Bruce Goldsmith Design LUNA 2 Owner's Manual
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Bruce Goldsmith Design LUNA 2 Owner's Manual

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Version 1.2 June 2018
Version 1.2 June 2018

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Summary of Contents for Bruce Goldsmith Design LUNA 2

  • Page 1 Version 1.2 June 2018 Version 1.2 June 2018...

  • Page 2: Table Of Contents

    Contents Contents 1. Welcome 2. Introduction 3. Preparation 4. Flight Characteristics 5. Recovery Techniques 6. Storage and Servicing 7. Technical Data 8. Service booklet 9. Closing Words Version 1.2 June 2018...

  • Page 3: Welcome

    Congratulations on your purchase of the BGD LUNA 2 The LUNA 2 is made for powered paragliding, and offers the perfect blend of comfort, performance and speed creating the ideal choice for intermediate pilots up to competition racers.

  • Page 4: Introduction

    2. Introduction 2. Introduction This glider is not intended to be used for aerobatic manoeuvres. This paraglider must not: 1. Be flown outside the certified weight range 2. Have its trim speed adjusted by changing the length of risers or lines 3.
  • Page 5 2. Introduction Any modification, e.g. change of line lengths or changes to the speed system, can cause a loss of airworthiness and certification. We recommend that you contact your dealer or BGD directly before performing any kind of change. However, the length of the brake lines should be adjusted according to whether it is being flown with high or low hangpoints, or trikes.

  • Page 6: Preparation

    3. Preparation 3. Preparation 1. Select a suitable take-off area determined by wind and terrain, clear of any obstacles that may catch in the lines or damage the canopy. 2. Open out your paraglider so that the bottom surface is facing upwards, with the openings at the downwind end of the take-off area and the harness at the trailing edge at the upwind side.
  • Page 7 3. Preparation have been caught on a sharp object or even have been damaged whilst in its bag. 2. Check that the lines are not twisted or knotted. Divide the suspension lines into groups, each group coming from one riser. By starting from the harness and running towards the canopy remove any tangles or twists in the lines.

  • Page 8: Flight Characteristics

    4. Flight Characteristics 4. Flight Characteristics This manual is not intended as an instruction book on how to fly your paraglider. You should be a qualified pilot or under suitable supervision, but the following comments describe how to get the best from your wing. Weight range Each size is certified for a certain weight range.
  • Page 9 4. Flight Characteristics case we recommend that the trimmers be partially released for launch. Never try to launch if the wing is not perfectly inflated above your head and you do not have full control of pitch and roll. Initial Climb Once in the air you should continue to fly into wind while gaining altitude.
  • Page 10 4. Flight Characteristics points. If they are showing signs of wear, the trimmers should be replaced. This can be done by the pilot. Turning The first turns should be gradual and progressive. The first action to change direction should be the movement of your weight in the harness towards the side of the intended turn.
  • Page 11 4. Flight Characteristics harness is necessary. These reactions are instinctive in experienced pilots. It is essential to maintain contact with the paraglider by a light pressure on the brakes. This allows the pilot to feel decreases in the wing’s internal pressure which often precede collapses.
  • Page 12 4. Flight Characteristics B-line stall may result in the glider entering a spin. This manoeuvre is useful if you need to lose a lot of height quickly, perhaps when escaping from a thunderstorm. It should not be performed with less than 100m of ground clearance (see also also Chapter 5). Spiral Dive A normal turn can be converted into a strong spiral dive by continuing to apply one brake.
  • Page 13 4. Flight Characteristics Speed with the accelerator and the use of trimmers The PPG risers have trimmers to allow easy fast cruising. The standard trimmer setting is fully closed, which is the slowest position. The risers also have a speedbar system, but the glider can be flown without the speedbar attached. Both trimmers and speedbar increase the speed of the paraglider and also slightly degrade the glide angle, which makes the wing slightly more susceptible to collapses.
  • Page 14 5. Recovery Techniques 5. Recovery Techniques All of the following manoeuvres can be dangerous, and should only be practised in a secure environment, such as an SIV course. Stalls Stalls are caused by flying too slowly. Airspeed is lost as brake pressure increases and as the canopy approaches the stall point it will start to descend vertically and finally begin to collapse.

  • Page 15: Recovery Techniques

    5. Recovery Techniques turn it will automatically change to normal flight, but it is very important not to turn too fast as this could induce a spin. The second method is to pull gently on the A-risers. This helps the airflow to re-attach to the leading edge, but be careful not to pull down too hard as this will induce a front collapse.
  • Page 16 5. Recovery Techniques will tend to reinflate the wing. However, with more persistent collapses it may be necessary to pump the brake on the collapsed wing using a long, strong, smooth and firm action. Normally one or two pumps of around 80 cm will be sufficient. Each pump should be applied in about one second and smoothly released.

  • Page 17: Storage And Servicing

    6. Storage and Servicing 6. Storage and Servicing Storage If you have to pack your canopy away wet, do not leave it for more than a few hours in that condition. As soon as possible dry it out, but do not use direct heat sources as it is inflammable! Always store the canopy in a dry, warm place.
  • Page 18 6. Storage and Servicing Servicing / Inspection It is important to have your glider regularly serviced. Your BGD wing should have a thorough check / inspection every 24 months or every 150 flight hours, whichever occurs first. This check must be made by the manufacturer, importer, distributor or other authorised persons.

  • Page 19: Technical Data

    7. Technical data 7. Technical data Materials The LUNA 2 is made from the following quality materials: Top surface: Dominico Dokdo-N30DMF Bottom surface: Porcher Ezzyfly 38g/m Internal structure: Porcher Skytex 40g Nose reinforcing: Plastic wire 2.4mm and 2.7 mm Risers:...
  • Page 20 7. Technical data Specifications Projected area 17.34 19.94 22.54 Flat area 20.0 23.00 26.0 Glider weight Height 7.77 Number of main lines 3/4/3/2 3/4/3/2 3/4/3/2 Cells Flat aspect ratio 5.35 5.35 5.35 Projected aspet ratio 3.83 3.83 3.83 Central chord 2.433 2.609 2.774...
  • Page 21 7. Technical data Overview of glider parts Openings Top lines Mid lines Leading edge Lower lines Trailing edge Brake lines Risers Harness Version 1.2 June 2018...
  • Page 22 7. Technical data PPG Risers Baby-A or ‘big ears’ riser Brake-line pulleys Accelerator system +135mm Trim +85mm Version 1.2 June 2018...
  • Page 23 7. Technical data Line Plan Version 1.2 June 2018...
  • Page 24 7. Technical data 8. Technical data Line length checks All measures are in mm, with 50N line tension, this tension being slowly and gradually applied before taking the measurement. The lengths are measured from the lower surface of the canopy and include the risers and maillons. During the EN certification process, the test team has checked the lengths of the suspension lines, control lines and risers given in the manual against the sample glider, after the test flights have been carried out.
  • Page 25 7. Technical data Line lengths Size 20 Size 23 Size 26 7215 7152 7275 7428 7482 7580 6744 6679 6792 6928 6978 5709 7698 7633 7762 7922 7979 8091 7183 7120 7248 7402 7458 7378 7665 7599 7733 7895 7954 7877 6702 6648...
  • Page 26 7. Technical data Individual line lengths A-lines B-lines C-lines D-lines E-lines Brakes Tip Steering Version 1.2 June 2018...
  • Page 27 7. Technical data Individual line lengths Size 20 A-lines B-lines C-lines D-lines E-lines 2863 2840 2914 3003 2831 2804 2836 2878 2811 2786 2867 2952 2126 2107 2133 2190 3486 3465 3553 3605 2108 2096 2114 2158 1548 1664 1824 1767 3635 3530...
  • Page 28 7. Technical data Individual line lengths Size 23 A-lines B-lines C-lines D-lines E-lines 3070 3043 3124 3222 3073 3042 3076 3135 3018 2989 3077 3170 2281 2259 2287 2349 3781 3756 3852 3915 2263 2250 2270 2316 1663 1786 1826 1895 3942 3830...
  • Page 29 7. Technical data Individual line lengths Size 26 A-lines B-lines C-lines D-lines E-lines 3263 3234 3320 3424 3298 3265 3302 3364 3210 3179 3274 3371 2424 2401 2431 2497 4055 4028 4130 4198 2406 2392 2414 2462 1082 1768 1898 1029 1826 2014...

  • Page 30: Service Booklet

    8. Service booklet 8. Service Booklet Test Flight Record Model Size Serial Number Colour Date of test flight Company signature and stamp Version 1.2 June 2018...
  • Page 31 8. Service booklet Service Record Service No 1: Date : Stamp - Signature : No flights : Type of service : Service No 2: Date : Stamp - Signature : No flights : Type of service : Service No 3: Date : Stamp - Signature : No flights...
  • Page 32 8. Service booklet Owner Record Pilot No 1 First name Family name Street City Post code Country Telephone Email: Version 1.2 June 2018...
  • Page 33 8. Service booklet Owner Record Pilot No 2 First name Family name Street City Post code Country Telephone Email: Version 1.2 June 2018...

  • Page 34: Closing Words

    9. Closing Words 9. Closing Words Your paraglider is an advanced, stable glider that promises many hours of safe and enjoyable flying, provided you treat it with care and always respect the potential dangers of aviation. Please always remember that flying can be dangerous and your safety depends on you. With careful treatment your wing should last for many years.

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