Schempp-Hirth Flugzeugbau Ventus-3T Sport, Руководство по эксплуатации самолета, Страница: 72 / 177

SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK
Ventus-3T „Sport“ FLIGHT MANUAL
April 2018 CS 22
Revision – 4.5.1.1
4.5 Normal operating procedures and recommended speeds
4.5.1 Methods of launching
Aerotow
Maximum permitted towing speed:
V
T
= 180 km/h (97 kt, 112 mph)
For aerotow only the nose tow release must be used.
Hemp and nylon ropes of between 30 and 40 m length (98-131 ft) were tested.
Prior to take-off flap setting "-1" must be selected to improve the aileron´s
effectiveness and the trim must be set as follows:
Rearward c/g positions : Knob forward to first third of its travel
other c/g positions: Knob to the middle of its travel
As the tow rope tightens, apply the wheel brake gently (by actuating the
stick-mounted lever) to prevent the powered sailplane from overrunning the
rope.
In crosswind conditions the aileron control should be held towards the
downwind wing, i.e. in winds from the left the stick should be displaced to the
right in order to counteract the lift increase on the right wing generated by the
tug's prop wake, which the crosswind forces to drift to the right.
For intermediate to forward c/g positions the elevator should be neutral for the
ground run; in the case of rearward c/g positions it is recommended that down
elevator is applied until the tail lifts.