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e-E-Sky Honey Bee- Lama- Belt CP- E-Smart > Initial Setup...
 
 
Jerry In Maine
Senior Heliman
Location: "Downeast" Maine

Well it's in the air - to some extent. It'll come off the ground at about 90% stick despite the proper pitch settings. I think I might not be getting full power from the ESC, so I'll have to play with it for awhile. Wrote an email to Castle to see if they can help.

Basic problem now is that the red light on the ESC comes on at 75% stick - and I'm not sure but it sounds to me like the motor isn't getting to full speed. I have a tach and will perhaps try pinning the heli down with something and running it at max and take a reading.
01-11-2008 06:20 PM
 
 
Jerry In Maine
Senior Heliman
Location: "Downeast" Maine

Tried setting the ESC to governor mode. I was able to get the headspeed to around 2300 rpm. At full throttle the heli will just lift it's weight off the training gear and I could drive it around - but that's it - no higher.

The governor seems to work well - the tach would stay fairly steady from about 1/4 stick up to max.
01-11-2008 08:10 PM
 
 
slider46
rrProfessor
Location: Gloversville, NY

What is your pitch setting low mid and high stick???? Sounds like you have a problem with your pitch curve in the radio...

Tom..... No "D" flying....
01-11-2008 09:40 PM
 
 
Jerry In Maine
Senior Heliman
Location: "Downeast" Maine

Range is -2 at low stick, 0 at mid and +10 at the top. Measuring this with a pitch gauge.

To set these I put the gauge on the blade - lineed it up on the 0 marking and set the throttle to mid stick. I then adjusted the radio's pitch curve's center value until the top of the gauge was level with the flybar.

Then set the gauge to -2, move the stick to the lowest position and adjusted the lowest point on the curve unttil the gauge was level with the flybar.

Ditto for +10 at top stick and the curve's highest point.

I can get the head speed up to about 2500, so yep, I'd think the problem would be related to pitch as well, but it looks right to my unexperienced eyes...
01-11-2008 09:54 PM
 
 
slider46
rrProfessor
Location: Gloversville, NY

Something is wrong if you have the pitch set right and that high of a headspeed. You should be able to hover at 5/8 to 3/4 stick... Does your main shaft have up and down play in it???

Tom..... No "D" flying....
01-11-2008 10:00 PM
 
 
Jerry In Maine
Senior Heliman
Location: "Downeast" Maine

No up/down play...
Are there any common mstakes omne can make when setting/measuring blade pitch? This is the first time I've done it - but seems to be a pretty straight forward operation.
01-12-2008 12:10 AM
 
 
fenderstrat
Elite Veteran
Location: Aston,Pa

Quote 
To set these I put the gauge on the blade - lineed it up on the 0 marking and set the throttle to mid stick. I then adjusted the radio's pitch curve's center value until the top of the gauge was level with the flybar

this has me a little confused.....what are the exact numbers of your pitch curve??

edit...it sounds like you are adjusting the swash to the blades...you need to adjust the blades to a level swash at mid travel

PerformancePlusRC field rep
COMPASS helis field rep
Mini Titan/SE
HBK2
Futaba FASST
01-12-2008 12:12 AM
 
 
toolman18
Key Veteran
Location: Portland, Texas

5 degrees pitch

The heli should hover with 5 degrees of pitch. If you hook up a receiver battery, unplug the esc, then run up to 5/8 to 3/4 throttle and set pitch to 5 degrees of pitch it should be correct. try and see.
Brad

We need video proof around here.
01-12-2008 12:25 AM
 
 
fenderstrat
Elite Veteran
Location: Aston,Pa

this doen't need to be this complicated
with motor disconnected..or throttle hold
1 set throttle stick to half
2 set middle point of the pitch curve to 50(some guys for set up purpose only set the 3 middle points on the curve to 50 so if the stick is anywhere near middle you are good
3 put the swash(no links )halfway through its travel
4 with servo arms at 90deg adjust servo links to connect with the swash so it is level at the halfway point in its travel,make sure washout arms are level
5 adjust the blade grips so both blades have 0 pitch

you now have a set up so 50 on your curve is 0 pitch

set your curve to 0-25-50-75-100....check for min/max pitch and adjust the pitch in the swash menu to get desired pitch

set your normal pitch curve to 40-45-50-75-100.....-2 to10 deg pitch..

go fly have fun

PerformancePlusRC field rep
COMPASS helis field rep
Mini Titan/SE
HBK2
Futaba FASST
01-12-2008 12:40 AM
 
 
Jerry In Maine
Senior Heliman
Location: "Downeast" Maine

the pitch curve numbers I came up with for the pitch values mentioned above are 48, 50, 55, 70, 100

I'm not saying it's complicated - just saying what's happening. It either works or it don't, and in my case, at least thus far - it don't.

Thanks for the help. I'll keep fooling with it.
01-12-2008 12:41 AM
 
 
fenderstrat
Elite Veteran
Location: Aston,Pa

if 55 is your setting at 0 pitch than at 70 you only have 3 deg of pitch9AT 3/4 THROTTLE)...not enough to hover....read my above post and re-do your set up

PerformancePlusRC field rep
COMPASS helis field rep
Mini Titan/SE
HBK2
Futaba FASST
01-12-2008 12:46 AM
 
 
Jerry In Maine
Senior Heliman
Location: "Downeast" Maine

Root problem may have been with the blade grip adjustment. When I followed the steps you listed the pitch was at mid-stick was -5. I adjusted until they were at 0.

Trans battery went dead - had to stop and put it on charge. I'll know if it's finally in-line tomorrow.
01-12-2008 01:25 AM
 
 
Jerry In Maine
Senior Heliman
Location: "Downeast" Maine

It flies. Hovered it for a few seconds in the living room but got threatening looks from my wife. If the weather clears I'll take it outside.

From what I can tell the links to the blade grips were initially way out of wack. Checking those was the step I was missing in setting the pitch. Once I adjusted those to get 0 everything else fell into place. The heli starts to roll around on it's training gear at 1/2 stick and is in the air and hovering at just about 3/4 - maybe a bit less. I can tweak this later. Tracking is very good. No bad vibs or shakes. I've not hovered a heli in some time and I was fairly comfortable with it in the air in a between the couch, bird cage and TV.

Initial headspeed was in excess of 3000 at 80% on the curve. I adjusted it for just under 2400. Is this correct? Trying the governor mode throttle on the Phoenix 35 and it seems to work well. Using 0-60-60-60-60 for the pitch curve. I've read that governor mode throttle isn't popular - curious as to why as it seems to work well, at least on my ESC. My only complaint is that it spools up the head a little slower than I'd like - but that sorta gives me a chance to "strap in" and get a grip on what's about to happen. Bet it's easy on the gears too.
01-12-2008 02:28 PM
 
 
fenderstrat
Elite Veteran
Location: Aston,Pa

so whats the update??? is this thing flying properly now???

PerformancePlusRC field rep
COMPASS helis field rep
Mini Titan/SE
HBK2
Futaba FASST
01-13-2008 04:12 PM
 
 
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e-E-Sky Honey Bee- Lama- Belt CP- E-Smart > Initial Setup...
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