This is Morty:
This is a Martin Jetpack:
Together, they are the SPAV: Surly Penguin Aerial Vehicle. The aim of this project is to build a platform for our stuffed penguin that can, under remote control, lift, hover and fly him around.
Personally, I’d rather just go straight for the obvious quadrotor design… but my spouse, Alison, really wants to achieve that jetpack look, so we’re going to start with a dual rotor and see what its limitations are. Predictably, we are already at odds over the fundamentals… shrouded vs. open blades, large vs small fans, steering vanes vs. tilting rotors, etc.
Because small things that go woosh make us smile, our first test is going to be simple:
We’re going to mount an EDF (Electric Ducted Fan) in a simple Goddard-like standing frame with the necessary batteries and control receivers, give it some ballast, and see if we can get it to hover. I think the power curve of these things makes them unusable for this application and that, if we want to stick with a dual rotor layout, we’re going to have to make a larger custom shrouded-blade device, but we’re going to be systematic about this and test thoroughly.
Whichever basic format we decide on will eventually be mounted on a thrust-testing rig (basically a frame and a scale) to see what the requirements are for lifting everything involved… including our cranky, stuffed little test pilot. Who will require vodka before and after every run. Lots of vodka.