Avionics Bending: End-To-End Test of the ADI, HSI, VSI and ALT with X-Plane

L-1011 Trainer Installation - X-Plane to ARINC End-To-End Test

Today Jim and myself reached another important millstone with the L-1011 project. We performed a complete end-to-end test of the ARINC 429 compatible primary flight instruments. This now finally tests all of the components in the loop for both the Captain's as well as the F/O station. The instruments tested today are:

• Altimeter (ALT)
• Vertical Speed Indicator (VSI)
• Attitude Director Indicator (ADI)
• Horizontal Situation Indicator

All in all we are transmitting 46 ARINC 429 labels over 8 discrete transmit buses. 4 of the buses are 100Kbps buses and 4 are 12.5Kbps buses. Of the four 12.5Kbps buses two are standard ARINC 429 buses and two are ARINC 575 compatible buses (so no SSM information on the label word). The video below is a short demonstration of flying the L-1011 sim in a very basic mode with no trim and only basic functions enabled, again, the test if for the ARINC instruments and not for the A/D conversion of the control inputs. 

In addition to the ARINC and X-Plane end-to-end tests we also installed the left hand side audio side panel. 

L-1011 Left Hand Side - Audio Side Panel