Monthly check reveals a new layout, which in some ways is not as clear as previous and a good deal slower and so I don't dwell as long as I might. Perhaps inevitably, it looks like a reasonable guide as to who might be gearing up for prolonged conflicts: the bulk of downloads in the US scattered among Silicon Valley and Washington DC, a number in both China and Israel and even one in Zaoprizhzhia. Besides being one of the hardest towns to spell, it's also on a frontline and somewhere apparently that is more interested in the notion of a self-launching boat than I am presently. This is unsurprising in view of the fact that theoretically it could be launched from a covert location on land to find the sea itself and go on to do whatever it was designed for: which I fear won't be childrens' birthday parties.
But the DARPA Lift 4 challenge just wound up and the sort of thing I'd have been up for sooner in life; but the whole idea of the public coming up with military solutions is relatively new in the US and non-existent in the UK, each having been borne of a patriarchal society in which you're not expected to come up with ideas unless you're on the payroll.
To qualify you had to be native to the US, which led to the bizarre conclusion that the winner of the challenge would be Canadian, but referred to by DARPA as a US entry viz. Avidrone. The aim of the challenge was to get a drone to lift four times its own weight and haul it over five miles (or it may have been minutes). To put it into context, DJI's agricultural drones used for spraying ~ which US farmers are crying out for ~ can lift just half of their own weight. Difference being, they can do so for much, much longer.
Disappointingly, although the top three entries from some eighty-odd got close, no one hit the 4:1 mark and of those that did, first and third were conventional helis. This is astonishing, not least because (a) they've always given away 20% efficiency to offsetting torque with a tail-rotor and (b) the winners specialise in dual-rotor types like the Chinook that do not suffer in the same way. I may mail them to ask why, but probably won't so you'll have to do it yourself.
What was good to see was that torque-less systems like that of the Fairey Gyrodyne appear to have been in the ascendant; although clearly not ascendant enough on the day. I've a couple of ideas up my sleeve for improving the efficiency of a single rotor that too is torque-less and that might best that magic ratio, but if I do so at all it will be via uploads to the Digital Commons. Then again there's a guy in the Lake District with a set of 23-foot gyroplane rotors for sale, which is quite the sort of thing I'd happily waste my money on.
The interest in replacing pin- and pass-codes with faces you might recognise (and others may not) appears to be gaining traction because as Victor Hugo suggested, there's no stopping an idea whose time has come. The ongoing interest in a drone that can lift an upright operator stood in a minimal phone-box eludes me however.