125" Extra 300 V4 Plus - Orange/White 3.35m

Extreme Flight's aerobatic models are loosely based on real airplanes, with the designer allowing himself a number of modifications to create a model with a unique appearance and flight performance. The designation EXP has nothing to do with the actual aircraft, but is an abbreviation of the words "Experimental Progressive". This designation was chosen because the Extreme Flight models use several advanced design and aerodynamic concepts. In the lightweight construction, which is based on balsa and plywood parts, carbon and glass composite materials are used generously - and in the right places - to achieve high strength and stiffness of the kite at a minimum weight. The result is a robust model capable of handling a wide range of aerodynamic loads, yet light enough to achieve high performance.

The perfectly sprayed laminate engine cover and aerodynamic wheel covers, as well as the option to choose from several color schemes of the ULTRACOTE (=Oracover) high-visibility iron-on foil cover, will give you a model that you will be rightly proud of at the airport. The combination of all these modern elements creates a model that pushes the boundaries of modern aerobatic flying. Extreme Flight models excel in all modes of modern aerobatics including slow 3D low altitude aerobatics, fast and aggressive extreme aerobatics and classic precision aerobatics.

Sports semi-model aerobatic aircraft version 4 for 180cc gasoline engine drive for experienced pilots for flying classic precision and extreme 3D acrobatics.

V4 Plus brings, in addition to the well-known plywood structure overlaminated with carbon fabric known from previous versions, an aluminum quick-release system for the wings, cabin and height rudders. So you can assemble the model at the airport in a few minutes without the use of tools.

The fuselage of the model is a classic construction of plywood and balsa laser cut parts with composite reinforcements with a removable laminate engine cover and a removable upper fuselage with a cabin for perfect access to the propulsion system and RC equipment. The engine is fixed in the rear assembly on a plywood box bed.

The two-part wing with a symmetrical profile (the halves slide from the side onto the carbon tube coupling) is also a classic construction with an all-balsa hard cover. Ailerons with a large area are controlled by 2 pairs or triplets of servos.

The tail surfaces are lightweight all-balsa construction, the VOP is two-piece with the stabilizer halves slid onto the carbon tube. The elevator halves are controlled by servos stored in the horizontal stabilizer with short straight rods. You can control the rudder either with one or two standard-sized servos located in the tail (more convenient for achieving the correct center of gravity position when using stock expansion dampers), or with cable drives of 1-2 servos located in the cabin area (more convenient for achieving the correct center of gravity position when using tuned dampers) . The entire model is coated with ULTRACOTE iron-on foil (this is the brand name used in the USA for the well-known Oracover foils).

The chassis is a spur type with carbon main legs, wheels with laminate covers and a wire spur with a carbon bracket mated to the turn signal.

For propulsion, you will need a 180 cc two-cylinder gasoline engine (eg GP-178).

At least a nine-channel computer RC set is suitable for controlling the model - the ability to accurately set "paired" servos and program double and exponential deflections in the right size is essential for flying acrobatics - classic precision and extreme 3D.

Servos that are fast and very strong in a standard size will do - eg Hitec Hitec HS-7950TH, D980TW or HSB-9381TH and one standard servo for throttle control.

Kit includes: iron-on foil covered fuselage, wing and tail surfaces, sprayed laminate engine cover, complete set of accessories, carbon chassis, spur, wheels and instructions.

Dimensions and weight of transport boxes:

Hull: 255x66x54cm; 20 kg

Wings: 153x80x20cm; 6.8 kg

Engine cover: 48x46.5x43cm; 3.1 kg

Notice

According to Commission Delegated Regulation (EU) 2019/945 of 12 March 2019 on unmanned systems and third-country operators of unmanned systems and Commission Implementing Regulation (EU) 2019/947 of 24 May 2019 on rules and procedures for the operation of unmanned aircraft, operators and pilots of unmanned flying devices (classic aircraft models, multicopters, drones) that weigh more than 250 g or carry a camera or other sensor capable of capturing personal data in any way are required to register (in the Czech Republic with the Civil Aviation Authority) . More information can be found here: Registration of drone operators and pilots

Span [mm]	3175 - 3353
Length [mm]	3116
Weight [g]	18600 - 20000
Wing area [dm 2 ]	176.9 - 181.2
Controlled functions	S,V(2),K(2),M
Difficulty of construction	S2
Difficulty of piloting	P4