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DUC Hélices FLASH-R Instruction Manual

3-blade propeller
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Instruction manual
3-blade propeller
Certified FLASH-R
Aérodrome de Villefranche-Tarare (LFHV)
ISO 9001:2015
289 Avenue Odette & Edouard DURAND
TC EASA: EASA P.038
69620 FRONTENAS - FRANCE
Part 21G EASA: FR.21G.0273
Phone: + 33 (0)4 74 72 12 69
E-mail: contact@duc-helices.com
DH_FSH-R_BE_04_A
Made in France
06/05/2019

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Summary of Contents for DUC Hélices FLASH-R

  • Page 1 Instruction manual 3-blade propeller Certified FLASH-R Aérodrome de Villefranche-Tarare (LFHV) ISO 9001:2015 289 Avenue Odette & Edouard DURAND TC EASA: EASA P.038 69620 FRONTENAS - FRANCE Part 21G EASA: FR.21G.0273 Phone: + 33 (0)4 74 72 12 69 E-mail: contact@duc-helices.com...
  • Page 2 Revision update Date Index Object of modification 09/05/2019 Creation Every amendment in this document made for the latest revision will appear in dark red. Identification form Date Delivery note n° Engine/Gearbox Owner ratio recommended Aircraft pitch blade angle Notes: ........................................................................

  • Page 3: Table Of Contents

    Certified FLASH-R ISO 9001: 2015 TCDS EASA: EASA P.038 Part 21G EASA: FR.21G.0273 Summary Presentation of the Certified FLASH-R propeller ....................... 4 1.1. Description ................................ 4 1.2. Characteristics ..............................4 ® 1.3. Shielding leading edge in Inconel ........................5 1.4.

  • Page 4: Presentation Of The Certified Flash-R Propeller

     A high user comforts The blades and the hub of the FLASH-R propeller are manufactured according the DUC Hélices company technologies, from unidirectional layers of carbon fibers prepreg epoxy resin. The blade composite structure is defined to obtain the maximum strength in torsion and bending. Therefore "constant speed"...

  • Page 5: Shielding Leading Edge In Inconel

    1.3. Shielding leading edge in Inconel ® The leading edge of the Certified FLASH-R blades is equipped with a metallic shielding in Inconel . This material is a superalloy containing mainly nickel, with a very high hardness of surface. Inconel shielding 1.4.

  • Page 6: Applications

    Certified FLASH-R 2. Applications DUC propellers are given for a flight potential under normal operating conditions. To maintain this potential, DUC Propellers has determined a TBO (time between revisions) for a propeller based on the engine it equips. See the section 7.1 Airworthiness Limitations for Information Benefit.

  • Page 7: Components Of The Certified Flash-R

    (x6) Remark This exploded view shows the principle of the certified FLASH-R propeller assembly. The size of all of these components changes depending on the configuration of the propeller (diameter hole of the metallic inserts of the half- hub, length of the screws…).

  • Page 8: List Of Components

    DMFSH-3-AR_RX_C FLASH-R ROTAX 3-blade rear half-hub Certified FLASH-R AN6 DMFSH-3-AR_AN6_C 3-blade rear half-hub Certified DMFSH-3-AR_AN8_C FLASH-R AN8 Certified internal FLASH-R hub spacer EMFSH_C 3-blade front half-hub Certified DMFSH-3-AV_RX_C FLASH ROTAX 3-blade front half-hub Certified DMFSH-3-AV_AN6_C FLASH AN6 3-blade front half-hub Certified...
  • Page 9 Quan (According to Designation Part Number tity the recommend mounting) Blade FLASH-R Certified Inconel FLASH-R blade, Right FSH-D-R_I_C Fixing screws Screws CHC M8x130 V-CHC8-130 (included pins contact lock washer Ø8mm and Nylstop self-locking nut M8) Screws CHC M8x140 V-CHC8-140 (included pins contact lock washer Ø8mm and Nylstop self-locking nut M8)

  • Page 10: List Of Required Tools

    Torque screwdriver (Torque: 4 Nm) 5. Assembly instruction of the propeller The assembly of the Three-blade Certified FLASH-R propellers is shown below. It is recommended to assemble the propeller on a worktable before installing it on the plane. For further information, contact the DUC Hélices Company.
  • Page 11 Certified FLASH-R ISO 9001: 2015 TCDS EASA: EASA P.038 Part 21G EASA: FR.21G.0273 Place the front half-hub (metal insert with small hole) on the set to fit with the blade foots and internal spacer. Place the hub clamping washer on the front of the propeller hub (logo side).

  • Page 12: Installation On The Aircraft

    Certified FLASH-R 5.2. Installation on the aircraft As presented in section 4.1. Mounting configuration of the FLASH-R propeller, several mountings are possible: 1. Installing directly on propeller-shaft of the engine 2. Use a spacer for spacing propeller from the propeller-shaft 3.
  • Page 13 Certified FLASH-R ISO 9001: 2015 TCDS EASA: EASA P.038 Part 21G EASA: FR.21G.0273 5.2.2. Use of a spacer A spacer is necessary in the following case:  Engine propeller-shaft type Rotax (6 indexing dowels Ø13 on P.C.D. Ø101.6mm/Ø4")  Engine propeller-shaft positioned inside the engine hood or positioned at less than 14mm Determination of the spacer length: Measure the distance X between the propeller-shaft and the engine hood limit, then add 14mm.
  • Page 14 Certified FLASH-R 5.2.3. Use of adaptor spacer An adaptor spacer is necessary in the following case:  Engine propeller-shaft different than the type Rotax (other than P.C.D. Ø101.6mm/Ø4") If needed, see in annex 9.1 Dimension of the engine propeller-shaft Determination of the adaptor spacer length: Measure the distance X between the propeller-shaft and the limit of the engine hood, then add 14mm.

  • Page 15: Setting Of The Propeller & Finalization Of The Installation

    Certified FLASH-R ISO 9001: 2015 TCDS EASA: EASA P.038 Part 21G EASA: FR.21G.0273 5.3. Setting of the propeller & Finalization of the installation At this point, the propeller is installed on your aircraft with the spinner mounting plate. If the propeller is already assembled and the blades angle set, pass directly Otherwise, follow all the steps below to adjust the pitch angle before the final tightening of the screws.
  • Page 16 Certified FLASH-R Slightly untighten the propeller fixing screws and the hub assembly screw. Adjustment roller of the angle of attack 25 cm Reading blade angle Intrados of the blade with the leading edge upwards Horizontal blade Horizontal blade, leading edge upward, place the adjustment tool at 25 cm from the tip of the blade, intrados side (flat), handle down.
  • Page 17 AN7 bolt (7/16"): 3.5 Kg/m 35 N.m AN8 bolt (1/2"): 4,5 Kg/m 45 N.m Remark: It is imperative to use a spinner when using propeller FLASH-R. The mounting plate of the spinner can be placed before or after the spacer adaptation.

  • Page 18: Precautions

    In the presence of a marking, please respect the indexing of the spinner from its plate.  At this point, the Certified FLASH-R propeller is ready for first tests. The user must perform the appropriate regulations procedures to change the propeller in accordance with applicable regulations of the aircraft 6.

  • Page 19: Continuing Airworthiness

    7.1. Airworthiness limitations Today, the three-blade Certified FLASH-R has a limited flight potential of 2000 hour. However, a program is organized by DUC Hélices to improve this flight potential. This paragraph « Airworthiness limitations » is approved by EASA according to the Part 21.A.31 (a) and CS-P 30(b).

  • Page 20: Regular Maintenance (By The User)

    Certified FLASH-R 7.3. Regular maintenance (by the user) For a safety use of the FLASH propellers, it is necessary that the user performs regular maintenance to detect any abnormalities. Frequency of checking: Each pre-flight Checkpoints Control methods Location Possible problems...

  • Page 21: Maintenance Of 100 Hours Or Yearly Maintenance

    Certified FLASH-R ISO 9001 : 2015 N° TC EASA : EASA P.038 N° Part 21G EASA : FR.21G.0273 7.4. Maintenance of 100 hours or yearly maintenance. A propeller general check by the user or a certified aeronautic workshop must be done from time to time. During this check, clean the propeller.

  • Page 22: Impact Location On The Blade Carbon Surface

    7.5. Impact location on the blade carbon surface If there is any doubt about the blade surface, contact the DUC Hélices company. « Blade root » area « Blade tip» area (From blade root to 20 cm from the tip of the blade) (20 cm from the tip of the blade) Significant impact: Significant impact:...

  • Page 23: General Terms Of Sale

    Certified FLASH-R ISO 9001 : 2015 N° TC EASA : EASA P.038 N° Part 21G EASA : FR.21G.0273 8. General terms of sale 8.1. Ordering procedure Orders placed by fax, by phone or mail server engage the customer upon receipt by our Customer Service Order and the Regulations.

  • Page 24: Annexes

    9. Annexes 9.1. Dimension of the engine propeller-shaft 9.1.1. ROTAX 912S engine propeller-shaft 9.1.2. Lycoming O-235-H2C engine propeller-shaft, type SAE-AN6 9.1.3. Lycoming O-320-A2A propeller-shaft, type SAE2-AN6 24/27...

  • Page 25: Airfoil

    Certified FLASH-R ISO 9001 : 2015 N° TC EASA : EASA P.038 N° Part 21G EASA : FR.21G.0273 9.2. Airfoil Angle of attack Leading edge Side view Intrados Extrados Front face of propeller carrier plate completely vertical Trailing edge Advancement of the aircraft...
  • Page 26 26/27...

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