Joby vs Archer - How quiet are they?

We went to see and hear for ourselves which EVTOL makes the least noise: Joby's S4 or Archer's Midnight? With camera and dB meter in hand we put them both to the test.
Send your feedback and observations to [e-mail]

[@user-ny2bx8ez1c]

As a retired aerospace contractor, Joby gets my vote.

[@zhihenglou]

Thanks for the upload! Very interesting.

[@patrickmckowen2999]

Everyone is assuming these tests are being done unloaded, do we know?

[@chrisn7847]

Not even close to an even comparison between S4 and Maker. The camera crew is 40 meters away at S4's hover (71 db highest) while for Maker the crew is 240 meters away at hover (55 db highest). Even still. It's telling how loud Maker is to S4... Midnight is much louder with it getting to 85 db at 85 meters away.

[@mike33398109]

@@sphudson I am glad that these slapped together, 'not science project' eVTOLs sound obnoxious. It is very easy to tell the difference and sets Joby apart. In the case of Archer, I believe their schedule to begin service as much as I believed their schedule for delivery to the Air Force and for piloted flight! They have yet to transition and had one flight mishap this year, so far after which Midnight did not fly from March 7 to May 3 according to the observations in this video, contrary to their twitter posts.

[@SchrodingerPants]

Very much agree, @chrisn7847. These comments are a joke. @sphudson I’ll wait to see an equivalent comparison of these vehicles at useful GW and a takeoff profile that doesn’t drain the batteries before making such denouncements. You should too.

[@EVTOLresearch]

@mike33398109 We made a video about what happened between March 7 and May 3. You can find it here: www.youtube.com/watch? v=WR8LrdCiz8E

[@vtxfan]

I really like the Joby design. Loading them to max gross takeoff weight will certainly increase the noise, but still way less obtrusive than any helicopter. Now they just need to hybridize it and expand their utility/market 👍🏻

[@zenithstar11235]

👀

[@evanbyrne4433]

If all of these are presumably flying without the weight of passengers, their noise will go up considerably when loaded as the disc loading of the propellers will increase.

[@patrickmckowen2999]

👍

[@BlueEyed888]

Archer Midnight will never be allowed to fly into urban vertiports with that level of noise. So glad i don’t own any ACHR.

[@mike33398109]

On the May 3 flight, the aft propellers on the Midnight have four blades. It is especially visible at the very end of the video (16:20) Looks like they need to up the power and speed on the aft motors if they want to get down to two blades. More noise coming. Wow, that is loud. I wonder what it is like in the cabin. I don't want one near my neighborhood! The midnight overhead is 99 - 100 dB with four blades on the aft props (15:20). The Joby S4 is barely perceptible in comparison. Thank you very much!

[@mike33398109]

@@sphudsonThanks. Also look at time (11:52) when they are spooling up.

[@TheBagOfHolding]

@@sphudson they need to focus on payload and distance. The sound of an empty craft isn't going to be the same as a fully loaded one.

[@SchrodingerPants]

The altitude difference of the vehicles during flyover differs by an order of magnitude. Making uninformed critiques of the performance based on this comparison is a waste of time.

[@mike33398109]

@@SchrodingerPants The Joby takeoff is at 40 meters (0:43). The Archer takeoff is at 85 meters (11:50). That is a 6.5 db penalty for Joby! Have another look. The quality of Joby's db's are so, soo much better. Mostly sounds like wind or background noise, barely perceptible, not a swarm of angry hornets like Midnight.😂 Good luck.

[@SchrodingerPants]

@@mike33398109 I guess when you neglect minor details like gross weight, power consumption, and thrust-dependent prop speeds it all seems so simple and clear cut. Good luck to you!

[@TheHustleBrothers]

Archer Aviation vs Joby Aviation - Which is a Better Investment? kzbin.info/www/bejne/hHzOl4Jqf56YqJY

[@user-lf3pn4bn5l]

아처.. 데시벨 엄청 높네

[@philiasalis8134]

Archer is too noisy to fly around buildings in city.

[@TheBagOfHolding]

What about the sound with 1000lb load?

[@mike33398109]

Do you mean even more intolerable? 😆

[@TheBagOfHolding]

@@mike33398109 it would be louder. My toy drones are louder with heavier batteries than light ones.