Bruce Goldsmith Design DUAL 2, Manual

Page 1: ...1 DUAL 2 manual EN version 7 February 2020 Version 7 February 2020 ...

Page 2: ...2020 1 Quick Summary 3 2 Welcome 4 3 Introduction 5 4 Preparation 6 5 Flight Characteristics 9 6 Recovery Techniques 15 7 Storage and Servicing 18 8 Technical Data 20 9 Service booklet 31 10 Closing Words 35 11 Appendix 36 Contents Contents ...

Page 3: ...e neutral position which is marked with white stitching trimmers released 30mm The fully trimmed slow position should only be used if the glider is very heavily loaded The 9cm carbon or plastic brake handle inserts can be added to make the brake handles more rigid Trimmer webbing is subject to wear so the Dual 2 is delivered with a spare set of trimmers These can be easily changed by the pilot ...

Page 4: ...gratulations on your purchase of the BGD DUAL 2 The DUAL 2 is suitable for both commercial and recreational tandem flying Exceptional handling combined with good speed and performance make this a wing a real pleasure to fly It is very easy to launch requiring only a very short take off run helping you get airborne safely with first time passengers who are not used to running Handling is light dire...

Page 5: ...Please be sure that this has been completed by your dealer Failure to test fly a new paraglider may invalidate any warranty In order to enjoy full benefits of the BGD warranty you are required to complete the warranty form on the website For further information please refer to the corresponding page on our website Any modification e g change of line lengths or changes to the speed system can cause...

Page 6: ...al 2 comes with long travel trimmers For take off and landing it is best to release the trimmers 30mm from their fully trimmed position This intermediate position is marked with white stitching The wing will come up more easily with this setting In flight pulling the trimmers in fully to their slowest position lightens the brake pressure If you are flying near the top of the weight range you can f...

Page 7: ...which attaches the brake handles to the brake lines Avoid having too many knots as there is a risk the knots could become stuck in the brake pulleys Both brakes should be the same length and this can be checked by asking an assistant to hold the upper end of the brake lines together whilst the pilot holds the brake handles The brake lines should be just slack with the wing inflated when the brakes...

Page 8: ... 7 February 2020 7 BIG EARS BLOCKER Ensure the neoprene covers are pulled down over the Big Ears Blocker System on each riser to prevent lines from being caught in the cleats Your paraglider is now ready for flight 4 Preparation ...

Page 9: ...htly loaded wing tends to deform or collapse slightly more than a higher loaded wing Agility speed and stability in turbulence are increased at higher wing loadings but the glider will be more dynamic in turns and after collapses Active Piloting Active piloting is a tool that will help you fly with greater safety and enjoyment It means flying in empathy with your paraglider This means not only gui...

Page 10: ...e found in section 8 of this manual The big ears blocker system is a camcleat with a neoprene cover that prevents lines from catching In the air the pilot can use the outer As to pull the required size of big ears and then slide the line into the cleat to block big ears on On releasing the line from the cleat big ears reinflate automatically Take off It is recommended to launch with the trimmers r...

Page 11: ...require a strong handed approach to manoeuvring For a fast turn smoothly apply the brake on the side to which the turn is intended The speed with which the brake is applied is very important If a brake is applied fairly quickly the canopy will do a faster banking turn but care must be taken not to bank too severely To attain a more efficient turn at minimum sink apply some brake to the outside win...

Page 12: ...greatly reduced forward speed To engage big ears lean forward in the harness and grasp the outer A lines or the maillons of the Baby A risers if your paraglider is equipped with these check the Risers diagram in the Technical Data pages of this manual keeping hold of both brake handles if possible Pull the outer A lines or Baby A risers out and down at least 30 cm so as to collapse the tips of the...

Page 13: ...ne brake The bank angle and speed of the turn will increase as the downward spiral is continued Be careful to enter the spiral gradually as too quick a brake application can cause a spin or an over the nose spiral If the pilot increases the descent rate of the spiral to over 16 m s or initiates what is known as an over the nose spiral the glider may require pilot input to recover In this case all ...

Page 14: ...n altitude of around 2m when landing in light winds It may sometimes help to take wraps on the brakes to make the flare more effective Strong wind landings require a different technique If you use the brakes to flare in a strong wind the wing tends to convert this to height This can be a real problem The best method is to take hold of the rear risers at the maillons just before landing and collaps...

Page 15: ...ended to give instruction in this or any other area Deep Stall or Parachutal Stall Your paraglider has been designed so that it will not easily remain in a deep stall However if it is incorrectly rigged or its flying characteristics have been adversely affected by some other cause it is possible that it could enter this situation In the interests of safety all pilots should be aware of this proble...

Page 16: ...ntly induced you should release the brake pressure but always be ready to damp out any dive as the glider exits the spin Failure to damp the dive on exiting the spin may result in an asymmetric deflation Symmetric Front Collapse It is possible that turbulence can cause the front of the wing to symmetrically collapse though active piloting can largely prevent this from occurring accidentally A pilo...

Page 17: ...se above If the canopy still does not recover then pull the rear risers to help the canopy to reinflate Pulling the stabilo line is also a good way to remove cravats but remember to control your flight direction as your number one priority If you are very low then it is much more important to steer the canopy into a safe landing place or even throw your reserve NOTE Test pilots have tested your ne...

Page 18: ...n severely compromise the safety of your canopy Therefore once you have finished flying put your wing away Do not leave it laying in strong sunshine unnecessarily If you are concerned about any aspect of the integrity of your paraglider please contact your nearest BGD dealer or talk to BGD directly Do not treat your canopy with chemical cleaners or solvents If you must wash the fabric use warm wat...

Page 19: ... number of flights and hours flown in the Service Record and send together with your glider when it goes for inspection or servicing The manufacturer will only accept responsibility for paraglider lines and repairs which we have produced and fitted or repaired ourselves Environmental protection and recycling Our sport takes place in the natural environment and we should do everything to preserve o...

Page 20: ...MF 36g m2 Internal structure Porcher Skytex 40g m2 Hard Nose reinforcing Plastic wire 2 5mm and 2 0mm Pulleys Riley steel roller Risers 20mm black nylon webbing Top lines Liros PPSL DSL sheathed Middle lines Liros TSL sheathed Lower lines Liros TSL sheathed Brakes Liros DSL sheathed Spare parts can be obtained directly from BGD or though our network of registered BGD repair shops For a full list c...

Page 21: ...Glider weight kg 7 5 7 5 7 9 Total line length m 416 426 436 Height m 9 3 9 6 9 8 Number of main lines 3 4 3 3 Cells 52 Flat aspect ratio 5 5 Projected aspect ratio 4 1 Root chord m 3 31 3 4 3 48 Flat span m 14 46 14 83 15 20 Projected span m 11 47 11 77 12 06 Weight range kg 100 200 110 210 120 220 Trim speed km h 40 Top speed km h 52 Min sink m s 1 Best glide 9 Certification EN LTF B ...

Page 22: ...22 DUAL 2 manual EN version 7 February 2020 Overview of glider parts 8 Technical data Openings Mid lines Lower lines Leading edge Trailing edge Risers Harness Top lines ...

Page 23: ...data Risers Baby A or big ears riser Camcleat Big Ears Blocker Brake line pulley 35 5m m Tab to pull back cover Neoprene cover Plastic puller ball Replaceable trimmer webbing Knot inside ball to replace trimmer webbing Trimmers have 10cm travel Brake handle ...

Page 24: ...2 a10 b10 c10 d11 e11 a9 b9 c9 d10 e10 d9 e9 a8 b8 c8 a7 b7 c7 d8 e8 d7 e7 a6 b6 c6 a5 b5 c5 d6 e6 d5 e5 a4 b4 c4 d4 e4 a3 b3 c3 d3 e3 a2 b2 c2 d2 e2 a1 b1 c1 d1 e1 B R 4 AM7 C M 7 BM7 AR1 A M 2 A M 1 AR2 A M 3 A M 4 A R 3 A M 6 AM 5 BR 1 BM1 BM2 BR 2 BM3 BM4 B R 3 BM6 BM5 D R 1 DM1 DM2 DR2 D M 4 D M 3 DM5 D R 3 D M 7 DM 6 CR 1 CM2 CM1 CR2 CM4 CM3 C R 3 CM6 CM5 KM1 KM2 KM3 KM4 K1 K2 K3 K4 K5 K6 K7...

Page 25: ...s include the risers 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 The difference in length between the manual and the sample may be no more than 10mm The actual measurements for the wings tested during EN certification can be found...

Page 26: ... 8335 8098 14 8227 8219 8277 8280 15 7993 7935 7978 8284 16 7864 7836 7830 7957 17 7785 7786 Bridle check table 38m2 8 Technical data A B C D E K 1 9135 9013 8980 9107 9220 9455 2 9045 8924 8913 9020 9150 9261 3 9001 8880 8875 8988 9113 9108 4 9030 8910 8890 9049 9159 9072 5 8955 8841 8842 9050 9167 8908 6 8906 8794 8802 8965 9090 8773 7 8854 8744 8754 8851 8964 8691 8 8863 8755 8761 8833 8943 869...

Page 27: ...9422 5 9177 9064 9090 9263 9340 9324 6 9131 9018 9018 9181 9262 9159 7 9080 8968 8979 9090 9155 9038 8 9086 8977 9007 9085 9145 9010 9 8941 8868 8919 9133 9225 8961 10 8848 8779 8819 9196 9269 8835 11 8834 8773 8796 8960 9034 8761 12 8719 8676 8723 8873 8946 8660 13 8649 8638 8679 8782 8667 14 8659 8668 8697 8732 15 8439 8370 8402 8748 16 8302 8267 8257 8398 17 8217 8213 Bridle check table 42m2 ...

Page 28: ...d11 612 e11 685 k11 731 a12 663 b12 641 c12 636 d12 525 e12 598 k12 636 a13 600 b13 599 c13 604 d13 659 k13 644 a14 616 b14 621 c14 630 d14 605 a15 811 b15 727 c15 849 d15 615 a16 684 b16 629 c16 703 d16 821 a17 606 b17 580 AM1 2214 BM1 2083 CM1 2172 DM1 1313 KM1 1590 AM2 2141 BM2 2047 CM2 2051 DM2 1255 KM2 1393 AM3 2083 BM3 2053 CM3 2053 DM3 2087 KM3 1526 AM4 2032 BM4 2006 CM4 2016 DM4 1938 KM4 1...

Page 29: ... 703 d11 487 e11 570 k11 801 a12 968 b12 782 c12 650 d12 395 e12 481 k12 724 a13 908 b13 740 c13 623 d13 676 k13 739 a14 904 b14 753 c14 658 d14 624 a15 833 b15 794 c15 790 d15 639 a16 707 b16 700 c16 748 a17 629 b17 661 AM1 1789 BM1 1781 CM1 2398 DM1 1342 KM1 1620 AM2 1696 BM2 1678 CM2 2301 DM2 1303 KM2 1438 AM3 2028 BM3 1998 CM3 2220 DM3 2166 KM3 1551 AM4 1991 BM4 1945 CM4 2173 DM4 2020 KM4 1564...

Page 30: ...d11 643 e11 715 k11 769 a12 699 b12 668 c12 677 d12 557 e12 631 k12 669 a13 631 b13 632 c13 634 d13 687 k13 677 a14 647 b14 663 c14 653 d14 638 a15 854 b15 764 c15 891 d15 655 a16 718 b16 662 c16 748 d16 895 a17 635 b17 609 AM1 2323 BM1 2193 CM1 2184 DM1 1384 KM1 1680 AM2 2269 BM2 2158 CM2 2161 DM2 1329 KM2 1475 AM3 2193 BM3 2161 CM3 2003 DM3 2156 KM3 1612 AM4 2145 BM4 2113 CM4 1958 DM4 2028 KM4 1...

Page 31: ...31 DUAL 2 manual EN version 7 February 2020 9 Service Booklet Test Flight Record Model Size Serial Number Colour Date of test flight Company signature and stamp 9 Service booklet ...

Page 32: ... February 2020 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 Type of service 9 Service booklet ...

Page 33: ...33 DUAL 2 manual EN version 7 February 2020 Owner Record Pilot No 1 First name Family name Street City Post code Country Telephone Email 9 Service booklet ...

Page 34: ...34 DUAL 2 manual EN version 7 February 2020 Owner Record Pilot No 2 First name Family name Street City Post code Country Telephone Email 9 Service booklet ...

Page 35: ...ffective lifespan of the current generation of gliders and how much material material ageing is acceptable without affecting the airworthiness There are natural forces that can seriously threaten your safety regardless of the quality of construction or the condition of your glider Your security is ultimately your responsibility We strongly recommend that you fly carefully adapt to the weather cond...

Page 36: ...0 8621 8555 8589 8909 8987 8546 11 8602 8551 8583 8745 8827 8491 12 8498 8459 8507 8654 8737 8418 13 8437 8418 8479 8556 8432 14 8435 8433 8512 8505 15 8222 8174 8224 8519 16 8098 8079 8180 8413 17 8020 8041 38m2 A B C D E K 1 8859 8737 8730 8875 8982 9345 2 8786 8663 8663 8788 8907 9120 3 8751 8622 8620 8750 8863 8933 4 8763 8638 8642 8809 8910 8873 5 8698 8590 8602 8800 8905 8752 6 8654 8546 856...

Page 37: ... 5 9182 9064 9084 9257 9330 9324 6 9135 9018 9016 9178 9252 9159 7 9086 8970 8979 9084 9155 9042 8 9097 8980 9007 9084 9146 9013 9 8940 8870 8918 9130 9222 8965 10 8840 8782 8819 9195 9266 8840 11 8835 8776 8798 8961 9034 8769 12 8717 8678 8725 8874 8951 8666 13 8649 8640 8680 8785 8672 14 8664 8674 8698 8734 15 8435 8372 8405 8752 16 8299 8268 8265 8413 17 8219 8214 Weight of EN test sample 7 96k...