old man emu

Perch: measure of land equal to a square lineal perch" (usually 160 to the acre), late 14c., earlier "land-measuring rod" (c. 1300), from Old French perche "unit of linear measurement" (5.5 yards), also "measuring rod, pole, bar" used to measure this length (13c.),

Rod: As a unit of linear measure (5½ yards or 16½ feet, also called perch or pole) attested from late 14c., from the pole used to mark it off. As a measure of land area, "a square perch," from late 14c., the usual measure in brickwork.

Pole is now an equivalent length, but at one time a pole was 10 feet, or 3.3 yards. The ten-foot pole was a common tool used to set stakes for fences. Nowadays fence paneling is 2.4 metres.

It appears that perche came to us from the Norman conquerors, when the conquered were using the term "rod", from  Old English.

1 minute ago, skippydiesel said:

Would have thought that someone would have offered to sell/lend/hire a proper flaring tool.

Skippy,

Open your purse and get Rodney to do it for you. That way you know it is done right the first time. And you have a bit of warranty on the work.

7 hours ago, danny_galaga said:

He didn't have experience in those things. He surrounded himself with people who did.

The Henry Ford School of Business approach.

I can't handle altitude in metres, not tyre pressure in anything but psi. But that's just my two bobs' worth.

1 minute ago, facthunter said:

She knows how to multiply then.  MY wife is an Accountant too,  but I'm not sure how that adds up.. She denies being calculating. Nev.

Comments like that can be divisive.

I'm glad that we use the Metric system in aviation for air pressure. Using hectoPascals for QNH and QNE provides for better accuracy simply by there being more divisions on a hPa scale than on an inch scale.

15 hours ago, kgwilson said:

how many CEOs of top companies around the world began as bean counters.

My daughter is an accountant and CPA. She's worked her way from accounts clerk before she qualified to being a CFO of an Australian registered company which is owned by a German international. She holds an above average military security clearance as her company contracts to the Defence Department. At New Year she was promoted to the Board of the Australian company, and is held in such regard by the Germans for her ability and integrity that it is not impossible to see her as CEO in a few short years.

At the moment she is working on another important production project due for completion by the beginning of December this year. Being an efficient accountant, she has ensured redundancy in the project. OME will be the grandfather of twins!

33 minutes ago, facthunter said:

14.7 lbs / sq inch

Or close enough to one kilogram per square centimetre. 

3 hours ago, onetrack said:

follow the NSW Raffle Regulations

Thanks for looking that up for me. Checked and we are OK to go as the prize pool is below the prescribed value. 

Arthur Butler Aviation Museum Inc has been created to preserve the history of Arthur Butler and the airline that was the rival of that chap's from Hamilton in Victoria. That's why it is conducting an air rally on 20 May next. Profits coming from entrant fees will help fund the initial steps towards the preservation of memorabilia and publication of the history.

For a multitude of reasons, pilots will not be able to attend the event due to distance, unserviceability of aircraft or prior commitments. However, I am thinking of a way these people could support the museum. Several sponsors have provided small aviation-related items to the museums for use as contest prizes. What I am thinking is to run a guessing competition with those items as the prizes. 

I have:

1. A training package provided by PilotTrain https://www.pilottrain.com.au/
2. An aircraft tie-down kit supplied by Aerokits Australia 
3. Instrument panel sunscreen supplied by Swish Projects

I can set up an online form, like the one Angel Flight is using to sell its Art Union tickets, so that people can purchase an entry in the guessing competition and pay for them by bank transfer.

Question is, at $5.00 per ticket (3 for $10) would people enter the guessing competition? Please provide me with some feedback.

Also, would  those who intend to enter the Arthur Butler Trophy event please contact me in the next week at [email protected] to be sent the entry form and information package.

Glad to see Quant RS is diversifying into health insurance. That's got to be a big income source.

2 hours ago, skippydiesel said:

First with ordering the correct imperial parts/joiners,

Ignore the measurement system  These parts are made to a standard. All you have to do is order the part by its designation, whether that be AN nnn-x, or MSnnnnnn, or even NASnnnnnn. 

It seems that the designation of aerospace components has changed again. This chart can help decipher designation codes: https://bandemfg.com/conversion.html 

So a the part called for in your manual is AN827, which changed its name to MS24396 and later, as it might be called for in a design done today, AS1036.

The 3/8" aluminium fuel line can be obtained from https://aeroflowperformance.com/af66-3000-3-8-alloy-hard-line-9-5mm, but Supercheap has it much dearer.

It is a wildly long shot of an idea, but what if people wrote to Sales at BP  and explained that, although they were a small users of avgas on an annual basis, they still are customers. Does BP decline to provide small amounts of fuel at its service stations for the person who needs mower fuel? Do they require a minimum purchase of 20 to 30 litres. When a plane needs refuelling, it needs 50+ litres.

11 minutes ago, KRviator said:

Anyone have an alternative to the AirBP cards for their bowsers that won't accept credit cards and AirBP won't allow you to open an account?

Viva Energy has their own card: https://www.vivaenergy.com.au/business/aviation/aviation-fuel-card

Looks like we lose another aviation-linked small business. In the case of Skyfuel, I would imagine that it is simply due to the owner reaching retirement age and converting his business to retirement funding. You can't blame him for that. I feel for his loyal employees who have enabled fuel to be available around the State, and have kept those firefighting aircraft fuelled up and ready for instant response. Will they have the yard gates locked behind them? I have it on pretty good authority that the Skyfuel depot at Bankstown is heading for shutdown due to the efforts of the airport leaseholder. There goes another of my Bankstown clients.

8 hours ago, skippydiesel said:

At this stage I am hoping to do the whole system in metal (keeping faith with the first builder).

Design decisions are made for considered reasons. Would "rubber" hoses be more or less likely to suffer damage from rubbing or vibration? Is there a fire risk that metal would provide some resistance to?

3 hours ago, skippydiesel said:

never considered Rodney might have the fittings I need

I used to run the aircraft hardware sales business associated with Dent Aviation, now GB Aviation. I was there recently and there is still a good stock of hardware for sale, and probably at prices not seen for 10 years or more. If Rodney is out of stock, ask him to get things in from the wholesaler EDMO.

7 hours ago, skippydiesel said:

Still listed as AN in the AAE Catalogue,

Yes, a lot of sellers keep using the AN designations because old habits die hard. It's not wrong. The items are exactly the same, and made to the same specifications.

Definitely be careful of the flaring tool as mentioned. The flare angles are different from automotive fittings. This is a diagram of Spec MS33584

24 minutes ago, facthunter said:

NOBODY here HAS condemned her,

No openly, but did my twisted mind see some antagonism to promotion from within, coupled with years of associating with a type?

I was going to go into the effect of the pressure the liquid exerts on the wall of the container due to  the weight of the liquid itself, and how that pressure interacts with the atmospheric pressure from the outside. But then you'd have to take into account the resistance of the material of the container itself to deformation. 

Who started this journey down a rabbit hole?

Skippy,

AN is the old designation for what is now MS in the above material. Same dog, different collar. If you don't want Rodney to do it immediately, I'm sure he would get a  round tuit for you.

Ms Hudson might have been the Chief Financial Officer and hence tarred with the accountant's brush (or should that be pencil), but we don't know what battles she has fought against the leprechaun.  Do we really know in whose mind the idea of slash and burn arose from? That she has been with the company for 15 years means that the Board has been standing behind her in some of these battles. Let's not condemn her before she has the chance to act. Remember that a CEO is not the owner of a company, but a conduit through which the workings of the company is poured onto the boardroom table.

Skippy,

Are the dimensions used in your plans metric or imperial. If they are imperial, then you will be using MS parts.

Why not go down to GB Aviation at Camden ( used to be Dent Aviation) and ask Rodney to flare your tubing for you. Or got to Delta and ask Derek to do it. 

This is an extreme version

53 minutes ago, onetrack said:

It's not a good idea to overfill petrol containers beyond their stated capacity, as some airspace is needed to counter fuel expansion and contraction with major ambient temperature changes.

Skippy, Onetrack is talking about vapour pressure the pressure of the vapor resulting from evaporation of a liquid (or solid) above a sample of the liquid. What KGWilson  indicates is that the greater the space above the surface ofthe liquid, the more that can evaporate from the liquid and squeeze between the usual molecules making up fresh air. So, it you restrict that free-air volume, you will restrict the degree of vapour pressure heating will allow.

This video is not quite an example of vapour pressure, but sort of explains it.

It's probably trifling, but isn't it important to know how much fuel you actually put into a tank, especially if you are not going "full tanks". Four litres is only a tad under 3 kgs, by every gram counts.

By the way, if you need to refuel at The Event, I will have a ladder, earthing straps, grounding rod and a Mister Funnel available. You supply the grunt to lift the fuel container.

2 hours ago, skippydiesel said:

The black line showing the western ridge is good but the catchment also includes The Oak township to the east (off photo) and all its new developments going south, likely to be exacerbating storm run of concern's.

That was just to show where residences and hangars would go. Werriberri Creek has a very large catchment area upstream from the airfield, and the whole area is subject to intense summer thunderstorms from the southwest and Tasman Lows from the southeast. 

Werriberri Creek, whose valley floor The Oaks strip occupies, drains a vast area, making where the strip is located susceptible to flooding. I don't know how it faired in 2022 when the rest of the Nepean/Hawkesbury system was swamped, but there is great potential for flooding that would prohibit the erection of any buildings.

I have had a quick chat to the bloke who said he was the developer. It seems that idea is to make it an airpark with dwellings built on the high ground on the western side of the strip and to have hangars built downhill, closer to the strip. That's is very similar to the development that has taken place along Sydney's waterways. This image shows the ridge line to the west of the strip.