It Doesn't Fly

[mrmac]

Hi, I just received my BR and try to fly,but, the top rotor doesn't work.
IS there anything I can do to make it work or should I send it back?

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i've got a problem like that! mine started to fly but it had a few crashes and now the bottom rotor just doesn't seem to move, it's locked. the top rotor spins but the bottom rotor just spins slowly with it in the same direction :(
can anyone help at all?

[petter]

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The bottom rotor just spins slowly in the same direction as the other rotor - this could be two things: If the rubber tube holding the top rotor down is not far enough down so that you have too much vertical play in the lower rotor (lower rotor can move too much up) the gears for the lower rotor can slip, thus stop rotating in the right direction. The other posibility is that the gear for the lower rotor is damaged.

mrmac
Yes it is quite a bit you can do, however, it means opening the body and probably replacing one motor or fixing a broken wire. You will find a lot of information in the other threads. If you plan to return it you should not open it.

Petter

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the rubber is far down and pushed down, i think it is the gears as i hear something spinning louder than before, is there a way to see the gears without damaging things?
thx

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i have taken the blades off and i see inside, when i turn the copter on and tell it to go up the gears move insidebut there is a gear on the right hand front side (looking at helicopter from behind) that carries on spinning after i stop it moving, the other gears stop with the rotor mainshift, could this be the problem?

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also i cant seem to get the top rotor to fit back on the mainshaft, the instructions do not explain how they go on, i have a piece of rubber, two blades and 2 pieces of hollow plastic tubing, could you please show me how they fit on? im guessing bottom blade, 2 tubes, top blade, rubber
thankyou!

[petter]

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The correct way to put the rotors back is as you suggest: bottom blade, 2 tubes, top blade, rubber. The top rotor has to have the right orientation before it will enter on the D-shaped shaft.

Here is a picture of how it look inside the body.
http://www.rcgroups.com/forums/showpost.php?p=3064387&postcount=25

Petter

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ok thx i will check that!
but if i do cut the tape, will i still be able to return to a shop or to the supplier if it still doesnt work.
you are the inventor aren't you?
thankyou very much for the quick help! great heli you made! only problem is i cant get it to move forward

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is there a way to get it off without cutting the plastic case, as the bottom is glued to the side, so even if i cut the tape the shell will not stretch enough

[petter]

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Yes, I have invented the rotor system in the Bladerunner that is markeded by ITC in Canada. I do not control any of the production and I have no special responsibilities with respect to support, however, I try to help when I can.

To get the Bladerunner to move faster a lot of people do the so-called "cat killer mod" that is cutting off the small ring on the yellow tail rotor so that it will spin a bit faster (still not very dangerous).

If you take off the body you might have problems with returning it. You will have to ask someone at ITC (on monday) about this. Maybe you can just cut a little bit in the body in front of the rotors - then you will be able to see the gears without having to remove the body.

I live in Norway and it is already the middle of the night here, so I am sorry, but I will not be able to get back to you again before tomorrow.

Petter

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ok thankyou, i think i will try and return it to the shop :)