The transparent ClearType auf Tesa - but you can use any type of tape which is fitting. The most important is that the propeller allign itself when the Motors starts with low rpm like they do at hand start.Which type of "Tesa" tape did you use?
I think a tighter fit is a good thing, if the fit is in the correct unfolded prop position and a bad thing if in a wrong prop position....
I do wonder about the tighter fit if that is a good thing or a bad thing.![]()
Hello,[QUOTE = "Cipta, post: 17080, member: 1845"]
Secondo me non è il massimo se il puntello è troppo largo sui bulloni perché troppo spazio nella maggior parte delle parti meccaniche dinamiche porta a comportamento indefinito e sollecitazioni dei cuscinetti. Qualsiasi cambiamento di rpm causa un disallineamento e uno squilibrio - stress.
Per quanto ne so, i puntelli pieghevoli più seri non sono allentati sui bulloni.
[/CITAZIONE]
very interesting. I ask if you can show a picture of your Anafi to understand how you put the "tesa" . Thank you.
Main thing is, that the props unfold by centrifugal force and reach the unfolded position easily. Nothing else is important.Hello,
you would see nothing at a picture with transparent Tape
The dimension of tape are ~ 5mm x 6mm so it doesn't overlap when warped around the shaft. I also have tried a aluminium tape but it was a little too thick and the props didn't align in the low rpm during handstart which I prefer.
At the moment I cant find any disadvantages except to have roughly unfold the props before start. So for me the advantages are more dominant and I don't have any dent from the bump because the tighter fit they will not reach the opposite screw.
Well I guess it was bound to happen. Threw a prop for the first time in 275 flights. It let go at the hub, Anafi did the Flip-O-Death and it fell to the ground. The motors shut down as soon as it was inverted so no Solo like dance on the ground.
Broke an arm so I guess I'll try some CA and lightweight fiberglass cloth to repair.
Replace props after how many flights? Post #13.
Wow, you are WAY beyond that!!!I'm going to use 150 as maximum, along with minute inspection with a loupe at all hubs every 10 flights or so.
I REALLY don't want to lose a prop in flight! They are cheap compared to a broken Anafi.
Sorry, I thought you meant that they had 275 flights on them. It does sound like a defective prop, for sure.I replaced these props with new Parrot props not even 25 flights ago; ...
You are not comparing like with like. Without knowing the forces on the Anafi blade during flight and the strength of the material it is impossible to say what factor of safety Parrot has built in. They would also have to take fatigue loadings into account which can accelerate growth of any small cracks in the blade. If the fracture face is available then it may, under a microscope, be possible to determine whether it was a fatigue failure or not. As you say they have to make it as light as possible, as with all flying things but it may be close to the limit.
If the blades are not perfectly balanced then the strain on the hub section is significantly increased through vibration, and this is particularly relevant for the Anafi since the hub is far away from the centre of rotation.If I had any concerns it would be the interface between blade and hub, and hub / hub screw itself.
It is a locking compound similar to LockTite.no one has emailed parrot and asked them about the blue substance yet?