From e021fc21ea8108f73051490d13a2151cee34aebb Mon Sep 17 00:00:00 2001 From: Willem Ferguson Date: Mon, 28 May 2018 20:15:43 +0200 Subject: User manual: Add text for dive planning CCR with bailout Three images added as well as text. Signed-off-by: Willem Ferguson --- Documentation/images/CCR_b1.jpg | Bin 0 -> 22601 bytes Documentation/images/CCR_b2.jpg | Bin 0 -> 31111 bytes Documentation/images/CCR_b3.jpg | Bin 0 -> 32391 bytes Documentation/user-manual.txt | 25 +++++++++++++++++++++++++ 4 files changed, 25 insertions(+) create mode 100644 Documentation/images/CCR_b1.jpg create mode 100644 Documentation/images/CCR_b2.jpg create mode 100644 Documentation/images/CCR_b3.jpg diff --git a/Documentation/images/CCR_b1.jpg b/Documentation/images/CCR_b1.jpg new file mode 100644 index 000000000..6c6e477a9 Binary files /dev/null and b/Documentation/images/CCR_b1.jpg differ diff --git a/Documentation/images/CCR_b2.jpg b/Documentation/images/CCR_b2.jpg new file mode 100644 index 000000000..5261c832c Binary files /dev/null and b/Documentation/images/CCR_b2.jpg differ diff --git a/Documentation/images/CCR_b3.jpg b/Documentation/images/CCR_b3.jpg new file mode 100644 index 000000000..1cad5fe8f Binary files /dev/null and b/Documentation/images/CCR_b3.jpg differ diff --git a/Documentation/user-manual.txt b/Documentation/user-manual.txt index b01c5a13f..42747014c 100644 --- a/Documentation/user-manual.txt +++ b/Documentation/user-manual.txt @@ -4020,6 +4020,31 @@ image::images/Planner_CCR.jpg["FIGURE: Planning a CCR dive: setup",align="center Note that, in the _Dive plan details_, the gas consumption for a CCR segment is not calculated, so gas consumptions of 0 liters are the norm. +==== Planning for CCR bailout + +[icon="images/CCR_b1.jpg"] +[NOTE] +It is often necessary to plan for a worst-case bailout event in order to ensure sufficient bailout gas to reach the +surface, taking into account decompression. This is done by defining a 1-minute segment at the end of the bottom part +of the dive, as in the image on the left where a CCR dive to 40m for 21 minutes is planned. + + +[icon="images/CCR_b2.jpg"] +[NOTE] +In the dive planner points +table, change the _Dive mode_ of this 1-minute segment to _OC_. This signifies bailout. In this case there is bailout to +the existing diluent cylinder (assuming this cylinder has sufficient gas). The appropriate pO~2~ and cylinder pressure +graphs are shown in the dive profile, as in the image on the left. Note that the setpoint drops to zero after bailout, since +this value does not apply to breathed bailout gas. + + +[icon="images/CCR_b3.jpg"] +[NOTE] +In order to plan for bailout to an external bailout cylinder, change the _Used gas_ for the 1-minute segment to the +appropriate cylinder, as in the example on the left. Note that the cylinder change as well as the bailout are indicated with +overlapping icons. + + [[S_Replan]] === Modifying an existing dive plan -- cgit v1.2.3-70-g09d2