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12 

Losing altitude 

 

  Should you encounter  a situation where you need to descend quickly or the lift becomes to 
strong, there are several ways of quickly getting down.   
  The best way is of course, to find sink. This is often forgotten in a situation of stress  - 
leave the lift! 
  Here are some examples on how to get down fast. We recommend you try them out under 
qualified supervision during a safety training course over the water.   
 

Big ears 

  Although the noise of the wind around your ears may imply it, the 

groundspeed

 does not 

improve with big ears. On the contrary, flying with your  glider’s  ”ears” in will decrease your 
maximum  ground  speed  by about 6 km/h. It is however a safe method of moderately losing 
altitude while maintaining some forward speed.   

Pull in big ears with the outer A line on each side. Reach high into the lines and pull 

outwards downwards. On releasing the lines,  you might pump out the big ears with 
Boomerang: they will only slowly come out on by themselves.   

If necessary, keep the big ears in until you flare for landing instead of letting them out on 

the approach. This is a safer method because of a possible wind gradient and your low 
airspeed/high wing loading with big ears in. 

 

Spiral dive 

  The Boomerang has a very effective spiral dive. Weightshift and pull the brake on one side 
slowly. Let it accelerate for two turns and enjoy the roaring wind and high G-force. You can 
achieve sink rates of up to 20m/s this way. Once you have entered the spiral you can control 
your descent rate and bank angle with weight shift and the outer brake.   

WARNING! A pilot  not accustomed  to spiralling and/or dehydrated,  can  quickly  lose 

consciousness in a steep spiral dive! Practice spiralling with caution and lesser sinkrates to get a 
feel for the Boomerang´s behaviour. When exiting a steep spiral dive, let it decelerate for one or 
two turns with outer brake applied and/or weight shift to the outside to avoid big pendulum effects 
and deflations. 
 
 
 

Содержание Boomerang RF M

Страница 1: ...English ...

Страница 2: ...ing to cross country and competition flying It is also suitable for towing We expect the dealer and end user to have sufficient knowledge and experience of high performance paragliders their uses and dangers Should this not be the case this manual can never be the means to gain that experience This glider has been designed for a pilot who flies more than 50 flights a year has previous experience o...

Страница 3: ...ing the Boomerang 9 In turbulence 10 Flat spin 10 Asymmetric deflation 10 Frontal deflation 10 Cravatte 11 Cascade of events 11 On materials 11 Rapid descent techniques 11 Big Ears 12 360 spiral dive 12 B stall 13 Deep stall 13 Full stall 13 Steering without brakes 13 Aerobatics 13 Landing the Boomerang 14 Packing instructions 14 Care and maintenance 14 Inspections 15 Security responsibility and f...

Страница 4: ...ertification The Gin Gliders Boomerang has passed AFNOR tests in the COMPETITION Category It has also been shock tested and passed with a load corresponding to more than 8G of the maximum weight in flight ...

Страница 5: ...led by one operator to ensure consistency and accountability The lines are cut under load with a specially designed robot to achieve maximum precision and each line length is measured electronically at the end of the production process Using these design and construction techniques Gin has reached a new standard in glider design manufacturing safety and performance Brake line adjustment The main b...

Страница 6: ... the highest speeds should be used with caution especially in turbulent air The highly effective speed system of the Boomerang allows for approx 17km h gain in speed As all testing of the glider is made with the original speed system Modifying the risers for more travel denies the glider its full safety potential and invalidates certification Riser A B C D length at trimspeed 52cm 52cm 52cm 52cm l...

Страница 7: ...packing instructions We recommend you unpack and inflate your glider on a small training hill or even flat ground when doing so for the first time It is important to get a feel for the glider s behaviour during launch and take off There is nothing worse than the stress of a crowded take off and new equipment for things to go wrong Some test pilots spend hundreds of hours every year just ground han...

Страница 8: ... are windy we recommend building a wall by partially inflating your glider on the ground thus sorting lines out thoroughly In such conditions a reverse launch is recommended where you keep an eye on the glider during most of the take off procedure The Boomerang is very easy to control in a reverse launch situation It quickly comes up over your head without overshooting You only need to guide the A...

Страница 9: ...levant safety precautions for towing Motorized flight The Boomerang has not been certified for motorized flight at the time of writing However motorized flying has been made with great success due to its very easy take off characteristics high performance stability and extraordinarily good handling Always use certified combinations of engine harness glider Always check with your federation if in d...

Страница 10: ... far from the limits of a flatspin Nevertheless should this occur just let up the brakes and wait for the glider to regain forward speed A deflation might sometimes occur exiting a spin Take appropriate action against it according to the descriptions below Asymmetricdeflation In the event of encountering strong turbulence and suffering an asymmetric deflation the Boomerang will easily keep it s fl...

Страница 11: ...t once put it overcorrection is the mother of a spin If you have altitude stay cool If you don t better throw your reserve one time too many than never again On materials All modern gliders are built with as much of a safety margin as possible The Boomerang is tested to more than 8 times its maximum load 8G s and passed without remarks However modern glider design has reached the level where mater...

Страница 12: ... you might pump out the big ears with Boomerang they will only slowly come out on by themselves If necessary keep the big ears in until you flare for landing instead of letting them out on the approach This is a safer method because of a possible wind gradient and your low airspeed high wing loading with big ears in Spiral dive The Boomerang has a very effective spiral dive Weightshift and pull th...

Страница 13: ... your hands If so push the speedbar Never try to steer out of a deep stall Fullstall dynamicstall You will find your Boomerang to have a smooth stall without big pilot pendulum forwards The surge upon release is moderate The gliders are tested without wraps Keep your hands close to your body during the stall Before releasing the stall raise your hands slightly to fill the glider with air Let the b...

Страница 14: ...d is worth it in the long term You will enjoy unadulterated performance top speed ease of take off and tuck resistance for years ahead Sounds good huh Care and maintenance Care should be taken with the small reinforcements of the Rigifoil System They are generally very resistant but should they become damaged they can be replaced easily by an official GIN distributor or dealer If a line is damaged...

Страница 15: ...isible air you have to use your judgment and experience Lack thereof easily causes accidents Neither the manufacturer nor distributor for this paraglider can be held responsible for any damage you sustain to yourself and or others This includes objects and third parties To fly this equipment you should Be in your right mind unaffected by alcohol or other drugs Have read and understood this owner s...

Страница 16: ...AREA 22 19m 24 08m 26 04m SPAN 9 67m 10 08m 10 48m PROJECTED A R 4 84 4 84 4 84 ROOT 2 45m 2 56m 2 66 CHORD TIP 0 10m 0 11m 0 11m TOTALHEIGHT 7 96m 8 30m 8 63m CELLNUMBER 25 3 25 3 25 3 GLIDERWEIGHT 6 9kg 7 5kg 7 9kg WEIGHTINFLIGHT 75 95kg 90 110kg 105 125kg AFNOR COMPETITION COMPETITION COMPETITION D H V ...

Страница 17: ...17 LINEPLAN Boomerang XS S M L ...

Страница 18: ...ENTIN FALLAVIER Cedex France FINISH IDENTIFICATION W R PU coating ME PU coating COMPOSITION POLYAMIDE 6 6 HIGH TENACITY WEIGHT g sqm 45 WIDTH cm 152 CONSTRUCTION Rip Stop WARP 40 mini BREAKING STRENGTH DaN 5cm WEFT 33 mini Elongation on bias 3 Ibs 4 Elongation on bias 5 Ibs 10 Elongation on bias 10 Ibs 20 WARP 1 5 mini TEAR STRENGTH DaN WEFT 2 mini AIR Permeability p 2000Pa l SQMXMN 40 maxi ...

Страница 19: ...ex France FINISH IDENTIFICATION FM PU coating COMPOSITION POLYAMIDE 6 6 HIGH TENACITY WEIGHT g sqm 45 3 WIDTH cm 158 CONSTRUCTION Rip Stop WARP 40 mini BREAKING STRENGTH DaN 5cm WEFT 33 mini Elongation on bias 3 Ibs 1 5 0 5 Elongation on bias 5 Ibs 2 1 Elongation on bias 10 Ibs 4 2 WARP 1 mini TEAR STRENGTH DaN WEFT 1 mini AIR Permeability p 2000Pa l SQMXMN 100 maxi ...

Страница 20: ...ALLAVIER Cedex France FINISH IDENTIFICATION ME PU coating COMPOSITION POLYAMIDE 6 6 HIGH TENACITY WEIGHT g sqm 39 2 WIDTH cm 158 CONSTRUCTION Rip Stop WARP 41 mini BREAKING STRENGTH DaN 5cm WEFT 35 mini Elongation on bias 3 Ibs 5 Elongation on bias 5 Ibs 13 Elongation on bias 10 Ibs 25 WARP 3 mini TEAR STRENGTH DaN WEFT 3 mini AIR Permeability p 2000Pa l SQMXMN 40 maxi ...

Страница 21: ...PAN DIAMETER mm 1 1 1 3 1 6 YARN COUNT 1 000D 1 000D 1 000D NUMBER OF CORE 4 5 9 BREAKING STRENGTH 80kg 100KG 180kg 3 REINF ORCEMENT FABRIC CODE P260 1 0 UVM NAME DIMENSION POLYANT Gmbh SUPPLIER ADDRESS Speefeld 7 D 47906 Kempen germany MATERIAL POLYESTER SCRIM STYLE P260 FINISH 1 0 UVM WEIGHT g m2 283 CONSTRUCTION 150P 150P FILM 150P 150P ...

Страница 22: ...ESS 13 RUE DO PILAT 42400 ST CHAMOND FRANCE WEIGHT GR M 25 BREAKING STRENGTH 1 100DAN WIDTH mm 22mm 5 MAILLONS MATERIAL STAINLESS STEEL NAME ANSUNG PRECISION CO SUPPLIER ADDRESS 212 32 ANYANG 7 DONG MANANGU ANYANG CITY KYUNG KI DO KOREA WEIGHT GR 12 BREAKING STRENGTH 1 000kg DIAMETER mm 4 3 ...

Страница 23: ...KYO DONG JUNG GU SEOUL KOREA WEIGHT GR M 7 2 G M BREAKING STRENGTH 110kg WIDTH mm 13 7 THREAD MATERIAL HIGH TENACITY POLYESTER YARN NAME AMANN SOHNE GMBH CO SUPPLIER ADDRESS INDUSTRIESTRASE 1 D 74391 ERLIGHEIM GERMANY DENIER 150D 2 250D 3 BREAKING STRENGTH 2 9kg 3 2kg WEIGHT GR M 0 05G 0 083G ...

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