Niviuk DOBERMANN User Manual

Niviuk DOBERMANN User Manual Manual pdf 11 page image

11distance is required to achieve the desired forward lift speed of 25km/h and take off. The DOBERMANN has been designed to easily andefficiently inflate whilst providing exceptional directional stability withoutpitching or hanging back behind the pilot.Excessive amounts of energy are not required when taking off with theKougar, simply set the trimmers to the correct positions (see 2.7) andgently lift the risers whilst gaining forward momentum. Taking off in nilwind conditions is not a problem for the DOBERMANN.3.6 LANDINGThe new Reflex System Profile (RSP) with the trimmers closed almostmorphs the DOBERMANN into a free flight wing allowing a slowapproach speed and the flight to end with the perfect landing. Large areasand long runs are no longer required. It must be remember that in nil windconditions the forward ground speed encountered may be significant andduring landing must be decreased by using the brakes and if necessaryby a longer run off as the pilot makes contact with the ground.When landing in moderate wind conditions, the ground speed is reducedso simple and progressive application of the brakes will be enough for aperfect landing. Landing with open or half open trimmers is possible, butit will be necessary to balance the application of the brakes to the positionof the trimmers and the forward ground speed being experienced. Ofcourse open trimmers and an increase in forward ground speed whenlanding may require a larger landing area as opposed to when thetrimmers are closed.The DOBERMANN very efficiently transforms forward speed into lift andinherently allows a wide margin for error either with or without wind.4. IN FLIGHTIt is important to stress that the reaction to the manoeuvres is different ineach wing size, and even the reactions and solutions to each manoeuvreare different on the same size wing when the overall loading (i.e. Pilot/harness Weight/ wing load).Having known the aforementioned facts, pilots will be able to facedifferent situations more appropriately. The greater the wing loading, thelesser the incidence rate; but the glider will react more abruptly.In terms of piloting the wing, the main toggles are more flexible andprogressive, enabling for better glider control without excessive effort.An additional toggle system, connected to the stabilizer, improves glidermanagement during accelerated flights and turns.The DOBERMANN can be steered with the trims opened while keepingthe profile stable. In other words; maintaining a high wing internalpressure with extraordinary leading edge rigidity at high speed. Theglider turns without losing its handling flexibility nor its stable flightcharacteristics.4.1 FLYING IN TURBULENCEThe DOBERMANN comfortably absorbs moderate turbulence in eithernormal or accelerated flight, minimising any bouncing effect which isoften experienced with other reflex profiles.Over handlingMost flying incidents are caused by incorrect actions of the pilot, whichchained one after another creates abnormal flying configurations (acascade of incidents). You must to remember that over handling the wingwill lead to critical levels of functioning. The DOBERMANN is designedalways to try to recover normal flight by itself, do not try to over handle it.Generally speaking, the reactions of the wing, which follow over handling,are neither due to the input made or the intensity, but the length of timethe pilot continues to over handle. You have to allow the profile to re-establish normal flight speed after any type of handling.