Big Bertha Model Rocket Kit, Skill Level 1

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Big Bertha Model Rocket Kit, Skill Level 1

Our Price:

$33.99

Quantity (2)

Availability 2 in stock
Weight 1.50 lbs
SKU EST1948
Big Bertha is an Estes original! She's an all around Estes favorite that has truly withstood the test of time. Over the decades, Big Bertha has been most modelers' first big build. If you've never flown a Bertha, get one and launch it. Once you've flown it, you'll take it to every launch!

The Big Bertha gives you a slow, realistic liftoff. What a thrill it is to watch! Propelled by powerful standard Estes engines, this beauty travels to 500 feet and comes back to earth with an 18 inch parachute. Quality Estes body tubes, laser cut wood fins, molded plastic nose cone and easy to apply waterslide decals make for an afternoon of building enjoyment.

Features:

Skill Level 1
Laser Cut wood Fins, Waterslide Decals, 18 in. (46 cm) Parachute Recovery
Recommended Engines: B4-2, B4-4, B6-2, B6-4 (First Launch), C6-5
Specifications:

Length: 24 in. (61 cm)
Diameter: 1.64 in. (42 mm)
Estimated Weight: 2.5 oz. (71 g)
Projected Max Altitude: 500 ft. (152 m)
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GT2000V2 F5J/P5B Competition Grade CF Powered Glider (2.0M) ARF Kit or PNP

GT2000v2 F5J/P5B Competition Grade CF Powered Glider (2.0M) Kit

The GT2000v2 Powered Glider is a high-performance competition grade glider with light weight carbon fiber and wood construction ideal for precision competition or a gentle relaxing flight. With its elegant wings and carbon fiber fuselage it responds superbly to thermals.

The GT2000v2 version has integrated carbon fiber throughout the model to maximize strength and performance while improving the quality, reducing weight and increasing the performance of glider. Below is a list of improvements from version 1:

  • Thinner/lighter fiberglass battery compartment
  • Carbon fiber canopy and tail pipe
  • Wings constructed with carbon fiber main beam and carbon tube latch with three-stage plug-in structure design for easy transport
  • Thinner wings and optimized airfoil to improve gliding performance
  • Most accessories are made of carbon fiber with improved strength and lighter weight
  • Tail wing incorporates a torsion spring to improve return to center and lighter weight structure

Maximized strength is provided with the carbon fiber tail pipe and carbon fiber reinforced wings so the glider can withstand high speed precise flights setting new standards in the 2M wingspan class. The ailerons and flaps are a wide and long feature, making pin-point landings easy while also improving the launch characteristics and giving the pilot a broad performance spectrum for high speed, aerobatics and thermalling.

The planes docile flying characteristics and excellent performance in the air ensure that the GT2000v2 provides maximum flying pleasure, whether you are a weekend pilot or flying in a competition. You will enjoy floating through the air for long periods, as well as lively aerobatics- all with style and precision.

The model comes as a kit version only due to multiple different power system and competition requirements for pilots. Below are some suggestions:

  •  Recommend a motor with reverse shaft and outer diameter of 28mm, such as XM2838 P5B special motor, or higher performance motor
  • ·May use standard size 9g servos for the tail and wing; however due to the thin wing must use smaller wing servos such as KST08, GDW1906, or Blue Arrow D0474HT MG for the aileron and flap. The thickness of the servo should be less than 9mm and the torque greater than 2kg.

Specs:
Wing Span: 2000MM
Length: 1120MM
Wing Area: 30.3dm2
Flight Weight: 670g
Servos: 9g*6
Motor: XM2838 P5B 1800KV
Esc: 40A (as required based on motor)
Propeller: 8x6E (as required based on motor)
Battery: 3S 11.1V 1300mAh (as required based on motor)

CG: about 45mm from the front leading edge of the wing

GT-2000v21

$450.00

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