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Test report DHV 03 Windtech Zephyr M
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| Type |
Windtech Zephyr M |
| Certificate-No |
DHV GS-01-1721-07 |
| Holder of certificate |
NORTEC, S.L. - WINDTECH |
| Manufacturer |
NORTEC, S.L. - WINDTECH |
| Classification |
1-2 GH |
| Winch tow |
Yes |
| Number of seats min / max |
1 / 1 |
| Accelerator? |
Yes |
| Trimmers? |
No |
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Behaviour at min weight in flight(90 Kg) |
Behaviour at max weight in flight(110 Kg) |
| Take off |
1 |
1 |
| Inflation |
evenly, immediately |
evenly, immediately |
| Rising behaviour |
immediately comes over pilot |
immediately comes over pilot |
| Take off speed |
average |
average |
| Take off handling |
easy |
easy |
| Straight flight |
1 |
1 |
| Roll damping |
average |
average |
| Turn handling |
1-2 |
1-2 |
| Spin tendency |
slight |
slight |
| Control travel |
average |
average |
| Agility |
average |
average |
| Symmetric stall |
1-2 |
1-2 |
| Deep-stall limit |
average 60 cm - 75 cm |
average 60 cm - 75 cm |
| Full stall limit |
average 65 cm - 80 cm |
average 65 cm - 80 cm |
| Increase in steering power |
high |
high |
| Front collapse |
1 |
1 |
| Pre-acceleration |
slight |
slight |
| Opening behaviour |
spontaneous, quickly |
spontaneous, quickly |
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| Asymmetric collapse |
1 |
1 |
| Turn tendency |
< 90 degrees |
90 - 180 degrees |
| Change of course |
< 90 degrees |
90 - 180 degrees |
| Rate of turn |
average |
slight |
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with deceleration |
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| Max. roll/pitch angle |
less than 45 degrees |
less than 45 degrees |
| Loss of altitude |
slight |
average |
| Stabilization |
spontaneous |
spontaneous |
| Opening behaviour |
spontaneous |
spontaneous |
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| Countersteering an asymmetric collapse |
1-2 |
1-2 |
| Stabilization |
countersteering easy |
countersteering easy |
| Control travel |
average |
average |
| Control pressure increase |
average |
average |
| Turn in opposite direction |
easy, no tendency to stall |
easy, no tendency to stall |
| Opening behaviour |
spontaneous, delayed |
spontaneous, delayed |
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| Full stall, symm. exit |
1-2 |
1-2 |
| Spin out of straight flight |
1 |
1-2 |
| Spin out of turn |
1 |
1-2 |
| Spiral dive |
1-2 |
1-2 |
| Entry |
easy |
easy |
| Spin tendency |
slight |
slight |
| Exit |
turn continues through < 180 degrees |
turn continues through < 180 degrees |
| Sink rate after 720 °[m/s] |
9 |
9 |
| B-line stall |
1-2 |
1-2 |
| Entry |
easy |
easy |
| Exit |
delayed acceleration < 4 sec |
delayed acceleration < 4 sec |
| Big ears |
1 |
1 |
| Entry |
easy |
easy |
| Recovery |
spontaneous, quickly |
spontaneous, quickly |
| Landing |
1 |
1 |
| Landing behaviour |
easy |
easy |
| Front collapse (accelerated) |
1-2 |
1-2 |
| Pre-acceleration |
slight |
slight |
| Opening behaviour |
spontaneous, delayed |
spontaneous, delayed |
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| Asymmetric collapse (accelerated) |
1-2 |
1-2 |
| Turn tendency |
90 - 180 degrees |
90 - 180 degrees |
| Change of course |
< 90 degrees |
90 - 180 degrees |
| Rate of turn |
average |
average |
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with deceleration |
with deceleration |
| Max. roll/pitch angle |
less than 45 degrees |
less than 45 degrees |
| Loss of altitude |
average |
average |
| Stabilization |
spontaneous |
spontaneous |
| Opening behaviour |
spontaneous |
spontaneous |
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| Big ears accelerated |
1 |
1 |
| Entry |
easy |
easy |
| Recovery |
spontaneous, quickly |
spontaneous, quickly |
| Supplementary remarks |
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Windtech Zephyr M (22 nov 2007 08:17)
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