| DHV hangglider test flight report |
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FEATURES
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In-flight trimming devices
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flaps combined with elevator unit
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Type of uprights
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profiled
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Type of A-frame base tube
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speedbar
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Special features
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routine required
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GROUND HANDLING AND TAKE-OFF
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Flaps 15 degrees
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2--3
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Static balance
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very tailheavy
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Aerodynamic balance
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slightly tailheavy
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Take-off speed
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average
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STRAIGHT FLIGHT
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Flaps 0 degrees
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Flaps 70 degrees
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3
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Vmin (km/h)
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33
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29
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Vmax (km/h)
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>90
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85
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Control bar pressure at 60 km/h
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low
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low
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Control bar pressure at 80 km/h
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low
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average-high
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Directional stability (yawing)
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no yawing
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no yawing
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HANDLING IN TURNS
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2
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Effort to enter turns
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low
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low
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Effort to exit turns
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low
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low
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Roll rate when increasing bank
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long
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long
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Roll rate when reducing bank
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long
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long
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Bank circling at V of min sink
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slightly increasing
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neutral
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STALL BEHAVIOUR
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3
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Straight flight, control bar slowly forward
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distinctly warning by bar pressure stall nearly not possible
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distinctly warning by bar pressure stall nearly not possible
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Straight flight, control bar quickly forward
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pitches down
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pitches down
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In turn, control bar slowly forward
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mush-turn
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mush-turn
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In turn, control bar quickly forward
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dives in direction of turn
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dives in direction of turn
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Provoked spin
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no tendency to spin
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no tendency to spin
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LANDING
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Flaps 70 degrees
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2
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Lenght of final glide
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average
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Point of flare
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easy to find
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V-tolerance to flare
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big
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Effort of flare
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low
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ADDITIONAL SAFETY RELATED REMARKS
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