[vid] testing contrarotating prop distance
09-24-2020, 04:17 AM
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[vid] testing contrarotating prop distance
Probably a bit over the top for RC, and a little bit scary as well. But o.t.o.h. RC gets feathers up its rectum 
(too Dutch? 
)
Robert Llewellyn impressed by RC outrunners. The actual test starts @12m40s, determining optimal coaxial setup distance.
Not quite Scrapheap Challenge
Vriendelijke groeten Ron
• Without a watt-meter you're in the dark ... until something starts to glow •
• E-flight calculators • watt-meters • diy motor tips&tricks • Cumulus MFC •
(too Dutch? )Robert Llewellyn impressed by RC outrunners. The actual test starts @12m40s, determining optimal coaxial setup distance.
Not quite Scrapheap Challenge
Vriendelijke groeten
Ron• Without a watt-meter you're in the dark ... until something starts to glow •
• E-flight calculators • watt-meters • diy motor tips&tricks • Cumulus MFC •
Last edited by ron_van_sommeren; 09-24-2020 at 08:37 AM.
09-24-2020, 05:01 AM
#2
Saw this last year. Awesome plane, I'm wondering how the project has progressed since. I still want to see actual thrust/efficiency data reflecting ideal contra prop spacing instead of a clown being amazed that propellers produce airflow, who knew! I love the "eye protection" as if slinging off one of these props in this environment merely offered a threat of eye damage. Still, I'm wondering if the RC community has spent much effort in determining optimal contra prop spacing. I've only seen the result of a natural effort to reduce packaging size and therefore weight but nothing [except perhaps in Indoor Pattern] where spacing was addressed.
