JS1 Jet Sustainer Flight Manual Supplement - Issue 1
Date of issue: 31.03.2016
Accepted section
Page 4–10
4.4.3. Cooling
The Cooling Mode is automatically
initiated when the Jet Control toggle switch
is moved to the EXT (middle) position or
RETR (bottom) position after the engine
was running.
During this mode the starter motor will be turning the compressor to
facilitate the correct cooling down of the engine.
The JDU will display the pylon in the extended state during this mode
while cooling is in progress.
WARNING:
Do not touch the engine or have any object close to the
intake while the engine is extended. The electric starter
motor may operate without warning while in this mode.