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Baby was an early part of Japanese rocket development and first flown in 1957 by Hideo Itokawa and team at Michikawa, Iwaki in Akita province in north-west Honshu island.

Japan's Baby Rocket

Contents

Background

The baby rocket was the second step in Japanese rocket development. The baby rocket was the transition from the initial pencil rockets to full-scale operational sounding rockets.

Baby rockets are quite good, and the first thing is that I was able to go before exceeding the speed of sound. At that time, there was no way to measure the speed, so it was computationally, but I don't think it was exceeded. Baby S type is the first. The next baby T-type put a telemeter on it for the first time. This was the turn of Mr. Noboru Takagi and Mr. Nomuraya. I also remember making one measuring instrument and one one for the accelerometer, but this didn't work. Anyway, it was a big story to put a telemeter on it. The last baby R-type was also collected with a parachute and a buoy. This was also not working on the installed equipment, but I only collected it. However, it meant that it did all the functions as a basic observation rocket. The altitude was very low, but it's quite a big deal that I did it in the same year.

  • (Akiba)

(The Flight of a Baby Rocket | History of Japan’s Space Development | ISAS, n.d.)

Design

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(Daderot, 4 September 2013, 23:51:13)

The two-stage rocket had an outer diameter of 8 cm, a total length of 120 cm, and a weight of about 10 kg.; Fuji Precision had already conducted a previous combustion experiment. (The Age of Baby | History of Japan’s Space Development | ISAS, n.d.)

Types

There were three types of the baby rocket

TypeFeature
TTransmitter
SSmoke
RParachute

19 September 1955 14:40|

The second T-Type baby was launched (The Desperate Crawling Forward | History of Japan’s Space Development | ISAS, n.d.)

Media

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Bibliography

Daderot. (4 September 2013, 23:51:13). English: Exhibit in the National Museum of Nature and Science, Tokyo, Japan. Photography Was Permitted in the Museum without Restriction.
The Age of Baby | History of Japan’s Space Development | ISAS. (n.d.). Retrieved January 7, 2024, from https://www.isas.jaxa.jp/j/japan_s_history/chapter01/03/index.shtml
The Desperate Crawling Forward | History of Japan’s Space Development | ISAS. (n.d.). Retrieved January 7, 2024, from https://www.isas.jaxa.jp/j/japan_s_history/chapter01/03/03.shtml
The Flight of a Baby Rocket | History of Japan’s Space Development | ISAS. (n.d.). Retrieved January 6, 2024, from https://www.isas.jaxa.jp/j/japan_s_history/chapter01/03/01.shtml