RC India

Hi all,

As the subject might indicate I'm new to RC and heli. i have recently purchased a 6 channel 450 V2 heli. Its just sitting idle as I dont know how to fly ???. I'm trying to watch the videos trying to understand basics  :banghead:

i need to know if i can atleast connect the lipo and check what moves on the heli when i move a stick on the transmitter. Is this safe ? i'm worried if the blades starts rotating as soon as i connect my lipo. Please let me know

Thanks and regards,
Srivatsa

Firstly it is safe, secondly starting to learn  with heli? Why? Heli doesn't forgive, slightly difficult to start with , no embargo though, in most electrical heli, the motor has a banana slot on one side , you can use a hex or a screwdriver and delink the motor. Lastly you tx should be on before you connect the batt , reason is, say you throttle is reversed, idle will be construed by the ESC as max throttle and will start max throttle determination mode and will beep accordingly until you move your throttle to the opposite end. Also you will know you throttle is reversed. If you can't delink the prime mover from the main rotor drive your best bet is take it outside. My 2C bit.

srivatsa
if you have the time pls visit rcbazaar and the guys will be able to help you with the basics also we have some vids on flying, set up etc... store is in jayanagar 9th block.. this will be just a start let me know if you need any more help and yes the forum here itself is a good place to interact and learn about helis etc..

Sujju, I know where rc bazaar is :) i visited RC bazzar on thursday to get the training ball kit. i'll surely give a visit again. I underestimated this thing  :banghead:

All the wires are firmly fixed. I'm afraid if i remove them i'll not be able to put them back given how delicate they are(looks delicate or my inexperience makes me think so :headscratch:). Morning i'll take it outside the house and connect the battery of course with the tx turned on. And should i center all the sticks. Right one is centered always. Left one can be moved up down this is not centered. (I'm assuming this one is the throttle)

Please let me know.

hi mate.
first thing is if you are worried about wires then take the 'big' blades off in case as said 'it starts'.
the throttle should always be right down and the little slider control at the side of it right down also .
 the other slider controls and stick should be in the middle..
what make and model of heli do you have ??
take the heli and tx with you when you go to rcbazaar.
regards
don

Hi Sir,
This is the model i'm having.
http://www.rcbazaar.com/products/876-450-v2-ready-to-fly-with-transmitter-lipos-and-charger.aspx

i'll give one last shot before taking it to rcbazaar.

hi mate.
a 450 size.....definatly not as a beginner connect inside house
it will destroy the room if start up.
the blades go round at about 200 miles per hour so you don't want them touch any thing . seriouse injury from moving blades.
take it to the shop when you go  and they will advise you how to use it.
get your self a sim to learn on first.
regards
don

Whoa!! Sure i'll not fly them inside. But is it possible to at least see how the servo moves ? without spinning the blades ?

hi mate.
don't get too impatiant..... ;)
it depends on the tx you have . is there a throttle hold switch?
it is all too easy to start these up accidentaly. best is to unplug the motor, just three wires label them first 'A ' ' B' 'C'
label both sets if you are unsure about wiring.
 so a label for 'A' both sides of the connector and so on with all three then unplug them and you will be 'safer'.
read up on lipo battery 'care' and lipo battery 'safety' these are also dangerous items, if treated wrong they can explode. need to be stored in cool, fireproof place and NEVER left to charge where they cannot be watched all the time.
don't switch on the heli with the blades folded...always open out the blades befor switch on.......... or take them off if working on the heli
regards
don

:) just curious.. I'll take it to the shop tomorrow :)

pls do not spool up the heli indoor.. pls invest in a lipo safe bag... pls get to learn on a sim as much as possible before take off...

same as RCbazaar Try on simulator first... when u start with heli, impatient handling of joystick may lead u in trouble just in seconds..

Hi,

i had been to RcBazzar yesterday. Sims are out of stock and i was told it would be restocked soon. Meanwhile i couldn't wait to start my heli. i took it out to the terrace and switched it on with throttle down and throttle cut on.

i've installed the training gear to the landing skids. i tried throttling it up so that it skids on the floor, tried to move around slowly careful not to hit anything.  Heli started drifting moving around even thought i controlled throttle stick ONLY. on some occasions when i increased the throttle it even tilted !!  :headscratch: landing skids balls saved the blades !!.

Questions,
Why does heli drift? i just increased the throttle remaining all sticks are centered. (Many videos on hovering i have seen this happens, so i'm assuming its normal).
Why did the heli tilt ? is this normal ? i never touched the any other stick so shouldn't it just stay perpendicular to the ground! ?

Please let me know.

HI MATE.
as said above why learn on this heli?
a heli is like a child's balloon on a string...... the slightest air movement will move it ...that is wind, drayght and air from the blades you need to use two sticks to control it .
google for RADDS SCHOOL OF FLIGHT'  and follow that.
can you ballance a golf ball on a foot ball for 1 min??................ no????................... that is like a heli.
constant stick movements are needed..
regards
don

Thanks for that. i just need to know its normal for heli to tilt when it hovers (i'm more concerned that settings are not correct or something like that). When i get my simulator i'll start learning on it. but till then i i'll learn on this. I'' try not to push too hard though  :)

hi mate.
you must check the setting first...... a heli will only react properly when properly set up and adjusted.
the store may do that for you .
it takes a couple of hours to properly setup and adjust a heli to fly properly.
you will need
hex allan keys ....1mm 1.5mm and 2mm and one to fit the blade bolts ...depends what bolts are used some are hex some ore Xscrew driver.
a pitch gauge for the main blades,
some soft lock tight for the metal to metal threads on  bolt ...these WILL come loose in flight other wise,
read up on lipo care and safety.....these battery can be dangerous if miss treated.......do not let the volts go below 3.2v PER CELL.
you will only get '8 mins max' fight time from a 12v lipo or it will be damaged and no good any more..
regards
don

going through the RADDS SCHOOL OF FLIGHT i'll understand this and hopefully i'll get some idea about heli setup and settings.

how can i check the voltage of the battery ?.. can i use a multimeter ? i have a 3S lipo . so 3.2 X 3 = 9.6V if my battery voltage drops to 9.6 volts does that mean i need to charge ? is that a correct method or atleast close so that i can manage ?

pls pick up a set of cd's from rcbazaar store... we have ray's helitech series in the store..
to check the lipos voltage you need a good charger (that will show the voltage on each cell ) if not pls invest in a lipo checker which will cost you rs 200

regards
sujju

Sujju  Sir,

i'll do that next time i visit RCBazaar. i hadn't noticed this item earlier.

Thanks and regards,
Srivatsa

hi mate.
yes a multimeter will do the check...if it goes below it will not charge fully .....if at all.
these are totally different battery care to normal round cell type batteries [nicad etc]
regards
don

Thank you, i checked using multimeter. its reading 11.15 ( ~3.7 V/cell, its not so low yet) .. when do you think its a good time to start charging ? Does this battery (lipo) have a memory issues like niMh, nicad batteries?

Thanks and Regards,
Srivatsa

hi mate.
no memory issues with these.:)
the higher the volts in battery the quicker the charge time. :) :) :)
regards
don

@srivatsa:
its an awesum heli. i have the same one. like sujju sir said dont even think of spooling the heli inside ur house with its blades on. one more thing dont at all take it in the air before u put on the skids, u being a beginner will surely crash it. first n the foremost HAVE U PROGRAMMED UR TRANSMITTER??. CHECK ALL THE PARAMETERS  before u hit the throttle. go through the videos on youtube to arrange for removal of static. dont forget to strap ur battery with the straps. :P and the most importat thing is LOCTITE THE TAIL ROTOR GRUB SCREW. when i recieved the heli the screw was loose ,not rcb s fault but such things hav to be taken care . ull be needing a lot of assistance from RCB as ur totally new. i did the same :P .
happy flying!! over and out  :giggle:  :thumbsup:

@rockmania.89
i didn't order this heli from RCB (its exactly the same thought). But, i must thank RCB for the help they are providing. i dont know what this looks like "LOCTITE THE TAIL ROTOR GRUB SCREW" :headscratch: but i think its fine. I had taken it to RCB, person there had a look and told me its perfectly fine.

What is removal of static ? i'm assuming the transmitter is programmed as this came ready to fly  :P how the hell can ppl hover the heli !! it drifts crazy !! :(

srivatsa.. pls PM me your number i will call you soon

hi guys.
ALL metal to metal threads.........nuts and bolts........... MUST be locktighted....... this is a compound you put on the thread 'and allow to dry' befor doing up the screw/bolt ...it helps stop the screw/bolt from 'vibrating' undone ....it will do this if the compound is not used .
there are three types/strengths ........soft. med. and hard. the medium is best as it will unscrew with tool with out too much trouble  or if you have a stuburn one and it is not touching plastic part then heat from the end of a soldering iron will help soften it to unscrew with tool.
regards
don

Hi Srivatsa,

I was the guy at RCB who checked your heli, All the settings are fine for the heli but you will have to check for loctite in most of the joints. As i said when we met up, Plz Plz dont try to fly your heli right now, I believe you are still not very sure and confident of your stick movements and what each movement of the stick corresponds to respective movements in your heli. Best advice is wait for the sims and practice on that, In the meantime you can check for loctite on your joints and practice for a while at the store itself.


I agree with Don and Sujju sir on this. The heli will never remain stable when u give ONLY the throttle, You will have to keep giving appropriate and small amounts of correction from the other stick as well, you'll only realize this after sufficient amount of flying time on a simulator.

Hi Guys,

Thanks for that information. I'll make sure metal to metal joints are tight enough. One more doubt i hooked up the transmitter to the computer and used the software "t6config.exe". It shows the stick moments corresponding to channels. i noticed that as soon as i increase or decrease the throttle (channel 3 i think) channel 2 also changes (Channel 2 corresponds to rudder ) "swash plate left-right movement i believe" . why is that ?

when i cut the throttle and increase the throttle, i however notice that all the cyclic servos move up or down in unison.

@sujju
Sir, i have PM'ed you my number.

Thanks and Regards,
Srivatsa

hi mate.
the heli uses what is called ccpm mixing.
electric mixing.
so all three servos will move to lift the swash plate and alter the 'pitch [ angle] of the blades this is what makes it fly.
I really think you should read up on the principles of heli flight etc as this knowledge is required to fly these models.
the rudder moving with the throttle you may be giving a little left or right movement with the throttle stick when throttling up and down this is common and will rectify itself in time ....experience .. or there may be some throttle /rudder mixing set in the radio.
 these stick are very sensitive to movement .so only small amounts of movement are used on all directions except throttle which is a slow movement.
learning to fly these is a slow process and 'can' take several months to get to just taking off,.......rushing this will only end up in disaster and lots of money and time spent in repairs and possible personal injury.
 a heli if handled wrongly will actualy total destroy it self.
take it slowly, take care, and above all .enjoy it.
regards
don

srivatsa: maday mayday mayday!!! :o  :o  :o   :help:  n then suddenly everyone sees a tiny spot in the sky  8-)................its a bird !! its a plane !! no its sujju sir saving another new pilot .........like me!! :giggle:  :salute:  :thumbsup:

Hi All,

Very sad news. So what the forum and sujji sir tried hard to prevent happened finally. And a horrible feeling :(.  I'm sitting and typing with my shoulder hurt very badly and my heli tail bent.

i really don't know what the hell !! happened.

I Read through radd's school of flight 1st lesson,
Put a square box any was getting to get accustomed with the throttle.
I didn't even raise the throttle to even a quarter. i felt blades were spinning fast. So i cut the throttle and thought its enough risking around. so went close to remove the battery. Before i could remove the battery I felt the servo buzzing and in a nick of time blades started spinning and all hell broke loose.  :(

Transmitter was on throttle down and throttle cut was "on". Still the heli started spinning. i jumped out but not before bruising both shoulders. Blades hit my arms and feels like cold whip hit me :( . in next 30 seconds i could do nothing (Tx throttle was down with throttle cut on what else i could do :( ). Within a min transmitter switched of as battery was low.  >:(  The red light on the TX i should have listened to it :(

I'm suspecting tx battery. Because it was low, ESC generated random signals !! ?? :(  ???

I'm feeling horrible :(
inspecting the heli i can see the tail is bent. I feel this is not my day :(
:(

sujju sir, :( .. i'm watching your build series, look like i have to speed up watching. cant watch my heli handicapped. need to fix it :(

You are  right Tx Battery was the culprit which gave irregualr signals to the Rx to on to the fail safe mode which is at mid stick 0 degrees blade pitch which is why the heli spun up

So in future make sure that your Tx has full battery.

Get well Soon ... :salute:

yes its ur tx battery. brother neva ever go near your heli while its spooling around.  :o
lucky you that u got away just with just bruises .  :salute:............and as far ur heli is concerned ,its just a machine and u can get the spares anytime . take care of ur self .
happy flying  :thumbsup:

Guys,

Should i dismantle the entire heli and rebuild again? i have a feeling it will give me a better idea and understanding. What you guys think ?

Thanks and regards,
Srivatsa

Yes,

It's recommended to rebuild it entirely, Use Trex 450 manual to build it this time.

Please do not start flying unless you are with a trained instructor.

It can be extremely dangerous, read this http://rc.runryder.com/helicopter/t9969p5/ & http://www.rcuniverse.com/forum/m_1645937/mpage_2/key_/tm.htm