E-Flite 4-Site 3D FF (Flat Foamy) 800mm BNF Basic with AS3X+ and SAFE Select
by E-flite

The E-flite 4-Site 3D FF BNF Basic is a compact 800mm indoor/outdoor flat foamy biplane designed to deliver a mild-to-wild flying experience—from smooth sport cruising to all-out 3D aerobatics. Inspired by early F3P and UMX designs and offering a biplane alternative to the popular Eratix 3D FF, the 4-Site 3D FF combines modern performance, durability, and simplicity in one ready-to-fly package.

The factory-assembled airframe is built from lightweight, high-density EPP with carbon and composite reinforcements. It includes a Spektrum brushless motor, Avian 30A Smart Lite ESC, and AR630+ receiver featuring AS3X+ and optional SAFE Select. These technologies offer unmatched flight stability, telemetry data, and flight envelope protection. With no glue or tape needed, the snap-together design makes it faster to assemble than it takes to charge your battery.

Perfect for flying indoors or out, this Skill Level 2 aircraft is a top choice for intermediate and experienced pilots seeking precision aerobatics, fast setup, and robust construction.

Key Features:

• Factory-installed Spektrum AR630+ receiver with AS3X+ and optional SAFE Select

• Brushless power system tuned for 3S 850–1000mAh LiPo batteries

• Spektrum Avian 30A Smart Lite ESC provides real-time telemetry

• Digital metal-geared servos on all control surfaces

• Durable EPP foam construction with carbon fiber reinforcements

• Fast bolt/snap-together assembly — no glue or tape required

• Capable of slow flight, sport flying, and 3D aerobatics

• Landing gear snaps into place for easy install/removal

• Compatible with NX, iX, and other Spektrum Smart transmitters

Specifications:

• Wingspan: 800mm (31.5 in)

• Skill Level: 2 (Some experience required)

• Battery Compatibility: 3S 11.1V 850–1000mAh LiPo with IC2 connector

• Receiver: Spektrum AR630+ with AS3X+ and SAFE Select

• ESC: Spektrum Avian 30A Smart Lite (installed)

• Servos: 3x Digital Metal-Geared (installed)

• Motor: Spektrum Brushless Outrunner (installed)

• Assembly Time: Less than 30 minutes

• Material: High-density EPP foam with carbon reinforcement

What’s Included:

• (1) E-flite 4-Site 3D FF 800mm Airframe

• (1) Spektrum Brushless Outrunner Motor (installed)

• (1) Spektrum Avian 30A Smart Lite ESC (installed)

• (3) Metal-Geared Sub-Micro Servos (installed)

• (1) Spektrum AR630+ Receiver with AS3X+ and SAFE Select (installed)

• (1) User Manual

Needed to Complete:

• (1) 4+ channel Spektrum DSMX®/DSM2® compatible transmitter

• (1) 3S 850–1000mAh LiPo battery with IC2 connector

• (1) Compatible LiPo charger (IC2 adapter or lead sold separately)