Blade CP gyro malfunction?

[mporlier]

Last night I crashed my CP. Not to much physical damage but on the next
take-off the tail was going all over. I looked at every part and things
seemed OK. Could it be a gyro problem? I opened my 4-1 RX and found a
little metal cover loose in it. It looks like the receiver shield. Is
this dangerous?

Thank you

[Doug McLaren]

In article <1158321884.166885.148310@i3g2000cwc.googlegroups.c om>,
mporlier <mporlier@gmail.com> wrote:

| Last night I crashed my CP. Not to much physical damage but on the next
| take-off the tail was going all over. I looked at every part and things
| seemed OK. Could it be a gyro problem?

Perhaps.

Proper operation of the gyro is easy to determine. Hold the
helicopter in your hand, and put it at half throttle. Both rotors
should spin. Then turn the helicopter with your hand to the left and
to the right, and the gyro should make the tail rotor attempt to
oppose your movements. It should be very obvious -- the tail rotor
will speed up and slow down greatly.

| I opened my 4-1 RX and found a little metal cover loose in it. It
| looks like the receiver shield. Is this dangerous?

It could certainly cause problems, yes -- especially if it shorts
something out or otherwise touches something metal. Glue it back into
place.

If the gyro is shot, you'll probably have to replace the 4-in-1 unit.
The part is $70 I think, but I know a guy here in Austin who was
selling a few for $30 if you need me to get him in touch with you.

If you do spend $70, I'd suggest getting the part out of the Blade CP
Pro instead. It's similar to the Blade CP version, but the RX and
esc/esc/gyro parts are seperated and can be replaced seperately, and
you can also use your own gyro and bypass the internal one (so you can
use a HH gyro.) I haven't tested that the parts are interchangable,
but it sure looks like they should be.

--
Doug McLaren, dougmc@frenzied.us
Porkchops and bacon, my two favorite animals. --Homer Simpson

[mporlier]

I will try the tail test although it does not have a tail roter since
it uses counter rotating rotors but I am certain it will work.


Doug McLaren wrote:
> In article <1158321884.166885.148310@i3g2000cwc.googlegroups.c om>,
> mporlier <mporlier@gmail.com> wrote:
>
> | Last night I crashed my CP. Not to much physical damage but on the next
> | take-off the tail was going all over. I looked at every part and things
> | seemed OK. Could it be a gyro problem?
>
> Perhaps.
>
> Proper operation of the gyro is easy to determine. Hold the
> helicopter in your hand, and put it at half throttle. Both rotors
> should spin. Then turn the helicopter with your hand to the left and
> to the right, and the gyro should make the tail rotor attempt to
> oppose your movements. It should be very obvious -- the tail rotor
> will speed up and slow down greatly.
>
> | I opened my 4-1 RX and found a little metal cover loose in it. It
> | looks like the receiver shield. Is this dangerous?
>
> It could certainly cause problems, yes -- especially if it shorts
> something out or otherwise touches something metal. Glue it back into
> place.
>
> If the gyro is shot, you'll probably have to replace the 4-in-1 unit.
> The part is $70 I think, but I know a guy here in Austin who was
> selling a few for $30 if you need me to get him in touch with you.
>
> If you do spend $70, I'd suggest getting the part out of the Blade CP
> Pro instead. It's similar to the Blade CP version, but the RX and
> esc/esc/gyro parts are seperated and can be replaced seperately, and
> you can also use your own gyro and bypass the internal one (so you can
> use a HH gyro.) I haven't tested that the parts are interchangable,
> but it sure looks like they should be.
>
> --
> Doug McLaren, dougmc@frenzied.us
> Porkchops and bacon, my two favorite animals. --Homer Simpson

[The OTHER Kevin in San Diego]

On 16 Sep 2006 20:04:39 -0700, "mporlier" <mporlier@gmail.com> wrote:

>I will try the tail test although it does not have a tail roter since
>it uses counter rotating rotors but I am certain it will work.

If you've got counter-rotating rotors, you don't have a Blade CP.
You've got the CX model. I'm pretty sure the 4-in-1 units for these
ships are different and not interchangable.

[Doug McLaren]

In article <rmipg2l4c96ob2518qqqt4lo4nqnkimc26@4ax.com>,
The OTHER Kevin in San Diego <skiddz "AT" adelphia "DOT" net> wrote:

| On 16 Sep 2006 20:04:39 -0700, "mporlier" <mporlier@gmail.com> wrote:
|
| >I will try the tail test although it does not have a tail roter since
| >it uses counter rotating rotors but I am certain it will work.
|
| If you've got counter-rotating rotors, you don't have a Blade CP.
| You've got the CX model.

Correct. However, the test does still work -- it's just that instead
of the tail rotor speeding up or slowing down, one rotor will speed up
and the other slow down. It will be very noticable.

(Personally, I'm a bit surprised that the CX has a gyro at all. From
how it works, I'd expect that a gyro would not really be needed -- but
it definately *does* have one, as this test will quickly show. I
guess the gyro just makes the tail even more stable.)

For a CX, you may have made it so one rotor binds more than the other,
and therefore turns slower. If the difference is small, you could
adjust the pot in the 3-in-1 (I think it's a 3-in-1 for the CX) but
getting new parts would probably make more sense. But figuring out
which part is bad might be tricky.

| I'm pretty sure the 4-in-1 units for these ships are different and
| not interchangable.

Nope. Very different.

--
Doug McLaren, dougmc@frenzied.us
I can't take his money. I can't print my own money. You want me to
work for money. Why don't I just lay down and die! --Homer Simpson

[mporlier]

MY MISTAKE I do have a CS!!! Sorry

As for on motor binded it would than turn only one way. It goes both
sides. Thank you all for the info!


Doug McLaren wrote:
> In article <rmipg2l4c96ob2518qqqt4lo4nqnkimc26@4ax.com>,
> The OTHER Kevin in San Diego <skiddz "AT" adelphia "DOT" net> wrote:
>
> | On 16 Sep 2006 20:04:39 -0700, "mporlier" <mporlier@gmail.com> wrote:
> |
> | >I will try the tail test although it does not have a tail roter since
> | >it uses counter rotating rotors but I am certain it will work.
> |
> | If you've got counter-rotating rotors, you don't have a Blade CP.
> | You've got the CX model.
>
> Correct. However, the test does still work -- it's just that instead
> of the tail rotor speeding up or slowing down, one rotor will speed up
> and the other slow down. It will be very noticable.
>
> (Personally, I'm a bit surprised that the CX has a gyro at all. From
> how it works, I'd expect that a gyro would not really be needed -- but
> it definately *does* have one, as this test will quickly show. I
> guess the gyro just makes the tail even more stable.)
>
> For a CX, you may have made it so one rotor binds more than the other,
> and therefore turns slower. If the difference is small, you could
> adjust the pot in the 3-in-1 (I think it's a 3-in-1 for the CX) but
> getting new parts would probably make more sense. But figuring out
> which part is bad might be tricky.
>
> | I'm pretty sure the 4-in-1 units for these ships are different and
> | not interchangable.
>
> Nope. Very different.
>
> --
> Doug McLaren, dougmc@frenzied.us
> I can't take his money. I can't print my own money. You want me to
> work for money. Why don't I just lay down and die! --Homer Simpson

[The OTHER Kevin in San Diego]

On Sun, 17 Sep 2006 05:24:42 GMT, "Doug McLaren"
<dougmc+usenet-20060917@frenzied.us> wrote:

>In article <rmipg2l4c96ob2518qqqt4lo4nqnkimc26@4ax.com>,
>The OTHER Kevin in San Diego <skiddz "AT" adelphia "DOT" net> wrote:
>
>| On 16 Sep 2006 20:04:39 -0700, "mporlier" <mporlier@gmail.com> wrote:
>|
>| >I will try the tail test although it does not have a tail roter since
>| >it uses counter rotating rotors but I am certain it will work.
>|
>| If you've got counter-rotating rotors, you don't have a Blade CP.
>| You've got the CX model.
>
>Correct. However, the test does still work -- it's just that instead
>of the tail rotor speeding up or slowing down, one rotor will speed up
>and the other slow down. It will be very noticable.

I wasn't disputing that. Just pointing out that the 4-in-1 is
different.

[mporlier]

OK Idid the test, no resistance at all. But this heli is so small I
question the fact that the gyro action could be noticable at all. I an
going to the store to test a new 4-1. Thank you all for the answers.


The OTHER Kevin in San Diego wrote:
> On Sun, 17 Sep 2006 05:24:42 GMT, "Doug McLaren"
> <dougmc+usenet-20060917@frenzied.us> wrote:
>
> >In article <rmipg2l4c96ob2518qqqt4lo4nqnkimc26@4ax.com>,
> >The OTHER Kevin in San Diego <skiddz "AT" adelphia "DOT" net> wrote:
> >
> >| On 16 Sep 2006 20:04:39 -0700, "mporlier" <mporlier@gmail.com> wrote:
> >|
> >| >I will try the tail test although it does not have a tail roter since
> >| >it uses counter rotating rotors but I am certain it will work.
> >|
> >| If you've got counter-rotating rotors, you don't have a Blade CP.
> >| You've got the CX model.
> >
> >Correct. However, the test does still work -- it's just that instead
> >of the tail rotor speeding up or slowing down, one rotor will speed up
> >and the other slow down. It will be very noticable.
>
> I wasn't disputing that. Just pointing out that the 4-in-1 is
> different.

[mporlier]

OK Idid the test, no resistance at all. But this heli is so small I
question the fact that the gyro action could be noticable at all. I an
going to the store to test a new 4-1. Thank you all for the answers.


The OTHER Kevin in San Diego wrote:
> On Sun, 17 Sep 2006 05:24:42 GMT, "Doug McLaren"
> <dougmc+usenet-20060917@frenzied.us> wrote:
>
> >In article <rmipg2l4c96ob2518qqqt4lo4nqnkimc26@4ax.com>,
> >The OTHER Kevin in San Diego <skiddz "AT" adelphia "DOT" net> wrote:
> >
> >| On 16 Sep 2006 20:04:39 -0700, "mporlier" <mporlier@gmail.com> wrote:
> >|
> >| >I will try the tail test although it does not have a tail roter since
> >| >it uses counter rotating rotors but I am certain it will work.
> >|
> >| If you've got counter-rotating rotors, you don't have a Blade CP.
> >| You've got the CX model.
> >
> >Correct. However, the test does still work -- it's just that instead
> >of the tail rotor speeding up or slowing down, one rotor will speed up
> >and the other slow down. It will be very noticable.
>
> I wasn't disputing that. Just pointing out that the 4-in-1 is
> different.

[Doug McLaren]

In article <1158595055.853096.175680@b28g2000cwb.googlegroups. com>,
mporlier <mporlier@gmail.com> wrote:

| OK Idid the test, no resistance at all. But this heli is so small I
| question the fact that the gyro action could be noticable at all. I an
| going to the store to test a new 4-1. Thank you all for the answers.

It won't really show up as resistance in a CX, not as much as it does
on a CP anyways -- on a CP you'll really hear that tail rotor spin up.

On the CX, set the throttle so the rotors are both turning, but not
too fast -- perhaps half throttle, or perhaps slower? By rotating
(yawing) the helicopter quickly one way and then the other it should
be OBVIOUS that one rotor speeds up and the other speeds down. If the
rotors aren't going too fast, one will even stop as the other speeds
up greatly.

Looks like the Blade CX control unit does not have a gyro gain
adjustment, so there's nothing to adjust there.

If your control unit is indeed broken, be sure you get the right one.
The CP one looks a lot like the CX one, but the two are very
different. The CX one is also cheaper -- about $50.

| > >| If you've got counter-rotating rotors, you don't have a Blade CP.
| > >| You've got the CX model.
| > >
| > >Correct. However, the test does still work -- it's just that instead
| > >of the tail rotor speeding up or slowing down, one rotor will speed up
| > >and the other slow down. It will be very noticable.
| >
| > I wasn't disputing that. Just pointing out that the 4-in-1 is
| > different.

And I wasn't disputing what you said either :)

--
Doug McLaren, dougmc@frenzied.us I've heard the screams of the vegetables.