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Recent content by Jwelz

  1. J

    Master Airscrew props....

    If you fly near where you live, the highest ground elevation is under 4000' in Wales so it makes sense that the standard MPP low noise props would work quite well. I doubt that the flex in the props is by design. It probably is a characteristic of the choice of material and the needed strength...
  2. J

    Master Airscrew props....

    I'm confused by the comment about the gimbal smoothing up and down. A gimbal preserves the direction the camera is pointing and mitigates rotation on the roll axis but can not reduce vertical or horizontal displacement of the camera. I have read on the MA web page that their Mavic props weigh...
  3. J

    Master Airscrew props....

    The video would appear to confirm that the MA props would probably work well in thinner air in hot or high altitude conditions. Almost certainly you would get better performance flying in mountainous elevations than with stock props. As far as flex is concerned, a greater amount would allow...
  4. J

    Master Airscrew props....

    I would like a prop that gives an error in sport mode provided it was based on excess current. Reports of the noise from these props being less irritating imply lower RPM which suggest more pitch or blade area. For all the people saying they didn't get a sport mode error, at what temperature...
  5. J

    Where does the sky become FAA?

    That would be in the USA.
  6. J

    Visual positioning and barometer while flying above water

    Sufficiently clear water can act like glass and your Mavic may be seeing the river or lake bottom and not the surface. If the craft was heading towards deeper water, it may have been following the ground surface beneath the water. The bottom infrared sensors may get reflected signals from both...
  7. J

    A wall flying at full speed.

    Just to verify my earlier response, I had a look at the manual for the Mavic 2. This claims a maximum speed for effective forward obstacle avoidance is 14 metres per second so it should be able to stop in time provided the obstacle had the correct attributes for detection and the light was good...
  8. J

    A wall flying at full speed.

    My original Mavic Pro does a great job of stopping when using the front facing optical avoidance/detection cameras even at full speed P mode when there are clear unique vertical edges in the field of view. As far as horizontal lines or markings are concerned, all forward DJI obstacle avoidance...
  9. J

    Highest take off altitude for mavic 2

    Besides temperature, the problem at altitude is that air density is diminished. In the thinner air, the propellors have less to bite into and are unable to provide as much lift. The motors spin faster discharging batteries at a higher rate wasting energy as the props are more efficient in...
  10. J

    DJI Go4 Shutdown mid flight?

    I bought a formerly DJI recommended Android device to run Go4. The device is no longer on their approved list. Since that device had an Android version update, Go4 has crashed at least once per flight for every flight lasteng over 5 minutes and sometimes multiple times per flight. I have...
  11. J

    DJI Go4 Shutdown mid flight?

    Depending on how difficult to change a variable or parameter, it may be quickest to change 1/2 of them at once. If that fixes it, you undo 1/2 of those changes to see if it's still fixed. If it didn't, you undo the first changes and then change 1/2 of the things you didn't change the first time...
  12. J

    Be a big spender on your Mavic.

    Well... Go 4 is an app that is asking for permissions, based on your comment, for which there appears to be no legitimate explanation. Consider the fact that the app can run on a tablet without cellular service and runs just fine in airplane mode on a phone. That leaves only illegitimate...
  13. J

    Be a big spender on your Mavic.

    With the latest Go 4 app release, DJI no longer claim support for any LG phones. I tried it on my V20 just in case since it completely failed with an older version after an Android update but I can no longer get the app to even start without giving it my contacts and the ability to make and...
  14. J

    Mavic Pro 1 vs 2 - "Lost" features?

    It's no loss. The handset I bought to fly my Mavic was on their official approved list for Go 4 but it crashed at least once on every flight over a few minutes. It was only removed from the official approved list with the very latest Go 4 update which I have never installed. I cleared off an...
  15. J

    Mavic Pro 1 vs 2 - "Lost" features?

    Revoking permissions causes my Go 4 to fail to open. The only thing it does is pop a message to allow the app to make and manage calls when it launches and then immediately closes if I deny access. I just tried it again. My solution has been to get a phone without a SIM card and completely...