Extreme Flight 78 inch Extra 300 V3

The v3 version of the Extra 300 78 inch brings 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.

The 78 inch Extra can be set up for anything from super lightweight 3D to massive power for huge precision manoeuvres. For the lightest electric setup, use the XPWR 35CC motor and a 21x10 electric prop. 12S 3300-4000mah will get you the floatiest feel in the air.

For even more power, choose the XPWR40cc, this is a good choice to fast sport flying or sequence flying with extreme upline power. Use a 22x10 electric prop and 12S 4000-4400mah lipo. For either of these XPWR motors, use 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 Extra is perfect with either the DA35 or the GP38 and 20x8 or 20x9 prop. The Extra 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

Specifications

• Wingspan: 78 inch (1,981mm)
• Length: 78 inch (1,981mm)
• Weight: 12.5-13.5 lbs (5.7-6.1kg) gas
• Wing area: 1,224 sq in (79.0 dm²)
• Spinner: 3.5 inch
• Centre of gravity: 5.5-6.25 inch (140-168mm) from the wing leading edge at the root
• Engine class: 35-38cc

Recommended Set-up

Gas:

• Fuel tank: FlowMaster 14oz (414ml)
• Prop: carbon gas 20x8 (Desert Aircraft DA-35) or 20x8 / 20x9 (GP-38)

Electric:

• Motor: Xpwr 35cc-40cc
• ESC: Castle Creations HV-120 Edge (firmware v4.22)
• Battery: two 6S 3700-4400mAh LiPos in series (12S)
• Standoffs: Blazing Star large
• Prop: Xoar 21x10 or 22x10 electric

Servos, Arms & Extensions:

• 5 full-size metal gear high-torque servos such as Savox 1270
• 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
• 4x Extreme Flight 20 AWG 6 inch extensions – Rx to ailerons and Rx to elevators
• 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
• 1x Extreme Flight 20 AWG 36 inch extension – rear rudder (not needed for forward 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