From 7c61e3d4645082e0f58b02f85b4530f073ebe13a Mon Sep 17 00:00:00 2001 From: "R.D. Beerman" Date: Thu, 30 Jan 2025 16:46:19 +0100 Subject: [PATCH] Added context for pitot heat switch warning (#341) * Added context for pitot heat switch warning * wording --------- Co-authored-by: Daniel Tischner --- .../flight_controls_gear/primary_flight_instruments.md | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/src/systems/flight_controls_gear/primary_flight_instruments.md b/src/systems/flight_controls_gear/primary_flight_instruments.md index 7905ff2fc..d5aae639c 100644 --- a/src/systems/flight_controls_gear/primary_flight_instruments.md +++ b/src/systems/flight_controls_gear/primary_flight_instruments.md @@ -245,8 +245,11 @@ on a single boom on the aircraft's nose. Both the pitot tube and static ports are prone to blockages caused by ice accumulation. To alleviate icing of the pitot head, a Pitot Heat Switch is found in the front cockpit right console. -> 🟡 CAUTION: The Pitot Heat switch should always be turned on before takeoff but not for -> longer than one minute as it could damage the instrument. +> 🟡 CAUTION: The Pitot Heat switch should always be turned on before takeoff as +> otherwise the bellows intake could freeze, resulting in flight control issues, +> as well as airspeed or altimeter issues. However, the Pitot Heat should not be allowed +> to run longer than one minute on the ground without sufficient airspeed, as it could +> damage the instrument. ## Air Data Computer System