Estes Doorknob Model Rocket Kit
Estes Doorknob Straight View
Doorknob Side Flame
Doorknob Up Flame View
Doorknob Recovery View
Estes 9720 Doorknob Parts
Estes Doorknob Model Rocket Kit
Estes Doorknob Straight View
Doorknob Side Flame
Doorknob Up Flame View
Doorknob Recovery View
Estes 9720 Doorknob Parts
Estes Rockets

Pro Series II™ Doorknob - Dents & Dings

Código: 009720-DD
$26.39
$43.99
Venta Agotado
-40%
Advanced

The Pro Series II™ Doorknob rocket is the perfect addition to any rocket enthusiast's collection. It is a 1:5.3 scale model of the single and two-stage Doorknob rockets used by scientists in the 1950s to measure the effects of radioactivity from nuclear testing. The rocket is designed to be both fun and simple to build and fly, making it suitable for rocket enthusiasts of all skill levels.

The Doorknob rocket played an essential role in collecting data on the effects of nuclear testing on the ozone layer and possible long-range radioactive fallout. The rocket's ability to capture radioactive data at altitudes of approximately 50 miles made it a crucial tool for scientists during this time.

The Pro Series II™ Doorknob rocket comes with two sets of decals, allowing for customization to turn it into a sports model. It is the perfect way to honor the scientific advancements of the 1950s while enjoying the thrill of launching a rocket into the sky.

  • SKILL LEVEL: Advanced
  • RECOMMENDED ENGINES: F15-4, F15-6, E16-4 w/Engine Adapter (sold separately)- D12-3
  • PROJECTED ALTITUDE: 1100 ft. (335 m)

Products included in the Dents & Dings Sale are offered at a 40% discount due to blemished or damaged packaging. While the external packaging may have cosmetic imperfections, the rocket and its components inside are fully intact and undamaged.

Please Note:
  • All Dents & Dings items are final sale and not eligible for the Estes One-Year Warranty.
  • These products are sold as-is, with no returns or exchanges.
  • Availability is limited, and discounts apply only while supplies last.

Take advantage of these huge savings while they last!

Descripción general

Necesario para volar

Especificaciones

Reseñas



Descripción general

The Ban on Nuclear Testing and the Hardtack Series

Before we start, we need to cover the prehistory of Doorknob Model Rocket. During the mid-1950’s, the US and Russian nuclear testing caused public concerns over nuclear fallout to reach a fevered pitch. In response, President Eisenhower announced a ban on further nuclear testing on or before October 31, 1958.

US scientists disregarded the ban and conducted the Hardtack Series of tests to collect data on radioactivity effects from both underwater and above-ground detonations. The program consisted of 35 detonations in the Pacific Proving Grounds from April to August 1958.

Measuring the Effects of Radioactivity

Scientists were chiefly concerned about damage to the ozone layer and possible effects of long-range radioactive fallout. To measure the earth's upper atmosphere, they developed single and two-stage Doorknob rockets. They could capture radioactive data for analysis at altitudes of approximately 50 miles.

Early results indicated minimal or no damage to the ozone layer from the nuclear testing. Additionally, it's possible that water detonations generated enough ozone to compensate for any loss caused by above-ground testing.

The Estes 1:5.3 Scale Model Doorknob

The Estes 1:5.3 scale Doorknob model rocket is a big and impressive kit that is both simple to build and fun to fly. It will be a hit in both the sport and scale rocket categories. There are two sets of decals available for those who want to turn this scale model into a sports model

Key points:

  • President Eisenhower announced a ban on further nuclear testing on or before October 31, 1958, due to public concerns over nuclear fallout
  • Despite the ban, US scientists carried out the Hardtack Series of tests from April to August 1958
  • Scientists were concerned about damage to the ozone layer and possible effects of long-range radioactive fallout
  • Single and two-stage Doorknob rockets were developed to capture radioactive data at altitudes of approximately 50 miles
  • The Estes 1:5.3 scale model Doorknob is a fun and simple kit to build and fly. Moreover, it has two sets of decals available for customization.
Estes Doorknob Model Rocket Kit

Especificaciones técnicas

Especificaciones técnicas

  • Motores recomendados

 F15-4, F15-6, E16-4
w/Engine Adapter : D12-3

  • Sistema de lanzamiento

  Porta-Pad E 

  • Altitud máxima proyectada

1100 ft. (335 m)  

  • Sistema de recuperación

    18 in. (45.7 cm) Parachute   

  • Longitud

  26.9 in. (68.3 cm) 

  • Diámetro

  3 in. (76 mm) 

  • Peso

  10 oz. (283.5 g) 

  • Material de la aleta

  Laser Cut Balsa Wood 
Download Instructions
Estes Pro Series II rocket kits are recommended for adults ages 18+ with adult supervision for those under 18, and rocketeers of all ages.

Lo que necesitas para volar

Porta-Pad E Launch Pad and Pro Series II Launch Controller, 1/4 inch Two-Piece Launch Rod. Estes model rocket engines, starters and recovery wadding.
Six C 1.5V high quality AA alkaline batteries (sold separately)

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