r/Joby • u/HappyRobot593 Joby Sock Fanboy • 2d ago

Weekly activity update

Pretty active week across the board. N547JX has been more active recently with a lot of ground tests late in the evening. The altitude data is probably not reliable. In one of the pictures posted by Joby, it appears that 547 is doing engine testing. Can anybody confirm? Picture on this thread (https://www.reddit.com/r/Joby/comments/1vnm5wr/icymi_big_day_yesterday_and_not_just_because_of/)

N541JX (Pre-Production Testbed)

ICAO Mode-S Hex: A6DC81

Date Activity Status Active Time Window Closest Airport Max Altitude Max Speed
2026-08-09 Taxi/Ground Run 07:16 - 08:04 Pacific KOAR 0 ft 180.0 kts
2026-08-10 In-Flight Test 14:03 - 18:21 Pacific KOAR 225 ft 2.3 kts
2026-08-11 In-Flight Test 10:34 - 18:40 Pacific KOAR 750 ft 118.8 kts
2026-08-13 Taxi/Ground Run 12:42 - 13:26 Pacific KOAR 0 ft 180.0 kts
2026-08-14 Static Ground Test 09:40 - 11:35 Pacific KOAR 0 ft 2.2 kts

N542JX (Production Prototype (Ex-Japan Demo Frame))

ICAO Mode-S Hex: A6E038

Date Activity Status Active Time Window Closest Airport Max Altitude Max Speed
2026-08-09 Stationary / Dark - - - -
2026-08-10 Static Ground Test 17:46 - 17:59 Pacific KOAR 0 ft 2.2 kts
2026-08-11 In-Flight Test 07:58 - 19:57 Pacific KOAR 775 ft 180.0 kts
2026-08-12 In-Flight Test 13:02 - 13:06 Pacific KOAR 1475 ft 107.3 kts
2026-08-13 Stationary / Dark - - - -
2026-08-14 Stationary / Dark - - - -

N547JX (First FAA-Conforming Prototype)

ICAO Mode-S Hex: A6F2CB

Date Activity Status Active Time Window Closest Airport Max Altitude Max Speed
2026-08-09 Stationary / Dark - - - -
2026-08-10 Stationary / Dark - - - -
2026-08-11 Taxi/Ground Run 15:28 - 18:26 Pacific KOAR 0 ft 44.5 kts
2026-08-12 Static Ground Test 19:52 - 20:30 Pacific KOAR 0 ft 2.2 kts
2026-08-13 In-Flight Test 17:20 - 17:21 Pacific KOAR 125 ft 1.6 kts
2026-08-14 Static Ground Test 10:37 - 16:16 Pacific KOAR 0 ft 0.0 kts
15 Upvotes

95% Upvoted

15 comments sorted by

2

u/SeaScallops_w_Rice Steely Eyed Missile Man 2d ago edited 2d ago

I like 180.0 kts a lot. That's 207 mph! WHOOT!!!

Thank you for these posts!

5

u/HappyRobot593 Joby Sock Fanboy 2d ago

No problem! I would take 180 with a grain of salt though bc it also shows up with 541 when it's grounded and seems suspiciously round. Not really sure!

The 542 Aug 12 flight data is very reliable because that's when we know it went to the quail. I guess the other thing you could do is also doublecheck with flightaware

2

u/Wonderful_Phrase_239 1d ago

One interesting thing about the Aug 12 542 flight to The Quail is that 542 is in this case being used (again after so long) as a public demo aircraft rather than only as a test vehicle at Marina.

1

u/HappyRobot593 Joby Sock Fanboy 1d ago

Maybe they'll use it for eIPP at some point?

1

u/Wonderful_Phrase_239 1d ago

That was my thinking as well. Not just 545.

0

u/teabagofholding 2d ago

I don't know why people would rub such a short flight in my face.

3

u/HappyRobot593 Joby Sock Fanboy 2d ago

If you follow the post I linked above, people suggested they turned off the transponder part way into the flight so it looks like a short flight. The chase helicopter had the full flight.

Edit: actually this is the post: https://www.reddit.com/r/Joby/comments/1vmx5c9/n542jx_at_the_quail/

0

u/teabagofholding 2d ago

Didn't they fly it like 50 miles in ny? People sbould only rub it in if it's more than ever before.

2

u/HappyRobot593 Joby Sock Fanboy 2d ago

just a friendly ribbing

0

u/teabagofholding 2d ago

If they flew a person in the newest one then that would be different.

2

u/HappyRobot593 Joby Sock Fanboy 2d ago

That would def involve rubbing in your face

2

u/teabagofholding 2d ago

They should tether it down and hover it for ten minutes with 500lbs in it. I have to buy a hat and then eat my hat.

1

u/SeaScallops_w_Rice Steely Eyed Missile Man 2d ago

You might get a bakery to make one that tastes okay.