"I am not impressed at all with these "placebo" ducted propellers.
Using a 2 blades propeller where tip is not even close to the duct won't suppress the tip disturbance.They could at least 3Dprototype their blades, and expose what a company can make…"
Perhaps you read my post about propeller guard I made with Shapeways last year.
Now, I print quite detailed parts myself
If you wish it, send me the STLs of this project, or others, and I can print them for you, with pictures of the…"
you could add this 3D printed hand InMoov, your picture says it all!
I probably try the same chinese filament supplier, buying 25kg of ABS to reach a good deal on shipping cost.
3D printer is UAS/UAV best friend!"
"Navigation aid, GPS being of one among others, is not concerned by aircraft piloting.
Aircraft piloting, or vector management, apparently assisted from the ground.
All kind of aircrafts were already flying well before GPS became available.
900mHz and 5.8gHz have very different propagation pattern, one being quite 'omni' (900) and the other being "line of sight" (5.8). For this reason, this wide band antenna you would wish is hardly conceivable.
We suggested to couple an omni…"
""24dBi High gain dish antenna" for which frequency range?
For a ground station, often an omnidirectional is combined with a directional, switched by diversity, so on top of a moving vehicle, the same combination of directivity would seem a good…"
Apparently, the APM is in quad config coax, X8. But, only 4 motors are used, the 4 remaining are like a backup. A quad with upper props spinning, and bottom ones unpowered. The 2 pololu boards are configured to react differently, based on…"