neon blaze problemo:(

[simon1]

hi all,
Wondering if anyone could help me, i have a neon blaze cp, 2.4, replaced a tail boom after a crash, put servo's and all back in, setup servo's, blade tracking, swashplate levelled, but I got no pitch! no lift at all!

Now iv tried everything batt fully charged(although I think this may be a bit dodgy after a few prangs) increased pitch om blades using the blaze transmitter, any ideas? iv ran out?!

Cheers

[antsis]

Disconnect the motor from the speed controller and then power up the tx and heli. Move the throttle stick and see if the pitch changes. You want about 5-6 degrees at half throttle.

Don't know the Neon Blaze tx, but the min pred was very sensitive to changes in the hover pitch and throttle. Does your tx have two rotary knobs on it? Check the hover pitch one hasn't been turned fully down.

[paulcobra]

i thought it should be 0 degrees at midstick?

[Bugster]

i thought it should be 0 degrees at midstick?

Mine is. Flies great but am I wrong ?

[paulcobra]

everything i have read on the net says set the throttle to mid stick and make sure the swash etc is level, then set to 0 degrees then set to full throtle and you should have +10 to +11 degrees, i am only going on what people have told me and what i have read.so dont quote me on it(still a newbie myself)

[simon1]

thats what I was thinking 0 degrees, duno wots wrong with it, I havn't got a pitch gauge so its a bit guess work. tracking looks okay on blades, should I increase the pitch using the linkage to either blade? already tried using transmitter knobs, no joy tho.

[antsis]

Generally for beginners and sport fliers, 5-6 degrees is the norm. If your preference is 3D then mid stick is set to 0. However, the way I understand it, the model is spinning up, but not getting lift. This could be due to insufficient pitch, therefore, setting the mid stick to 5-6 degrees is a safe starting point.

[paulcobra]

not sure mate like i said i am still a newbie to this myself, i know i was having problems with my T rex and it turned out the motor was on its way out and lacking power, but not sure what to sujest, wouldnt want to say change this and i turn out to be wrong, so what i would say is try and find someone on the forums thats close to you and ask them if they wouldn't mind having a look over it and point you in the right direction, you'll find that 99% of the guys and girls on here are great and always ready to help. you could do with a pitch gauge realy, at least you can elliminate the pitch from the equasion then. sorry i carn't help anymore that this.

[paulcobra]

Generally for beginners and sport fliers, 5-6 degrees is the norm. If your preference is 3D then mid stick is set to 0. However, the way I understand it, the model is spinning up, but not getting lift. This could be due to insufficient pitch, therefore, setting the mid stick to 5-6 degrees is a safe starting point.

like i said i am still a newbie and all the reasearch i have done says 0 degrees, not saying i am right or anything, just thats what i have read.

[Bugster]

Best to get a pitch gauge - they are cheaper than a crash - and work from there I reckon

[simon1]

just purchased a pitch gauge from ebay, a few quid hopefully this will give me a hand, thanks everyone for trying to help, if its not the pitch thinking something kaput!

[paulcobra]

after the pitch my next move would be the motor( i know its gona cost a few quid but at least you'll have a spare if it isn't the motor). should get a motor for about a tenner of ebay. something like the king 2 motor should do you, just make sure its brushless.

[Si Goodchild]

Right, I'm using MiniPred knowledge here but it should suffice as a neon blaze is basically the same heli only with a motor driven tail. If the head is spinning up as quickly as before (you should be able to hear this) then don't waste money on a new motor yet as we need to sort the pitch problem first.

First, disconnect the motor from the ESC as mentioned before and check that the swash plate is moving with the cyclic stick correctly (pm me if you're not sure how this should move). Next apply throttle/collective and see if the blade pitch (angle of attack) increases relative to the flybar and is the same for both blades. If this angle isn't increasing as you increase the throttle/collective then we need to understand why. First increase the dial on your tx marked "PIT" to max and re-check. Then change the dial "PLT" to max and see what happens. If there's still nothing then check that the servo at the bottom of the mainshaft is moving: it controls a thin steel wire that runs up the middle of the main shaft and controls collective pitch (this is a mechanical mix helicopter not an eCCPM, so the swashplate doesn't move up and down with collective).

If the servo is moving then check for a mechnical fault like a slipping wire or broken ball-link. Fix this then re-check everything. If the servo isn't moving then check that it is correctly connected to the rx (channel 6, I think). If that doesn't fix it check that your tx is set to the correct mode (my mini pred radio could be set for mechanical CCPM, eCCPM, aeroplane or v-tail modes, you need ordinary helicopter or mechanical CCPM.) If the servo still doesn't move then temporarily connect one of the other servos to that channel to check if there's a signal there (the servo may be dead).

Let us know how all that goes and get back if you still don't have lift-off.

Si G

[Bugster]

...then check that the servo at the bottom of the mainshaft is moving: it controls a thin steel wire that runs up the middle of the main shaft and controls collective pitch (this is a mechanical mix helicopter not an eCCPM, so the swashplate doesn't move up and down with collective).

Just checked my Century UK Neon Blaze and it's got 3 conventional servos connected to the swash. It moves up and down with collective. No wire running up the mainshaft. In fact just the same arrangement as my HBK2 and HKH-450. So I guess there are different types of Neon Blaze around

Cheers

Bugster

[Si Goodchild]

... I guess there are different types of Neon Blaze around...

Probably not. I was told this by a dealer over the phone, when I started out last year, that Neon Blazes were the same heli as Mini Preds except for the torque tube tail drive on the MiniPred. Guess I was sold duff info.

Si