Extreme Flight 78 inch Edge 540

The EF Edge 540T design is renowned around the globe for its superior stability in high alpha 3D manoeuvres, making it the ideal platform for learning the basics of 3D flight. It is also completely capable of flying high speed XA, beautiful big sky precision manoeuvres and with reduced control throws, it makes an excellent sport flyer.

The 78 inch Edge now has the latest CNC aluminium wing and canopy latches to this iconic design, for the easiest, quickest setup at the field. Carbon wing tube, carbon stab tube, competition-grade hardware kit with Du-Bro ball links, carbon landing gear, carbon tail wheel, ultracote covering, foil wing bags, and pre-hinged and gap-sealed control surfaces are all included.

We recommend the XPWR40CC motor for the Edge. This gives a great combination of 3D float and big power. Use a 22x10 electric prop and 12S 3700-4400mah lipo. For this setup we recommend the Castle Creations HCV120 ESC with firmware v4.22 ONLY. We provided test motors to Castle during the creation of this firmware version and it is best matched to our XPWR motors.

For gas power, the Edge is perfect with either the DA35 or the GP38 and 20x8 or 20x9 prop. Some of our customers have also used the Stinger 40CC twin, which fits inside the cowl with its angle-plug design.

The Edge uses QTY 5 full-size digital servos, we recommend SAVOX 1270 or 1280 units. For gas power add a throttle servo. For more detailed equipment recommendations, see the spec sheet below.

• Extreme Flight airframes are loaded with premium features designed for convenience and performance:
• Latest Generation CNC locks for fast and secure wing assembly
• Quick install SFG's with machined thumb bolts
• Expertly applied genuine Ultracote covering material
• Pin hinges, pre-glued on all surfaces
• Ailerons and elevators hinge gaps sealed
• Single wire rudder install for easy assembly
• Carbon Fibre landing gear and tailwheel assemblies
• Bubble style wing and stab bags with pockets for SFG's and wing tube INCLUDED
• 3D Printable Gas cooling duct/pressure lip on Thingiverse.
• 3D Printable electric cooling baffles/ESC duct on Thingiverse.

Specifications

• Wingspan: 78 inch (1,981mm)
• Length: 77.5 inch (1,968mm)
• Weight: 14 lbs (6.4kg)
• Wing area: 1,170 sq in (75.5 dm²)
• Spinner: 3.5 inch
• Centre of gravity: 5-5.75 inch (127-146mm) from the wing leading edge at the root
• Engine class: 35-38cc / 12S

Recommended Set-up

Gas:

• Engine: Desert Aircraft DA-35 or GP-38
• Fuel tank: FlowMaster 14oz (414ml)
• Exhaust: 1 inch drop DA-35 header, KS 79-6 (rear exit) or KS 79V-6 (front exit) canister, or KS 1050-5B tuned pipe (MTW alternative: TD-45H canister)
• Prop: carbon gas 20x8 (DA-35) or 20x8 / 20x9 (GP-38)

Electric:

• Motor: Xpwr 40cc
• ESC: Castle Creations HV-120 Edge (firmware v4.22)
• Battery: two 6S 3700-4400mAh LiPos in series (12S)
• Standoffs: Blazing Star
• Prop: Xoar 22x10 electric

Servos, Arms & Extensions:

• 5 full-size metal gear high-torque servos (400 oz/in minimum), MKS HV-1220 or better
• Throttle servo: MKS HV-1250 recommended
• 2x Extreme Flight 1.5 inch single servo arms (3mm) – ailerons
• 2x Extreme Flight 1.5 inch single servo arms (3mm) – elevators
• 1x Extreme Flight 3 inch double servo arm (3mm) – rudder
• 2x Extreme Flight 20 AWG 6 inch extensions – Rx to ailerons
• 2x Extreme Flight 20 AWG 12 inch extensions – ailerons
• 1x Extreme Flight 20 AWG 18 inch extension – throttle
• 2x Extreme Flight 20 AWG 36 inch extensions – elevators and rudder

Shop the hardware: Extreme Flight servo arms · 20 AWG servo extensions

Downloads

• Extreme Flight Spec Sheet (PDF)
• Instruction Manual / Build Guide (PDF)

All Extreme Flight products in the UK are supplied by AerobatX - Official & Exclusive UK Importer and Distributor for Extreme Flight R/C