onetrack

ABC is reporting that rescuers have deemed the crash of this light aircraft "unsurviveable", and are presuming the occupants, a man aged 73, and a woman aged 75, are deceased.

https://www.abc.net.au/news/2023-10-29/two-people-presumed-dead-in-north-queensland-light-plane-crash/103036876

Helicopters missing and crashed don't seem to rate as high as light aircraft missing and crashed, on here. The disappearance of the R66 seemed to be overshadowed by other bad news, such as Gaza. 

Red, that's old news. The wreckage of the missing R66 Robinson has been found, police divers have dived on it, and recovered some items from the wreckage.

Included in the recovered items is an on-board camera, which the ATSB is hoping will yield some information on the crash. Neither the pilots body, nor his dog, have been found.

I would hope he had the dog properly restrained, and I would hope that something the dog did, wasn't the reason behind the crash. The R66 was relatively new.

https://www.news.com.au/travel/travel-updates/incidents/grim-discovery-in-search-for-missing-helicopter-pilot-and-dog/news-story/8b54c6a53ab7db9cdc175a66d81a78b0

C'mon fellas, let's not get into mudslinging and personal attacks, everyone is entitled to their opinion, even if you totally disagree with it. 

Oh dear - where have we heard this before? ....

QUOTE - "we learned that one of our overseas contractors had used an inferior primer, resulting in aluminum corrosion forming on a large number of quick build kits. This required us to scrap many kits, while further increasing production to replace affected kits. This alone represented a multi-million-dollar setback for us."

If you hand over manufacturing to an overseas supplier and do not install on-the-spot QC checks, of course a supplier is going to try and ream you. Oldest trick in the book, and one especially prevalent in Asia.

No further accurate info yet, but the reports are saying "grave fears" are held for anyone on board the aircraft. That's some real Tiger country up there, I've been through that region - "inacessible" is a good description.

https://www.dailymail.co.uk/news/article-12682293/Finch-Hatton-crash-responders-rush-scene-light-plane-crashed-mountainous-inaccessible-terrain.html

My apologies, the videos and news articles made it look like you were operating on Perth Water.

36 minutes ago, BrendAn said:

i test drove a boat there with a dealer from fremantle and we went flat out , that was years ago though. in the mudskipper video there is a boat speeding past in the background.

The boat speeding past in the background is most likely operating in the high speed watersports area. I've done enough boating on the Swan River to know where the speed limits are.

Perth Water is between the Esplanade and South Perth. Melville Water is a different patch of water again, West of the Narrows bridge. Melville Water is open water.

It looks like an Infinity 1 to me.

https://infinityaerospace.com/product/featured/infinity-1-quick-build-kit-canard-sport-aircraft/

Stand and ride, hands free, on a delta wing canard aircraft? I'm not entirely convinced that would be easy to do.

Convair CV-990

The circumstances behind this crash just makes you wonder if any EFATO situation plan was ever discussed before takeoff. To start a LH turn and bank and then change that to a RH turn and bank after the EFATO, seems to me that no EFATO plan was discussed - or if it was, it wasn't followed.

Convair 880

Nev, you've been listening to, and believing too much breathless marketing hype. There's not a hope that any petrol engine can ever come close to the torque output, economy or efficiency of a diesel engine.

The simple reasons are that diesel has a considerably higher energy content than petrol, it is a much slower-burning fuel, and a diesel operates at a higher compression than any petrol engine.

If petrol engines could even remotely hope to match diesels in torque output, economy or efficiency, then the major diesel engine manufacturers would now be producing petrol truck and tractor engines again.

All vehicles for at least the last 25 years have had CANbus architecture installed - the system used to ensure that ECU's, microprocessors and sensors can all communicate with each other.

It is one of the most important developments since the silicon chip. CANbus architecture is used in a myriad of machines, not just cars, trucks and aeroplanes.

We would never have the integrated functionality of modern electronics without the CANbus system.

https://www.can-cia.org/can-knowledge/can/can-history/#:~:text=In February of 1986%2C Robert,most successful network protocols ever.

ECU's, microprocessors and sensors in automotive applications are reasonably reliable today. The greatest single failings of electronics in automotive applications today is inadequate protection of harnesses and connectors, and major contaminants such as water, dust, chemicals from soil and air getting into these areas. Damage whilst in use, and faulty assembly, are the other areas that produce faults.

Electronics are complex on IC-engined equipment, because IC engines in themselves are complex devices, with many demands for rapidly changing inputs and controls. Electric motors are much simpler, they only require input power and a method of controlling it. Regenerative braking or battery regeneration under deceleration is a huge hidden asset of electric motive power.

Vast amounts of energy are wasted by IC engines - in wasted heat, in unnecessary fuel burnt just to keep things ticking over. An electric motor only draws the level of current and produces the power output required for any particular time and level of power demand. Once a vehicle is rolling, only a tiny amount of power is needed to keep it rolling. An IC engine produces far more power than needed, under light load.

Aircraft are a somewhat different kettle of fish as major power draw is needed to take off and climb to the selected flight level. But even in level flight, aircraft demand more power to keep up the desired speed, as aerodynamic drag is a massive drawback to cruising through the sky.

So, electric aircraft will always be behind the 8-ball, as compared to road vehicles, and until major gains are made in battery lightness and energy density, pure electric aircraft will never ever be competitive for anything more than short hops. On that basis, I see hybrid power as being more likely to be the power source for longer-haul electric aircraft in the future.

With the incredible amount of money and research effort currently being poured into battery development, we can look forward to battery energy density increasing to a viable level within a few short years, possibly as little as 5 years.

https://www.monash.edu/news/articles/smaller,-lighter-lithium-sulphur-battery-lowers-costs-and-improves-recycling-options#:~:text=Smaller%2C lighter lithium-sulphur battery lowers costs and improves recycling options,-13 October 2023&text=Researchers at Monash University have,required in a single battery.

Somebody just being silly, they placed the chocks there for a laugh, just for the photo.

Article here ...

https://particle.scitech.org.au/tech/aussie-first-electric-plane-takes-to-wa-skies/

You blokes should know there's more flying things than just aeroplanes. It's the front landing gear on a CH47 Chinook - the front wheels are duals, the rears are single wheel. 

They normally land straight down, so rarely very much by way of any skid or drag marks. Sorry about the photo quality, it's over 50 years old.

Notice how all these craft are shown operating over relatively smooth water? I wouldn't like to be on one that encountered reasonable-sized waves. Even flying boats are limited as regards wave height when landing or taking off.

Speed trolling for herring?   Did that with a mates speedboat off Dunsborough - and we caught a Salmon!!  LOL

Toilets were introduced in 1928, apparently - but I don't think they were anything more than a modified bucket, in that era.

https://simpleflying.com/interwar-period-flying-guide/

Mr Sheen works just as good on acrylic as Vuplex does, and it's a third of the price. Vuplex is a rort.

There's been a substantial number of fires in earthmoving equipment, where the machine burnt to the ground. In virtually every case, the major fire cause was a burst high pressure oil line near the hot exhaust manifold.

Lube oil sprayed in a high pressure fan spray pattern over a hot manifold, most certainly does burst into flame, almost immediately.

You wouldn't think an item of heavy construction or mining equipment would burn, but I can assure you, they burn as well as anything else. I can well imagine how much a small initial fire on an aircraft would be fanned by airflow.

https://www.resourcesregulator.nsw.gov.au/sites/default/files/documents/fires-on-mobile-plant-january-to-march-2019.pdf

I was always under the impression the instant a craft left the ground (or water) and became airborne, held aloft by air flowing over and under wings, it is classed as an "aircraft". This bloke seems to have convinced the bureaucrats otherwise.