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HelicopterMain Discussion › Trex 450 DFC Head
01-27-2013 06:32 PM  4 years agoPost 1
jimmyG

rrNovice

Wisconsin

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I'm noticing some binding when I turn the blade grips on my DFC head. The head came assembled but I took it apart and greased everything including the thrust bearings. Neither blade grip turns very smoothly.

Could the screws be too tight? How tight should they be? I'm fairly certain everything is in the right order, including the thrust bearings. I would think the blade grips should be very smooth.

Also, any hints on toning down this heli? I heard that the blade grips can be turned upside down for a more beginner feel. Is this true?

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01-27-2013 06:34 PM  4 years agoPost 2
nappyroots2182

rrElite Veteran

Moline, il

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pull out on the grips hard while turning them and see if it smooths out. if so its ok. same thing on my velocity 50 which a pro told me to do. works fine. as for toning down what FBL unit are u using?

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01-28-2013 04:23 AM  4 years agoPost 3
srgfitness

rrNovice

west chester pa usa

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To tone it down I would look at reducing the head speed and adding expo. The best thing you can do however is fly a simulator and DO NOT treat it like a game. When I fly the sim now, every time I have to hit the reset button I put a dollar in our household piggy bank. Too many of the people that I teach to fly are using sims like a game and just hit the reset button to get back flying. I try to get them to remember that a crash can run an easy hundred bucks and couple of hours of build time.

When possible shoot first. When that isn't possible shoot fast.

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01-28-2013 06:33 AM  4 years agoPost 4
AWittleWabbit

rrElite Veteran

O.C., CA

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Reversing the grips on a dfc won't do a thing. You're thinking delta angle. The dfc head is really stiff, so its up to the fbl controller tuning to give you the feel you want.

Dfc grips can be a bit stiff to turn at first. It will wear in. The hard plastic bushings don't give so when you tighten the spindle bolts all the bearings get clamped. The screws should be tight. Do not loosen them to get the bearings running loose. How tight they are clamped is controlled by the bushing width and spindle length.

I've not run my dfc heads at low rpm (<3000) I'm not sure how low you can run them. It's certainly something to try. Do look at your fbl controller manual first and try and tame it that way.

Post what fbl controller and pitch and tt curves you are using.

Heli-itis sufferer.

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HelicopterMain Discussion › Trex 450 DFC Head
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