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  1. Smoggie

    Trex 550L Dominator

    Yep, the colour coding means nothing on a brushless motor, in fact most ESC's and motors have all the leads the same colour. Getting the motor to spin the way you want is pure hit or miss, it's a 50/50 chance. If it turns the wrong way simply swap ANY two leads like Tony said. The motor itself...
  2. Smoggie

    General RPM question

    Tony, Helical teeth aren't always larger than straight teeth. D.O.G. already said in post #3 that the tooth count was the same. FWIW the tooth size is specified by the 'Modulus' (typically something like M0.6 , M0.8 or whatever) which is the gear diameter divided by the number of teeth. You...
  3. Smoggie

    General RPM question

    If the tooth count is the same then the gear ratio is the same. So RPM should be the same.
  4. Smoggie

    Piro Tuning (Spirit Pro)

    Phil, I've measured up the landing gear: Trex 600 Pro/L landing gear (H70060): Width = 199mm, height (to centre of skid pipe) = 46mm Trex 700e Landing gear (non-F3C) (H70059T): Width = 199mm, height = 55mm I think (but not 100% sure) that the 550 uses the same landing gear as the...
  5. Smoggie

    Piro Tuning (Spirit Pro)

    Phil, Sorry for not getting back on the dimensions, it slipped my mind. I'll measure the landing gear up in the morning.. And yes i meant the tail fin and you are right that the 700 one would probably drag on the deck with the stock landing gear.
  6. Smoggie

    Piro Tuning (Spirit Pro)

    I run 105mm tail blades on my 600 to try to get tail authority back due to the low ratio. The 600 comes with 95mm tail blades so you could try those. I'll measure the landing gear and let you know. The other option is fitting the longer tail skid from the 700 which fits straight onto the...
  7. Smoggie

    Piro Tuning (Spirit Pro)

    Here's a link to the Ultra-guard if you did decide to try one, they are basically a battery backup that takes over supply of power to the receiver and servos in the event that the BEC fails: http://www.optipower.co.uk/Catalogue/ProductDetails.aspx?id=427 They are only about 40g so might...
  8. Smoggie

    Piro Tuning (Spirit Pro)

    Did you fit the longer 600 boom or the slightly shorter 550 version? The longer boom I think does tend to make the 550 tail heavy. Other than moving the battery and everything else that can be moved as far forward as possible there isn't much you can do about the CG without adding weight. The 2s...
  9. Smoggie

    Pre-flight Inspections Are A Must!!!!

    Yes, we all learn from mistakes. Only a couple of months ago I was sitting next to my new Agile 7.2 (700 size heli) at the field making adjustments and I accidentally caused it to spool up!. I grabbed hold of the head and stopped the rotor turning before it had chance to get any speed up, so it...
  10. Smoggie

    450 Lipo get warm when install training gear

    Higher C rating batteries tend to be a little heavier too, but not so much that you would really notice. For my helis I usually pick at least 40C batteries because helis are pretty hard on their batteries, but it depends how you fly, some folk get along fine with 25C.
  11. Smoggie

    Setting up a heli with a DX18

    yes, if it were a flybar heli you would use 3 servo /120 degree, but with FLB the FBL controller (usually) does all that mixing so you dont need the Tx to do it. With the DX18 channels are user assignable but the Spektrum default is: Channel 1 - Throttle Channel 2 - Aileron Channel 3 -...
  12. Smoggie

    450 Lipo get warm when install training gear

    60g won't make a big difference to a 450 class heli. The batteries getting warm is quite normal, larger batteries heat up more than small ones.
  13. Smoggie

    Setting up a heli with a DX18

    I've got the DX18, programming wise it's just like the DX9. Setup is pretty straightforward. When you create a new model just select helicopter as the model type and most of the setup is done for you. You then need to select swash type, for most flybarless helicopters swash type is 'normal' /...
  14. Smoggie

    new member here

    Hi Scarwrench, wecome to the forum. FBL set up can be quite daunting until you get the hang of it. I'm sure you will find help here if you can give all the details.
  15. Smoggie

    450 Binding 3gx problem

    The flashing LED doesnt necessarily mean that the receiver is unbound. If you are in DSM2 mode and if you power cycled the receiver without also power cycling the transmitter then the LED will flash because the receiver 'thinks' that it has suffered a brownout. Did you turn the transmitter off...
  16. Smoggie

    600 Uri's Big bird build journal

    The RC Pro Plus are excellent connectors. I'm just using standard bullets but if it wasn't for the thought of having to swap so many connectors on all my batteries, helis and charging leads I'd swap over to RC Pro Plus myself.
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