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B-Stall

Big Ears

The B-Stall begins with a symmetrical continuous pulling of the
B-risers. The aerofoil is deformed and the glider loses forward
speed. 
The surface is reduced and the sink rate can be increased by pulling
down further on the B-risers. Recovery involves a quick, continuous
and symmetrical releas of the B-risers.

The one or two outer A lines are pulled on both sides, causing the
tips to collapse, allowing the glider to achieve a 3-4 m/sec sink
rate. The glider remains controllable through braking and weight
shift. Releasing the A lines allows the collapsed cells to open by
themselves. If this does not happen, reinflation can be helped
with the brakes.

WARNING: Never use Big Ears and a Steep Spiral together. You
might overload glider, pilot and equipment.

Full Stalls and Spins should be avoided, as incorrect recovery with any
paraglider can be dangerous. Descent manoeuvres should be practi-
sed in a safe manner so that proper technique can be applied in extre-
me situations.

Seite 30

Spiral Dive

It is very easy to begin a Spiral Dive with the FATWILLIE. The Spiral
Dive results in very high sink rates. For its proper use in extreme
situations, the Spiral Dive should be pratised in easy conditions.
However:

• 

usually the steering pressure is markedly higher,

• 

centrifugal forces can be very high, due to the higher wing
loading and higher speed,

it is possible, that the passenger will not be able to bear the
centrifugal forces as well as the pilot.

Summary of Contents for AFS

Page 1: ...rn GmbH Text and Graphics Ernst Strobl Stefan Preuß EWS All technical details in this manual have been carefully checked by U TURN However we like to mention that we don t take any liability for possible mistakes neither in legal responsibility nor in liability cases that derive from mistakable details We preserve the right to change this manu al in any way to achieve technical improvements Februa...

Page 2: ...r our work therefore we like to get your suggestions and critique Should there be any open questions please feel free to contact your U TURN dealership or our company We are glad to assist you in any possible way To keep you in the loop of information about the latest techni cal improvements and innovations about U TURN products we ask you to fill in the questionnaire and send it back to U TURN Gm...

Page 3: ...Answer sheet Name First name Address Telephone Nr E Mail U Turn U2 Serial Nr Date of purchase Dealership Tested by Paraglider since Flying hours Club ...

Page 4: ...Glider 14 Flight 15 Landing 15 16 After The Landing 16 Technical Specifications 17 18 Suspension System Of The U2 19 AFS system and new features 10 11 Lines 19 Risers 20 Unaccelerated State 20 Accelerated State 20 The Spreader Bars 21 Trimmers 21 General Aspects Of Tandem Flying 10 Introduction 9 Technical Description Of The U2 16 Contents ...

Page 5: ...t Check 23 24 Clip In To The Spreader Bars 24 The Tandem Safety System 25 Takeoff 25 Turning 26 Thermals And Turbulence 26 Landing 27 Towing 27 Wingover 28 Front Tuck 28 Deep Stall 29 Full Stall 29 Negative Turn Spin 29 Extreme Manoeuvres 28 Behavior In Extreme Flying conditions 28 Technical Description Of The U2 9 Contents ...

Page 6: ... 30 Big Ears 31 B Stall 31 Spiral Dive 30 Manoeuvres For Rapid Loss Of Altitude 30 Maintenance And Repairs 32 33 Some Closing Words 33 U2 Assembly drawing 34 DHV Luftsportgeräte Kennblatt 35 36 DHV Musterzulassung 39 40 Anhang Emergency Steering 30 Contents ...

Page 7: ...but we are convinced There is not only an existing market of those who appreciate quality at reasonable prices this market is growing strongly Our gliders are availa ble only at selected flight academies that provide outstanding competence high quality service and tremendous customer care Products designed by pilots for pilots with this basic taste The best This is U Turn s story Test our newest g...

Page 8: ...em to react Dozens of computer based calculations with high end software from the aviation industry allowed the break through to be achieved A special production process around the brake attachment points leads to the desired effect Whilst the canopy is gliding through smooth air and there is enough pressure inside the pre tensioning is neutralised and the trai ling edge stays aerodynamically perf...

Page 9: ...lider providing the new system is called BODY GUARD a DHV 1 glider that will set fantastic benchmarks The BODY GUARD is easily to inflate in all kinds of wind there is no need for pul ling the A risers or other tricks and it is impossible for the canopy to beco me stuck before the overhead position Inflation is easy even for begin ners and due to the AFS System the canopy sits right above the pilo...

Page 10: ...tatutes effeective in your country or the country you are flying Be aware that the first flight especially from a high mountain is a par ticularly exciting experience for every passenger IN GENERAL Do not feel under pressure or be in a rush to fly During the ride to the launch site you should be calm and confident to promote confidence in the passenger Explain the weather conditions tell about fli...

Page 11: ...staclefree You have to consider the possibility of a longer run off and limited correction possiblities For the takeoff run the following calls are arranged go better 3 2 1 go run stop right left With the call go the passenger should help to pull the glider up In case of a launch stop the pilot calls stop Corrections of direction are done by announcing the change of direction Agree upon the direct...

Page 12: ...y side a in line A positive aspect of this method is that the passenger does not swing forward During acceleration he can more easily be pushed in the right direction Also an additional nudge with the knee can prevent him from sitting down too early b side by side With this method you have better running possibilities and more room to move For a reverse launch this position is also favorable A dis...

Page 13: ...wn harness Please always be aware that the turning circle of a biplace needs more room steering is slower than with your familiar solo glider and generally needs stronger steering How ever handling can be decisevely impro ved by weight shifting When you sit behind your passenger you cannot look in his eyes So talk with your passenger to encourage him and to judge how he is feeling Advise the passe...

Page 14: ... position Then then get ready to start running It is your responsibility to check the passenger s position For a safe easy landing make the final approach with good speed and apply the brakes gradually and firmly The perfectly executed landing will be slow and gentle Offer the passenger the opportunity to describe his experiences or to ask questions The profile of U2 has been specially developed b...

Page 15: ...al Specifications Minimum sink glide ratio Our products belong in each performance class to the best ones in the market We want you to forget the adds with the fantastic glide ratio declarations go out Try and compare ...

Page 16: ... prevent slipping of the lines The main brake lines go thorough pullies at the D risers They are marked with a black dot at the point where the brake handle is fixed This adjustment allows enough travel in extreme flight situa tions and for landing and should not be changed Seite 18 Technische Daten More construction details including line lengths of the U Turn FAT WILLIE can be obtained from the ...

Page 17: ...ers are differently coloured to guarantee clear identifi cation during launch and fast descents with B Stall Additionally to ease B Stalls the B riser is made longer and features a pulley system Unaccelerated State Accelerated State ...

Page 18: ... to the C D risers The Trimmers adjust the trim speed Slightly opening the trimmers eases takeoff under bad conditions If you fly the U2 at the lower load limit it is also recommended to slight ly open the trimmers during takeoff and flight Handling and behavior in the turn is positively influenced by a slightly higher trim speed The U2 is designed to retain optimum stability at a wide range of sp...

Page 19: ...2 please contact your dealer or U Turn Carrying a rescue system is not only mandatory it is also extremely dan gerous to fly without it When you choose a safety system make sure that it is certified and sui table for the planned takeoff weight For example the U Turn Protekt Bi The safety system should be moun ted to the harness of the pilot where an accidental deployment by pilot or passenger can ...

Page 20: ...ment must be certified specially for biplace flying This is necessary for pilot passenger harness safety system and tan dem suspension As for any aircraft a pre flight check is required for the U Turn U2 Tandem gliders are often used by different pilots if you are not the only one who uses the glider please perform the check thoroughly If you let someone else use the glider please remind him to do...

Page 21: ... equipped with a loop for the pilot A two loops for the glider risers B C and two loops for the passenger D E The pilot always clips himself in loop A For passen gers with normal weight the glider riser is cliped in loop C for light pas sengers loop B is used Loop E is for shorter passengers loop D for tal ler passengers Clip in symmetrically The compulsory biplace safety system has to be mounted ...

Page 22: ... in both yourself and the passenger turn to face the canopy at the same time lifting one set of risers over your head The passenger is now standing beside you still facing for ward Inflate the glider with a steady pull on the A risers and as it comes overhead turn and begin your takeoff run Note as with the front launch use only the inner A risers in stronger winds NOTE Remember the care and assis...

Page 23: ...the glider Thermals And Turbulence The U Turn U2 is easy to land While pointing into the wind the pilot should fly the wing fast until he is at 2 m above the ground at which point he should apply both brakes evenly and completely When landing in stronger wind less brake is required Landing from steep turns must be avoided due to the risk of strong pendulum Landing Towing with U2 is allowed as long...

Page 24: ...ns is best taught in SIV courses Every pilot who flys in turbulences or makes a mistake can find himself in these flying conditions All extreme manoeuvres and flight conditions that are described here are dangerous if they are excecuted without adequate knowledge without enough altitude and or without proper instruction Wrong excecution of the described manoeuvres and flight conditions can risk yo...

Page 25: ...ke on one side a spin can begin To recover from the spin the lower brake has to be released to let the gli der accelerate The U2 is characterised by a very high stablility Nevertheless as can happen to all gliders stronger turbulence can lead to a canopy deflation Usually this is not a difficult situation as the canopy inflates quickly and reliably You can support reinflation bycorrecting on the o...

Page 26: ...nflation can be helped with the brakes WARNING Never use Big Ears and a Steep Spiral together You might overload glider pilot and equipment Full Stalls and Spins should be avoided as incorrect recovery with any paraglider can be dangerous Descent manoeuvres should be practi sed in a safe manner so that proper technique can be applied in extre me situations Seite 30 Spiral Dive It is very easy to b...

Page 27: ...d extensively in rough conditions or terrain Repairs should be performed by authori sed personnel only Maintenance and Repairs The U2 leads the way in paragliding research and development We wish you many long and safe flights on your U Turn U2 Remember to treat your canopy properly and always fly with respect for conditions and your capabilities Remember that all flying is potentially dangerous a...

Page 28: ...Seite 34 U2 Assembly drawing ...

Page 29: ...e Packsack kg 2 Zulässiges Startgewicht minimal kg maximal kg 3 Anzahl der Sitze 4 Klasse 1 2 5 Gurtzeugbeschränkungs 6 Fußbeschleuniger 7 Trimmer von Hand zu bedienen 8 Zugelassen für Windenschlepp 9 Tragegurtlängen mm Tragegurt A Tragegurt B Tragegurt C Tragegurt D U2 U Turn GmbH Telefon 49 7720807111 Fax 49 7720807112 8 8 kg 140 kg 210 kg 2 nein ja ja normal 450 mm normal 435 mm normal 420 mm n...

Page 30: ...0 8520 5 6 8430 8205 8370 8500 8620 6 7 8515 8255 8465 8590 8770 7 8 8515 8250 8450 8580 8835 8 9 8630 8360 8555 8690 9050 9 10 8695 8415 8600 8755 9265 10 11 8680 8405 8580 8735 9415 11 12 8780 8505 8680 8835 9675 12 13 10065 13 11 Sonstige Besonderheiten III Betriebsanweisung in der Fassung vom Bearbeitungsvermerk DHV Kennblatt geprüft am von 10 01 2005 Ort Datum Stempel und Unterschrift des Her...

Page 31: ...ora Material Mantel Mantel Polyester Mantel Polyester Mantel Polyester Mantel Polyester Mantel Polyester Mantel Polyester Längenbezogene Masse der Leine 4 92 g m 4 48 g m 3 56 g m 2 96 g m 1 62 g m 1 177 g m Längenbezogene Masse des Kerns DHV Leinenfestigkeit nach 5000 Knickungen 181 9 daN 112 daN 112 daN 99 daN 60 daN 47 daN 2 Festigkeitsnachweis 2 1 Nachweis der Festigkeit der Stammleinen Stamml...

Page 32: ...ufbau Zahl der Litzen Kern Zahl der Litzen Mantel Flecht und Schlaglänge Kern Flecht und Schlaglänge Mantel Schlichte und oder Ausrüstung Soweit bei anderen Parametern der Leine Streuungen auftreten sind die Toleranzen diese Streuungen auf einem gesonderten Blatt anzugeben Sachsenkam 10 01 2005 _____________________________ Ort Datum Stempel und Unterschrift Hersteller vom DHV auszufüllen Überprüf...

Page 33: ...Seite 39 DHV Musterzulassung ...

Page 34: ...Seite 40 DHV Musterzulassung ...

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