twisting............................................................................................0°
Blade weight........................................................................................12 kg
Blade tip speed at 100% of nominal configuration .......................690 km/h
TAIL ROTOR

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4-blade, pitch articulated, rigid type without articulation
Diameter..............................................................................................0.8 m
Number of blades.......................................................................................4
Blade chord.......................................................................................5.5 cm
Blade twisting............................................................................................5°
Blade weight .......................................................................................120 g
Blade tip speed at 100% of nominal configuration .......................580 km/h
TRANSMISSION
Main transmission and Main Transmission Gearbox (MTG)
Main Transmission.................................................Pulleys & Four V-belts
Main transmission gearbox (MTG).......................90° conic spiral gearing
Reduction ration MTG......................................................................3.55 / 1
Freewheel ..........................................................................6.6kN - 6 rollers
Rear transmission and Rear Transmission Gearbox (RTG)
Rear transmission............................................................................... Shaft
Rear transmission gearbox (RTG) .......................90° conic spiral gearing
Reduction ratio RTG .............................................................................2 / 1
Reduction ratios
Engine / main transmission shaft ....................................................... 2.9 / 1
Engine / engine gear..........................................................................2.4 / 1
Engine / main rotor........................................................................... 10.6 / 1
Tail rotor / main rotor..........................................................................7.3 / 1
ROTAX ENGINE CONFIGURATIONS
▪ 4-cylinder, four-stroke spark-ignition engine with opposed cylinders
▪ Liquid cooled cylinder heads
▪ Air cooled cylinders
▪ Dry sump forced lubrication with separate oil tank
▪ Automatic valve adjustment by hydraulic tappet
▪ Mechanical and/or electrical fuel pump
▪ Electronic dual ignition
▪ Electric starter (12V 0.6kW)
▪ Air intake system, exhaust system with muffler

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H3 EasyFlyer Sport
100 CV
115 CV
115 CV
Engine
Rotax
912ULS
Rotax
912ULS-I
Rotax
914UL
Bore
1350 cm3
1350 cm3
1200 cm3
Specificity
Carburretors
Injection M150
Turbo
ENGINE COOLING AND LUBRICATION
Engine coolant
Glycol diluted at 50%
Quantity.................................................................................. 6L maximum
Engine oil
Type............Synthetic oil with anti-friction additive for 4-stroke engine
Capacity...............................................................................................3.2 L
Recommended oils .........................................................Motorcycle 5W40
Consumption...................................................................0.1 L/h maximum
Oil MTG
Type................................................Hypoid SAE 70 to 90 (SWEPCO 201)
Capacity...............................................................................................0.8 L
Oil RTG
Type ...............................................Hypoid SAE 70 to 90 (SWEPCO 201)
Capacity............................................................................................125 ml
Oil in the free-wheel
Type ............... Anti-friction additive oil FUCHS RENOLIN MR30 VG100
Capacity..............................................................................................40 ml
SECTION 2 - LIMITS IN USE
2.1 GENERAL
This section contains operating limitations, instrument markings and basic placards
which are required for safe operation of the helicopter, including its engine, and
standard equipment or systems.

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WARNING !
The operation of a helicopter demands professional pilot instruction and
dedicated training on helicopters. Without valid license, the helicopter must not
be operated.
WARNING !
During the entire flight, adequate rotor loading must be maintained. Do not
perform any manœuvres resulting in the sensation of feeling lightness or near
weightlessness.
WARNING !
Smoking on board is strictly prohibited.
CAUTION
This helicopter has been designed and tested for a safe design load at maximum
gross weight. Flying at high speed in turbulent air, especially in combination
with aggressive manœuvres or a steep turn, can easily create higher loads on
the aircraft.
NOTE
This helicopter does not comply with the terms of the international authority for
civil aviation (ICAO). There is no international common regulatory system for
ultralight helicopters.
NOTE
During the certification process, all required safe loads have been successfully
demonstrated with an adequate safety margin. However hard landings or landing
on uneven surfaces may result in excessive loads on certain components.
Following such incidents extra attention should be given during the external pre-
flight check.

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2.2 ENVIRONMENTAL LIMITATIONS
Minimum operating Outside Air T°, pour vol en sécurité....................-15 °C
Maximum operating Outside Air T°, pour vol en sécurité..................+40 °C
Maximum wind speed or gust intensity, pour vol en sécurité…....... 60 km/h
Maximum demonstrated crosswind component………….....30 km/h (16kts)
Maximum tailwind component for take-off and landing….....30 km/h (16kts)
Maximum demonstrated operating altitude……….......................... 10 000 ft
Slope landing ........................................................8° longitudinal / 4° lateral
WARNING !
Do not consider flying in the likelihood of severe weather. Thunderstorms may
develop rapidly with the risk of heavy precipitation or hail, severe turbulence
with strong vertical air movements, and lightning strikes. If, despite proper flight
planning, a thunderstorm should be encountered, consider a precautionary
landing immediately.
NOTE
It is the responsibility of the pilot / operator to make the decision if flight
operation is safe.

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2.3 COLOUR CODE FOR INSTRUMENT MARKINGS
Red
Operating limits (needle should not enter red during operation)
Yellow
Precautionary or special operating procedure range
Green
Normal operating range
2.4 LIMITATIONS
Max speed....................................................................................140 km/h
Speed to never exceed (VNE).....................................................155 km/h
Speed to never exceed (VNE) without windows……………… ........ 80 km/h
Green arc .................................................................... 70 km/h - 140 km/h
Yellow arc ................................................................ 140 km/h - 155 km/h
Red arc ........................................................................................155 km/h
WARNING !
The VNE must never be exceeded.
WARNING !
Depending on installed optional equipment, VNE may be lower !
WARNING !
Sudden or large forward input on the controls must be avoided at all means,
even at airspeed within green arc. Do not exceed maximum speed when flying
through turbulence, gusts or rough winds.

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2.5 ROTOR AND ENGINE SPEED LIMITATION
Tachymètre
Rotor
Rotor
%
Moteur
Tachymètre
Moteur
[RPM]
[RPM]
Red mark
495
93
5000
Yellow arc
525
96
5250
Green arc
Green arc
535
100
5500
565
103
5800
Yellow arc
Yellow arc
580
106
6000
Red arc
Red mark
600
109
Red mark
CAUTION
After engine start, the engine RPM will rise to between 2500 and 3000 RPM.
Clutch should only be engaged with engine idling.
2.6 ENGINE AND TRANSMISSION LIMITATIONS
Engine limits as found in the Rotax manual or its appendices take priority over
information provided in this manual for information purposes.
Battery voltage
Minimum voltage...................................................................................12 V
Low voltage caution range .........................................................12 –12.5 V
Normal range.............................................................................12.5 - 14 V
High voltage caution range.........................................................14 –15.5 V
Maximum voltage...............................................................................15.5 V

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NOTE
Some versions of the engine are equipped with two batteries. These are then
identical and have the characteristics listed above
Cylinder Head Temperature (CHT°)
Minimum CHT°....................................................................................60 °C
Low CHT° caution range..............................................................60 - 75 °C
Normal range............................................................................75 - 110 °C
High CHT° caution range.........................................................110 - 115 °C
Maximum CHT°.................................................................................115 °C
Engine Oil Temperature
Minimum oil temperature.....................................................................60 °C
Minimum oil temperature caution range......................................60 –90 °C
Normal range............................................................................90 - 115 °C
Caution range...........................................................................115 - 125 °C
Maximum...........................................................................................125 °C
Engine Oil Pressure
Low oil pressure warning light..............................................................1 bar
Low oil pressure caution range ...................................................1 –1.8 bar
Normal range.............................................................................1.8 –5 bar
High oil pressure caution range......................................................5 –7 bar
Maximum oil pressure..........................................................................7 bar
Main Transmission Gearbox Oil Temperature
Normal range............................................................................60 - 110 °C
Caution range...........................................................................110 - 125 °C
Maximum...........................................................................................125 °C
Fuel Type
Regular fuel ................................... EN 228 Super (min RON) 98 or UL91
Occasional fuel..................................................................AVGAS 100 LL
N.B : Green fuelssuch as Ethanol are prohibited. AVGAS may be used. Caution, some fuels induce knock
in the cylinders and can cause piston destruction instantly.
ROTOR RPM
505
505-515
515-565
565-575
575
ENGINE RPM
1500
1500-5300
5300-5800
5800-5900
5900
VOLTS
12
12 - 12.5
12.5 - 14
14 - 15.5
15.5
CH T°
60
60 - 75
75 - 110
110 - 115
115
OIL T°
60
60 - 90
90 - 115
115 - 125
125
OIL PRESS.
1
1 - 1.8
1.8 - 5
5 - 7
7
MTG T°
0
20 - 40
40 - 110
110 - 125
125

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2.7 WEIGHT LIMITS
Maximum take-off weight at sea level .......................................450 kg (UL)
Standard empty weight .....................................................................285 kg
Minimum total weight of solo pilot ......................................................50 kg
Maximum total weight of solo pilot (imperatively left hand seat)........125 kg
Maximum total weight in cockpit for safe operation...........................200 kg
Maximum weight in storage compartment...........................................10 kg
NOTE
*The maximum take-off weight (MTOW) is limited by the national regulations
related to ultralight helicopters and by the engine output. See Type Approval
Data Sheet.
NOTE
Minimum crew is one pilot ALWAYS on the left seat ! Harness in the RH seat
must be fastened and tight if seat is not occupied.
In most countries, the law prohibits flights with dual controls except in training
flights accompanied by a qualified instructor. Without an instructor, it is
necessary to remove the cyclic stick on the passenger side.
CAUTION
The flight controls must never be restricted by passenger or objects.
Passengers must be briefed before the flight.
WARNING !
Always keep 1 inHg (MAP) power margin in relation to atmospheric pressure !
CAUTION
The take-off weight is the total weight of the helicopter including empty weight,
optional / additional equipment, occupants, fuel and luggage at take-off. The
maximum value specified above must never be exceeded.

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2.8 CENTER OF GRAVITY (C.G.) LIMITS
CAUTION
The balance envelope is conditioned by the correct adjustment of the flight
controls, which allow for full travel. The original settings must not be modified.
Longitudinal balance is limited between the extreme aft balance and the extreme
forward balance, corresponding to the limits tested in flight.
Between the forward and aft balance limits, all variations are authorised insofar as the
maximum takeoff weight is not exceeded.
Datum point............................................................................... Rotor mast
Extreme forward balance authorised (from the mast) ....................+136mm
Extreme aft balance authorised (from the mast) .............................-136mm
WARNING !
SOLO PILOT ALWAYS ON THE LEFT SEAT !
SOLO PILOT ON THE RIGHT SEAT IS PROHIBITED !
2.9 LOAD FACTOR LIMITS
Limit of safe operation positive load factor..........................................+2.5g
Limit of negative load factor .................. Negative load factor prohibited !
WARNING !
+2.5g can not be exceeded. Beyond that limit, dynamic stall can occur.
WARNING !
As with all 2-blade helicopters, negative load factors are strictly prohibited !!!

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2.10 AUTHORISED OPERATION
Only daytime VFR flight is approved !
Night time VFR or IFR flight is prohibited !
Low-G manoeuvre is prohibited !
WARNING !
Any manoeuver resulting in a low-G condition can result in a loss of control.
Always maintain adequate load on the rotor and avoid aggressive forward
control input performed from level flight or following a pull-up.
Aerobatic flight is prohibited !
NOTE
Manœuvres involving bank angles of more than 60° are considered to be
aerobatic flight.
Flight in icing conditions is prohibited !
NOTE
Icing may occur even at temperatures above freezing.
Operation in severe turbulence is prohibited !
2.11 NOISE LEVEL
REFERENCE MEASUREMENT
NOISE LEVEL (EPNDB)
Takeoff
71
Approach
73
Overflight
69