Synergy N5C Flybarless Belt Drive Kit for a first nitro?

[Chris Sexton]

so... do you guys use something special to mount fbl (brain)? or default red 3m tape works? maybe 2 layers?

I use two layers of 3M Gel tape mounted right to the top of the servo box. No issues with vibs at all.

[rimaarts]

shiiish... today is NOT my day... :/ unpacked my sullivan starter... bolted on robbe shaft... and bent/cracked sullivan shaft...

in all the excitement,i did NOT think that if the sulivan threaded shaft diameter is a touch smaller than my starter shaft diameter, it will create MASSIVE vibes!

thankfully autoparts shop near me helped to fix it up... thing is that apart from swapping sullivan shaft out completely, im getting more vibes than i would like... namely we had to file shaft down after cutting and we filed a bit too much.. i still can hold it in my hand, and if i put my hand on the starter shaft end, vibes are NOT extreme, but still... any way to swap sullivan shaft out completely?


p.s. i just need to finish setting up throttle limits in brain, and after that  im thinking to still go on with a test firing my os55 tomorrow, weather permitting...

[rimaarts]

i have a very stupid question... on os55 carburetor, there is 3 markings... 9, 10.30 and 12 o'clock... am i right that 9 o'clock is fully closed and 12 is fully open?

[Jon Mills]

Correct the carb is fully open when the arm is all the way forward to the nose of the machine.

[rimaarts]

well... that saved me new clutch... had to reverse throttle...


no luck with my 'maiden'... went out to start engine... clutch coupler(that thing you put starter shaft in) slipped... + was cranking engine with pinched fuel line +disconnected vent line... shiish talk about remembering new things...

went out second time... and best i could get is faint smoke trail from pipe...

so... im going to try explaining...

my throttle trim is so that on full bottom trim carburetor is closed completely...
both engine needles is 2 turns out and idle screw is neutral (as per manual)

i prime engine, pushglo on, and while its beeping try starting it... i get a very feint smoke trail which goes on even when pushglo beep is off for as long as starter is on... the moment starter is off, smoke ends...

i tried with neutral trim, full trim and even throttle stick raised a couple milimeters...

how much is safe to raise throttle before getting a hot start?
im thinking if my glow plug would be bad i would get no smoke at all, no?

2 things i did not check...

if im actually getting fuel to carburetor... (im using all black hayes fuel line..., but on the other hand, if the fuel would not get to carburetor, i would get no smoke, no?)

if im having any leaks...


i know its something i have done wrong, i just soooo hate looking for my mistakes when i barely understand what im doing lol...

[Chris Sexton]

If you look at the carb. There are notches for bowl position. First notch is closed, then three notches for you half range and another notch for full open.  My OS55 starts and idles with the throttle about 1/4 of the way to the first middle notch. On my TX its a Throttle value of about 10-13 depending on the TX/RX calibration.  Takes more than a few clicks.  Is the engine develops a deep cranking sound you have your throttle open too far.

Take a look at this video I show you were my Throttle bowl is at idle. Jump to 18m52s to see my throttle bowl range.

Team iKON - Nitro Gov Basic Setup

[rimaarts]

ill watch your video once more! possibly its just dumb case of not giving enough throttle! thank you! tomorrow first thing ill try that!

[rimaarts]

problem solved... it was pushglo fault... went to a friend, he tried remote glow ignitor, and there she went! purred like a kitten on idle! altough it was getting dark and i did not finish setting my throttle/pitch curves i could not hold myself back and took it up for a little hover! i was so excited i dont even remember was there anything wrong! just... its SO loud! im not sure i can fly it in near parks... :/

another 2 snags... i can not figure out how to activate bank switching on futaba r6303sb... :/ on my another rx i just activated aux 2, but there is no aux 2 on this rx... (i could bind it only in 'multi' mode, whatever that means! )

another snag is... the moment i press activate governor in brain, my throttle servo slows down to a crawl...

[Chris Sexton]

I run banks in 6303 rxs on all my birds. Multi mode is correct. Just go into functions and set aux2 to channel 7 and then pick a switch.

As for the gov servo being sloe that is because its looking for rpm change. When the engine is running it will react normally.

sent from my Verizon Samsung Galaxy Note 2

[rimaarts]

dooh... futaba is too complicated lol! thanks for telling me that not only i can assign function to switch, but also function to channel lol!

hmm... i figured it might be so about slow servo, only governor experience i have had is with castle esc, and there is no throttle servo there! thanks!

so far i tried setting 1550, 1750 and 2050 headspeeds... i know there is too much difference between them but on my protos i like to have 1 very low headspeed, 1 very high and 1 in the middle...

[rimaarts]

so.... today was a very frustrating day, but finally n5c was airborne for more than 10 seconds!

first i went to the field just to find out that my glow driver is discharged (pushglo was faulty also)
second time arriving at the field, my starter battery was nicely left at home charging...

third time, upon starting i got a soft hotstart (clutch was grabbing, but enough time to lower throttle trim)..
as strange as it seemed to me, as soon as heli left the ground, i was instantly comfortable with a tail in hover! (field was too small for circles and turning)... did couple climbouts, tested headspeeds (i dont hear THT much difference between 1550 and 2050, so i think something is wrong with gov?) hit throttle hold 2' off the ground, hang time is incredible... but when heli landed, idle was very high(around 1rep per second).
turns out i couldnt touch exaust or backplate for longer than a second (i think it was way too lean).

another outing... my remote glow driver was not glowing...

both needles was 1.5 turns

[Mike King]

Just for clarification, you don't want to be touching the muffler on a nitro.  That's a quick way to give yourself a nice burn.  As for checking the backplate temperature, did you do this while the motor was running or after you had shut it down?  You'll want to do it with motor running if you can as once the motor stops, the cooling effects of the oil in the fuel and the air from the fan will no longer be available and the motor will be hotter to the touch than it is during normal flight.

[Jon Mills]

+1 Kinger.  I would also tell you that if your breaking in the motor turn the gov off for the first at least gallon or so.  Gov's will mask problems its better to get the mix right. A good trick is to take off and clean the motor,  then set it back down and pinch the hose off.   The engine should continue to idle for several seconds before increasing rpm and dying. If it doesn't your way too lean.

Switchglo is pretty reliable, did you set the dip switches? is it hooked to the receiver, does it beep when you power up your electronics? Lastly when you turn it on it should beep the entire time if you have the buzzer switch set right.

[rimaarts]

pushglo (not pushglo pro) did beep continously. well, im asuming its not working because glowplug had just a tiny bit redd-ish glow with pusghlo and a very bright red glow with glo adapter... (and with glow adapter engine starts relatively easy, while pushglo best i could get is faint smoke trail from exaust... (i took the heli to my friend who is flying only nitro helis, so it is not just my opinion...

i actually ordered gryphon ignition booster (gryphon version of pushglo pro)..

ok, now when i see that gov was working, what throttle curve would you suggest for non governed flight? 70-80%

[Rodney Kirstine]

It could be that the pushglo wasn't getting a really good ground.