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Table of Contents
Summary of Contents for AirCross U Prime
- Page 1 Manual Version 1.2 28.02.2012...
- Page 2 It should not be used as a "how to fly" manual. This owner's manual is subject to changes without prior notice. Please check www.aircross.eu for the latest information regarding the U Prime and other Aircross products. Trademark: Aircross®...
- Page 3 A thorough knowledge of your equipment will keep you safe and enable you to maximize your full potential. Happy Flights and Safe Landings, Your Aircross Team Text: Konrad Görg Grafik: Julien Montet...
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Page 4: Table Of Contents
Registration - 6 ∑ Technical Data - 6 ∑ Personal Request - 6 ∑ Description - 7 ∑ The U Prime in detail - 7 ∑ The canopy - 7 ∑ The line system - 8 ∑ The risers - 8 ∑... - Page 5 Canopy buildup: glider information and certification sticker leading edge top surface bottom surface stabilo line stabilo trailing edge main brake line risers with rapid links main mallion Text: Konrad Görg Grafik: Julien Montet Layout: Tobias May...
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Page 6: Registration
Registration: Aircross is very interested to keep you as the customer informed over new technical developments and information concerning your U Prime. So please register at our e-mail adress: info@aircross.eu We kindly ask you to give us your adress, telephone number, glider model, and serial number. -
Page 7: Description
Description: The U Prime is a perfect beginner and school glider and offers a great passive safety with very forgiving flying characteristics combined with great flight performance and glide ratio. Caused by it´s easy and reliable flying behaviour the U Prime is suitable for a big pilot´s target group. -
Page 8: The Linesystem
The linesystem: The lines of the U Prime are made of strong and stretch resistant Liros PPSL, Teijin Aramid and Liros DSL. The lines of each level have specific colors to help you to sort the lines and for better orientation... -
Page 9: Overview Risers And Speed System
overview risers and speed system press button top pulley brummelhook risers speedsystem traction bottom pulley mounting point main carabiner harness stirrup pulley Text: Konrad Görg Grafik: Julien Montet Layout: Tobias May... -
Page 10: Suitable Harnesses
The distance between left and right main carabiner should be between 45 and 60cm, depending on the size of the pilot and the type of the harness. The Aircross test crew prefers flying with low hang point and wide distance between main carabiners, to get a maximum of feedback from the wing. -
Page 11: Adjustment Possibilities
Adjustment possibilities: All line and riser length of the U Prime were factory checked with a high precision. In a multilevel Qualitycheck each glider is checked again before shipment. There is no need for you to trim your glider. Regarding flight performance, handling and safety your U Prime is optimally trimmed. - Page 12 (above your shoulders), or adjust the brakes to control in low arm position under the breast. In every case the brakelength must be long enough, to bring the U Prime into a landing stall. This can also be done via dynamic stall.
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Page 13: Speed System
This Manual deals only with the basic and product-specific issues of flight technique . It can not and should not replace a flight training in a approved flight school! Such training is essential for the safe piloting of a paraglider, so also for flying the U Prime. Preflight check and launch preparations: We recommend that you first practice inflating your glider on a small training hill or flat ground. -
Page 14: Start
Light or Nil Wind Launch The U Prime inflates steadily in nil-wind conditions. Simply guide the glider with the A-risers, keeping your arms bent and hands at the level of the shoulders. Allow your arms to rise in an arc and wait for the glider to inflate and come above your head do not push the risers. -
Page 15: Towing
Flight technique Speed control with the brakes The speed range of the U Prime is relatively high. The right speed for each flight situation is important for performance and safety. You get best glide ratio (in calm air) when you don´t break at all . You get the best sink rate when you break both sides 15%. -
Page 16: Speedcontrol Via Speedsystem
Turns: The U Prime reacts directly on the brakes and has a high agility. For flat turns the pilot should also pull the outside brake a little break. For narrow and steep curves pull the inside break at full trim speed. -
Page 17: Thermalling
7 cm to be prapared for any disbehavior of the canopy. The U Prime has a high internal pressure, resistance to tucking and for it’s class, a great level of passive safety even when you fly accellerated. -
Page 18: Spiral Dive
The spiral dive should be considered an extreme manoeuvre. Practice spiralling with caution and lesser sink rates to get a feel for the U Prime's behaviour. Weight shift and pull the brake on one side gradually. Let it accelerate for two turns and you will enter the spiral dive. -
Page 19: B-Line Stall
The glider can be steered while in big ears using weight shift alone.When you release the lines, the U Prime ears will come out on their own, or may require a short pump. Release the big ears at least 100m above the ground. -
Page 20: Landing
The danger of overcorrecting and overreacting exists during all extreme flight manoeuvres. Thus, any corrective action must be gentle and steady and done with feel ! Aircross recommends: FIRST PRACTICE EXTREME FLYIG MANOEUVRES WITH AN INSTRUCTOR DURING A... -
Page 21: Acro Flying
In the event of encountering strong turbulence and suffering an asymmetric deflation (collapse on one side), the U Prime will have a tendency to re-inflate by itself, but the wing will turn towards the collapsed side. This might be unwanted close to the ground or other gliders. -
Page 22: Front Stall
A wet canopy, or temperatures below zero centigrades (0°C) may as well cause a stable parachutal stall. The U Prime generally is self recovering from parachutal stall. If the canopy remains in a parachutal stall, it is sufficient to gently push both A risers forward or to push the accelerator. -
Page 23: Full Stall
In case the spin is allowed to develop for some time, the U Prime surges far forward on one side and a dynamic asymmetric collapse or a line over can occur. If so, brake gently to stop canopy surging and correct any collapse: See ”collapses”. -
Page 24: Steering Without Brakes
Steering without brakes: If a brake is not operational for some reason, you can steer the U Prime with the D- Risers. Add steering input by weight-shifting in your harness. Be careful not to steer too much with the riser to avoid any possibility of a spin. -
Page 25: Maintenance
Disposal: The synthetic materials used in a paraglider need a professional disposal. Please send disused canopies back to AIRCROSS. We will demount and dispose them. In conclusion: The U FLY is at the forefront of modern paraglider design. You will enjoy many safe years of flying with your U FLY if you look after it correctly and adopt a mature and responsible approach to the demands and dangers flying can pose.
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