New DJI 9450 Props coming out for P/P2/E300

[Wedeliver]

I am on my tablet so short sentences. Has anyone posted the wiki on vrs? I can't cut and paste with this tablet and I cannot find info on quads just single and dual props. What I am understanding from reading one that the vrs event only happens when under power. I got the feeling from reading that we don't produce enough downward prop
wash when descending by reducing throttle. And I get the feeling that real world testing of quads or more, is lacking.

 

[pyrophantom]

Im guessing that the new profile of the props plus the recent firmware update slowing down the rate of descent will prevent a lot of propwash and VRS incidents be interesting to see if thats the case but DJI wouldn't have done this for nothing.

:?:

 

[Mori55]

Never had vrs with my 450 and you could come down really fast with that.

 

[damoncooper]

I am on my tablet so short sentences. Has anyone posted the wiki on vrs? I can't cut and paste with this tablet and I cannot find info on quads just single and dual props. What I am understanding from reading one that the vrs event only happens when under power. I got the feeling from reading that we don't produce enough downward prop
wash when descending by reducing throttle. And I get the feeling that real world testing of quads or more, is lacking.

Start here: viewtopic.php?t=17468

 

[J.James]

Never had vrs with my 450 and you could come down really fast with that.

Same with my FC40 intill I tried to use a set of the phantom vision props on it and the gains not adjusted right and then had it happen a few times. and not ever expecting it or even experiencing it before with the stock props.

With the stock props I could decent as full speed with out any problems whats so ever. Which i think in gps mode on the fc40 the decent speed is 6 meters per second. or 8 I cant remember off hand but its the same as the max accent speed. But with the vision props it would go in to a VRS even if trying to autoland which is way slower.

 

[ianwood]

ElGuano, any further details? Would be great to hear your impressions on the differences in flight characteristics. Stability, smoothness, performance, noise, duration, etc.

 

[OI Photography]

I have a set too that I've been trying to test more thoroughly, but I'm trying to do it on windless days to keep the variables to a minimum, and I've only had one day like that since they arrived.

So far they have little or no difference in flight or handling behavior during regular maneuvers, they're a touch louder than the 9443's, and about 5-7% less efficient based on the hit to flight times.

I haven't been able to induce VRS with them yet but I haven't pushed too hard either. I can say that they do seem better behaved across the range of descent angles and rates I've tested so far...usually between 25-30 deg and 1.8-2.8 m/s.

On the one test I did with them in some breeze I did notice that they weren't affected quite as much as the 9443's when a crosswind hit.

 

[damoncooper]

Where are you guys getting these? Are they for sale anywhere yet?

 

[ElGuano]

Ok, I have several dozen batteries flown on these on a p1 and p2v+. General impressions are that these props are extremely stable. They respond more crisply than the 9443s, are a little louder, and cause the motors to heat up a marginal bit more. They take less throttle on stick to maintain hover in manual, and they absolutely bring you back to a hover faster than the 9443s during fast descent.

Overall efficiency is very close to the 9443s. I consistently get about 45 seconds to 1 min less with the 9450s (so ~16 min mixed flight on the p2v+ and the p1), pretty much what I was expecting given the higher thrust.

If you are experiencing wobbles or uncontrolled descents, I would definitely give these a shot.

What I can't do is reproduce terminal VRS. I never had a problem with it on 9443s to begin with, so I can't get a good bead on how the 9450s differ.

The power characteristics mean that these will be a useful tool in the tool chest, I'll pack them with the phantom whenever I travel to altitude.

 

[Mori55]

Got a link for these ?

 

[ElGuano]

Got a link for these ?

Don't know if they hit the shelves yet, but I think the release is imminent. Probably worth calling your preferred shop and seeing if they're getting stock?

 

[IrishSights]

Got a link for these ?

Don't know if they hit the shelves yet, but I think the release is imminent. Probably worth calling your preferred shop and seeing if they're getting stock?

For anyone in the UK, droneshack.co.uk had them in stock

 

[gardenroute]

Got a link for these ?

Don't know if they hit the shelves yet, but I think the release is imminent. Probably worth calling your preferred shop and seeing if they're getting stock?

For anyone in the UK, droneshack.co.uk had them in stock

Where ?

 

[gardenroute]

Got a link for these ?

Don't know if they hit the shelves yet, but I think the release is imminent. Probably worth calling your preferred shop and seeing if they're getting stock?

For anyone in the UK, droneshack.co.uk had them in stock

Where?

 

[IrishSights]

Got a link for these ?

Don't know if they hit the shelves yet, but I think the release is imminent. Probably worth calling your preferred shop and seeing if they're getting stock?

For anyone in the UK, droneshack.co.uk had them in stock

Where?

http://www.droneshack.co.uk/index.php?d ... uct_id=463

 

[gardenroute]

Its really 9450 props ?

 

[Original poster]

Its really 9450 props ?

Of course!

 

[ElGuano]

The site doesn't give any indication that they aren't standard 9443 props...I think this is a case where it's absolutely worth emailing or calling the vendor to confirm prior to purchasing.

 

[IrishSights]

I've been in contact with Steve at DroneShack and can confirm that the props on the site are not 9450's. My apologies to all if I misled you to think they were. It was a misunderstanding. Gotta say for DroneShack to get back to me on a Sunday afternoon is a credit to them. Sorry again.

Sent from Samsung S4 via Tapatalk

 

[damoncooper]

For the record if they can put them on the website and make them available they should expect quite a few purchases