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Posts posted by old man emu
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I don't think advertisers like the concept of their names being associated with lawn darts. Bad for their image.
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Jaycar have these:
https://www.jaycar.com.au/marine-switch-panel-with-circuit-breakers/p/SZ1903
There should be a store near you
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Getting all sorts of aircraft from here to there in Britain in WWll
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Thanks, but the trailer I want to build is to transport the bike if needed. SWMBO reckons that a trailer needs to be on hand every time I go for a ride in case it needs assistance to get back home. This is what it should look like before the mudguards and light bar go on. You can see that there is a number of linch pins. These allow the trailer to be pulled down into a smaller volume for storage.
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I wonder if our politicians give a thought to those who have returned injured mentally or physically when they piously intone
"They shall not grow old
As we who are left grow old.
Age shall not weary them,
Nor the years condemn."
Politicians are full of patriotic fervor when they are urging the population to take up arms, but are noticeably silent when the broken members of the population are carried home to bear the slings and arrows of outrageous Fortune for the rest of their shortened lives.
There are no more WWl survivors, fewer WWll survivors, lots of Korean and Vietnam vets, and now our Iraq and Afghanistan returned service people. And still the uncaring Government makes these often willing volunteers jump though hoops in attempts to get the rehabilitation services they need. "A place fit for heroes"? Not bloody likely.
Next time our gungho politicians decide that they are going to send members of the population overseas to fight other peoples' battles, we should flood their email and letter boxes with pictures of a military rifle with the message, "I'm right behind you as soon as you pick up your gun to lead the charge!"
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Flyable is a relative term. Barely flyable Bleriot.
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I just want a park flyer trainer at this stage. Remember, emus don't usually fly.
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check out Depron (foam) for model making
Apparently, from posts in RCGroups, the good Depron that was used in the past is no longer made. Any Depron now is a much softer product, not very suitable for making aircraft, especially a trainer. I'm going to ask some local real estate agents if they have any old corflute For Sale signs. Bunnings have corflute sheets at $6 for a 900 x 600 sheet, but I'm a tightwad and prefer to go on the scrounge.
As for my other lockdown projects, I've finished the office saddle seat for the daughter; washed and detailed the wife's car; laid a brick edge for a garden bed; de-rusted and repacked the bearings in a couple of wheel hub assemblies and am halfway an annual maintenance inspection of the lawn mower. With the lockdown, it will take a month of Sundays to get my collected drink containers cashed in, but I need to do it soon so I can start on my motorcycle trailer.
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What started out as Tips 'n' Tricks for the Workshop has become Helpful Hints for the Housewife.
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CASA haven't given extensions to MRs, only medicals, AFRs and some other compliance stuff that doesn't apply to our small, simple aircraft
To CASA, the lower end of GA is as popular as a red-headed, freckle-faced bastard at a Father's Day picnic.
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Does anyone else have to do that every time? For some reason, I do..........
Identifying the correct control comes from practice. Try doing more cooking - if the missus will let you near the stove.
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I've tried to make sense of some gobbledygook, from CASA and I think that this lets you solve your problem:
CASA EX65/20 — Extension of Airworthiness Review Certificate (COVID-19) Exemption 2020
I think that all you have to do is go to the organisation which has been issuing your ARC and have them complete this form:
https://www.casa.gov.au/sites/default/files/_assets/main/manuals/regulate/misc/form502.pdf
I know that many small organisations which have been handling the same aircraft for years on end have built up confidence in the abilities of a owner/operator to service his"baby" on the organisation's premises. I can't see the same organisation charging more than mates' rates for the issue of a continuation, especially if it's just to ferry the aircraft less than 50 kilometres.
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It's a shame they haven't issued COVID-19 exemptions for aircraft annuals like they did for medicals and AFRs.
It definitely looks like the left hand of CASA doesn't know what the right hand is doing when it comes to exemptions based on practicality. It's 38 Kms from Jandakot to Serpentine as the crow flies, a bit longer if you run out to the coast. What would be the outcome of a risk analysis in this case?
I bet that your Tri-Pacer hasn't done 100 hours since its last M/R was issued. Is the M/R time expired?
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Tried to buy some engine mounts for my homebuilt trike from Flexible Drive long time ago. When I mentioned what they were for they refused point blank to sell them to me.
My former son-in-law's is in the same business as Flexible Drive, making control cables for vehicles and machinery. I once asked him if he would make control cables for a homebuilt aircraft and he refused on liability grounds.
My advice is to contact AirAg Airag Aviation – Bankstown Aircraft Maintenance and talk to them. They have approval to make control cables and use certified cable and hardware. Don't baulk at the cost because its; your neck in the noose.
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I think you mean ATSB not NTSB
Yep. ATSB. Hard to think of the correct initialism with grandkid's cartoons booming from the TV in the next room.
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If there is a death in NSW due to the operation of a VH- registered aircraft, the NTSB will carry out its investigation, using its specialist skills. It's report is provided to the Coroner, under subpoena, to form part of the Inquest material. In the case of RAAus operations, the NTSB usually hands the technical investigation over to the RAAus. In all cases the preparation of the Brief required by the Coroner is the responsibility of the poor copper who was the initial responder. It used to be that the poor Plod had no experience with aircraft, so was working in the dark. I believe that procedures have been developed in the past few years to handle these incidents.
The Coroner's tasks in dealing with the types of deaths within its purview are to:
- Confirm the identity of the deceased.
- Determine the time, date and place of death.
- If possible, determine the cause of death.
- Determine if any other person or persons were responsible for the death.
The Coroner may make recommendations for changes that might eliminate or reduce factors that appear to have lead to the death, but the Coroner CANNOT direct that changes be made.
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- Confirm the identity of the deceased.
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it does contain the fallacy that new parts are reliable until age weakens them
Quite so, but one has to start from somewhere. My workings failed to take into account the variable {age}, but further refinement of the variables would make the calculated results more reliable.
I suppose we have all experienced something breaking the first time we used it, and at the same time we might possess something that has worked flawlessly since Pontius was a pilot.
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I'd say the original comment by OneTrack was relevant as an aside in the discussion.That's about all they were in that context.
I used "aside" with the meaning something that departs from the main subject. Someone mentioned burn injuries. OneTrack commented on a way of assessing the degree of injury. Was he correct in the facts of his statement or not? I don't know.
Their vigorous defence of the good name of the pilot, and hopes for the recovery of the passenger show real comradeship.I don't know how I could be much fairer to BLA82 and FlyBoy1960 than that.
As for the public nature of Inquest materials, if you have the money you can get the whole transcript and Brief.
http://www.coroners.justice.nsw.gov.au/Documents/Form24-Application%20for%20Access%20to%20Coronial%20Documents.pdf
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When building things, one comes across little tips and tricks form others who have discovered things that make completing a task easier. They are things that have application in many areas, but few people take the time nowadays to publish them. Back in the day, magazines like Popular Mechanics had pages and pages of these tips'n'tricks. So here's a chance to let others know what you've found to be useful and time saving.
1. CONTAINERS FOR MIXING EPOXY CEMENT.
Next time you are getting some sushi, keep your eye out amongst the free chopsticks and soy sauce fishies for little metal trays. You are supposed to put your dipping sauce into them for the sushi. These little metal trays make handy containers for mixing small amounts of epoxy glue, or for any small quantity of material, such as a bit of tough-up paint.
2. PAINT STRIPPER IN A SAUCE BOTTLE.
Paint stripper is hard stuff to get out of the container. The lid is usually in the centre of the top and the stripper can only be got out by dipping a brush into the tin. Wash out and empty tomato sauce squeeze bottle, (or buy a picnic sauce bottle from a $2 shop). Upturn the open tin of stripper into a funnel in the neck of the sauce bottle and let the stripper drain into the bottle. When most of the stripper has drained out of the tin take the top of the tin off with a can-opener and let the rest of the stripper drain out. MAKE SURE that the squeeze bottle is clearly marked with the name of the product inside, and a danger warning.
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Please tell me how stating the survivability % of a burns victim who is still undergoing treatment is justified or relevant?????
I'd say the original comment by OneTrack was relevant as an aside in the discussion. That's about all they were in that context.
Let me say, that having just gone through this whole thread, I suspect that BLA82 and FlyBoy1960 are acquaintances of the survivor, and probably the pilot. Both these members are obviously grieving the loss and injury and are at the same time giving some support to the families. Their vigorous defence of the good name of the pilot, and hopes for the recovery of the passenger show real comradeship. Perhaps the vigour of the defence lead to the short, sharp comment the tone of which was complained of.
This incident has been fodder to the armchair analysts, as every other reported incident seems to be. The sorry thing is that as much as we pour out our thoughts around the time of an incident, there never seems to be reference to final reports which are where we learn if a mistake caused the incident.
At Post #32, The Administrator called for this topic to close down, but it wasn't. Perhaps from now on we could restrict posting in this thread to reports on the condition of the survivor, and in due course, reference to the report of the investigation into the incident. Once the Coronal Inquest has been commenced, all the evidence comes into the public domain.
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Everything will fail at some time after it has been made. Even God's products fail.
The way I read Geoff's post is that you accept that a man-made object will fail sometime. You then determine the probability of each component of the whole object failing.
Let's say we have three components on an assembly, sat the assembly is a shaft on which there is a bearing, a gear and a split pin which holds the gear in position on the shaft. Let's say that the bearing is likely to fail after 1000 hours; the gear after 10,000 hours and the split pin after 500 hours.
The probabilities of failure are: bearing 1/1000 (0.001); gear 1/10,000 (0.0001), and the split pin 1/500 (0.002). It's clear that the condition of the split pin should be checked every 500 hours (or maybe every 100 hours to err on the side of caution); the bearing every 1000 hours, and you'd probably never check the gear during the assembly's service life.
But what are the chances of all three objects failing at the same time? The probability of failure of one of the objects is independent of the other two objects (Although the failure of the split pin could lead to the subsequent failure of the gear). What's the probability of all three components failing at the same instant? Multiply the individual probabilities of the three events together to obtain the combined probability.
0.001 x 0.0001 x 0.002 = 0.0000000002
= 2x10^-10
However, what is the probability that the split pin will fail, causing the gear to slip and then the bearing to fail?
There is only one way that this sequence can happen. Since there are three items the probability that the split pins goes first is 1/3. That leaves two things to fail - the gear and the bearing. The probability that the gear goes before the bearing is therefore 1/2. Finally, the probability that the bearing will go last is 1 because there is no other thing to go. Multiply the individual probabilities of the three events together to obtain the combined probability.
0.33 x 0.5 x 1 = 0.165
So the probability of the three components failing at the same time in that order is
(0.33 x 0.002) x (0.0001 x 0.5) x (1 x 0.002) = 6.6 x 10^-11
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CHAT ROOM USAGE
Lots of people are sticking their heads in the chat room and finding it empty. The probable cause is that nobody is making arrangements to meet up there. If you were going to your Local to have a chat with mates, you would let them know what time you were going to be there. Same would work here.
I suggest that if you want to talk to a member that you PM them and tell them what time you will be going to the chat room. Another way would be to establish a thread where a member could post the time that they were going to go to the chat room. I reckon that after a week or so, people would pick up the pattern of when others were using the chat room, so that it would become as it is at your Local where you expect to see certain people at certain times.
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At least I can go to Kellets and speak to someone who can give me advice on what I need in the way of a motor and ESC. I'll have to chase a plan for a corflute model.
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Tips 'n' Tricks
in Aircraft Building and Design Discussion
Posted
Jabiru owners suck!