$JOBY Aviation - Consolidated Failure Mode Injection Testing Footage (April 2025)

April 2025 @ Edwards Air Force Base (Mojave Desert)
Consolidated failure mode testing footage from $JOBY Aviation
Joby S4 -- N5421A -- Delivered to Edwards AFB Sept 2023
$JOBY...the signs are there😎

Original Joby post: https://x.com/jobyaviation/status/192...

Here's the trimmed footage for each individual camera angle, very impressive to see the details from Joby!

0:00 - 2:43 // Nacelle #1 and #2 Close-Up
2:43 - 5:47 // Chase Plane Footage
5:47 - 6:33 // Cockpit View

Testing Highlights:
0:20 - 0:38 // Close up of the opening & closing of the lift actuators for the nacelles through transition into wingborne flight

1:05 // Radio callout approving "failure injection" test is able at pilot’s discretion

1:15 // Pilot confirms "Sending the DG", and Nacelle #3 powers down as commanded. Notice zero change to the aircraft's flight behavior
(On the graphic, you'll see motor torque goes to 0% with solid red for Nacelle #3, simultaneously Nacelle #5 goes to 0% with shaded red, showing it's online yet powered down)

1:32 // Nacelles begin transition from wingborne orientation (front-facing) into VTOL (upward-facing)

2:32 // Landing under full operational authority with power to only 4 of 6 Nacelles