Posted: Tue Apr 05, 2011 12:16 am Post subject: Airdesign Pure against Ozone M4
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Last Sunday I had the chance to get a 5 hours flight on the Airdesign Pure M. I flew with my Advance Impress 2 and had 106 kg in total.
Friend of mine (Tom Russegger) flew the Ozone Mantra M4 ML, also with 106 kg.
Both of us flew the same distance – a triangle with about 130 km in Greifenburg (Austria). Wind was light from south – southwest. Thermal was good – up to 7 m/sec, high cloudbase (up to 3.800 m).
Two other friends flew on Ozone R10, same distance, always with us Markus Eder, Christoph Haas). The R10 pilots are very talented pilots, but they are not so experienced on the R10 (both coming from serial class and have about 10 thermal flights on the R10). All four of us have been connected with radio, means we had the chance to try a few things, asking how much of the speedbar the other pilot is pushing at the moment …
I had the chance to fly the M4 already a few days before and was very impressed about the performance. Except top speed this wing is close to the performance of his big brother R10 in gliding and climbing with a way better handling. At this flight I had the chance to compare with a Niviuk Peak 1 (!) and a Ozone R10. Result: Close to the R10, far ahead of the Peak.
Means the target for the AD Pure was high. So much before: the performance is wondrous equal with some very light differences:
Taking off is easy on both wings. (We had a light headwind)
Thermaling:
Both of us had no problem to follow the R10’s. In stronger thermal we have been even better because it’s been way easier to us to center the thermal. No difference in thermaling between Pure and M4 (in strong and weak thermal).
Trimspeed:
1st WOW!
Both wings have an outstanding trimspeed, way faster than Peak or other EN-D wings. The trimspeed was even a bit faster than the R10 trimspeed. The gliding between both wings (Pure & M4) has been the same – no difference at all. On our final glide we have been soaring against the wind – both on trim speed. After 2 km gliding: same altitude, same distance – exactly the same!
The R10 is on trimspeed a bit slower, but they pushed the speedbar to have the same speed. Then the R10 gliding is very slightly better (after 5 min. flying between 10-30 m altitude difference (means hard to say, almost equal).
Speedbar:
The speedbar on the AD Pure is harder than on the M4, but still easy to push with one leg. Very usefull on the Pure are the “C-Balls”, some small balls on the C-risers. You can manage to steer the wing when going on speedbar without losing to much performance. The balls also help to control the wing while going through some turbulent air without releasing the speedbar. This was one of the differences between M4 and AD Pure. In turbulent air the M4 had to break – means reducing speed. I just pulled on the C-Risers. (Probably you could do this on the M4 as well)
Very interesting: Both wings have exactly the same top speed. We pushed the full speed bar – same gliding, same speed! Both wings showed no sign about feeling nervous – very stable!
GLIDING – the most important to me!
2nd WOW
The gliding with trimspeed is exactly the same – no difference between the M4 and the AD Pure. BUT with 1/3 – 1/2 on speedbar the AD Pure has a better gliding. We tried it twice – one time with the wind, one time against the wind. With the wind the difference was almost nothing, against the wind there was a difference (about 50-70 meters in altitude after a 3 km gliding). The air was weak on this gliding, sometimes some small lifts, but nothing enough for thermaling.
Handling
Both wings (M4 & AD Pure) have a great handling. Since last year I use to fly with tight chest strap – as tight as possible (the new wings give still a very good feedback, thermaling is still easy and the handling becomes way better). The AD Pure is very easy to fly, the feedback is great and I felt very safe the whole flight – just nothing to complain!
Conclusion
Ozone M4 and Airdesign Pure are almost equal with some small advantages for the AD Pure in gliding on 1/3 – 1/2 speedbar and with the “C-Balls” to balancing the wing in turbulent air while going on speedbar compare to pulling the brakes.
The Ozone M4 has a softer speedbar, which makes a long flight even more relaxing.
Doesn’t matter which of the two wings you are going to fly this year, you will love it!
Happy landing
Stefan Brandlehner, Austria
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Last Sunday I had the chance to get a 5 hours flight on the Airdesign Pure M. I flew with my Advance Impress 2 and had 106 kg in total.
Friend of mine (Tom Russegger) flew the Ozone Mantra M4 ML, also with 106 kg.
Both of us flew the same distance – a triangle with about 130 km in Greifenburg (Austria). Wind was light from south – southwest. Thermal was good – up to 7 m/sec, high cloudbase (up to 3.800 m).
Two other friends flew on Ozone R10, same distance, always with us Markus Eder, Christoph Haas). The R10 pilots are very talented pilots, but they are not so experienced on the R10 (both coming from serial class and have about 10 thermal flights on the R10). All four of us have been connected with radio, means we had the chance to try a few things, asking how much of the speedbar the other pilot is pushing at the moment …
I had the chance to fly the M4 already a few days before and was very impressed about the performance. Except top speed this wing is close to the performance of his big brother R10 in gliding and climbing with a way better handling. At this flight I had the chance to compare with a Niviuk Peak 1 (!) and a Ozone R10. Result: Close to the R10, far ahead of the Peak.
Means the target for the AD Pure was high. So much before: the performance is wondrous equal with some very light differences:
Taking off is easy on both wings. (We had a light headwind)
Thermaling:
Both of us had no problem to follow the R10’s. In stronger thermal we have been even better because it’s been way easier to us to center the thermal. No difference in thermaling between Pure and M4 (in strong and weak thermal).
Trimspeed:
1st WOW!
Both wings have an outstanding trimspeed, way faster than Peak or other EN-D wings. The trimspeed was even a bit faster than the R10 trimspeed. The gliding between both wings (Pure & M4) has been the same – no difference at all. On our final glide we have been soaring against the wind – both on trim speed. After 2 km gliding: same altitude, same distance – exactly the same!
The R10 is on trimspeed a bit slower, but they pushed the speedbar to have the same speed. Then the R10 gliding is very slightly better (after 5 min. flying between 10-30 m altitude difference (means hard to say, almost equal).
Speedbar:
The speedbar on the AD Pure is harder than on the M4, but still easy to push with one leg. Very usefull on the Pure are the “C-Balls”, some small balls on the C-risers. You can manage to steer the wing when going on speedbar without losing to much performance. The balls also help to control the wing while going through some turbulent air without releasing the speedbar. This was one of the differences between M4 and AD Pure. In turbulent air the M4 had to break – means reducing speed. I just pulled on the C-Risers. (Probably you could do this on the M4 as well)
Very interesting: Both wings have exactly the same top speed. We pushed the full speed bar – same gliding, same speed! Both wings showed no sign about feeling nervous – very stable!
GLIDING – the most important to me!
2nd WOW
The gliding with trimspeed is exactly the same – no difference between the M4 and the AD Pure. BUT with 1/3 – 1/2 on speedbar the AD Pure has a better gliding. We tried it twice – one time with the wind, one time against the wind. With the wind the difference was almost nothing, against the wind there was a difference (about 50-70 meters in altitude after a 3 km gliding). The air was weak on this gliding, sometimes some small lifts, but nothing enough for thermaling.
Handling
Both wings (M4 & AD Pure) have a great handling. Since last year I use to fly with tight chest strap – as tight as possible (the new wings give still a very good feedback, thermaling is still easy and the handling becomes way better). The AD Pure is very easy to fly, the feedback is great and I felt very safe the whole flight – just nothing to complain!
Conclusion
Ozone M4 and Airdesign Pure are almost equal with some small advantages for the AD Pure in gliding on 1/3 – 1/2 speedbar and with the “C-Balls” to balancing the wing in turbulent air while going on speedbar compare to pulling the brakes.
The Ozone M4 has a softer speedbar, which makes a long flight even more relaxing.
Doesn’t matter which of the two wings you are going to fly this year, you will love it!
Happy landing
Stefan Brandlehner, Austria
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