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Old August 15th 18, 07:42 PM posted to rec.aviation.soaring
Emir Sherbi
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Default What magic do the JS3 and Ventus 3 have that the ASG-29 Does not?

El martes, 14 de agosto de 2018, 14:47:28 (UTC-3), escribió:
On Tuesday, August 14, 2018 at 6:06:07 PM UTC+1, wrote:
On Tuesday, August 14, 2018 at 12:45:19 PM UTC-4, Paul T wrote:
Of course the AS33 will have even more magic.... and would the V3 be as
magical if it could fit as larger a pilot as the JS3? Wonder how much
difference that tincy fuselage makes?


Things that have no size have no drag. Every little bit helps, if you can fit in.
UH


Damian Goldenzweig from Argentina world ranked 2277 did very well to finish 28th in the larger fuselage prototype self-launching Ventus-3M. Analysing his flights on See You compared to little fuselage V3s he flew with doesn't show any significant performance difference. On Task 11, for example, he started with and mostly flew with highly ranked Mario Kiessling and/or Peter Millenaar and beat them both. The final glide performances at around 105 knots look identical - even allowing for me looking through a wishful thinking filter.



I was his crew on the WGC. There was difference in performance on most of the task, but that is because the championship had incredible flight conditions. The cruise speed on most of the time where around 220 km/h, of course that at that speed a more wide fuselage (and in consequence 6-8cm less wing) will have significant drag and loose more altitude than a V3T. On the days that where more normal (or poor) conditions, there was less difference. The 3M climbs as good as the others at the same wing loading.