U-turn Alpine peak 2 xs User manual

2011 by U-Turn GmbH, all right preserved. No part of this publication may be reproduced or developed further on in any way

without written approval of the U-Turn GmbH

Text: Stefan Preuß

Text and Graphics: Ernst Strobl

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 liabilty cases that derive from mistakable details. We pre-

serve the right to change this manual in any way to achieve technical improvements.

- Manual - Rev. 1.3

The new light weight-gliding with the PPN system

You`ve got the stu to y!

The U-Turn team would like to congratulate you on the purchase of your new U-Turn

paraliger. You have made an excellent choice. We wish you long an enjoyable

ights and many happy landings with your U-Turn ALPINE PEAK 2.

The research and Development team at U-Turn can proudly look back at many suc-

cessful years in the ight sport industry. Our own concepts not only meet but

exceed industry standards. The combination between the latest computer based

technology and the know-how of experienced test pilots and professional competi-

ton pilots provides an excellent basis for quality. We certainly keep our customer

need in mind, and always appreciate your input and constructive criticism. Should

any question occur, please don`t hesitate to ask your U-Turn dealer or the U-Turn

team.

In order to provice you with the latest information on technical development and

innovations at U-Turn, we ask you to complete the questionnaire attached. Please

mail it to the following address:

U-TURN GmbH

Paragliders and Kites

Im Neuneck 1

D-78609 Tuningen

Tel. +49(0)7464 9891280

Fax: +49(0)7464 98912828

Internet: www.u-turn.de

E-mail: [email protected]

Please read the entire handbook carefully before using yor U-Turn

ALPINE PEAK 2 for the rst time. We composed this handbook, in order

to make the handling of your new U-Turn ALPINE PEAK 2 as safe and

easy for you as possible. GG

Business Replay Card

U-TURN GmbH

Im Neuneck 1

78609 Tuningen

Germany

NAME:

FIRST NAME:

STEET:

ZIP CODE / CITY:

TELEPHONE:

E-MAIL:

PARAGLIDER TYPE:

SERIAL NUMBER:

Date of purchase:

Dealership:

Tested by:

Flying hours:

Paraglider since:

Miscellaneous:

Yes, I would like to get the newsletter by email.

...........................................................................................................

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Contents

Introduction..........................................................................................................................................

PPN Description...........................................................................................................................

Page 1

Page 3

Automatic ight stabilization / AFS...................................................................................... Page 4

New Features / Important - please read this...................................................................... Page 5

Material List................................................................................................................................... Page 5

Table of are loading.................................................................................................................... Page 5

Technical Data................................................................................. Page 6

Line code........................................................................................................................................ Page 10

Lineplan........................................................................................................................................... Page 11

General Description - ALPINE PEAK 2.......................................................................................... Page 1-2

Lines and risers............................................................................................................................. Page 12

Speed System / Suitable Harness........................................................................................... Page 12

Risers..................................................................................................................................... Page 12-13

Suitable Rescue System.................................................................................................. Page 14

Operation................................................................................................................................................ Page 14

Field of Operation........................................................................................................................ Page 14

Aerobatics....................................................................................................................................... Page 14

Motorised Paragliding................................................................................................................ Page 14

PreightCheck.............................................................................................................................. Page 14

Take o............................................................................................................................................ Page 15

Turning............................................................................................................................................. Page 15

Active Flying.................................................................................................................................. Page 15

Landing........................................................................................................................................... Page 16

Winching......................................................................................................................................... Page 16

Advance Handling............................................................................................................................... Page 16

Wingovers........................................................................................................................................ Page 17

Full Frontal...................................................................................................................................... Page 17

Deep Stall....................................................................................................................................... Page 17

Fullstall............................................................................................................................................ Page 17

Negative Turn................................................................................................................................ Page 17

Page 18

Page 19

How to avoid collapses- by Ernst Strobl...................................................................................

Page 19

Rapid Descent.............................................................................................................................

Page 19

Spiral Dive...........................................................................................................................

Page 19

“Big Ears”..............................................................................................................................

B-Stall....................................................................................................................................

Technial Data - Material Mix......................................................................................... Page 7

Instruction leaet for repairs and 2 annual check / Line order sheet Page 8-9

Maintenance and Care / Safety Advices and Liability.....................................................

Nature and environment friendly behavior / Removal..................................................

Page 20-21

Page 21

Introduction

U-Turn paragliders are in a class of their own. U-Turn doesn`t compromise on safety, and uses the best

quality components and hallmark ight characteristics. Congratulation on your purchase of a U-Turn

glider, as it is the brand for those who appreciate the dierence.

The laws of physics are well dened. We aspire to achieve the possbile within the framework of its laws.

We admit this is ambitious but you will always nd U-Turn at the cutting edge of technology. As Oscar

Wilde once said in this very British understatement:“His taste is very basics; only always the best is good

enough.” The U-Turn team embodies this attitude; “We always want to deliver the best possible glider.”

Nothing more and most cost certainly nothing less.

U-Turn sta takes notice of its customer wishes, so we appreciate any comments or feedback!

Please feel free to contact your competence center or U-Turn directly for any advice or direction.

General Description ALPINE PEAK 2

The new light weight-gliding with the PPN system

The new ALPINE PEAK 2 of U-Turn represents a new ease: easy grounghandling, even easier to start and

best glide. Its predecessor set already milestones and now the follow up is proudly presenting latest U-

Turn technology.

In datail: The ALPINE PEAK 2 got the PPN-system (Precision-Prole-Nose) of U-Turn. Instead of the heavy

nose mylar plastic reinforcement rods of newest generation are used. The wing weight is reduced sig-

nicant by this. The thin lines could be used again despite the increased performance, so that air resist-

ance in ight is minimal too. As a result there is an extraordinary glide ratio that is even better than the

already outstanding performance of the predecessor.

Thanks to the mainly used type 36 and 26 fabric the wing is already extreme light. Some extra weight

could be saved by the abdication of the nose mylar. Even the V-ribs (down to the line attachments) and

the V-tapes are made of type 27 fabric. The risers are made of 12 mm kevlar band. The Liros lines are the

optimal mix between air resistance and strength. ( more details in technical data)

The ying characteristic of the ALPINE PEAK 2 is still uncomplicated and very forgiving. The canopy

glides accelerated very well and climbs unbelievable. Here the interaction of PPN and AFS combined

with the safe and performing prole is obvious. The ALPINE PEAK 2 stands thanks to its outclassing

technical U-Turn features more than ever for the safe fun in ight. The AFS of latest generation eects in

all cells and prevents most of the unpleasant side collapses in the beginning. The performance is com-

pared to the EMOTION 2 where the wing derivates from slightly better. The ALPINE PEAK 2 is a bit faster

a bit more direct and climbs slightly better thermalling- not surprising because of the reduced mass and

its eects.

Page 1

General Description ALPINE PEAK 2

Obvious is the eect of the PPN system in specially doing ground handling and inating the wing. On

the ground the wing lets the pilot get a good sense for the movement of the wing. The lling behavior

is exemplary. Overshooting, even when big mistakes are done, not worth so speak about. On takeo the

whole package is unbelievable tolerant when pulling to hard on the A´s. “The ALPINE PEAK 2 is a real

machine” abstracts chief designer Ernst Strobl.

All in all the ALPINE PEAK 2 is the optimum between performance and safety as well as light weight and

durability, so he is the perfect partner to pilots who like to do hike and y. And to all who want a very

light wing without trade o in performance and comfort.

The ALPINE PEAK 2 is available in 4 sizes and in attractive colors.

Page 2

Page 3

PPN description

PPN technology provides unprecedented stability, superior take of behavior, and ideal ying qualities.

For several years, now synthetic rods have served as a replacement to the Mylar panels in the cell walls

of the wing at the leading edge. This reinforce the shape of the nose. U-Turn has taken this a step further

in teaming this technology up with AFS and work togehter in concert.

The synthetic rods in the seams of the leading edge sustain the shape of the nose, optimizing the airow

along the prole. Even under extreme ying conditions the small PPN rods keep the cells at the leading

edge open in a way Mylar would not be able to do. These characteristics give the glider an unmatched

stability. Internal pressure is maintained noticeably longer and the shape of the nose is held up. Even

if the internal pressure diminishes, the AFS kicks in by equalizing with the providing the necessary sail

tension. The complimentary interaction of these two systems provide this line of gliders with an unpar-

alleled collapse-resistance.

Unlike Mylar, if handled carefully PPN technology will retain the shape of the nose for the entire lifetime

of the glider. In order to provide the greatest possible protection when folding the glider, U-Turn recom-

mends the optional U-Turn Tubebag. This inner packsack enables you to fold and store the

ALPINE PEAK 2 with ease in accordion fold, even on windy days and/or by yourself. The Tubebag pre-

serves the excellent take-o and ight qualities of the glider, thus favorably inuencing its resale value.

PPN technology also means that the canopy is lighter weight than with Mylar reinforcement. This re-

duced canopy weight made possible by the PPN technology increases the performance and improves

the handling of the glilder. The Tubebag itself is produced with the workmanship you would expect

from U-Turn and lives up to the highest demands in use. It features many functional details and ensures

that the ALPINE PEAK 2 preserves the launch and ight qualities for many years to come - an advantage

that can increase the resale value.The glider has become lighter ever since abandoning the use of Mylar

in the cell openings and replacing them with synthetic rods. Its handling advantages and increased

performance can be also attributed to PPN technology.

The U-Turn ALPINE PEAK 2 has become more than ever an uncomplicated wing with a broad margin of

leeway since all the aforementioned, new technology has been introduced. It is forgiving and good na-

tured in behavior. The ALPINE PEAK 2 is suitable for training and at the same time an agile glider which

dares to climb thermals. It suits rst class pilots who refuse to make compromises on passive security

during high performance ying. Of course the ALPINE PEAK 2 is tted with top shelf Liros lines.

Page 4

Automatic ight stabilization / AFS

With the AFS-system U-Turn provides an innovative feature. To y safely means to y actively - the sys-

tem employed on the U-Turn ALPINE PEAK 2 allows this to happen automatically to a certain level. The

secret of the AFS-system is based on a pre-tensioning principle. In the are of the brake attachment

points the undersurface is pre-tensioned. Whilst the sail is gliding through smooth air, there is enough

pressure inside and the pre-tensioning is neutralized: The eect of internal pressure is more powerful

than the pre-tensioning and the trailing edge stays aerodynamically perfect in the air like a conven-

tional glider. When entering turbulent air with the ALPINE PEAK 2 the system adjusts immediately, even

the slightest drop of internal pressure allows the system to react. The pre-tensioning at the trailing edge

is eectively like pulling the brakes.

Ernst Strobl recalls the ne-tuning: “Our computer-based calculations were impressivel conrmed dur-

ing our tests”. The system is extremely responsive so that a top-qualtiy manufacturing is key. U-Turn

Cofounder Thomas Vosseler adds: “We guarantee a strongly supervised manufacturing process.”

The AFS works like the Electronic Stability Programs known in the automotive industry, you could call

it an “ESP for the air”. It intervenes for the benet of safety when an inexperienced pilot, or a pilot in

trouble, enters turbulence and is unable to y actively. Experienced ight-instructors conrm: “This is a

major step as far as safety is concerned. The main reason for accidents, the full collapses of the canopy,

is minimized dramactically”. Even without AFS the U-Turn ALPINE PEAK 2 would be a very safe glider says

Strobl. Due to the extremely pulled down wingtips and the resulting spread of the wingloading the U-

Turn ALPINE PEAK 2 has far more than average resistance to collapses. The U-Turn ALPINE PEAK 2 gliders

stably ahead even after an accelerated asymmetric collapse, a situation that may happen after leaving

a thermal, even with 50% of the wing collapsed. This is unprecedented. The computer optimised wing

layout leads to very good thermal lift and maximizes the stall characteristics, both improving safety.

New Features

Using the Easy-Fix you can secure the risers when packing the glider and eliminating the tangling of

lines in the risers. Every time you get to launch leave out and your lay out is hassle free, when folding

your glider at the end of each ight: you will love Easy-Fix. Last but not least are the Dirt-Outs which ease

the eort of removing dirt or leave out of the canopy.

In the literal sense, the U-Turn ALPINE PEAK 2 is not only setting the bar as far as safety is concerned, it is

introducing a paradigm shift in glider design. Altough the whole design process was primarily focussed

on safety, Ernst Strobl managed to design a piece of sports equipment, whose characteristics guarantee

untroubled fun.

Page 5

Important: Having the necessary level of experience can never substitute the need to familiarize your-

self with the glider before leaving the ground. Please carefully read the handbook and take advantage

of the support from your ight school, or U-Turn directly for that matter.

Please always remember that aviation can be potentially dangerous and your safety is in your own

hands. We strongly encourage you to y conservatively; this includes the judgement concerning condi-

tions as well as the choice you make in ight.

Materiallist

Table of area loading

Marking of components Material / product name technical data / Dimension

weight / strength Producer

Attachement loops Nylon 7,2 g/m / Breaking load 110 kg / 13 mm spreads Kolon Industrial Co, Korea

Accelerator lines Nylon Ø 4,0 mm = Breaking load 350 daN

Accelerator - brakeroll GIN Rolle Gin Glider Korea

Accelerator lock Brummelhook Gin Glider Korea

brake attachements Nylon 7,2g/m Breaking load 110 kg / 13mm spreads Kolon Industrial Co, Korea

brake handhold High Tanacity Poliester Yam 22mm 25 g/m / 1000 kg Breaking load Techni Sangles, France

brake handhold attachement High Tanacity Poliester Yam 22mm 25 g/m / 1000 kg Breaking load Techni Sangles, France

brake handhold fixation Magnet Gin Glider Korea

break main line 2,3 mm Ø Dynema Lines 2,3 mm = 250 daN Gin Teijin Korea

Lines DC60, DSL 70,

PSSL 120, 160, 200, 275 Liros Lines

Rosenberger Tauwerke

Gin Gliders Korea

belt redirection Stainless Steel 8g/Ø 3,8 mm / Breaking load 800kg Ansung Precision CO. Korea

lines lock Stainless Steel 12g / Ø

4,3 mm / Breaking load 1000kg Ansung Precision CO. Korea

Top sail Skytex 36 / Skytex 27 36 g/m² / 27g/m² (PA 6,6 HT) Porcher Marine, NCV, France

V-Tape Skytex 27 27 g/m² (PA 6,6 HAT) Paratex, Germany

Nose reinforcement P 260 283 g/m² Dimension-Polyant, Germany

Rips, Profile Skytex 36 / Skytex 27 36 g/m² / 27g/m² (PA 6,6 HT) Paratex, Korea

Riser High Tanacity Poliester Yam 22mm 25 g/m / 1000 kg Breaking load Techni Sangles, France

Undersail Skytex 27 27 g/m² (PA 6,6 HT) Porcher Marine, NCV, France

Reinforcement pivot point B/C/D W 420 180 g/m² Porcher Marine, NCV, France

sewing thread conopy High Tanacity Poliester Yam 150 D/2 0,05 g/m² / 2,9 kg Breaking load Amann & Söhne GmbH, Germany

sewing thread lines High Tanacity Poliester Yam 150 D/3 0,083 g/m² / 3,2 kg Breaking load Amann & Söhne GmbH, Germany

Material List

Startgewicht /Take off weight (kg) 55 60 65 70 75 80 85 90 95 100 105 110 115 120 125 130

Alpine Peak 2 XS 2,3 2,5 2,7 2,9 3,1 3,3

Alpine Peak 2 S 2,7 2,9 3,1 3,3 3,5

Alpine Peak 2 M 3,0 3,2 3,3 3,5 3,8 3,9

Alpine Peak 2 L 3,3 3,4 3,6 3,8 3,9 4,1 4,3

Flächenbelastungstabelle / Table of area loading

Technical Data

Page 6

You will nd further details regarding the construction and measurement of the U-Turn EMOTION 2 in the“Typenkennblatt”or, in case of equip-

ment with example registration, in the “Luftsportgerätekennblatt” in acoordance with paragraph four of the “Luftverkehrszulassung”. (See atta-

chements) You can nd possible technical changes in the attachement to this manual.

Important: any self inicted changes to the construction that go beyond the allowed adjustment options, void the operating license and are

potentially life threatening. Use of this paraglider is at your own risk. The producer and distributor cannot be held liable.

XS S M L

Take off weight 55 - 80 kg 70 - 90 kg 85 - 110 kg 100 - 130 kg

Wing area flat 24 m² 26 m² 28,5 m² 31,0 m²

Wing area project 21,85 m² 23,63 m² 25,63 m² 27,65 m²

Wing span flat 11,0 m 11,44 m 11,91 m 12,38 m

Wing span project 9,3 m 9,67 m 10,07 m 10,46 m

Aspect ratio flat 4,94 4,94 4,94 4,94

Aspect ratio flat project 3,95 3,95 3,95 3,95

Number of chambers 41 41 41 41

V-Trimm ~38-39 Km/h ~38-39 Km/h ~38-39 Km/h ~38-39 Km/h

V-Min ~ 22 Km/h ~ 22 Km/h ~ 21 Km/h ~ 20 Km/h

V-Max ~ 48 Km/h ~ 48 Km/h ~ 48 Km/h ~ 48 Km/h

Features AFS,

Dirt Out, PPN,

AFS,

Dirt Out, PPN,

AFS,

Dirt Out, PPN,

AFS,

Dirt Out, PPN,

Tension Stripes Tension Stripes Tension Stripes Tension Stripes

Number of risers 5 5 5 5

Number of lines storeys 3 3 3 3

Accelerator / Trimmer Accelerator Accelerator Accelerator Accelerator

Glider weight 3,7 kg 3,9 kg 4,1 kg 4,3 kg

Certification DHV DHV 1 DHV 1 DHV 1 DHV 1

mistakes, misprints and changes reserved.

Reproduction, even partly, only with written permission of U-Turn.

This manual suits for next models

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