Lepton Gyro/Servo question

[rbarnett]

I just got a Logictech 2100/3100 combo, and wanted to use it on my Lepton. Does the 3100 servo have enough power for the tail with 68mm blades? I do have a Futaba 9650 I could use, but really wanted to use the 3100 if possible. I fly mild 3D.
Bob

[Jafa]

The Lepton tail is a tad weak and the 2100 is not much better than a 401
It will blow out when you add collective and the tail is already under pressure

You need to get your head speed over 2800 and use ~68mm tail blades
That works very well - tail is fine

No idea about the servo

[rbarnett]

I decided to go with a Futaba 9257 instead. Thanks for the reply though. Will this servo be overkill for this heli?
Thanks

[Jafa]

Definitely not - I have a Spartan and a S9257 on mine

[houstonrevo]

I am building a lepton again (used to have one but sold it about a year ago). I am giving the 63T pulley a try to speed up the tail. Hopefully it will be solid. I am using 770 3D and 9257

[toyturbo]

where did you get the 63t pulley?

[houstonrevo]

http://www.world-of-heli.de. It is a german site. Apparently they sell a lot of Hirobo stuff and they custom make 63T pulley. It looks really good (look stock). I can only tell mine is 63T by putting next to a stock one.

Their communication is not the greatest but I got the pulley about a week later so no complaints from me.

[Tmblewd]

houstonrevo - Have you flown your Lepton with the 63 tooth gear yet/? If so, how do you like it?

[houstonrevo]

Just hovered it and did some punch out and I have to turn the gain down to about 20 on HH and still get some bounce back. I am using the 7703D and the KBDD tail blades. I am going to try some shorter blades because I have heard finless cutting down the KBDD blades for the protos to get rid of the wag/bounce.

I can tell the tail is a lot more powerful from that stand point. Still have to play with it more to get it to my liking

[Jafa]

The plastic tails don't stop crisply like carbon tails do

[houstonrevo]

Where do you find carbon for the lepton? I have a hard time finding them.

Thanks

[Jafa]

I got mine from ReadyHeli but they don't stock them any more

[Tmblewd]

I just got a set of Radix 72mm tail rotor blades from Grand RC. They look sweet. I also go the Radix 430mm main rotor blades. I just haven't had a chance to fly them yet. It's been real windy here and now it's been raining all night.

[houstonrevo]

Anybody have any luck getting 7703d to work good. I need to know the servo arm length and gain.

I am at 13mm and travel adj on the gyro is about 1/8 turn from max out. I either get wag with the tail holding well on punch out or no wag but tail not lock in on punch out.

I am using the plastic black helidirect tail blades. They are longer than the stock ones.

Thanks

[Jafa]

What headspeed are you running?
You need like 2850rpm to get decent tail holding on the Lepton

[houstonrevo]

Thanks,

I will have to tach it. I don't think I have high enough head speed. But will low head speed cause the tail to hunt?

[Jafa]

Because the 770 does not have any settings other than gain
you have to attack the bounce with mechanical changes

So a good head speed and 68mm tails are the go

Go in as far as you can on the tail servo horn
but you may need to try a full size tail servo

Are you running a decent amount of expo on the rudder? Like 40%?
You need to - that has the same effect as softening the stop
And make sure you smoothly return the rudder stick to center - don't just let go

[nwmartin]

Can Align 500 tail blade work on the Lepton EX

[Tmblewd]

I don't know if the Align blades work, but I know for sure the Radix Blades won't.

I bought some Plastic 68mm Tail Rotor Blades for my Lepton, they seem to work really well. They are soft though, if you hit a rock they chip. Pics are in this thread: https://www.helifreak.com/showthread.php?t=132308. World-of-heli in Germany has some pretty decent carbon tail rotor blades for the Lepton. I haven't had a chance to try them out but they kinda look like the ones ReadyHeli used to sell a couple years ago.

[corona007]

After 2 years of fighting this thing I finally got the Leppy set up properly and she is just solid in any maneuver. Honestly I cant believe the performance I'm getting with my set up!
I really really recommend the 63T tail gear, It will bring everything to life!
Set up: HS Idle1 2750 Idle 2 2800 governed
GY 401
CC 85 hv
Madusa Bec
63T Tail gear
Scorpion 1000Kv , Had a Hyperion -10 but cooked it during a set up
20T pinion
Align 425 mains
Rave Plastic tail blades! 60MM. I had the KBDD T-Rex 500 70mm and they seemed like clown feet (floppy), With the 60MM they just seem to cut into the air and hold.
TP 3850 V2
I was going to sell it and give up on it, But now she rocks now and I'm keeping her!

Thanks to Jafa for all the input too!