Table of Contents
Advertisement
Quick Links
Vodolská 4
250 70 Odolena Voda
Czech Republic
Tel.:
e-mail:info@woodcomp.cz
http://www.woodcomp.cz
U
S
E
U
S
E
U
S
E
U
M
U
M
U
M
A
I
R
C
R
A
A
I
R
C
R
A
A
I
R
C
R
A
T
y
p
e
:
T
y
p
e
:
T
y
p
e
:
M
o
d
e
l
:
M
o
d
e
l
:
M
o
d
e
l
:
S
/
N
:
.
.
.
.
.
.
.
S
/
N
:
.
.
.
.
.
.
.
S
/
N
:
.
.
.
.
.
.
.
+420 283 971 309
R
M
A
N
U
A
R
M
A
N
U
A
R
M
A
N
U
A
–
1
0
E
N
–
1
0
E
N
–
1
0
E
N
F
T
P
R
O
P
E
F
T
P
R
O
P
E
F
T
P
R
O
P
E
K
W
-
2
0
K
W
-
2
0
K
W
-
2
0
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
L
L
L
L
L
E
R
L
L
E
R
L
L
E
R
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
Advertisement
Table of Contents
Related Manuals for WOODCOMP KW-20
Summary of Contents for WOODCOMP KW-20
- Page 1 Vodolská 4 250 70 Odolena Voda Czech Republic Tel.: +420 283 971 309 e-mail:info@woodcomp.cz http://www.woodcomp.cz – – –...
-
Page 2: Table Of Contents
10.1. Product Label ........................ 10 10.2. Propeller Designation System ..................11 Basic Performance Data ............... 12 Connection of KW-20 Propeller to Engine ........13 Propeller Unit Adjustment ............14 13.1. Adjustment before First Flight ..................14 Operating Instruction ..............17 14.1. - Page 3 Troubleshooting ................29 Warranty Conditions ..............30 21.1. Warranty Period ......................30 21.2. Warranty Conditions ..................... 30 21.3. Responsibility ....................... 30 21.4. Honoring the Claim ....................... 30 WARRANTY CERTIFICATE ............... 32 KW-20 PROPELLER................. 33 Page 3 Date of issue: 06.10.2023 Rev. 0...
-
Page 4: List Of Valid
1. List of Valid Pages Page Issue Date of issue Page Issue Date of issue 06.10.2023 06.10.2023 06.10.2023 06.10.2023 06.10.2023 06.10.2023 06.10.2023 06.10.2023 06.10.2023 06.10.2023 06.10.2023 06.10.2023 06.10.2023 06.10.2023 06.10.2023 06.10.2023 06.10.2023 06.10.2023 06.10.2023 06.10.2023 06.10.2023 06.10.2023 06.10.2023 06.10.2023 06.10.2023 06.10.2023 06.10.2023 06.10.2023... -
Page 5: List Of Revised
2. List of Revised Pages Changes or revisions to this manual may only be made by the manufacturer. Any change should be recorded in the table below. New or revised text on a revised page will be marked by a black vertical line on the right side of the page. -
Page 6: Introduction
If you do not understand the contents or if in doubt, always contact propeller manufacturer – Woodcomp Propellers s.r.o. We wish you many a pleasant flight with Aleš KŘEMEN – WOODCOMP propellers. 4. Manufacturer Woodcomp Propellers s.r.o. -
Page 7: Serial Number
Product plate fixed on propeller blade No. 1 7. General Information KW-20 propellers are reliable and field tested in long lasting operation, however problems might occur as with any product. Although it is impossible to eliminate all the risks involved just by reading the manual, they can be minimized by applying the information presented and using the propeller properly. -
Page 8: Propeller Properties
Constant speed propeller protects the propulsion unit from damage caused by mishandling during operation. KW-20 family propellers meet the requirements of standard airplane categories thanks to their control stability and quick reaction. Page 8 Date of issue: 06.10.2023... -
Page 9: Technical Description
10. Technical Description KW-20 family of propellers are designed for aircraft with piston engines coupled with reducing gearbox. Vrtule KW-20 propellers are constant speed propellers of hydro-mechanical design. In rest position (without oil pressure), propeller blades are set to minimum angle (pitch), secured by a mechanical stop. -
Page 10: Product Label
The hub is marked at the outer surface with self-adhesive label with propeller designation (see chapter 10.2) and serial number. example: KW-20-A-H-2-0-0-F/ R-171-031 S/N:39377 Blades At the rear of each blade root there is self-adhesive label with the following data... -
Page 11: Propeller Designation System
10.2. Propeller Designation System / BLADES KW – xx – ( ) – ( ) – ( ) – ( ) – ( ) – ( ) / ( ) – ( ) – ( ) 8 / 9 10 11 Propeller type No. -
Page 12: Basic Performance Data
KW-20 has been tested in operation of aircraft equipped with ROTAX 912/914 engines ROTAX 912 and ROTAX 914 engines must be equipped for KW-20 propellers: ROTAX engine version 3 is equipment for hydraulic constant speed use from factory. -
Page 13: Connection Of Kw-20 Propeller To Engine
12. Connection of KW-20 Propeller to Engine Dimensions correspond to ROTAX 912 engine flange–part number 837 282. Dia. 13 mm holes on dia. 101.6mm circles are used to attach KW-20 propeller. Page 13 Date of issue: 06.10.2023 Rev. 0... -
Page 14: Propeller Unit Adjustment
In this case, simply fit the unit, bleed the air, and conduct pre-flight tests followed by test flight. Propeller unit must be set correctly to work properly and to be “fail safe”. KW-20 propeller units, i.e. the propeller with the governor, are very reliable; however,... - Page 15 13.1.1. Propeller Governor Adjustment Governor maximum speed is the only setting to be made. Minimum governed speed is determined by governor design, and usually these are 50-60% of maximum speed. In case of failure of pilot-governor control link, the governor will set takeoff regime (minimum pitch) automatically.
- Page 16 reach about 20rpm less than the governor setting. In planes climbing at higher speed (ca 110 - 120km/h), this engine should reach about 120 - 150rpm less. If you need lower rpm, tighten propeller down pitch stop nut. Loosen it to obtain higher setting.
-
Page 17: Operating Instruction
14. Operating Instruction 14.1. Mounting propeller on engine 1. Put a vessel beneath front part of engine to contain the oil which may escape from propeller reducer shaft or from propeller servo-system. 2. Check flange contact surfaces of reducer shaft and propeller and/or clean them to make them dry, clean and rust free. -
Page 18: Taxiing
5. Bleed the control system If engine test is carried out after installation of new propeller, after oil change, or after a long period when the propeller was out of operation, it is necessary to bleed propeller control system. To carry out bleeding, set full throttle and set speed selector to maximum propeller speed (same position as when warming up engine). -
Page 19: Taking Off
14.4. Taking Off Set full throttle and keep the speed selector in the takeoff position. As the plane gathers speed, during takeoff run and initial climb, propulsion unit rpm rise automatically till they reach maximum value set by the governor. Then the governor intervenes, keeping rpm constant. -
Page 20: Aircraft Manoeuvres And Turbulence
Before stopping the engine, set speed selector to takeoff position and keep it in this position when not airborne, too. 14.10. Emergence Procedures KW-20 propellers are reliable, but as the possibility of failure can never be completely eliminated, all pilots must know correct procedures allowing safe completion of flight in case of a failure. - Page 21 If this failure occurs before or during takeoff or initial climb, it will go unnoticed and takeoff will complete as usual. The pilot will notice this failure as the aircraft gains speed and the engine starts over-speeding. It is necessary to reduce flight speed to aircraft´s optimum speed of climb. At lower speeds, engine’s entire performance envelope can be used.
-
Page 22: Transport, Handling, Storage
15. Transport, Handling, Storage 15.1. Propeller Delivery Propeller is delivered complete, with cabling, controls, signaling, electric power brushes, propeller attachment hardware, and necessary documentation. 15.2. Handling Propeller must be handled very carefully, to prevent damage, including e.g. damage by impact. When transporting disassembled propeller, blades must be protected by cloth pockets. -
Page 23: Responsibility For Transport
15.5. Responsibility for Transport When standard packing recommended by the manufacturer is used to transport the propeller, the manufacturer bears responsibility for proper packing at manufacturing plant, up to acceptance of the package by the transport company, which takes over the responsibility afterwards. -
Page 24: Inspections
16. Inspections Mandatory inspections must be performed according to the following table: Chap. Operating hours Type of inspection Performed by Pilot or designated 16.1 Pre-flight inspection mechanic/technician After the first 25 operating Pilot or designated 16.2 25hrs hours from each new mechanic/technician installation to the engine Pilot or designated... -
Page 25: After First 25 Operation Hours Or After Each New Installation
16.2. After first 25 operation hours or after each new installation Check tightening torque of flange nuts (22Nm). Use torque wrench with valid calibration. 16.3. After 100 operating hours After 100 operating hours: Perform all tasks described in Sect. 16.1.and 16.2.; Remove propeller spinner and perform visual check of all components. -
Page 26: Special Inspections
18. Special Inspections Special inspections are necessary when: When major damage to blade by impact of foreign object (stone, bird, hail, etc.) is detected In case of careless or prohibited handling; In case of overrevving the propeller by more than 200rpm; In case of lighting strike;... -
Page 27: Repairs
19. Repairs This chapter describes repairs of small damages which may be performed by the user. Description of damage and method of repair must be recorded in Propeller Log Book. WARNING! More serious damage can only be repaired by the manufacturer or authorized service organization. -
Page 28: Repairs Of Propeller Head And Metal Parts
Stainless steel leading edge: Maximum permitted depth of damage to stainless leading edge is 1mm, damaged locations must be farther than 80mm away from each other and must not be longer than 5mm. No puncture or crack on is permitted, nowhere on the length of leading edge. -
Page 29: Troubleshooting
20. Troubleshooting If you cannot solve a problem according to the following instructions, contact the manufacturer or authorised maintenance organisation. Problem Possible Cause Solution Propeller damaged Check propeller and its accessories visually. Repair Propeller damage or contact manufacturer vibrates Wrong attachment Check propeller-to-engine attachment and of propeller securing. -
Page 30: Warranty Conditions
21. Warranty Conditions 21.1. Warranty Period The manufacturer accepts responsibility for faults of new and unused product for the period of 24 consecutive months from sale to original purchaser recorded in the Warranty Certificate, or for 100 operating hours, whichever occurs sooner. After 25 operating hours, propeller must be presented to the manufacturer or to an authorized service centre for inspection, otherwise the warranty becomes void. - Page 31 This page intentionally blank Page 31 Date of issue: 06.10.2023 Rev. 0...
-
Page 32: Warranty Certificate
WARRANTY CERTIFICATE Manufacturer: Woodcomp Propellers s.r.o. Odolena Voda – Dolínek, Vodolská 4, Praha-východ, ZIP 250 70 Czech Republic Propeller type: KW-20 Model: Type Certificate: ULL-08/2012 Serial Number: ……………………………………. Date of Sale: …………………………………… Supplier’s Stamp and Signature: Product warranty is subject to warranty conditions listed in Chapter 21 of this User Manual. -
Page 33: Propeller
KW-20 PROPELLER Page 33 Date of issue: 06.10.2023 Rev. 0... - Page 34 Propeller records: KW-20 Hours in Total number Recorded Aircraft Date service of hours in operation service Page 34 Date of issue: 06.10.2023 Rev. 0...
Need help?
Do you have a question about the KW-20 and is the answer not in the manual?
Questions and answers