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Blade 400 › 3D blade 400 questions
06-01-2009 09:10 PM  8 years agoPost 1
68eb429

rrNovice

Tiverton, RI 02878

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So i bought a blade 400, and since replaced the rotors,feather and main shaft,fly bar and paddles, and landing gear. Before i crashed i was hovering pretty well....now as i bring up the throttle she wants to always pull to the left(tail flying) and have brought all the adj to the right..it helped but could use more..so where am i out of adjustment if nothing was moved? Here in Afg. there are no local hobby stores so any input would be great so i can enjoy my little bit of down time. Thanks

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06-02-2009 12:22 AM  8 years agoPost 2
supra6

rrApprentice

Singapore

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If you are maxing out any of the trims to maintain stability you have got problems. When you say pulling to the left do you mean tail rotating left or heli banking left? It would be easy to say tail yawing (rotationg) is a gyro problem and banking excessive is a rotor problem, but the truth is they ALL interact.
What you need to do is go through a complete setup, check for "Sokal's" videos or reffrence the "Blade Bible"
The goals here are to have a level swash through out the vertical movement range on the collective, starting from the bottom working your way up.
DO you have a pitch gauge?
Disconnect two of the motor leeds.
Servo arms set as close to 90 degrees to the case as possible then subtrim them to 90.
At mid collective position on the stick, the washout arms should be level across and blade pitch should be 0 degrees, the full range should be +/- 10 degrees in STUNT mode, in Normal -3/+10 should work well.
As you lift off you'll need to apply a bit of right aileron, this is normal and in a hover there will be a slight bank angle to the right to counter act the tail rotor thrust, this again is normal.
If you are speaking of yaw (rotational) movement uncontrollable, I would suspect tail pronblems. Again check the vids and the bible, the explanation and set up would be another LONG post.

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06-02-2009 05:31 AM  8 years agoPost 3
Hurlchucker

rrNovice

Oregon,USA

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Here ya go...just a quick link to 'the bible'...Lots of good stuff in there!!
http://www.slyster.com/heli/

and another...just in case..
http://www.rcgroups.com/forums/atta...hmentid=1917298

Good luck 68eb..!!

You wont hear me not complaining...!

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06-02-2009 02:42 PM  8 years agoPost 4
68eb429

rrNovice

Tiverton, RI 02878

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checked the pitch at half throttle is 0 +/-, it wants to slide left not turn left.where to next?

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06-02-2009 09:47 PM  8 years agoPost 5
supra6

rrApprentice

Singapore

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Ok well still a bit confused, when you saw slide left you mean that the entire heli is moving left but NOT yawing (rotation of the nose) left? If this is the case that is normal, you'll get use to it, giving righr aileron (right stick) on take-off.
Good you have "0" at mid stick but you need to check the entire range of motion vertically that the swash move up and down in a level fashion, it it is not then what is happening is as you increase your pitch (left stick) you are inducing unwanted swash movements in other planes of motion. Hence the entire head setup, your going to need to learn how to do it sooner or later and the sooner the better. The causes of the unlevel swash movement are numerous and the setup will detect them, such as bad servo, servo arm alignment, control rod lengths, non level wash-out, improper pitch adjustment etc.
Do your self a favor, get a swash leveling tool (or use the allen whench method) and spend a evening going through it.

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06-02-2009 11:34 PM  8 years agoPost 6
Mitchilito

rrVeteran

Morehead City, NC USA

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Supra6, you are a very kind and patient person!

68eb429, I can see you are a person of few words!

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06-03-2009 05:05 AM  8 years agoPost 7
68eb429

rrNovice

Tiverton, RI 02878

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Im not trying to be short..The computer is my only means of me understanding this little bugger right now and tied with that i get bumped off all the time i have a tendency to be to the point....no disrespect intended...lol Im getting pretty familiar taking apart and back again...i will check the swash and have a tool on the way (alan wrench method?) what is this you seek of? ill search it ...thanks

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06-05-2009 05:22 PM  8 years agoPost 8
supra6

rrApprentice

Singapore

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If you don't have the leveled tool, take an alan wrench and zip tie it, or tape it to the main shaft so th long end runs up the shaft and the short end points out 90 degrees to the shaft, set the height so th short end rest on top of the control rod where the ball link conects to the swash, now when you rotate your main shaft you'll see which servo or servos are high or low. What you are looking for is at mid stick the wrench will not have to moved as you rotate the shaft meaning all the servos are holding at the same height, check for high and low limits of the swash movement, now you should have a level swash.
PS you use the length of the control rod to get the proper height on the swash, if for example at mid stick 2 point are equal and one is low, lengthen the low one to be level with the others.
The alan wrench works just the leveling tool is easier.

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06-05-2009 05:27 PM  8 years agoPost 9
30636086

rrKey Veteran

Tacoma, WA

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Im getting pretty familiar taking apart and back again..
We all have become great mechanics before we become great pilots! (Im personally still working on the pilot part)

I dont suffer from mental iIlness, I actually enjoy mine!

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06-06-2009 05:32 PM  8 years agoPost 10
helibro

rrVeteran

hamilton, ohio

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is your swash level?

hey! were is the reset button!

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06-06-2009 08:15 PM  8 years agoPost 11
30636086

rrKey Veteran

Tacoma, WA

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These is really helpful!


http://http://www.slyster.com/heli/
+1

I dont suffer from mental iIlness, I actually enjoy mine!

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06-07-2009 05:51 AM  8 years agoPost 12
supra6

rrApprentice

Singapore

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I doubt if it is but I think he's gone.

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06-07-2009 08:43 AM  8 years agoPost 13
68eb429

rrNovice

Tiverton, RI 02878

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it was slightly out, waiting on some replacement parts to finish(servo gears) so that i can put the arms at 90deg. then readjust by alen wrench or swash plate gauge. Looking over the manual and trying to figure out how to take off the anti rotation bar. Do I have to split the body? Removed both screws and it looks like there are tabs on the bar. Lastly im assuming that i have to remove the top part of the rotor head to level swash plate with either method is that correct. and if i havnt mentioned it before thanks for the help!

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06-07-2009 10:21 AM  8 years agoPost 14
supra6

rrApprentice

Singapore

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Disconnect the for connections to the swash going upwards, two to the grips and 2 to the washout, remove fromt those going up then 90 the dervos, level the swash and start putting the parts back on working your way up. Leave the swash itself on the heli, if you want to take it off the anti rotation bracket should bend enough out ot the way to remove it.

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