split S
split S noun: an aerobatic maneuver in which an aircraft, starting from upright level flight, rolls inverted and then performs one-half of an inside loop, ending up in upright level flight in the opposite direction at a lower altitude; equivalent to an Immelmann turn (modern sense) performed in reverse.

Noun
split S (plural split Ses)
Forms of split S
| plural | split Ses |
|---|---|
| alternative form | split-S |
Origin of split S
Named for the resemblance of the aircraft's flightpath to the upper or lower half of the letter S (an aircraft performing two split Ses in sequence, with the first split S leading immediately into the second, would trace out a flightpath in the shape of a vertical S).
Questions about split S
- What does split S mean?
- Split S means an aerobatic maneuver in which an aircraft, starting from upright level flight, rolls inverted and then performs one-half of an inside loop, ending up in upright level flight in the opposite direction at a lower altitude; equivalent to an Immelmann turn (modern sense) performed in reverse.
- What part of speech is split S?
- Split S is a noun.
- What is the plural of split S?
- The plural of split S is split Ses.
Words near split S in the dictionary
Source and license
Adapted from Wiktionary: split S (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.
Last updated:
Cite this entry: “split S.” Word.ws, https://word.ws/split_s. Based on Wiktionary, CC BY-SA 4.0.
