M61A1

I think that it is way more complex than comparing numbers of deaths or even hours. I think some comparisons between bike and rec flying are valid, like the fact that a lot of motorcyclist crashes happen on weekends in fine weather, mainly because that's when people participate in recreational activities. Those that do it for fun , as much as we may not like it are likely to be less current than those who do it every day for a living. Both are less forgiving if errors are made and small error is likely to have significant consequences. Perhaps there are correlations between age and crashes in both, but perhaps we needn't bother being concerned about that as long as there risk to the public is minimal. Probably the biggest factor in the safety of either is the pilot or rider, how do you assess that? Some people seem to be the ones that always having mishaps while others seem to never have problems. It's not like comparing airlines or bus companies, how can you arrive at meaningful conclusions when the single biggest factor is you? There many factors to consider and I would consider the data absolutely meaningless unless it's done properly.

A considerable portion of drivers around here are incapable of maintaining anything close to a constant speed On any given day. Staying between the white lines is also considered optional. What does that say about their competence? One of the hardest times I’ve ever had to stay awake was on a brand new stretch near Dalby. Dead smooth, straight and forced to drive at 80 because the lines weren’t painted yet.

The big question is id he learn from that, or does he still do it?

I hate the gizmos, especially all the touch screens. The problem with them is you have to look at them otherwise you cant touch the correct button, proper tactile switches or buttons are my preference because you can feel them without taking your eyes off the road. They also destroy your night vision, even if they are dimmed. I am a fan of cruise control, otherwise I find myself upsetting the police and spending lots of money.

Sometimes they appear to have an instructor on board. I would certainly be radioing back requesting the information if I thought they were near me. They use Stanthorpe, Pittsworth and Millmerran a lot. I have to put two and two together and work out if I could reasonably interpret what was said and whether it's relevant to me. A typical call might sound like.....Danfor twaffee Dymon Tar Yankee something something wuh fy mile uh ees a fee fowsan fy hunred fee tack uh wess to Wellcam Danfor twaffee.

Are both of them open directly to cabin pressure or does one have a dedicated static port elsewhere?

As long as you’re competent I don’t care. The problem seems to be they think going slow compensates for lack of competence. It may help for a while, but sooner or later they find themselves behind the machine and it’s all over, hopefully only for them, too bad if it’s a motorcyclist and not a semi.

There is at least one that is training at Wellcamp that despite being clear as a bell, is completely unintelligible. About the only word I can pick out is “ traffic “, and possibly only because it’s the second word in the transmission and sounds a bit like “traffic “. I don’t know what the fix is, aside from more stringent oral assessments, but these guys are mixing with RPT, and I would have thought it might be quite important.

Driving around a paddock may be second nature, but from all appearances around Here that doesn’t even go close to managing light traffic in town.

Sounds exactly like my grandfather..."I'll drive at my own SAFE speed", blissfully ignorant of the trail behind him. Whenever we have some good rain here, you can count on them to almost stop on the only bridge in town to see the water level.

Cut and paste from news article.. Double standard much??? If it's ok to protest, it's ok to do pretty much evertything. Victoria Police closed a popular Mornington Peninsula pier over concerns that locals and visitors were not “observing social-distancing requirements” just two days after thousands marched through the streets of Melbourne without penalty. People would be “moved on” if they visited Rye pier and more local attractions would be shut if social-distancing was not observed, the police later said. The apparent double standard in policing comes as health authorities consider lifting social-distancing restrictions more quickly and pressure mounts on states that let thousands of people march in Black Lives Matter protests on Saturday.

I'd be a bit suspicious of someone who locks down a state, not even allowing decent funerals and then allows thousands of Bacon Lettuce and Mayo protesters to do what they like.

New Zealand was put into an extreme lockdown by Saint Jacinda, probably slow due to covid restrictions. Maybe very slow if they had to order the Sensenich blades from the USA.

Half the farmers around here will be fine then, 75 seems to be what they like. Although learning the right of way rules will have a better effect on their longevity or those sharing the road with them.

The study link I posted earlier covers that. Table 11. on page 13 tells us that about 90% of motorcycle fatalities happen on fine days. another graph shows that more happen on weekends than weekdays. Dissapointingly they note that "excessive speed" is: ‘Excessive speed’ refers to a vehicle speed that was above the posted limit or deemed by police to be too fast for the conditions. This is way too subjective. Can you imagine every aircraft investigation including speed as a cause? Essentially because if the weren't going that fast, they would have died from the impact. They may be a very capable vehicle, but a lot of those driving them seem to actually think they are driving a battleship, and have no regard for other road users. Last time I was coming down the mountain at Queen Mary Falls, I had to run wide on my bike because there were a heap of them running wide around the corner with the lead F*#kwit on the two way radio and unable to steer properly. There have been a couple around here that have made similar errors but with semis and are no longer around to do it again.

From a study.... https://www.infrastructure.gov.au/roads/safety/publications/2008/pdf/mono20.pdf About 42% of motorcycle fatalities are single vehicle and the following table from that report give the figures below. Table 24. Responsibility allocated to operators in multiple-vehicle crashes involving the death of a motorcyclist, 1999-2003 Factor % Motorcycle rider 55 % Other vehicle operator 29 % Both 13 % Unknown 3 % Total 100 % So....42% crash all by themselves and 55% of the 48% of multiple vehicle crash fatalities are to blame. I enjoy motorcycling myself and have done so for some 40 years, but sadly as much as motorcyclists like to blame car drivers for most crashes, it's just not true. I have read several articles with the same conclusion. Like this.... https://amcn.com.au/editorial/the-c-word-why-riders-crash/

You might find that it has nothing to do with that. I converted mine from nose dragger to tail dragger solely because it's way better for off field operations. I got rid of a weak nosewheel, reducing the likelihood of ending up on my back, it's lighter and it's more stable on uneven ground because there more distance between wheels. The original nose dragger was only about 1200mm between main and nose. Terrible in a rough paddock. However if it's designed solely for nice even surfaces, I see the point.

Perfect...

Surely you meant to say "Dear Leader, Chairman Dan"....

Where are those ones? We’ve got a huge crop of them sprung up just west of the Bunyas. This was taken over 12 months ago, there’s heaps more now.

According to the graph in post #29 CO is sky high at best power. I’m fairly sure the AFR gauge is measuring residual oxygen as it uses a Bosch O2 sensor. I found that regardless of altitude with a fixed power setting and attitude rpm would drop off ( an indication of power loss) at ratios below 12:1 and above about 12.8:1 there was less power available at higher altitudes obviously, but you could get the most out of it with the right mixture settings.

https://www.justraceparts.com.au/spartan-2-wideband-gauge-kit-52mm-lcd-air-fuel-bosch Needs to be a wideband sensor, narrow band are much cheaper, but useless for this application.

A good point, perhaps what I should have said is that just 5200 rpm isn’t enough information. Whereas 5200 at a specific manifold pressure will get some data. Did you look at the Rotax graph?

Yes, having a mixture control only allows you to adjust it, that was the point of the question. Not sure what Bird Dog is flying, but a Rotax with standard Bings at 9500 feet will be very rich as I found with the Air Fuel Ratio gauge fitted. I gets as bad as below 11:1 or richer. The mixture control allows you to get the ratio to a point where is makes more power and uses less fuel if that's a concern. At 9500 feet a 912 is a slug and I would suggest that running LOP, which significantly reduces power will just make it even worse. If he's not flying behind a 912 then it's a different story, maybe there are horsepower to spare. With a 912UL I don't care about LOP, I want all the power it can make, when I want it. Sure it runs smooth at 9500 feet, but it's rich as hell and by leaning it back to optimum power it's still smooth but has significantly more power and because of that will cruise faster and use less fuel. I provided the graph for the O360 at post #29.

That has too many variables. The type of aircraft and prop, the throttle setting giving you 5200 can vary wildly. I can only assume that you mean straight and level in cruise, but pitch settings affect that a lot. the rotax operator manual has a page with fuel flow, but doesn't chart altitude unless you can derive that from manifold pressure.