DFE Ultralights Ascender III-C 2001 Owner's manual

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D
DF FE E U Ul lt tr ra al li ig gh ht ts s
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As sc ce en nd de er r I II II I- -C C
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Pi il lo ot t’ ’s s O Op pe er ra at ti in ng g H Ha an nd db bo oo ok k
Applicable to:
Serial Number: ARZ01
Registration: C-IZZZ
Version 1.27 – August 2004
Pilot’s Operating Handbook DFE Ultralights Ascender III-C

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Pilot’s Operating Handbook DFE Ultralights Ascender III-C
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FOREWORD
This handbook describes the features and systems of the DFE Ultralights Ascender III-C
ultralight airplane. Operational procedures and performance data are provided so that the aircraft
can be operated as safely as possible.
It is strongly recommended that the pilot be familiar with the aircraft and this handbook prior to
flight.
This handbook applies specifically to 2001 model DFE Ascender III-C, Serial Number ARZ01,
registered C-IZZZ equipped with a Rotax 503 DCDI engine.
All placards and operating limitations MUST be adhered to.
INTERPRETATION
The words “WARNING”, “CAUTION”, and “NOTE” are used throughout the handbook with
the following definitions:
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An operating procedure, practice or condition which may result in
injury or fatality if not carefully observed or followed.
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An operating procedure, practice or condition which,
if not strictly observed, may damage the aircraft or equipment.
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An operating procedure, practice or condition
which it is essential to emphasize.

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DFE Ascender III-C
General Arrangement Photos
Pilot’s Operating Handbook DFE Ultralights Ascender III-C

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Pilot’s Operating Handbook DFE Ultralights Ascender III-C
TABLE OF CONTENTS
SECTION I OPERATING LIMITATIONS
GENERAL
FLIGHT OPERATIONS
POWERPLANT LIMITATIONS
AIRSPEED LIMITATIONS
WEIGHT AND BALANCE LIMITS
FLIGHT LOAD FACTORS
MANEUVERS
REQUIRED PLACARDS
SECTION II EMERGENCY PROCEDURES
GENERAL
FIRE
ENGINE FIRE DURING START
ENGINE FIRE IN FLIGHT
ENGINE MALFUNCTION
ENGINE FAILURE ON TAKEOFF
ENGINE AIR RESTART
PARTIAL POWER LOSS/ROUGH RUNNING
LANDING EMERGENCIES
PRECAUTIONARY LANDING APPROACH
FORCED LANDING (COMPLETE POWER FAILURE)
DITCHING
UNUSUAL FLIGHT CONDITIONS
SEVERE TURBULENCE
STALLS
SPINS
STRUCTURAL FAILURE OR MID-AIR COLLISION
SECTION III NORMAL OPERATING PROCEDURES
GENERAL
PREFLIGHT BRIEFING
LIST OF WINGNUTS AND SAFETY RINGS
PREFLIGHT INSPECTION
BEFORE STARTING
STARTING
TAXI
BEFORE TAKEOFF
TAKEOFF-NORMAL

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Pilot’s Operating Handbook DFE Ultralights Ascender III-C
TAKEOFF-OBSTACLE
TAKEOFF-SOFT FIELD
CLIMB
CRUISE
DESCENT
LANDING-NORMAL
LANDING-OBSTACLE
SHUTDOWN
SECTION IV FLIGHT PERFORMANCE
GENERAL
AIRSPEED CORRECTION
STALL SPEEDS
TAKEOFF PERFORMANCE
CLIMB PERFORMANCE
CRUISE PERFORMANCE
LANDING PERFORMANCE
SECTION V WEIGHT AND BALANCE
GENERAL
FLIGHT ENVELOPE
LOADING PROCEDURES
SAMPLE LOADING PROBLEM
LOADING GRAPH
SECTION VI AIRCRAFT & SYSTEMS DESCRIPTION
GENERAL
AIRCRAFT FILE
AIRFRAME STRUCTURE
MODIFICATIONS
ENGINE
FLIGHT CONTROLS
LANDING GEAR
ELECTRICAL SYSTEM
FUEL SYSTEM
HEATING AND VENTILATION
FLIGHT INSTRUMENTS
AVIONICS
CABIN FEATURES

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Pilot’s Operating Handbook DFE Ultralights Ascender III-C
SECTION VII SERVICING
GENERAL
SERVICING SPECIFICATIONS
FUEL
OIL
TIRES
LUBRICATION
SERVICING PROCEDURES
GROUND HANDLING
JACKING
MOORING
INSPECTION & SERVICING ACCESS
FUEL SYSTEM
BATTERY
BRAKES
TIRES
ENGINE LUBRICATION
GEARBOX LUBRICATION
ENGINE AIR FILTER
CLEANING
EXTERIOR SURFACE
WINDSHIELD
ENGINE
SEATS
STORAGE
This Handbook will be revised as necessary based on service information published by DFE
Ultralights and by operational test data collected. Changes to the Handbook will be published as
a new version number. The Handbook should not be used for operational purposes unless it is the
current version.

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Pilot’s Operating Handbook DFE Ultralights Ascender III-C
SECTION I
OPERATING LIMITATIONS
GENERAL
This section lists all powerplant and airframe operating limitations. These limitations are also
indicated in the aircraft in the form of instrument markings.
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All operating limitations must be strictly adhered to for reasons of safety.
FLIGHT OPERATIONS
All Canadian Ascender models are operated in the Canadian Basic Ultralight Category.
Day VFR flight only is approved in accordance with:
1) CAR 602.29 Hang Glider and Ultra-light Aeroplane Operation;
2) The Transport Canada Ultra-light Transition Strategy
Future regulatory requirements will be contained in:
1) CAR 603.78 Basic Ultra-light Aeroplane Operations,
2) CAR 605.111 Placard Requirements – Basic Ultra-light Aeroplane,
3) CAR 605.115 Basic Ultra-light Aeroplane Equipment Requirements and
4) CAR 605.117 Restraint System Requirements.
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CAR 602.29(1)(f)(ii) [now in effect] and CAR 603.78(6)(b)
require that all persons flying a Basic Ultralight
Aircraft wear a protective helmet
Eye protection is required while flying this aircraft.

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Pilot’s Operating Handbook DFE Ultralights Ascender III-C
Flight in Instrument Meteorological Conditions (IMC) is prohibited.
Flight at night is prohibited.
Flight into known icing conditions is prohibited.
POWERPLANT LIMITATIONS
Engine Type Rotax 503 DCDI two-stroke aircraft engine equipped with dual
carburetors and 2.58:1 “B” type gearbox, 50 hp (37 kW) at 6500 rpm
Fuel Minimum AKI 87 Mogas or 100LL aviation fuel
Tachometer
Maximum (red line) (rpm) 6800 for 5 minutes
Maximum continuous (rpm) 6500
Cylinder Head Temperature
Normal Range (green arc) 350 – 430
0F
Maximum (red line) 480
0F
Maximum difference allowed between cylinders 34 F0
Exhaust Gas Temperatures
Normal Range (green arc) (0F) 860 – 1000
0F
Maximum (red line) (0F) 1200
0F
Maximum difference allowed between cylinders (0F) 43 F0
Fuel Pressure
Maximum 6psi
Minimum 3psi
Engine start and operating outside air temperature
Maximum +50
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Minimum -25
0C
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Never fly aircraft equipped with this engine at locations,
airspeeds, altitudes, or other circumstances from which a successful

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Pilot’s Operating Handbook DFE Ultralights Ascender III-C
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landing cannot be made after sudden engine stoppage.
AIRSPEED LIMITATIONS
VNE - Never Exceed Speed (red line on airspeed indicator) 55 mph
As this aircraft is capable of exceeding VNE in level flight, a serviceable airspeed indicator is
required for all flights.
Flying without a serviceable airspeed indicator is prohibited.
WEIGHT AND BALANCE LIMITS
Aircraft Weight and Center of Gravity Range
Maximum weight: 750 lbs
Centre of Gravity Limits: Maximum Rearward 98.0 inches
Maximum Forward 95.6 inches
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All measurements are aft of the datum line, which is the
canard boom tube leading edge. See SECTION V WEIGHT
AND BALANCE for the flight envelope and loading instructions.
MANEUVERS
Aerobatics prohibited
REQUIRED PLACARDS
CAR 602.29 – “This aeroplane is operating without a certificate of airworthiness / Cet avion est
utilise sans certificat de navigabilitie”
CAR 605.111 (not yet in effect) “Notice: This basic ultralight aeroplane is not required to
conform to government safety standards for design, construction and maintenance. Fly in this
aircraft at your own risk.”
And in the area designated for the carriage of another person: “Passenger Warning: unless
authorized, the carriage of passengers is prohibited”

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Pilot’s Operating Handbook DFE Ultralights Ascender III-C
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SECTION II
EMERGENCY PROCEDURES
GENERAL
This section covers the recommended procedures to follow during emergency and adverse flight
conditions. As it is not possible to define every type of emergency that may occur, it is the pilot's
responsibility to use sound judgment based on personal experience, training and knowledge of
the aircraft, to determine the best course of action.
It is considered mandatory that the pilot be familiar with this entire handbook, in particularthis
section prior to flight.
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All airspeeds in this handbook are indicated airspeeds (IAS).
FIRE
ENGINE FIRE DURING START
If the fire is believed to be confined to the intake or exhaust system (result of flooding engine):
1) Continue cranking engine with starter
2) Throttle - FULL OPEN
3) Inspect aircraft thoroughly for damage and cause prior to restart
If fire persists or is not limited to intake or exhaust system:
1) Throttle - IDLE
2) Ignition Switches - OFF
3). Exit Aircraft
4) Direct fire extinguisher at engine

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Pilot’s Operating Handbook DFE Ultralights Ascender III-C
ENGINE FIRE IN FLIGHT
1) Ignition Switches - OFF
2) Land immediately using Forced Landing Procedures
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Do not attempt to restart engine.
ENGINE MALFUNCTIONS
ENGINE FAILURE ON TAKE-OFF
If sufficient runway remains:
1) Throttle – CLOSED
2) Land using remaining runway.
If sufficient altitude permits:
1) Ignition Switches - BOTH ON
If a restart is not achieved:
1) Select most favorable landing area straight ahead
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Maintain flying speed at all times and do not attempt to turn back toward
the runway unless sufficient altitude to do so has been achieved.
PARTIAL POWER LOSS/ROUGH RUNNING
1) Land as soon as practical using "Precautionary Landing Approach" procedures
Carburetor icing is indicated if a gradual RPM loss is noticed. The Rotax 503 is generally
resistant to carburetor ice so there is no in-flight rectification for this problem.

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Pilot’s Operating Handbook DFE Ultralights Ascender III-C
LANDING EMERGENCIES
PRECAUTIONARY LANDING APPROACH
A precautionary landing approach should be used whenever power is still available but a
complete power failure is considered imminent. Maintain a higher and closer pattern than normal
to remain within gliding distance of the intended touchdown point. Use the normal landing
procedures. In addition:
1) Airspeed - 40 MPH recommended depending on surface wind (35 MPH minimum)
2) Throttle - CLOSED when within gliding distance of runway
FORCED LANDING (Complete Power Failure)
If the engine cannot be restarted in flight, maintain the aircraft at the recommended glide speed.
Remain within gliding distance of the intended point of landing. Maintain a higher and closer
pattern than normal making allowance for wind.
1) Airspeed - Maintain 40 - 45 MPH
2) Radio - MAYDAY 121.5 MHz or current ATC frequency
3) Attempt to position the aircraft approximately 1000 feet above ground level (AGL) over the
intended point of landing or 500 feet when downwind and abeam the intended point of
landing.
4) On Final Approach - Airspeed - 40 MPH (35 MPH minimum)
5) Touchdown with minimum airspeed if landing on rough terrain.
DITCHING
Should it become necessary to make a forced landing into water, follow the "Forced Landing
Procedures" in addition to the following:
1) Land into wind if high winds are evident or parallel to swells with calm winds
2) Contact the water with nose high attitude
3) DO NOT STALL prior to touchdown
4) After coming to complete stop - EXIT AIRCRAFT
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The aircraft cannot be depended on to provide
floatation after contacting the water.

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Pilot’s Operating Handbook DFE Ultralights Ascender III-C
UNUSUAL FLIGHT CONDITIONS
SEVERE TURBULENCE
To prevent overstressing the aircraft do not exceed 55 MPH in rough air. To minimize personal
discomfort, decrease the IAS to 45 MPH. Maintain a level flight attitude rather than flying by
reference to the altimeter and airspeed indicator as the pitot-static instruments may become very
erratic.
STALLS
The Ascender III-C stall characteristics are conventional with the canard elevator normally
stalling first while flying dual, preventing main wing stall in most conditions of flight. There is
sufficient aerodynamic buffeting from the canard elevator preceding the stall to provide the pilot
with an adequate warning. When solo the main wing will stall first resulting in a pitch-down
moment.
Tip rudder roll control response in a fully stalled condition is maintained. Large tip rudder
deflections will aggravate a near stalled condition and their use is not recommended while
stalled.
To recover from a stall, proceed as follows:
1) Nose Attitude - LOWER with forward movement of control stick
2) Throttle - FULL OPEN simultaneously with control stick movement
SPINS
The Ascender is designed to be spin resistant.
STRUCTURAL FAILURE OR MID-AIR COLLISION
In the event of a structural failure or mid-air collision the BRS parachute recovery system should
be deployed. Proceed as follows:
1) Throttle – CLOSED
2) Ignition switches – OFF
3) Propeller – STOPPED (if altitude permits)
4) BRS handle – PULL
5) Parachute – CHECK OPEN
6) Prepare for vertical landing

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Pilot’s Operating Handbook DFE Ultralights Ascender III-C
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SECTION III
NORMAL OPERATING PROCEDURES
GENERAL
This section covers all recommended normal operating procedures using a checklist format
whenever possible with additional information if further explanation is required.
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All recommended airspeeds in this Handbook are indicated airspeeds (IAS).
PREFLIGHT BRIEFING
Canadian Aviation Regulation 602.89 Passenger Briefings requires that any passenger be briefed
by the pilot-in-command on the following items before take-off prior to a flight, where
applicable:
1. The location and means of operation of emergency and normal exits
2. The location and means of operation of safety belts, shoulder harnesses and restraint
devices
3. The stowage of carry-on baggage
4. Prohibition against smoking
5. First aid kits and survival equipment
6. Any ELT that is required to be carried on board pursuant to CAR 605.38
Additionally the following Ascender type-specific information should be briefed:
Pusher propeller safety – including clearances and loose objects:
1. Long hair should be properly secured to prevent contact with the propeller. A
hairnet is recommended for long hair.
2. Scarves must be secured.
3. Pocket contents must be secured.
LIST OF WINGNUTS AND SAFETY RINGS
This is a complete list of wingnuts and safety rings installed on the aircraft. It is also
incorporated in the preflight inspection.
There are 29 wingnuts with safety rings

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Pilot’s Operating Handbook DFE Ultralights Ascender III-C
1. Noseboom rigging bolt left wingnut
2. Noseboom rigging bolt right wingnut
3. Front strut, top left wingnut
4. Front strut, top right wingnut
5. Main strut bottom left wingnut
6. Main strut bottom right wingnut
7. Canard pushrod/control stick wingnut
8. Engine mount forward brace left wingnut
9. Engine mount forward brace right wingnut
10. Engine mount front left wingnut
11. Engine mount front right wingnut
12. Engine mount rear left wingnut
13. Engine mount rear right wingnut
14. Fuel tank carrier wingnut
15. Rear carry through left wingnut
16. Rear carry through right wingnut
17. Tip rib left front wingnut
18. Tip rib left rear wingnut
19. Tip rib right front wingnut
20. Tip rib right rear wingnut
21. Side car – top of front strut wingnut
22. Side car - top of diagonal brace wingnut
23. Side car – bottom of diagonal brace wingnut
24. Side car – joiner plug front wingnut
25. Side car – joiner plug rear wingnut
26. Side car - copilot backrest inboard wingnut
27. Side car –bottom of rear brace wingnut
28. Side car – pilot seat backrest inboard wingnut
29. Side car – pilot seat backrest outboard wingnut
There are 30 clevis pins with safety rings:
1. Canard pushrod front end clevis pin
2. Canard eye bolt left clevis pin
3. Canard eye bolt right clevis pin
4. Noseboom attachment left clevis pin
5. Noseboom attachment right clevis pin
6. Control stick cross tube left clevis pin
7. Control stick cross tube right clevis pin
8. Winglet mounting left clevis pin
9. Winglet mounting right clevis pin
10. Winglet lateral brace left top clevis pin
11. Winglet lateral brace left bottom clevis pin
12. Winglet longitudinal brace left top clevis pin
13. Winglet longitudinal brace left bottom clevis pin

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Pilot’s Operating Handbook DFE Ultralights Ascender III-C
14. Winglet lateral brace right top clevis pin
15. Winglet lateral brace right bottom clevis pin
16. Winglet longitudinal brace right top clevis pin
17. Winglet longitudinal brace right bottom clevis pin
18. Control cable to winglet left clevis pin
19. Control cable to winglet right clevis pin
20. Upper pullstart keel clevis pin
21. Lower pullstart clevis block pin
22. Copilot’s throttle quadrant clevis pin
23. Pilot’s throttle quadrant clevis pin
24. Spar outboard attachment right front clevis pin
25. Spar outboard attachment right rear clevis pin
26. Spar outboard attachment left front clevis pin
27. Spar outboard attachment left rear clevis pin
28. Keel front section clevis pin
29. Inboard sweep wires to nose plate left clevis pin
30. Inboard sweep wires to nose plate right clevis pin
PREFLIGHT INSPECTION
1) Documents
a) Journey Logbook -CHECK for outstanding snags
b) Maintenance Schedule -CHECK for time until maintenance required
2) Cockpit area
a) Ignition Switches - OFF (Guards up)
b) Seats - CHECK condition, security
c) Seat pockets - SECURITY and contents
d) Rear carry through left wingnut - CHECK condition, security
e) Rear carry through right wingnut - CHECK condition, security
f) Side car – top of front strut wingnut - CHECK condition, security
g) Side car - top of diagonal brace wingnut- CHECK condition, security
h) Side car – bottom of diagonal brace wingnut - CHECK condition, security
i) Side car – joiner plug front wingnut - CHECK condition, security
j) Side car – joiner plug rear wingnut - CHECK condition, security
k) Side car - copilot backrest inboard wingnut - CHECK condition, security
l) Side car –bottom of rear brace wingnut - CHECK condition, security
m) Pilot seat backrest inboard wingnut - CHECK condition, security
n) Pilot seat backrest outboard wingnut - CHECK condition, security
o) Trim system - CHECK condition, trim disengaged
p) Flight Controls - CHECK freedom of movement
q) Control stick cross tube left clevis pin - CHECK condition, security
r) Control stick cross tube right clevis pin - CHECK condition, security
s) Canard pushrod/control stick wingnut - CHECK condition, security

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Pilot’s Operating Handbook DFE Ultralights Ascender III-C
t) Copilot’s throttle quadrant clevis pin - CHECK condition, security
u) Pilot’s throttle quadrant clevis pin - CHECK condition, security
v) Low oil warning power switch - ON
w) Seat Belts/Shoulder Harness - CHECK condition
x) Co-pilot’s Seat Belt/Shoulder Harness - SECURE if flying solo
y) Radio, GPS, Intercom – INSTALLED and operating
z) Ballast tube - CHECK contents and position
• forward for solo
• aft for dual
aa) Helmets – READY for use
bb)Loose objects - STOWED
cc) Keel - CHECK condition, security
dd)Keel front section clevis pin - CHECK condition, security
ee) Front strut, top left wingnut - CHECK condition, security
ff) Front strut, top right wingnut - CHECK condition, security
gg)Main strut bottom left wingnut - CHECK condition, security
hh)Main strut bottom right wingnut - CHECK condition, security
ii) Inboard sweep wires to nose plate left clevis pin - CHECK condition, security
jj) Inboard sweep wires to nose plate right clevis pin - CHECK condition, security
kk)Nose Plate Pip Pin - CHECK condition, security
3) Right Wing
a) Cables - CHECK secure
b) King Post - CHECK condition, security
c) Zippers – OPEN
d) Compression struts - CHECK condition, security
e) Spar outboard attachment right front clevis pin - CHECK condition, security
f) Spar outboard attachment right rear clevis pin - CHECK condition, security
g) Zippers – CLOSE
h) Top and bottom rigging cables - CHECK
i) Wing ribs - CHECK condition, Velcro closures
j) Winglet mounting right clevis pin - CHECK condition, security
k) Winglet lateral brace right top clevis pin - CHECK condition, security
l) Winglet lateral brace right bottom clevis pin - CHECK condition, security
m) Winglet longitudinal brace right top clevis pin - CHECK condition, security
n) Winglet longitudinal brace right bottom clevis pin - CHECK condition, security
o) Control cable to winglet right clevis pin - CHECK condition, security
p) Tip Rudder - CHECK condition, freedom of
movement, security of control cable
q) Wing Tip - CHECK condition
r) Tip rib right front wingnut - CHECK condition, security
s) Tip rib right rear wingnut - CHECK condition, security
t) Front and Rear Wing Spars - INSPECT for straightness, dents
and other damage
u) Dacron wing covering - CHECK for condition, security

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Pilot’s Operating Handbook DFE Ultralights Ascender III-C
and damage
v) Tie-Down - REMOVE
4) Right Main Gear
a) Chocks - REMOVE
b) Tire - CHECK condition, inflation.
c) Spring rod - CHECK condition and damage
d) Bungee - CHECK condition and security
5) Engine
a) Engine bungs & covers - REMOVE
b) Engine case - CHECK condition, security
c) Engine mount forward brace right wingnut - CHECK condition, security
d) Engine mount front right wingnut - CHECK condition, security
e) Engine mount rear right wingnut - CHECK condition, security
f) “B” Gearbox - CHECK condition, security of safety wiring
g) Engine mount & plate - CHECK condition, security
h) Carburetors - CHECK rubber mounting sockets for cracks
i) Air filter & silencer - CHECK condition, security
j) Throttle, choke, oil pump - CHECK condition, security
k) Oil supply lines - CHECK condition, security
l) Fuel pump - CHECK condition, security
m) Fuel pump impulse hose - CHECK condition, security
n) Fuel lines - CHECK condition, security
o) Ignition boxes - CHECK condition, security
p) Ignition system wires - CHECK condition, security
q) Engine - ROTATE by hand – listen for unusual noises
r) Propeller and bolts - CHECK condition, security
s) Propeller shaft bearing - CHECK clearance by rocking propeller
t) Exhaust system - CHECK condition, security, springs, safety wiring
u) Fuel tanks - CHECK quantity, tank interiors and caps secure
v) Fuel tank carrier wingnut - CHECK condition, security
w) Oil tank - CHECK oil quantity, tank condition, security
x) Cooling fan - CHECK condition, security and rotation
y) Primer - CHECK condition, security
z) Starter - CHECK rope condition, security
aa) Upper pullstart keel clevis pin - CHECK condition, security
bb)Lower pullstart clevis block pin - CHECK condition, security
cc) Engine mount forward brace left wingnut - CHECK condition, security
dd)Engine mount rear left wingnut - CHECK condition, security
ee) Engine mount front left wingnut - CHECK condition, security
6) Left Main Gear

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Pilot’s Operating Handbook DFE Ultralights Ascender III-C
a) Chocks - REMOVE
b) Tires - CHECK condition, inflation.
c) Spring rods - CHECK condition and damage
d) Bungee - CHECK condition and security
e) BRS system – CHECK condition and security
7) Left Wing
a) Cables - CHECK secure
b) Zippers – OPEN
c) Compression struts - CHECK condition, security
d) Spar outboard attachment left front clevis pin - CHECK condition, security
e) Spar outboard attachment left rear clevis pin - CHECK condition, security
f) Zippers – CLOSE
g) Top and bottom rigging cables - CHECK
h) Wing ribs - CHECK condition, Velcro closures
i) Winglet mounting left clevis pin - CHECK for condition, security
j) Winglet lateral brace left top clevis pin - CHECK condition, security
k) Winglet lateral brace left bottom clevis pin - CHECK condition, security
l) Winglet longitudinal brace left top clevis pin - CHECK condition, security
m) Winglet longitudinal brace left bottom clevis pin- CHECK condition, security
n) Control cable to winglet left clevis pin clevis pin- CHECK condition, security
o) Tip Rudder - CHECK condition, freedom of
movement, security of control cable
p) Wing Tip - CHECK condition
q) Tip rib left front wingnut - CHECK for condition, security
r) Tip rib left rear wingnut - CHECK for condition, security
s) Front and Rear Wing Spars - INSPECT for straightness, dents
and other damage
t) Dacron wing covering - CHECK for condition, security
and damage
u) Tie-Down - REMOVE
8) Nose booms and canard elevator
a) Nose boom tubes - CHECK condition, security
b) Noseboom rigging bolt left wingnut - CHECK condition, security
c) Noseboom rigging bolt right wingnut - CHECK condition, security
d) Canard eye bolt left clevis pin - CHECK condition, security
e) Canard eye bolt right clevis pin - CHECK condition, security
f) Noseboom attachment left clevis pin - CHECK condition, security
g) Noseboom attachment right clevis pin - CHECK condition, security
h) Pitot Tube - CHECK unobstructed and cover removed
i) Canard pushrod front end clevis pin - CHECK condition, security
j) Canard Elevator - CHECK condition, security and freedom of movement
k) Canard Elevator Push Rod – CHECK freedom of movement and security

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Pilot’s Operating Handbook DFE Ultralights Ascender III-C
9) Nose Landing Gear
a) Nose gear fork - CHECK condition, security
b) Nose gear wheel - CHECK condition, security
c) Tire - CHECK condition, inflation
d) Brake system - CHECK condition, security, operation, wear
BEFORE STARTING
1) Loose objects - SECURED
STARTING
1) Low oil warning press-to-test switch - TEST
2) Ignition Switches – BOTH ON
3) Throttle - CLOSED
4) Prime - AS REQUIRED
5) Choke – ON
6) Propeller - CLEAR, front and rear
7)Starter –PULL
8) Choke - OFF
9) Throttle - 2000 RPM – 2 minutes
10)Throttle – 2500 rpm until operating temps reached
11)Harness – FASTENED
12)Radio, Intercom, GPS - ON
13)Eye protection – ON
14)Helmets – ON, chinstraps fastened
15)Gloves – ON
The use of the engine fuel primer will vary with each engine and temperature condition. If the
engine is warm, little or no prime is required. During cold weather conditions, 4 - 6 priming
strokes may be required.
The Rotax 503 engine starting system requires that the throttle be closed for the engine to started.
To clear an engine that has been flooded due to excessive priming, proceed as follows:
1) Throttle - FULL OPEN
2) Choke - OFF
3) Ignition Switches - OFF
4) Starter - ENGAGE for several propeller revolutions
5) Repeat normal starting procedures using no prime