DHV hangglider test flight report |
Type designation
|
Atos
|
Manufacturer
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Aeronautic Innovation Rühle GmbH (A.I.R. GmbH)
|
Holder of certification in Germany
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Aeronautic Innovation Rühle GmbH (A.I.R. GmbH)
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Type test reference no
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DHV 01-0347-99
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Classification
|
3 E
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Total weight in flight
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90 Kg - 150 Kg
|
Number of seats
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1
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Maximum Speed (VNE)
|
80 km/h
|
Winch towing
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Yes
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Towing by microlight
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Yes
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FEATURES
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In-flight trimming devices
|
flaps
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Type of uprights
|
profiled
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Type of A-frame base tube
|
speedbar
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Special features
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Rigid wing in carbon-construction; folding ribs; Flaps; Spoilercontrol activated via shiftable A-frame.
|
GROUND HANDLING AND TAKE-OFF
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Flaps 15 degrees
|
2
|
Static balance
|
slightly tailheavy
|
|
Aerodynamic balance
|
neutral
|
|
Take-off speed
|
low
|
|
STRAIGHT FLIGHT
|
Flaps 0 degrees
|
Flaps 70 degrees
|
3
|
Vmin (km/h)
|
|
30
|
|
Vmax (km/h)
|
|
>80
|
|
Control bar pressure at 60 km/h
|
low
|
low
|
|
Control bar pressure at 80 km/h
|
low-average
|
low-average
|
|
Directional stability (yawing)
|
no yawing
|
no yawing
|
|
HANDLING IN TURNS
|
|
|
2--3
|
Effort to enter turns
|
low
|
low
|
|
Effort to exit turns
|
low
|
low
|
|
Roll rate when increasing bank
|
average-long
|
average-long
|
|
Roll rate when reducing bank
|
average-long
|
average-long
|
|
Bank circling at V of min sink
|
slightly increasing
|
slightly increasing
|
|
STALL BEHAVIOUR
|
|
|
3
|
Straight flight, control bar slowly forward
|
stable deep-stall
|
stable deep-stall
|
|
Straight flight, control bar quickly forward
|
pitches down strongly
|
pitches down softly
|
|
In turn, control bar slowly forward
|
mush-turn
|
pitches down softly, mush-turn
|
|
In turn, control bar quickly forward
|
dives distinctly in direction of turn
|
pitches down softly, mush-turn
|
|
Provoked spin
|
no tendency to spin
|
no tendency to spin
|
|
LANDING
|
Flaps 70 degrees
|
2
|
Lenght of final glide
|
short
|
Point of flare
|
easy to find
|
V-tolerance to flare
|
average
|
Effort of flare
|
average
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ADDITIONAL SAFETY RELATED REMARKS
|
|
Spinning might be provocable in the extreme case and must be avoided. Introduction for set up and flying necessary.
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