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PCM ERWIN XL slope Building Instruction

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Erwin XL slope building Instruction
www.pcm.at
Wing span [mm]:
Aspect ratio:
Wing area [dm2]:
Wing loading:
Weight [g]:
Airfoil:
BUILDING INSTRUCTION
August 2018
3000
14,67
61,33
49-70
3000-4500
VS1
ERWIN XL slope
1

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Summary of Contents for PCM ERWIN XL slope

  • Page 1 Erwin XL slope building Instruction August 2018 Wing span [mm]: 3000 Aspect ratio: 14,67 Wing area [dm2]: 61,33 Wing loading: 49-70 Weight [g]: 3000-4500 Airfoil: BUILDING INSTRUCTION ERWIN XL slope www.pcm.at...

  • Page 2: Table Of Contents

    Erwin XL slope building Instruction August 2018 CONTENTS DATA 1. Kit – Contents 2. What else do you need? 3. Electronic equipment 4. Settings for the first flight ASSEMBLING THE MODEL 5. V-tail 6. Gluing of fuselage 7. Electronic components in fuselage 8.

  • Page 3: Kit - Contents

    Erwin XL slope building Instruction August 2018 DATA 1. Kit – Contents Fuselage, in two parts, incl. canopy and cover for end of fuselage Wing, in two parts V-Tail Covers for servos on wing, 4 pieces Levers for rudders, 4 pieces...

  • Page 4: Electronic Equipment

    Erwin XL slope building Instruction August 2018 3. Electronical equipment Servos for the wing Futaba S3150 Graupner DES 448 Servos for the V-tail Graupner C261 (these servos will fit into the gap of the servo board) DES 281 C2081 Hitec...

  • Page 5: Settings For The First Flight

    Erwin XL slope building Instruction August 2018 4. Settings for the first flight (measure from the leading edge of the wing to the back) Centre of gravity: weak conditions: 88-94mm (f.e. plain, soft wind on slope) strong wind on slope: up to 110mm possible Hook for winch start: 10-20mm before centre of gravity (start with 20mm) Difference in angle of attack: +1°...

  • Page 6: Assembling The Model

    Erwin XL slope building Instruction August 2018 ASSEMBLING THE MODEL 5. V-tail The v-tail is ready prepared with holes for screws to be fixed on the fuselage. Controlling of the elevator: Bend two brass levers as shown below and glue the ball connectors to one end each.

  • Page 7: Gluing Of Fuselage

    Erwin XL slope building Instruction August 2018 6. Gluing the fuselage Check the alignment of the V-tail regarding the axis of the fuselage, so that it is fixed symmetrically. To do this, mount v-tail and wing on the fuselage. Look at Erwin XL from the front and slowly lower the tail, until the ends of the elevator disappear behind the wing.

  • Page 8: Electronic Components In Fuselage

    Erwin XL slope building Instruction August 2018 7. Electronic components inside the fuselage First of all, thread a steel wire of 1,5 mm into the outer tubes of the push rods. By this, they get a lot stiffer and you can thread them into the fuselage easily. Once the tubes are inside the fuselage, you can bring them to the right position from outside by using magnets.

  • Page 9: Wing

    Erwin XL slope building Instruction August 2018 We use a very simple solution to mount the canopy. Just glue the carbon stick into the canopy. 8. Wing The openings for the servos are big enough for all appropriate standard servos including mounting frame, such as Futaba S3150.
  • Page 10 Erwin XL slope building Instruction August 2018 For gluing the lever use epoxy-glue with cotton flocks. When fitting the lever in the correct position, notice that the hole in the lever should be situated vertically above the hinge line. To connect the servos to the levers use two connectors M2,5mm.

  • Page 11: Installation Of Antenna

    The angle between the antennas should be 90°. 35 / 40 MHz: As Erwin XL slope is completely made of carbon, a part of the antenna must be situated outside the model. One possiblity is to „extend“ the fuselage at the rear end with a steel wire of about 450mm.

  • Page 12: Before The First Flight

    You should always use two connectors when flying Erwin XL slope. If the glider accelerates too slowly, don’t hesitate to add further weight. Erwin XL slope can do well with more weight, in the air as well as when landing.

  • Page 13: Fixing Of The Wing

    Erwin XL slope building Instruction August 2018 11. Fixing of the wing When attaching the wings, make sure that the connector will not be postponed again. First, push the connector into the first wing half as far as possible. Note, that the shorter part of the connector should disappear inside the wing.

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