Tail Boom Removal

[The_Russian]

Talk me through it. I am putting the Align tail servo mount on my Blade tomorrow and I want to do it right.

Any advice? Tips?

[sokal]

loosen the 4 screws like would to tigten boom
remove tail assy
tie sting or something to bet so you can pull it back
lossens tail supports
pull boom
out a bit
have the clamp screws out of sevo mount
slide belt threw
then slide on boom
then reassemble
make sure belt is back on belt rive pully
and make sure you install the belt on the tail drive shaft the right way

now im sure you can just disassemble all
just thats the wa i would do it
but i mount mine normally in stock location

[rudderman]

Couldn't you just remove the tail casing and the fin and rod guides and slip it on from the back? This way you don't have to screw up your belt tension or fight putting the belt through the tail boom.

[sokal]

that sound easier good look:clappp

[The_Russian]

Couldn't you just remove the tail casing and the fin and rod guides and slip it on from the back? This way you don't have to screw up your belt tension or fight putting the belt through the tail boom.
That worked best!

Thanks both of you.

[KernelSanders]

I had to replace my tail boom yesterday. Actually, its the second one. :)
Once I put it back together, it all seemed fine. As I throttled up the copter, it started spinning really fast, almost as if the gyro wasn't connected at all. I shut it off and rechecked everything like the direction of the belt, the tail servo, everything. I put it back together again and spun it up. It seemed fine, but, once I get up to 1/2 stick, the copter starts spinning again. Dropping stick back down slows the spinning but once the spin starts, I have to turn everything off and on again to get it to hold. I tried flipping the switches on the gyro thinking I may have moved something while putting it back together.

My questions are as follows:
1) Can this be caused by something other than a hosed gyro?
2) What should the two switches on the eFlight gyro be set to?

Thanks.

[randerson07]

I had to replace my tail boom yesterday. Actually, its the second one. :)
Once I put it back together, it all seemed fine. As I throttled up the copter, it started spinning really fast, almost as if the gyro wasn't connected at all. I shut it off and rechecked everything like the direction of the belt, the tail servo, everything. I put it back together again and spun it up. It seemed fine, but, once I get up to 1/2 stick, the copter starts spinning again. Dropping stick back down slows the spinning but once the spin starts, I have to turn everything off and on again to get it to hold. I tried flipping the switches on the gyro thinking I may have moved something while putting it back together.

My questions are as follows:
1) Can this be caused by something other than a hosed gyro?
2) What should the two switches on the eFlight gyro be set to?

Thanks.

I'm getting a similar problem, that I cant quite fix. Last night I re setup my Gy401 and installed a 9650, It seemed to hold fine until I gave it some rudder, once I gave it rudder it just began to spin uncontrollably. I changed out the tail shaft cause it was bent so thats not the cause, when I spin the main blades by hand everything spins freely for a revolution or two after i let go. there doesn't seem to be any binding in the linkage.

Next Ill be checking the gears and shaft in the frame that the belt goes around, and to see if maybe the belt is rubbing on the boom somewhere.

If I cant get this fixed easily I'm giving up on the B400 and sticking to my Mini Titans(although they are giving me some crap now too, I figure throwing money at them is the answer lol).

[LockMD]

I'm getting a similar problem, that I cant quite fix. Last night I re setup my Gy401 and installed a 9650, It seemed to hold fine until I gave it some rudder, once I gave it rudder it just began to spin uncontrollably.


flip the reverse switch on the gyro itself.

[randerson07]

LOL please tell me its not that simple.

when i do give rudder input it appears to start to move in the right direction, it just doesnt stop moving, ill give it a try though.

[KernelSanders]

I switched my Gyro to reverse last night, but, although the spinning stopped, the yaw changed to opposite of what I would normally have.

[sokal]

rerse the rudd in TX for rudd input for compensation its on the gyro its self do nor rev the gyro channel in TX leave N

[LockMD]

LOL please tell me its not that simple.

when i do give rudder input it appears to start to move in the right direction, it just doesnt stop moving, ill give it a try though.


Yup, I did the same thing. When you give it a touch of rudder the gyro is thinking its going the wrong way (and with it being reversed) it tries to spin faster in the same direction you were going.

[skigolfmike]

If you put the 1/2 twist in the belt the wrong direction, you'd be spinning the tail backwards. You would know because the tail inputs would be backwards and the gyro would act stupid. To check, rotate the head in the correct direction and see if the tail is spinning the right way. If the trailing edges of the blades are leading, it's backwards.

[sokal]

the tail blades rotate up in to the downwash of that main rotor

[KernelSanders]

flip the reverse switch on the gyro itself.

What should it be from the factory?

rerse the rudd in TX for rudd input for compensation its on the gyro its self do nor rev the gyro channel in TX leave N

I never changed the setting in the TX. It is the same as it has been since I got it. All I did was change the tail boom.

If you put the 1/2 twist in the belt the wrong direction, you'd be spinning the tail backwards. You would know because the tail inputs would be backwards and the gyro would act stupid. To check, rotate the head in the correct direction and see if the tail is spinning the right way. If the trailing edges of the blades are leading, it's backwards

Yeah, I checked that last night. The tail rotor spins in the right direction.
I don't know what else to try. The gyro seemed to be working because when it has power, it won't let me move the tail servo. It acts as if everything is ok until I get past 1/2 stick. Then, it spins even when I pull it back. If something was reversed, it would seem that this would act like this at all times and not just until half stick. :(

I'll go home and try it now. Can someone tell me what the two switches on the stock eFlite gyro should be?
Thanks!

[sokal]

have you checked your belt tention may be slipping

also to verify the gyro is compensating move tail with hands and the slider should go in the oposite direction you moved tail.

check ruud direction left slider towards blades
right towards casing

gyro switched should be std and rev is stock i belive

[LockMD]

What should it be from the factory?


Just switch it, I think it came std, put it in reverse or vice versa.

[KernelSanders]

Just switch it, I think it came std, put it in reverse or vice versa.

The gyro seems to be ok but it feels funny in flight. For some reason, I thought I remembered that when I moved the stick to the left, it yawed counter clockwise. Now, when I push the stick left, the tail swings clockwise. I guess the gyro is ok, maybe I screwed something up when I set my expos. :dontknow

Any suggestions? The parts are getting expensive. :confused:
I guess the silver lining is that I am getting really good at taking it apart and putting it together. I'll pull out the manual for the TX tonight and see if I can switch tail direction and see if that feels better.

[sokal]

tail servo reversing is in the setup list in the TX under reverse
(stick left nose left) (stick righ nose....)
fly the nose

if tail moves slow to you put the rudd expo to -1 to -5 will make the tail react faster

[KernelSanders]

tail servo reversing is in the setup list in the TX under reverse
(stick left nose left) (stick righ nose....)
fly the nose

if tail moves slow to you put the rudd expo to -1 to -5 will make the tail react faster

Yeah, I found it. I'll set it up tomorrow. I think I'm going to get the GY401 and new tail servo since the tail bounces around a lot. Thanks for the help!!!

[sokal]

401 with the 3400 is insane
but may get buy with a cheaper tail servo

[randerson07]

I switched the reverse on the 401 and then had to reverse the servo in the TX. I did a quick spool up in the garage, she seems to be in order now, thanks guys. Hopefully I get to do some flying this weekend and Ill report back.