Related Manuals for LZ design FES FES-DIS-P1-102
Summary of Contents for LZ design FES FES-DIS-P1-102
- Page 1 FES PROPELLER MANUAL Version 1.21 FES-DIS-P1-102 Type: LZ design d.o.o., • Brod 3D, 1370 Logatec, Slovenia • tel +386 59 948 898 info@lzdesign.si • www.front-electric-sustainer.com...
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Page 2: Table Of Contents
FES Propeller Manual, Version 1.21 September 2020 Table of Content 1. Important notices ..................... 3 1.1 Limited Warranty ....................3 2. Technical data ......................5 3. Model designation ....................5 4. Construction ......................6 4.1 Certification standards ..................6 4.2 Construction Material ................... 6 4.3 Surface finish ...................... -
Page 3: Important Notices
This product is warranted to be free from defects in materials or workmanship for two years from the date of purchase. Within this period, LZ design will, at its sole option, repair or replace any components that fail in normal use. Such repairs or replacement will be made at no charge to the customer for parts and labor, but the customer shall be responsible for any transportation cost. - Page 4 FES Propeller Manual, Version 1.21 September 2020 Warning! Users of FES powered sailplanes should recognize that various types of risks are involved, and they should take all precautions to minimize them, since they cannot be eliminated entirely. The propeller blades are one of the most critical parts of powered sailplane, having vital importance to the flight safety.
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Page 5: Technical Data
FES Propeller Manual, Version 1.21 September 2020 2. Technical data FES propeller is assembly of foldable, fixed pitch composite propeller blades which are mounted on special hub with attachment bolts at certain angle. Number of propeller blades Maximum power on a propeller shaft 23 kW Maximum rotational speed 4500 RPM... -
Page 6: Construction
FES Propeller Manual, Version 1.21 September 2020 4. Construction 4.1 Certification standards Propeller type FES-DIS-P1-102 described here is designed and tested according to CS 22 Subpart J. This manual is intended to comply with CS‐22.1903, providing the essential information for installing, servicing, and maintaining the propeller. 4.2 Construction Material Propeller blades are made of CRFP (carbon fiber reinforced plastic). - Page 7 FES Propeller Manual, Version 1.21 September 2020 2. Left (marked as A) and right (marked as B) propeller blade have slightly different shape of top center surface due to asymmetric shape of the spinner. When each of them is installed on proper side, and aligned with the fuselage, top surface of the first 3cm need to have contour aligned with spinner shape.
- Page 8 FES Propeller Manual, Version 1.21 September 2020 5. Before placing washers, crown nuts, and split pins, it is strongly recommended to close motor openings with a tape, as show on photo above in order to reduce possibility that any of the small parts could enter into the motor, if it falls through the fingers by coincidence.
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Page 9: Operating Instructions
FES Propeller Manual, Version 1.21 September 2020 7. Fix the spinner with four Inox M4x8mm countersink head screws, and two M4x6mm screws. Two screws which are 2mm shorter are located at 60deg and at 300deg angle (upper left and right). Tightening of all 6 screws should be gently with small torque (do not use high torque, as thread in the aluminum plate could be damaged). -
Page 10: Maintenance And Repair
FES Propeller Manual, Version 1.21 September 2020 9. Maintenance and repair 1. Periodic control of propeller is required after every 50 hours of motor run or after 12 months, whatever comes first, by air-worthiness controller: - check visually the leading and trailing edge at the root. If there are visible any cracks or other major damages, please contact manufacturer for advice before next flight.
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