Saturday, August 25, 2007

Pictures of theWorlds Largest Helicopter

http://southbros.blogspot.com/2007/07/largest-helicopter.html

It's downwash can blow rocks up to 12" around like leaves!

Saturday, August 11, 2007

Head Speed with new 430XL

Well, I went ahead and swapped out my Astro 020 for a new 430XL. I kept the 13T pinion as I wanted a 3000 rpm target head speed.

Taking a tip from Finless, I set up my throttle curve as flat zeros all the way across and used the middle point throttle curve adjustment point to slowly raise the throttle while keeping the pitch at zero.

Here are the results:

Throttle / Headspeed

34 / 2070
50/ 2460
60 / 2610
70 / 2760
75 / 2820
80 / 2880
85 / 2910
90 / 3060
95 / 3150
100 / 3270

I find it interesting to see how the curve flattens out at the top.
I'll probably run an 85% V-curve for idle up.

Hopefully, I won't puff my packs