Originally Posted by
ICT_SLB
- effectively there are no individual units such as a "Normal Accelerometer" as the whole set is used to provide and internally verify the output data.
Thanks ICT_SLB.
I understood this was possible with the modern systems you mentioned above, but not the older gimballed, stabilised platform systems.
I understand there are AHRS units in which the accelerometers are not aligned with the aircrafts axis. A processor converts raw sensor data to the aircrafts pitch roll and yaw axis.
There are AHRS units that only use a set consisting of two accelerometers, (excluding other sets for redundancy) that when processed, output normal and lateral accelerations to the FCC.
Although these systems do have the capability to provide longitudinal acceleration data, that capability is not utilised. Thats why I wonder in general, how common it is for longitudinal acceleration data to actually be fed into FCCs for aircraft control?
Cheers
Obi