Spooldown

noun

noun ·Rare ·Advanced level

Definitions

Noun
  1. 1
    The process of reduction of the rotational speed of a turbine engine, causing a reduction in thrust. uncountable

    "At 1620:38, the captain stated, "gotta get it over again...at least upside down we're flyin." At 1620:49, the CVR recorded sounds similar to engine compressor stalls and engine spooldown. At 1620:54, the captain commanded deployment of the speedbrakes, and, about 1 second later, the first officer replied, "got it." At 1620:56.2, the captain stated, "ah here we go." The FDR recording ended at 1620:56.3, and the CVR recording ended at 1620:57.1."

Example

More examples

"At 1620:38, the captain stated, "gotta get it over again...at least upside down we're flyin." At 1620:49, the CVR recorded sounds similar to engine compressor stalls and engine spooldown. At 1620:54, the captain commanded deployment of the speedbrakes, and, about 1 second later, the first officer replied, "got it." At 1620:56.2, the captain stated, "ah here we go." The FDR recording ended at 1620:56.3, and the CVR recording ended at 1620:57.1."

Etymology

From spool + down.

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.