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Helicopters have their blades above the fuselage for obvious practical reasons - getting on and off the aircraft would be a bit hazardous if they were anywhere else ;). Plus there's a flexible joint between the two, so tilting the rotor doesn't need to fight the inertia of the fuselage. I'd...

I've studied (from afar) all the mounts available on the market for large DSLRs. I quickly came to the conclusion that nothing out there would meet my own particular requirements, that most of them have glaring engineering "issues" that would prevent them from ever excelling at their role, and...

I tend to agree with @windhorny - using a DSLR for aerial video is a compromise at best. Certainly you don't need the shallow depth of field "look" which is the main reason it's so popular with film makers, so the only justification is avoiding the cost of a dedicated video camera. As with...

Crash - feedforward tuning will be redundant when the OP-ESC comes out: it will have full feedback to the FC, including RPM :) My guess (not knowing too much about this stuff) is that the CC accels' won't be sensitive enough to register much above the noise floor. A nice project for somebody...

Looks like the gimbal's okay?

The Bart Arms - thought that was the pub we're meeting at ;) Nice idea! Airflow off a prop is theoretically a spiral and I'm guessing it's precise direction will vary with throttle. Streamline tube is a bit of a headache - only available in aluminium (that I can find) unless I commission a...

Runout? On a Plettenberg? ;) Seriously - yes, I believe you're right. It's another of the reasons I favour the heli-style mounting. It does tend to bring the prop closer to the arm, though - a potential disadvantage (that's hard to quantify) - arms shouldn't round anyway (and definitely not...

Sure - but it's weight on or close to the axis of rotation, so it's not going to raise the inertia by much. My reason for preferring to mount the motor the other way is really my dislike of the exposed/vulnerable motor position (and the vulnerable wires) when using the DW scheme (especially for...

Yep - just like a car - one common ground for everything - very important for a well-sorted system :)

Mmmm... very interesting! Funny thing is, I could use the lower Kv and the additional balancing, for sure, but the shaft mods would be a little redundant for my application. I actually like the motors mounted heli-style, through a mounting plate. The weight saving of 27g, across six motors (in...

That price is one heck of an "ask" for a complete unknown. Incomplete specs, too, so I can't even set it up in eCalc.ch to give it a virtual whirl. Watch out for Cobra - he's go to launch a whole series (his words) of multirotor-specific motors.

ah - okay - I see what you're asking now - sorry :) As far as I understand - no, there shouldn't be any problem using it that way at the moment, just so long as you know what's what within the GCS configuration. Set it up as a "Custom" aircraft type - three channels (servos), each responding...

I like the sound of Tucker's solution. You might be able to get a VERY SMALL zip-tie around the back of the PCB header to keep the connector pulled onto the header.

The basic answer is that there shouldn't be that much vibration getting through to the board. Is this on an MK?

There's no "challenge" - the software changes to make it happen have been (mostly) written, but they are not yet published, that's all. Here's the latest report, straight from a senior dev:

Slewing is what that video of the elephants is doing - the camera is "travelling" and the operator is "slewing" the camera as the craft flies over them, thus keeping the elephants in the centre of the image. "Traditionally" (e.g. from a helicopter) this camera move has been done entirely...

Sounds to me like you've got one or motors turning in the wrong direction, so your net torque effect is continually twisting the craft that way.

They are showing (here) a standard Orbit 15... with the optional "axle at the other end" kit... to produce this... Prop attachment will be with a collet-type prop adapter.

John - what info am I not seeing?

Building a "super-heavy-lift Y6". I agree most of the Plettenbergs are high Kv motors for racing - but not this model. Axi would be a better choice if they made a motor that performed similarly - but they don't :)