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HomeAircraftHelicopterHIROBOOther › ZXX head timing question / problem.
06-02-2009 03:23 PM  9 years agoPost 21
glydrjocky

rrApprentice

Livermore, CA - USA

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Unless you have a servo that's glitching or a receiver that is giving problems when the engine and airframe vibration comes into play. In which case you would not be able to duplicate it on the ground.

The problem is this, something caused you to be 45 degrees out on your timing. (not normal) If that something gets worse you may end up even further out at which point it may result in a complete crash rebuild.

The only people who truly know where the edge lies, are those who have gone over.

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06-02-2009 04:14 PM  9 years agoPost 22
MRC-Hirobo

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Edison, NJ

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What part number did you have when you get when you ordered your new main mast?

MRC Host

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06-02-2009 07:49 PM  9 years agoPost 23
Bouchah

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Willow Spring, N. Carolina USA

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The mast part # is 0402-207, I had a spare new one from a 2 pack purchased a while ago.

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06-04-2009 03:17 AM  9 years agoPost 24
Bouchah

rrKey Veteran

Willow Spring, N. Carolina USA

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SteepCurve
Senior Heliman
Location: UK

My Posts This: Topic Forum It's the adjustability of the radius block that can introduce the interaction if it happens to be set away from neutral,
which may or may not be good , it all depends how it flies.

"phasing" or "timing" is the aerodynamic thing in heli's where you can end up with a non pure input because the rotor head doesn't repond in a pure fashion at the correct times.It can happen too early or too late and varies with different paddle weights, blade selection rotor rpm and a million other different rotorheady things,flybar input versus blade input etc.So Hirobo and other manufacturers build a mechanical timing/mix option into the heli that is adjustable, so that if necessary some deliberate cyclic interaction is introduced.This can be done from the radio too and has the advantage of allowing different amounts of aileron to elevator than elevator to aileron,if you want to use the radio it's better to set the heli to neutral timing.

Timing adjusting on the heli is a pain in the arse and just another thing to check on stripdown/rebuild
With radio mix ,once you set it it is easily repeatable with a value or set of values if nothing else on the heli setup changes
,if you feel the need to set any in the first place that is
http://runryder.com/t113037p2/

That quote is from this post link. Just wondering what anyone thinks about the phasing being effected by different blade types. The blades Ive always used were woodies, my new blades are fiberglass. Could this be the reason all along? Thanks.

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06-05-2009 12:10 AM  9 years agoPost 25
glydrjocky

rrApprentice

Livermore, CA - USA

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I've had 550mm wood, fiberglass and carbon fibre blades and non had any timing issues as compared to the others, they were just more responsive. All flew perfectly.

The only people who truly know where the edge lies, are those who have gone over.

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06-05-2009 01:47 AM  9 years agoPost 26
Dr.Ben

rrMaster

Richmond, VA, USA

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Regardless of blade type, you'll want the phasing set to 0 degrees static.

There will be some who will argue the merits of using some swashplate advance to improve aerobatics, but for every situation where such an adjustment may improve a certain maneuver, I double damn guarantee you that I can find another situation where it will adversely affect the way the model flies. Swash timing should be set for 0 degrees. The radio's mixing is then used to electronically advance the swash timing as needed to make loops and rolls work as they should.

Ben Minor

Peak Aircraft/Team Minicopter Team Futaba Team Kontronik USA

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HomeAircraftHelicopterHIROBOOther › ZXX head timing question / problem.
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