Product Details

The E-flite® 4-Site 3D FF is a biplane alternative to the extremely popular Eratix 3D FF that offers the aggressive aerobatic plus smooth sport and slow-flying performance of similar class models – without all the hassles of buying components for and building one because it bolts and snaps together in no time!

Key Features

• The easiest to buy, assemble and fly biplane flat foamy model yet – capable of slow cruising, sport flying, basic and all-out 3D aerobatics
• Specially tuned brushless motor that’s factory-installed and ready for use with popular 3S 850–1000mAh batteries
• 30-amp Spektrum Avian™ Smart Lite ESC provides real-time battery voltage, current, RPM and other data via compatible receivers and transmitters
• Spektrum™ AR630+ receiver with fly-by range telemetry and industry-leading DSMX® technology
• Easier to fly with innovative and optional-use SAFE Select flight envelope protection

In The Box

• (1) E-flite 4-Site 3D FF 800mm with:
• (1) Spektrum Brushless Outrunner Motor (installed)
• (1) Spektrum Avian 30-Amp Smart Lite Brushless ESC (installed)
• (3) Spektrum Sub-Micro Digital, Metal-Geared Servos (installed)
• (1) Spektrum AR630+ Receiver with AS3X+ and SAFE Select (installed)
• (1) Product Manual

Needed to Complete

• (1) Full-range 4–5+ channel Spektrum DSMX®/DSM2® compatible transmitter
• (1) 3S 11.1V 850–1000mAh LiPo battery with IC2 connector (or use a suitable IC2 adapter, sold separately)
• (1) Compatible LiPo charger (plus a suitable IC2 adapter/charge lead, including SPMXCA320, sold separately)

Instruction Manual 4-Site Download

E-flite 4-Site 3D FF (Flat Foamy) 800mm Video

Skill Level 2 – Some Experience Required

Skill Level 2 aircraft, like this one, are suitable for RC pilots with the experience and skills to assemble, set up, and fly similar class models. Although the 4-Site 3D FF is easier to assemble and fly than other flat foamy models, it's not a suitable first-ever RC aircraft for new pilots or a first-ever aerobatic/3D model for low-time RC pilots. You should have the experience and skills necessary to successfully fly aerobatic models like the E-flite UMX Ultrix, UMX Timber X, T-28 Trojan 1.1m, Sportix 1.1m, Timber X 1.2m, or other similar class models before attempting to fly the 4-Site 3D FF BNF Basic version.

Exclusive Technologies

This BNF Basic version has exclusive Spektrum AS3X+ and SAFE Select technologies. Enhanced AS3X+ technology works behind the scenes to smooth out the effects of wind and turbulence and deliver an even more locked-in feel than standard AS3X, which makes it seem like you're flying a much larger airplane. Optional-use SAFE Select offers pitch and bank angle limits and automatic self-leveling that can be turned on and off at the flip of a switch! If you don't want to enable the SAFE Select features, simply bind the receiver normally, and only AS3X+ will be active. The receiver is also loaded with a Smart Transmitter Model File that allows you to import all the settings for NX and iX series transmitters during the binding process to be ready to fly in less time than ever!

High Performance

The factory-installed brushless power system features a specially tuned Spektrum outrunner motor. This power system delivers plenty of thrust for unlimited vertical and 3D performance with 3S 850–1000mAh batteries!

Easy Assembly

Unlike other flat foamy models that are only available as kits without power and control components, the 4-Site 3D FF arrives mostly factory-assembled with the power system, servos, and receiver (BNF Basic version only) installed. All you need to do is finish some quick and easy final bolt/snap-together assembly—without the use of glue, tape, or special tools—and you'll be ready to fly in less time than it takes to charge a battery!

Durable Design

Three factory-installed digital servos with metal gears on all the control surfaces, plus construction with carbon fiber and composite-reinforced, high-density EPP, deliver a lightweight yet stiff and durable airframe. In the unfortunate event you damage any airframe parts or components and can't repair them, a full line of replacement/spare parts is readily available.

Product Specifications