M61A1

I’m sure our Defence Force could easily blow that budget just by taking over the contract. Then they would make it cost even more By incorporating other incompatible mods and then claim they bought a dud. As for the Aussie ex-fighter pilot, I’m sure that he will learn quickly that the idea (mentioned in his statement)) That the ABC might be fair and balanced is just wishful thinking.

I followed the link contained n your link. Does this help? An exemption applies automatically to every holder of a CASA issued medical certificate that was valid on 1 March 2020. The exemption effectively extends the expiry date by six months. All existing requirements, conditions or limitations (however expressed) of the medical certificate must continue to be complied with. The exemption operates by authorising licence holders and other aviation authorisation holders to fly without a current medical certificates for a period of six months beyond the certificates’ current expiry date. That means you can defer your next medical assessment if necessary.

If you use your "hierarchy of control", PPE comes in last. 1. Elimination- You could eliminate the risk by not flying....Not going to happen 2. Substitution- you could go in a glider.....not going to happen 3. Isolation- Still not going to work 4. Engineering controls- What the OP was looking for... There are several things that can be done from engine mufflers to cockpit soundproofing and so on. 5. Administrative controls- Won't do anything unless you use the paper as soundproofing. 6. PPE- Flash headsets, are great, and they work even better when you start by getting the cockpit as quiet as practicable to start with. There is more to high noise than just hearing loss. As I mentioned earlier, I have recently knocked about 10 db off cockpit noise and didn't think that much of it until a few longer flights over 2-3 hours and found that I walked away feeling way less fatigued than I had previously( even with ANR headsets). I had been thinking about it for some time but hadn't changed anything because people I fly with said it sounded great. It got the better of me and now I wish I had done it when I rebuilt it a few years ago. The noise generators that I have left will be very difficult to remove, but it's much more comfortable that it was.

There quite a few smartphone apps that will measure noise levels. I don't know how accurately they measure db, but they are good for comparisons to see if you made it better or worse and seeing which flight conditions are louder or quieter. Have you tried it with the fan off? You may be surprised just how much noise is generated by the airflow over "dirty" bits of the airframe.

Yeah, that's partial fix though. I was very surprised just how much less fatigued I felt after noise reduction, even with an ANR headset.

Yes, I have found that to work well. Or turn the ICS down.. Have you correctly identified the source of the noise? I had an 80hp 912 with a kit exhaust that was 95db in the cockpit. With careful internal baffling, I got down to 85 dB, in cruise, most which is wind noise. I don’t think it’s any quieter than a proper Rotax exhaust, but even at full power it gets quieter as you pull the nose up and slow down. Anyway, the point being, is it all engine noise or is it airframe noise?

They're going to put a clock on the leaning tower of Pisa. That way it'll have both the time and the inclination.

If you enjoy those, you may enjoy this also....

Imagine The Titanic with a lisp. It's unthinkable. _______________________________________________________________________________________________ I ordered a thesaurus from Amazon but when it was delivered all the pages were blank. I have no words to describe how angry I am. _________________________________________________________________________________________________ I once dated a magazine collector. She had some issues.

I have not found a helmet to be particularly hot, in fact I find that keeping the sun off my head is always cooler than no hat, and my white helmet is not hotter than my black caps.

Like this....from Red's link in post #3

Having read a few studies they generally report that in fatal aircraft crashes, multiple injuries is the primary cause of death in about 42% of cases, followed by head injuries at about 22%. Non-fatal hospitalisations in aviation related injuries report the most common injury to be lower limb followed by head injuries. It has been said that in the case of the crash at Aratula earlier this year the the pilot would have walked away, rather than airlifted and hospitalised had he been wearing a helmet. That's enough for me. But, I would rather it remain personal choice than an enforceable law. I choose to and am fine with those who choose not to. I will also add that an aviation helmet is quite light (assuming you don't have NVGs mounted on it) and must not restrict your vision or head movement by design.

I have an old Alpha that has been converted to GA comms, a Lightspeed Zulu, a Bose A20 and an in ear headset. I love the in ear headset, the Lightspeed and Bose are awesome, but I end up wearing my helmet because even when wearing a cap my ears get burned with the in ear set, and with the Bose or Lightspeed, by the time I've got my cap headset and sunnies adjusted just right, I move and have to adjust them again. So I throw them over the back and plonk my lid on. It's nearly as quiet as the ANR headsets, and I just drop the visor in the sun. The crashes that worry me are the ones I read about that have landed in water or been on fire when the pilot has had minor head injuries and is unconscious and would have survived if they were awake to extricate themselves. It's not much of a stretch to smash your head on the panel in a lot of aircraft. In a lot of low wing aircraft, the panel may even meet you halfway.

Perhaps he deliberately applied power with the (mistaken) idea that it might help him get it back into the air before he hit anything.....

A bit like the runway...It's good for a rough check.

It's good for a rough check....Remember that runways are rounded up or down to the nearest 10°.

I just use a handheld magnetic compass to point my aircraft on the ground then swing it basically IAW the CASA document. I have found having the engine running can make a difference, even the iPad in the cockpit can make the compass deviate. A very useful bit of knowledge

I would have thought it a perfectly reasonable thing to say if the the ailerons lack authority. I can tell you from experience that a standard CH601HD lacks aileron authority especially at low speeds. VGs and higher ratio bellcranks have improved mine, but I'd like them to be as half as effective again. If I could make it have the same roll rate as an RV6 I'd be happy with that. That is the main time I would really appreciate better aileron authority.

Someone who must like aeroplanes very much has built a house right at the end so he can see them close up when landing on 20. I've never seen drones there. When I saw your post, I initially thought it was someone with real flying footage. The QANTAS Academy fly around there a lot in Diamond Stars, but I haven't seen one land there yet. I just hear them on the radio a lot around Pittsworth, Millmerran and Stanthorpe.

Nothing organised. I occasionally see other aviators flying from there. Of note, in the video screenshot there is now a house in that empty paddock at the NE end of the runway. The airfield is maintained. It is currently busy enough for a drone pilot to be a hazard too. I hope that doesn’t happen any more. PM me if you want more information.

I guess the point I’m trying to make is that if you’re the sort of person that is unnecessarily inconsiderate, whether it’s blocking the isle at the shops, clogging the highway or the circuit, then you have my utter hatred. I just don’t understand why they do it. Some of them seem to delight in it then get shirty when others have a go at them. If there is a hell, it’s full of caravaners and single lane roads.

The difference is that when in the Drifter, you demonstrate some common courtesy and let faster aircraft go ahead if there’s any chance of conflict. Generally you Make effort to Not to inconvenience others, and that is the point being made.. We get them too. Yes they can be frustrating, but they have a job to do, unlike Bob and Janice ( it says so on the back of the van) who are utterly ignorant of everyone around them. The big difference is that mostly caravaners could make the effort but don’t.

I do understand this. My issue is not so much the speed or lack of, but the the refusal to acknowledge what is viewed in their giant strapon Supercheap towing mirrors. I feel nothing but rage when stuck behind "Bob an Janice" at 75 kph as they point out the sights totally ignoring the 30 vehicles stuck behind them for many kilometres while the drive past every opportunity to pull over for a moment and let the rest of the world get on with earning a living. Make that a 800-1000 km leg and see how much of your life this vehicular cholesterol steals from you. Also it's never only 5% of the time often 25-50% around here, some roads have very limited overtaking, but plenty of places to move over or stop. It's criminal, but QLD cops, from all appearances are only interested in speed enforcement. You can drive like an utter f*ckwit as long as you don't speed and they won't look twice.

That's what caravaners do here. I agree that those towing horse floats are worse, but we have less of them and they are usually just local traffic here, not clogging the main roads in packs. Which one? OK's fascination with a certain number or caravaners being c**ts?

The fact that most of them are parked up by 5pm for the night is one of the few comforts for interstate truckies.