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How fighter jets lock on, and how the targets know (2014)

Screenshot of gizmodo.com captured 2026-07-20
Page preview · captured 2026-07-20

Resurfaced independently across 4 calendar years, with breakout response in 2 of them.

submissions
5
submitters
5
observed span
2014–2023
peak thread · 238 comments
532 pts
latest 20+ return · 2021-06-12
532 pts

Submission timeline

2007–2026

One slot for every year since HN launched. Height is that year's peak points; orange marks a 100+ point or 50+ comment breakout. Select a bar to open its strongest thread.

First comments on top threads

HN comment order

https://archive.is/OHCwT

neonate·532-point thread·

The system has not performed "a lock on the target", at least not in the way that the language leads you to believe. The tool is making a prediction, that within a certain level of confidence, and given the present parameters, that firing the missile will result in the neutralization of the target. There's growing number of ways, both active and passive, that targets can be tracked or future positions predicted. One of the answers on that page hints at…

reduce·251-point thread·

I always wondered how that works. Good article.

a-k-h·17-point thread·

The first top-level comment from each of the four biggest threads, in HN’s own order. Excerpts are shortened; open a comment for full context.

Breakout years
2

100+ points or 50+ comments

Total points
809

reference only — not used in Hall rules or ranking

Total comments
324

reference only — not used in Hall rules or ranking

Every submission

DateTitle as submittedByPointsComments
2014-10-10How Fighter Jets Lock on (and How the Targets Know)sgy70
2014-10-10How does a fighter jet lock onto and keep track of an enemy aircraft? (2013)First breakoutKhalilK25185
2016-04-16How Fighter Jets Lock on (and How the Targets Know)CoolGuySteve171
2021-06-12How fighter jets lock on, and how the targets know (2014)Best thread · Latest 20+ point returnushakov532238
2023-09-09Fighter Jets Lock on (and How the Targets Know)Hall inductionmr_o4720