4score
Well-Known Member
I left them a phone message over the weekend and said that with this QA problem, their reputation is getting trashed. They NEED to provide an update....at least on their website.
Just got a refund as well ... but no explanation , would love to have received that also ...I got a response and a refund today via PayPal -- seems like this is the fastest way
Just got a refund as well ... but no explanation , would love to have received that also ...
Anyway , maybe we get it later on ...
I definitely won’t be re-ordering again. Just flew two great sessions (six batteries) over the Australian coast with DJI MA2 stock props. They performed perfectly. Rock solid ??Wrote to Master Airscrew 2 times, no reply for almost 2 weeks. Opened the case with PayPal yesterday and today it was confirmed by Master Airscrew and money was returned back. So I have 2 packs of bad props but at least money returned... We see if Master Airscrew fix the production and I will reorder again.
If the production is improved, I will reorder. Any positive change in the noise is very welcomed. Here in EU I frequently fly close to small villages where the drone is gaining attention because of noise. Master Airscrew props are definitely better sounding for sure. Not a much, but still noticeably better.I definitely won’t be re-ordering again. Just flew two great sessions (six batteries) over the Australian coast with stock DJI MA2 stock props. They performed perfectly. Rock solid ??
So I have been using MAS stealth props for several months with no issues. I have found them to be more fragile - clipping a twig with MAS props and they disintegrate, with DJI props they chip but don't shatter like the MAS props. Regardless I swap props as soon as ANY damage occurs so this isn't a deal breaker for me.
However yesterday I was out flying and noticed a pronounced wobble or vibration just after takeoff, I could hear the oscillating sound of the props as the aircraft shimmied and shook. I replaced the props with another set of MAS stealth props and it was exactly the same. Just after takeoff the hover was steady for a moment then the wobble started.
I initially thought it may be firmware related as I had just upgraded to V01.00.670 from V01.00.510 and this was the only difference from the last outing.
Anyhow on returning home I did some testing. Rolled back the FW to V01.0.510 and took the drone out with MAS props and hovered, there was the wobble, switched to another unused set of MAS props and still the wobble. Switched to DJI props and no wobble.
Upgraded the FW back to V01.00.670 and got the same results, wobble with MAS props no wobble with DJI props. SO that was the Firmware ruled out and the MAS props were the culprit, so why now after using the MAS props for months with no issues. Well it was -19 degrees C when I flew and noticed the issue and when I did the FW test it was -15 degrees C. So to test the temperature theory.
I set up the aircraft with room temperature DJI props and went outside in -15 deg C and hovered the aircraft for 3 minutes, no wobble. I went in and swapped the props for room temperature MAS props, went outside and hovered the aircraft, after only a few seconds the wobble set in. To confirm the temperature effect theory I took the aircraft inside and swapped the cold MAS props for a room temp set and hovered aircraft inside for 3 minutes, no wobble.
So I have come to the conclusion that the MAS props are not suitable for cold weather flying, DJI props work well at low temperature so I will be sure to get a couple of sets of DJI props for winter excursions.
Not sure why temperature would affect the MAS props and not the DJI props and I am not sure what the threshold for the MAS cold temperature wobble is, I have flown with the MAS props in -5 to -10 deg C and not noticed any issues at but -15 to -19 deg C I won't be using them!
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