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Old 04-23-2017, 04:46 AM   #14 (permalink)
Andy01
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Join Date: Apr 2008
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You don't want something like these ?

https://derblattschmied.com/epages/5...T-WS-470/43%22 - 470mm x 43mm

or if you can fit another 30mm, these;

https://derblattschmied.com/epages/5...HT-G-500/43%22

Unfortunately the next size up is 515mm, with 53mm chord and 12mm root, so they probably wouldn't fit in 500 size blade grips.

https://derblattschmied.com/epages/5...HT-G-515/53%22

I run Spin asymmetrical 465mm x 51mm on my recently deceased UH-1N at 1700rpm, and it flies well with plenty of lift - they do have rounded tips though. From memory there was plenty of space between main and tail blades with 465mm, so longer blades could probably be OK.

Colin
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