ORIGINAL: bjr_93tz
Good News!!,
word from YS is they'll fix it under warranty so it looks like I will be shipping a box of bits to Japan.
Interesting, they suggested I try the new APC 20x10.5 prop when I get it back.
Google doesn't seem to know much about this prop???
I have just started using this prop about a month ago on my cdi with CP 20% fuel, it's turning about 7,000 on the ground, but you'll have more than enough power for the verticals. Down line is nice & slow.
You can order from Central Hobbies or direct from APC.
Adrian