newish newbie. dont buy cr*p

[pegasusuk]

hi all just joined the site. looks like i should find everthing i need here.
heres the beginning.
after flying the bell 47 contra i got hooked but soon got bored
a couple of rtfs later (twister cp v2 and mini pred), realised i shouldve took more advice and saved my money.
just got the trex 450s cf kit , jr x2720 tx and sl420 giro. any comments on this kit would be welcome. not even thinking of wrecking this till i've simmed myself silly , also phoenix flight sim which again i shoudve got much earlier(ignored advice again) any really newbies listen up !SIM SIM SIM SIM SIM SIM SIM.

[Biggles]

First of all welcome!!!!!!

I would've probably gone for the se or se v2 if funds allowed.
but that's only my opinion saves money in the long run instead of going down the upgrade path.

Which sim do you have?

MUST LEARN TO READ POST FULLY.

DOH
no need to answer that one phoenix I see

[pegasusuk]

450 se

funds limited especially since i havent sold the other tosh yet
must get ebaying
when you say upgrade is there a performance difference
the heli shop told me the only difference between s , se and sev2 was bling. or were they just triyin to shift old stock
1 other q. if anyone can enlighten me .
set up my tx for 3 servo 120 degree ccpm and the sim 450 went off like a demented chicken. glad i tried that on the sim . also cant seem to get a negative on my pitch curve settings.
sorry to bombard everyone with these but i hadnt realised just how much was involved . this learning curve could be a little longer than i thought lol.
thanks

[robgt]

It's certainly not a shallow learning curve
Sims don't use CCPM - your sim model memory on your Tx (use a different model memory for your sim than your main helicopter so they don't interfere with each other).
Your sim setup on the Tx needs to use standard mixing instead.

How are you measuring the pitch on your heli?
Do you have a pitch guage - if so, what are you seeing currently, and what are your pitch curve settings?

Cheers,
Rob

[Biggles]

The se will fly more accurately due to more precise parts 'bling' and they tend to not suffer with slop that creeps in with usage.

But what matters is that you are having fun!

The settings on phoenix need looking at, headspeed, control throws etc, etc, etc,etc,etc. The list goes on.

I am sure the peeps on here will be able to give you some guidance with the many many variables that you will encounter.

Do you have a club near you???

[pegasusuk]

thanks for that . thought i had probs there. now set up a model just for sim. works a treat.
not measured pitch yet . havent even put the kit together. decided to learn from past mistakes(costly) and make sure i know what i'm doin first regarding heli and tx setup . before the rex comes out of its box. its sooooo hard . i just keep lookin at all the bits .then force myself back to the sim. if a pitch guage is a must then i'll get one. anyone have any opinions on the tx or giro mentioned above. just want to check the advice of the heli shop. thanks again .

[pegasusuk]

club

dont know about club but im sure gonna find out
one thing i know is that as a beginner you cant do this alone
my bank manager will verify that

[robgt]

This confused me...

also cant seem to get a negative on my pitch curve settings

I guess you're looking at the figures in the pitch curve on the Tx?
How it normally works is something like this:

You have 100% movement of the stick from top to bottom (0% at the bottom and 100% at the top). If your Tx has a 5 point pitch curve, you will have 0, 25, 50, 75, 100 as a basic linear curve by default.
When you setup your heli's pitch, the 50% mark (mid-stick position) will represent 0° of pitch (no pitch). Between 0% and 50% (bottom up to mid stick positions) will move your pitch from -10° at bottom stick, up to 0° at mid-stick.
Between 50% and 100% (mid stick to top stick positions) your pitch will go from 0° at mid-stick, up to +10° at top-stick.

The idea being that you mechanically setup your heli with -10°, -5°, 0°, +5°, +10° and then tune it down on your pitch curves as needed.
So if you wanted just a little negative pitch, maybe -2°, when first learning to hover, your pitch curve might go like this: 40%, 45%, 50%, 75%, 100%, to give you roughly -2° at bottom stick to 0° at mid stick up to +10° at top stick positions.

Understanding curves on the transmitter and their correlation to the mechanics of the heli can be hard to grasp at first. You're basically controlling how far the servo can move - but that can get complicated when CCPM (3 servos for pitch) comes into play, so lets not go there just yet

I hope this helps a little.
Cheers,
Rob

[pegasusuk]

pitch

ok i get that but if i wanted a basic hover and a 3d model on my tx that would mean altering the heli phisically when switching between the 2 as both curves would go 0 to 100 percent or am i just being stupid.
like i said didnt realise how much...............

[robgt]

No, one mechanical setup is enough.
You would use IdleUp (or Stunt mode as it's called on some Tx).
This gives you the ability to set individual pitch and throttle curves that you can switch between.

Example curves:
Normal mode: 40, 45, 50 , 75, 100 (Pitch curve percentages)
Gives you: -2°, -1°, 0°, +5°, +10°

IdleUp1: 0, 25, 50 , 75, 100 (Pitch curve percentages)
Gives you: -10°, -5°, 0°, +5°, +10°

Clear as mud?
Cheers,
Rob

[pegasusuk]

sorry did't let your last post sink in before replying . i understand know thanks

[robgt]

Hey cool
Glad it helped.
Cheers,
Rob

[pegasusuk]

sorry was typing my reply before letting your answer sink in. ( note to-self. patience) i understand now. just found the setting on phoenix . its starting to come together. is it realistic to think i can set up tx using sim or will it be completely different in the "crash means cash" world. ta

[robgt]

It's a bit different, but some elements are the same so it's a good learning exercise too.

It might be worth your while downloading and watching the Finless Bob videos on setting up a Trex and transmitter to fly it - it's not the same Tx as yours that he uses, but the principles are identical.

http://www.helifreak.com/viewtopic.php?t=12455

Cheers,
Rob

[pegasusuk]

ta

thanks rob . some really useful stuff there . videos look good
youve given me some thinkin to do so ill give you a break for now
until i release my next barrage of q.s
great to have people out there who are willin to spend time to help us rookies