View Single Post
Old May 25, 2009, 05:51 AM
Flying Barry is offline
Find More Posts by Flying Barry
Registered User
Australia, NSW, Sydney
Joined Jan 2007
758 Posts
Esky Big Lama (EK1H-E020) Mods & Upgrades

The Esky Big Lama Mods & Upgrades thread with some useful information that will hopefully help others.

370 Motors:
Fit the Esky heat sinks EK1-0224 x 2 or GWS EHS-300 24.3mm Dia heat sinks (Red) x 2 to help reduce the heat from the STD 370 motors.

Servo Arms:
Fit new servo arms and move the push rods (EK1-0371) out to the forth hole then remove the excess from the end of the servo arm and round the corners so they will miss the canopy. This will then give you better forward & reverse control when you are outdoors.

Blades A & B
Stick with the STD Esky blades for now as all of the after market blades that are on the market are too flexible for the Big Lama. The B blades will hit the A blade when under normal flight loaded.

Easy Landing Skid Mod (Stops the main frame from flexing with 11.1V 1000Mah battery holder as well)
From 1mm plastic sheet, cut the plastic sheet to 75mm x 40mm then drill 4 holes in plastic sheet to fit the plastic sheet to the existing Landing Skid screws.
This then stops the main frame from flexing (Motor gears moving away from the Drive Gears) and you can also use the plastic sheet as an 11.1V 1000mah battery holder using some Velcro strap, see below picture.

Swashplate Mod
Remove the original EK1-0367 Swashplate and then fit the EK1-0522 swashplate (Belt CP STD) or if you like the purple "Bling" fit the EK5-0203 swashplate (Belt CP Upgrade). Once you have changed the Swashplate you can then lower the EK1-0363 center Hub Set B to the holes that are located 5mm lower down the EK1-0366 Drive Gear Set B (Shaft) and then adjust the EK1-0371 and EK1-0372 push rods right down to make the Swashplate level.
This will then reduce the risk of the B blades hitting the A blades and give you better Swashplate control, see below picture(s).

Xtreme Productions
The below is the e-mail reply from Xtreme Productions, this will be the go when it happens?

Yes, we are already working on the big lama; we will have a series of tuning parts, just like the small lama. Metal parts, blades, motor, conversion kit, etc

Update from Xtreme Productions

Big lama tuning parts expected release in June

We will put some pictures on our web site this week

Update two from Xtreme Productions (New 12/06/09)

The pictures for the Upgrade Big Lama parts are now on the Xtreme Productions web site, looks good.

Upgrade parts for Big Lama is coming soon:
- Harden Blades
- Extended inner shaft
- Metal Blade grips
- Metal Bearing Housing for Main Shaft

decent-devil 250' MD500 Fiber Glass Fuselage For Big Lama

I found this Fiber Glass Fuselage on the web and notice they have change the main frame around 180 deg to make the push rods (EK1-0371) fit in the Fiber Glass Fuselage. I would say you would then need to reverse the aileron and elevator servo on the TX, see attached pictures and the below spec's and web link.

Suitable for almost all 250 size
helicopters, such as
Walkera BIG LAMA
Gaui EP 200
Arttech / Carson BIG LAMA
E-Flite CX3


*Body length:425mm
*Body width:199mm
*Body height:130mm
*Weight :160g


*Fiber Glass scale fuselage x 1
*Pellucid canopy cover x 1
*Horizontal stabilizer x 1
*Vertical stabilizer x 3
*Mounting Pack x 1

Web Link:

Feel free to add your comments and useful hints & tips

Flying Barry is offline Find More Posts by Flying Barry
Last edited by Flying Barry; Jun 22, 2009 at 02:31 PM. Reason: Update two from Xtreme Productions
Reply With Quote