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HomeAircraftHelicopterThunder TigerOther › New blades now faster head speed
05-06-2005 05:30 PM  13 years agoPost 1
flyingquisinart

rrApprentice

Detroit Area

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I have a R30 V1 and crashed it (tipped it really) in high wind a couple of weeks ago. Finally repaired it with the usual crash parts--spindle, blades, double links, etc. Using the Mavrikk woodies in the crash kit.

Spooled it up last night to check tracking and see how it goes. Blades track perfectly and no vibration anywhere that I can see.

But it seemed to run a higher head speed than before. I keep the pitch at midstick at 6 degrees in Normal mode which normally gives me slowish head speed. My pitch gauge still says 6 degrees (maybe 5 3/4) at mid stick.

Now I'm hovering below mid-stick with a higher head speed than I want.
I think somehow I'm actually running a lower pitch when it's actually running than sitting on the bench. If I increase the pitch curve then I will be well below half stick. For the time being I reduced my throttle curve substantially. BTW I'm running my OS 32 almost too rich as it will only smooth out after about 2 minutes of hovering, so it's not leaner (w/ more power) than before--I think.

What could have changed? Maybe my thrust bearing ball race (not the two grooved "washers" is backwards--I don't know if the direction matters?

must have been a downdraft

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05-06-2005 05:58 PM  13 years agoPost 2
rtrickyjr

rrVeteran

Drumore, PA (SW of Quarryville)

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Head load
I noticed, with different brand blades, the head loads differently. Sabs on my 32 gave me the same effect. What brand of blade were you using before the 'incident' happened? If they were TT, then I'd just adjust the curves, and fly.

Take care,


-Rick-

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05-06-2005 07:16 PM  13 years agoPost 3
flyingquisinart

rrApprentice

Detroit Area

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I think my last replacement blades were also Maverikk, but maybe they were TT. They had the white shrink wrap not the clear like the original TT blades had.

The blades are just slightly different as the last ones I had to dremel off a notch at the very root to fold the blades back into the grip. This batch I don't have to. Maybe the manufacturing is slightly different.

I replaced the clunk line too while reparing but that made it run slightly richer not leaner. Oh well, it seems to run fine and I'll keep it on the rich side as always.

must have been a downdraft

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