AFDAU-T1 Aerial Firefighting
Data Acquisition Unit
Installation Manual
AMS-IM-1-01 Rev. 7
22 September 2021
7
Container Type
The container type can be one of two attributes:
1. TANK
2. BUCKET
On single container aircraft, the container type is automatically detected and will reflect the container on which the fill
event was generated.
On dual container rotary-wing aircraft the container type is selected via a Container Select (refer Section 2.2.8)
discrete input.
Application: TracPlus Pro 3
DROP START
1.3.6 Drop Stop
Once a Drop Start event has been detected the AFDAU-T1 monitors the flow of contents from the container until there
is an end of substantial flow to generate a Drop Stop event.
A volume gauge input must be connected to the AFDAU-T1 and properly configured, refer Section 2.2.10
The following additional data will be sent with the Drop Stop event message:
Drop Volume:
This is the volume of water that has been dropped from Drop Start to Drop Stop. This value is in Litres.
Drop Type
The drop type can be one of three attributes:
1. SPLIT
2. FULL
3. NOT APPLICABLE
Due to the advanced algorithms employed by the AFDAU-T1, the drop type can be detected in real-time during the
drop and will be reported as part of the Drop Stop event message.
Height AGL
Currently transmits a 0. Provisional attribute for future interface to Radalt Systems. Please contact technical support if
further details are required.
Drop Pair ID
The ID of the drop pair. This value is unique to each Drop Start and Drop Stop that are a pair to help agencies match
each drop start and stop event. This value resets when the AFDAU-T1 is reset.
