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-rw-r--r--doc/altusmetrum.xsl14
1 files changed, 14 insertions, 0 deletions
diff --git a/doc/altusmetrum.xsl b/doc/altusmetrum.xsl
index 885c573e..39b3998a 100644
--- a/doc/altusmetrum.xsl
+++ b/doc/altusmetrum.xsl
@@ -2184,6 +2184,20 @@ NAR #88757, TRA #12200
</para>
</section>
<section>
+ <title>Apogee Lockout</title>
+ <para>
+ Apogee lockout is the number of seconds after boost where
+ the flight computer will not fire the apogee charge, even if
+ the rocket appears to be at apogee. This is often called
+ 'Mach Delay', as it is intended to prevent a flight computer
+ from unintentionally firing apogee charges due to the pressure
+ spike that occurrs across a mach transition. Altus Metrum
+ flight computers include a Kalman filter which is not fooled
+ by this sharp pressure increase, and so this setting should
+ be left at the default value of zero to disable it.
+ </para>
+ </section>
+ <section>
<title>Main Deployment Altitude</title>
<para>
By default, the altimeter will fire the main deployment charge at an