---
title: "Skill Summary - 1 Drop Rates (CN server)"
description: "Skill Summary - 1 drop rates on the CN server: CA-2 500.00% (4,344 samples), CA-1 300.00% (4,804), 1-10 200.00% (16,414); 7 stages in total. Updated 2026-10-23. Crowdsourced Arknights drop data by Penguin Statistics."
lang: en
server: CN
item_id: "3301"
as_of: 2026-10-23T14:49:33Z
time_zone: UTC+8
rows: 7
rows_total: 7
canonical: "https://penguin-stats.io/en/result/cn/item/3301"
api: "https://penguin-stats.io/PenguinStats/api/v2/result/matrix?server=CN&itemFilter=3301&show_closed_zones=true"
license: CC BY-NC 4.0
license_url: https://creativecommons.org/licenses/by-nc/4.0/
attribution: "Data: Penguin Statistics (penguin-stats.io), CC BY-NC 4.0"
---

# Skill Summary - 1 Drop Rates (CN server)

Server: **CN server** · [US server](https://penguin-stats.io/en/result/us/item/3301.md) · [JP server](https://penguin-stats.io/en/result/jp/item/3301.md) · [KR server](https://penguin-stats.io/en/result/kr/item/3301.md)

Drops of Skill Summary - 1 by stage on the CN server, by percentage, highest first: 7 of 7 stages

| Stage | ID | Loots | Samples | Percentage | Sanity Required Per Item | Sanity | Time Range |
| --- | --- | ---: | ---: | ---: | ---: | ---: | --- |
| [CA-2](https://penguin-stats.io/en/result/cn/stage/weekly_6/wk_fly_2.md) Aerial Threat | `wk_fly_2` | 21720 | 4344 | 500.00% | 3.00 | 15 | 2019-05-01 until now |
| [CA-1](https://penguin-stats.io/en/result/cn/stage/weekly_6/wk_fly_1.md) Aerial Threat | `wk_fly_1` | 14412 | 4804 | 300.00% | 3.33 | 10 | 2019-05-01 until now |
| [1-10](https://penguin-stats.io/en/result/cn/stage/main_1/main_01-10.md) Episode 1 | `main_01-10` | 32828 | 16414 | 200.00% | 4.50 | 9 | 2019-05-01 until now |
| [CA-5](https://penguin-stats.io/en/result/cn/stage/weekly_6/wk_fly_5.md) Aerial Threat | `wk_fly_5` | 24889072 | 16589758 | 150.03% | 20.00 | 30 | 2019-05-01 until now |
| [CA-4](https://penguin-stats.io/en/result/cn/stage/weekly_6/wk_fly_4.md) Aerial Threat | `wk_fly_4` | 34991 | 34991 | 100.00% | 25.00 | 25 | 2019-05-01 until now |
| [CA-3](https://penguin-stats.io/en/result/cn/stage/weekly_6/wk_fly_3.md) Aerial Threat | `wk_fly_3` | 23356 | 23356 | 100.00% | 20.00 | 20 | 2019-05-01 until now |
| [Gacha Machine](https://penguin-stats.io/en/result/cn/stage/act3d0_zone1/gachabox6.md) Heart of Surging Flame | `gachabox6` | 497 | 19913 | 2.50% | 801.28 | 20 | 2019-08-27 to 2019-09-17 |

Samples: runs of the stage reported in the time range. Loots: total number of the item dropped in those runs. Percentage = Loots ÷ Samples, the expected number dropped per run, which can exceed 100%. Sanity Required Per Item = Sanity ÷ Percentage. Time Range: since the drop table of the stage last changed.

Updated 2026-10-23 22:49 (UTC+8). [Full data (JSON)](https://penguin-stats.io/PenguinStats/api/v2/result/matrix?server=CN&itemFilter=3301&show_closed_zones=true). License: [CC BY-NC 4.0](https://creativecommons.org/licenses/by-nc/4.0/)

## Related Items

- [Skill Summary - 3](https://penguin-stats.io/en/result/cn/item/3303.md) `3303`
- [Skill Summary - 2](https://penguin-stats.io/en/result/cn/item/3302.md) `3302`