IBob

On that same subject: we are taught that the way to do a good visual scan is in successive short overlapping visual sectors, rather than in a continuous sweep. There is endless flying footage on YouTube etc. I don't know that I have ever seen a pilot there scanning in sectors, and more often than not they don't even appear to be doing any sort of sweep....

Yes. Following a double fatal midair here, we got a detailed look (during preparation for the proposed court case) at the limitations of 'see and avoid': Notably the closing speeds vs the considerable amount of time typically required to first spot the aircraft, then register the danger, then react to it, then for evasive action to actually take effect. Also a study carried out years ago in the US: the pilots were told it was to provide data on how they managed their various inflight workloads, but they were also instructed, in passing, to call out any other traffic they may see. Flights were then arranged, unbeknown to the pilots, with a number of traffic intercepts.....not collision stuff, but quite close enough to see. On average they missed seeing 40% of that traffic.

FWIW flocking is now a thing in the skydive world: opening extremely high then flying around in a big mob formation.......

That is a 912 UL, with a lower compression ratio. I never tried, but I'm doubtful I could pull a 912 ULS over that briskly. Still, I stand corrected!

Okay, that's a revelation!

As pointed out by others above: 1. Burping the Rotax relies on blowby to pressurise the crankcase and push the oil back. That being the case, you are no better off pulling it over briskly: you are actually better to linger in the compressed state, so maximising blowby. 2. You can't hand start a Rotax. The reason for this is that the power for the ignition comes only from little dedicated stator coils and the engine has to be turning over very briskly for these to generate sufficient power. Having said that, one still reflexively checks 'mags off' before pulling it over....

Marty, I recently searched the thermal conductivity of wood. In the same paragraph, AI stated that thermal conductivity is higher in denser woods (makes sense), it then stated that denser woods are preferred in building due to thermal insulation properties. It then changed it's mind yet again in the next paragraph. What this illustrates is that, while the thing is writing English (so appears logical), it is not actually in any way checking for logical consistency in what it writes.....(

Hi Marty, my kit came from Oz, and the then dealer supplied bellows type 'rubbers' to go on steering rods and throttle rods. I don't have the details of those, but he also supplied a pattern for making a protruding collar round the rod slots, attached to the firewall, which the big end of the bellows then fitted neatly over. It looks an odd shape, but when you rivet it's ends together to make an oval, it is angled so that it attaches to the firewall in line with the rods (not perpendicular to the firewall as a single width band would). See Boot Bracket, below. Boot Bracket.pdf

And wasn't he (the copilot) there to try and keep an eye on Hollands and his behaviours?

How fortunate were they to all get out alive???

Skippy, a short anecdote to support my much earlier suggestion: The Savannah puts hot air into the airbox when carb heat is selected. I had poor indicated carb heat, which I improved a bit with some attention to the ducting, but it was still very poor. So, either I had poor carb heat, or I had a faulty carb heat reading. If I could determine which, I could then greatly narrow down the problem. I bought a very cheap digital temp gauge with a 1m probe lead, tested it (iced then boiling water) and installed it in the airbox. And got the expected much higher readings. So, faulty carb heat reading. (There is a further 'gotcha' in this, but I'll put that at the end.) It seems to me you have a similar situation: is it the fuel pressure, or is it the fuel pressure sensing. In your situation I would be strongly inclined to temporarily install a steam gauge. You will then know which side of the question to be looking at, greatly reducing the number of possibilities and variables that you are currently chasing. (The gotcha: had I tested the probe supplied with the kit (iced then boiling water), I would have found nothing wrong with that. The problem wasn't the sensing, but the probe type (very short) and it's mounting (into a thick threaded bush in the airbox wall). So what that was measuring was not air temperature but airbox wall temperature. And the wall is constantly cooled by outside air. I did write to ICP about it, they thanked me politely, but I have no idea if they made any subsequent changes.)

You missed out the pole dancing???

I bought mine from Cleaveland Aircraft Tool, good quality and nice people: https://www.cleavelandtool.com/shop/kwik-loc-cleko-type-fasteners-packs-149?category=54#attribute_values=103

Why? Presumably it sells Red Bull by keeping the brand highly visible with dangerous/edgy/exciting/dramatic stunts.

There was an old (silent, I think) movie where someone climbed down a rope ladder from an aircraft onto the roof of a moving train. As I recall, they killed 2 stuntmen before the third managed it. I think part of the problem in that case was the pilot couldn't see what was going on with the man swinging on the ladder below and behind him.