高級電磁砲：連續射擊120發成功。
~ 採用新的放電方式和新材料
~研討會最新資料發布
我們將提供在 ITmedia NEWS 上發表的文章摘要。
Defense Equipment Agency:
The latest information on the railgun, a device that fires objects using electromagnetic force, has been released.
Latest materials for 2023:
Contains ‘results of continuous shooting tests conducted in 2023’.
Contents of continuous shooting test:
On December 5th, we released the latest information on railguns.
1. Results of continuous shooting tests conducted during 2023 will be published in PDF format.
2. A video of the “Technology Symposium 2023” held in November has also been released.
Describes the technical explanation of the railgun and the latest status of verification.
Railgun performance challenges:
Conventional railgun development:
1. How to stably shoot a high initial velocity bullet with a single shot?
2. How to ensure the lifespan of the gun barrel?
We have developed and verified the above themes.
Future railgun development:
From 2022 onwards, we will begin developing and verifying a more advanced rail gun.
They began developing a mechanism for firing bullets repeatedly and ways to maintain bullet stability.
Problems with continuous shooting:
When firing continuously with a railgun, the following points become a problem.
1. Damage to gun barrel rail due to abrasion with bullets, etc.
2. There are two points: ’decreased initial velocity’ due to damage to the gun barrel rail.
ssues that reduce initial velocity:
Past research has shown that ‘damage around the initial position of the bullet’ is particularly severe.
There was an issue where the initial velocity decreased each time the gun was fired.
Verified by experiment in 2023:
In an experiment in 2023, we verified the issue of decreasing initial velocity.
To achieve continuous shooting with a railgun,
It is essential to be able to fire ’high initial velocity bullets’ stably and repeatedly.
New discharge methods and new materials:
A new discharge method was introduced, and a new material was used for the gun barrel rail.
By introducing new technology and new materials, we took on the challenge of solving conventional problems.
Successfully fired 120 shots in a row:
As a result of introducing the new method,
1. No ‘significant damage at the initial position of the bullet’ occurred.
2. Achieved ‘maintaining initial velocity of 2000m/s’ with 120 consecutive shots.
Railgun uses:
The Equipment Agency envisions two scenarios for the use of railguns.
1. Intercepting hypersonic guided missiles
Railguns have a longer range and are more powerful than conventional artillery.
Intercept by making full use of the characteristics of the railgun.
2. Deliver a devastating blow
Inflict a devastating blow on enemy naval (ground) targets with its power.
Offshore shooting test conducted in August:
This year, the Equipment Agency conducted the following tests:
In August, the world’s first offshore firing test was conducted.
A bullet flight stability test was also conducted in October.
We are currently analyzing these test results. We will continue to engage in further research.
Holding a technical symposium:
At the technical symposium, the position of Japan’s railgun development was mentioned.
Information exchange with the US and Europe:
The agency exchanged information between engineers in the United States and Europe.
I would like to refrain from commenting on the level of research in other countries.