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Ultra-Light F3P 3D/4D Devil Ray 800mm (31.5") 3D or 4D version Extreme Indoor Aerobatic Trainer (UV-Printed Film Covering)

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Market Price: $129.99

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$84.99

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Availability	20 in stock
Weight	1.50 lbs
SKU	DW-EA0301-Devil Ray 3D/4D

Ultra-Light F3P 3D/4D Devil Ray 800mm (31.5") Wingspan 3D or 4D version Extreme Aerobatic Trainer (UV-Printed Film Covering)

Pre-order sale $45 off! Estimated Arrival Jul

This is an EXTREMELY popular product and quantiities limited and will likely sell out before they arrive, so we STRONGLY recommend pre-ordering if you wish to receive one from the first shipment.

Pre-order today to reserve your model at this special introductory price, Credit Card or other payment will be charged at the time of order.

RWRC is thrilled to present the latest 4D capable F3P Compliant Foam plane, designed by Dancing Wings and at an affordable price (about $50 less than the leading brands!)

This ultra-light aircraft is the perfect fusion of 3D/4D excitement and F3P precision, offering an extraordinary flying experience. The goal with the Devil Ray was to create an aircraft that embodies the best of both blends 3D/4D and F3P (Indoor Aerobatic Model Aircraft) competition planes that are ultra-lightweight, high-precision aircraft designed to fly in confined indoor spaces like gymnasiums or sports arenas. They are built to execute complex, slow-speed aerobatic 3D and 4D maneuvers with extreme exactness. The Devil Ray meets F3P competition rules (max weight under 300g) with a rigid foam structure covered with transparent UV-Film and a flying weight of only 210g!

The larger control surfaces provide superior control authority, while the elongated fuselage enhances maneuverability and stability during slower F3P-style flights. This aircraft opens the door to the exhilarating world of reverse-facing 4D flying, delivering not just a sense of achievement but also an undeniable wow factor.

KIT Features:

Enhanced 3D/4D Aerobatic Performance
Light Foam Structure with UV-Printed Eye-Catching Color Scheme Film
Carbon Reinforced Braces for Wings, Fuselage and Suspension Mounts
F3P Competition Compliant Capable of Impressive Indoor 3D/4D Maneuvers

Specs:

Wingspan : 800mm (31.5")
Length : 860mm (33.8")
Flying weight: 210g

Recommended Setup:

1 X T-Motor AM40 4D Brushless Motor (1850Kv)
1 X T-Motor AM16A 4D Electronic Speed Controller or 20A ESC for 3D
1 X T-Motor F3P 4D T8542 Plastic Propeller
1 X T-Motor F3P 3D T9048 Plastic Propeller
3 X 9g Servos

3D Flight:
8" Prop + 3S LiPo
9" Prop + 2S LiPo

4D Flight: (Voltage & prop selection impact reversing speed—8" 4D props recommended for best performance.)

Versions:

KIT only
KIT+Motor+ESC+Servo (AM40-1850KV+Prop T9048+20A ESC+9g servo*3pcs) ---3D Flying
KIT+Motor+ESC+Servo (AM40-1850KV+4D Prop T8542+AM 16A ESC+9g servo*3pcs)---4D Flying

Kit only version

3D Power Version

4D Power Version

Intro video but more coming showing 4D!

2025 FAI F3P World Championship

DLE 55cc Engine

+ Free Shipping (Continental US only!) If international customer, please contact us at [email protected] for shipping quote. You will be charged separately for shipping.

Description:
The DLE 55 is a tried and true engine in the 50cc class size. It is the best bang for the buck, and offers great reliability, power and weight ratio. Comes with all high quality components, includes all hardware (standoffs, ignition, muffler, spark plug, etc). The DLE 55cc is a perfect choice for our 50cc class airframes

Download DLE 55cc Mounting Template
Download DLE 55cc Manual

Specifications:

Displacement: 55.6 cc (3.392 cu in)Manifold: 4-petal, V-type, reed-valve, bottom induction
Bore: 1.77 in (45 mm)
Stroke: 1.38 X in (35 mm)
Weight: 3.6 lb (1.65 g)
RPM Range: 1,350-8,500
Output: 5.5 hp @ 7,500 rpm
Requires: unleaded gasoline, oil, ignition battery & propeller
Includes: electronic ignition, muffler, spark plug, gasket, bolts, machined aluminum standoffs, throttle arm extension & mounting template
Suggested Propellers: 23x8, 24x8
Ignition Battery: 4.8-6.0V NiCd or NiMH, 6.6V LiFe or 7.4V LiPo pack (LiPo use requires voltage regulator.)
Compression Ratio: 7.6:1
Gas/Oil Mix: Break in with Lawn Boy(or similar non synthetic oil) at 32:1 Ratio per gallon / Use RedLine oil at 50:1 for long term use after break in.
Replacement Spark Plug: NGK CM6 (DLEG5510) or equivalent
Weights (Individual): Engine: 47.6 oz (1,350 g); Exhaust: 3.5 oz (100 g); Ignition: 4.2 oz (120 g)
Recommended Propeller: Redwing 23x8, 24X8. 23x8 is a nice mix of 3d and sport. The 24x8 is more 3d

Features:

Two crankshaft bearings-simple design for lighter weight
Aluminum alloy crankcase
Four petal V-type reed valve bottom induction system
Walbro carburetor
Fully automatic electronic ignition
Two year limited warranty through Hobby Services beginning at date of purchase
INCLUDES: Engine, spark plug, standoffs, ignition, muffler, instruction manual

DLE-55

$429.00 429.00

HiTec 425BB

Description:
This is the HS-425BB Pro Dual Ball Bearing Servo from Hitec. The HS-425BB is one of the most durable and reliable servos Hitec has ever offered. With its dual ball bearings, high impact resin gear train and high performance circuitry, the HS-425BB features excellent centering and resolution.

Specifications:

Torque:
- 46 oz/in at 4.8V (3.3kg/cm)
- 57 oz/in at 6V (4.1 kg/cm)
Speed:
- .21 sec at 4.8V
- .16 sec at 6V
Voltage: 4.8V to 6V
Weight: 1.6 oz ( 45.5g)
Size: 1.57 x .78 x 1.45 in (40 x 20 x 37 mm)