AVOCET

DRUIDVALE in the flinders rangesWilpena pound top left

We've been thinking-about-cabins

 

For holiday fly ins , walking distance to camp ,

 

Not many facilities , but for those who want piece and quiet .

 

Lots of air traffic fly through the flinders ranges on there cross country epics .

 

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Pm for details

Mike .

Typical, no ones gives a toss about South Australia.

1993 ide just pick up a new XR6 from ford , and driving it home for the first time , i naturally floored it to see what the note of exhaust sounded like , next thing , flashing blue lights , pulled over , i sat there silent and sweating , and the officer piped up and said ; no worries , just wanted a closer look at those new headlights !

Mike .

Forget about resonance freq.

Would it be simpler to weigh the tank , measure the deflection , like the ones used on the "jab fuselage" when doing

strain calculations ( or whats it called)

thats hooked to a computer ?

Ue

Not publicly maybe, but surely he'd not be that silly to not keep in touch in the background. Shhh!

Don't worry rod ,

Plane driver , yea thats the first one taken over Temora 2011 nat fly , you can see the different turret .

The sport pilot mag took the photo for front cover , but was not used due to my lack of advert $$

I have never heard of a jabiru fatality other then a CFIT acident many years agoJabiru powered planes would be hard to work out

 

Definitely there has Been one in USA that I know about

At south port air strip ,again CFIT.

I

AVOCETI have no doubt he is not on here it was just a polite way of getting it out there without bashing the brand

 

It was a plea that many others on here would also like to see happen

 

I don't want to see this brand go down the gurgler over some litigation

 

The airframe is brilliant the thing that attempts to power it is just plain rubbish

 

If your modern day car got 40000 Kms and dropped valves and broke bolts and needed new rings it would be an uproar but the faithful here keep denying the fact that the majority of these engines are crap and unreliable

And as far as cars go , or don't , I drive Å land-rover .

OkI am convinced that Jabiru make the best aircraft for survivability

Now Rod you have proven this with the amount of test pilots surviving forced landings now do the aviation community a favour and piss that **** engine off and put something decent and reliable in them and make your company the best aircraft manufacturer in the world

Well I'd be tee'd off looks like he has a 'fair way' to walk and he has a 'hole in one' wing.But on a serious note good to see him walk away and no one else hurt, I wonder sometimes at the usefulness of a flip out air whistle or the likes to warn people on the ground of the quiet approach of an engine out landing. I've got a siren which works if I still have battery power but a flip out whistle would do the job.

It would be good for hunting roos away to blazes from the strip before landing too.

Well I'd be tee'd off looks like he has a 'fair way' to walk and he has a 'hole in one' wing.But on a serious note good to see him walk away and no one else hurt, I wonder sometimes at the usefulness of a flip out air whistle or the likes to warn people on the ground of the quiet approach of an engine out landing. I've got a siren which works if I still have battery power but a flip out whistle would do the job.

DRUIDVALE in the flinders ranges

Wilpena pound top left

We've been thinking-about-cabins

For holiday fly ins , walking distance to camp ,

Not many facilities , but for those who want piece and quiet .

Lots of air traffic fly through the flinders ranges on there cross country epics .

So tell me ....I'm not getting any of Mr Lewellyns (Oscar ?) dribble because he's on my ignore list. Am I missing anything ??.

E

Dafydd's post # 1 is spot on. 

 

In addition, I believe that talk penetrations for a gauge should be avoided where possible and on my 230 I used a Dynon fuel flow gauge. That and once you get used to the sight glasses in the cockpit, plus maintained a liberal safety margin of fuel remaining, worked well for me.

 

 

 

But that is only meaningful if the tanks are filled, the aircraft must be on level ground and it must then be flown coordinated.

 

 

 

The cross-feed between the J wing tanks means that any slope and full tanks is a waste of money and you can pump half a tank out of the breather if flying uncoordinated immediately after take-off with full tanks.

 

 

 

But, in my view and experience, an accurate fuel flow gauge is way preferable to having an additional hole in each tank for a float of other type of level sensor, which are suss anyway in long shallow wing tanks.

 

 

 

Regards Geoff

Sounds like what happens in the bedroom ?

How big is the header tank on a Jabiru? Is it full when in motion? Would that Belite gadget tell you the level is falling? I have a flag on a float in my header tank, right in front of my nose. ( it wobbles constantly so no chance of sticking) Downside? I have a lap full of petrol if the tanks bursts on a turn-over................. oh well there's always a catch.....

Q. How do you seal the tank in the cockpit ? Seems to me that if fuel comes out on roll over , how the hell did you get past the inspection ?

Just asking .

Mike .

I think his cousin has a book shop :

FU- kin - books

I've been discussing this at home and what if ; a strain type of sensor were placed at the bottom of the tank ( out side) that measured the deflection of the tank and could be calibrated to read the weight of the fuel ?

Any thoughts ?

I would imagine there could be a small section of the tank that deflected slightly . Would work in 1 g ok , would need an accelerometer to adjust for

Turbulence ect .

These days you can get sensors for just about any thing .

There's another problem with the belite fuel sensor. It works on the pressure (or weight) of fuel, which varies depending on fuel type. If you always use mogas or avgas, then no worries, but if you swap between the two depending on availability, then you'll never be sure. I guess in that case you could calibrate with the heavier fuel then the lighter fuel will under-read - ie there will be more fuel than indicated which has to be better than the alternative...Hmmm... Here's a thought. You know if you blow across the top of a bottle, then the sound changes depending on how much fluid is in it. Likewise if you tap a glass. The resonant frequency of the container changes with the volume of the contents. So, if you set up a sensor to measure the resonant frequency of a rigid tank (wouldn't work on bladders), that should give you a measurement that is independent of both the fuel type and tank shape, and it should be independent of contaminants too. Just like the Belite pressure sensor, the instantaneous reading would vary wildly, but filtered with a time constant of something like a minute, it should read very well. I wonder??

I was thinking sonar , which is sound ,

With today's sensor hardware ,

,software, that could be worth a look . ?

You could have the filer cap inboard and let the tire down every time you filled or dipped !

There's been a few planes park themselves on the beach there !

Thanks. I'll have to get myself one of those.

T

If I don't turn the fuel off before shutdown the temp fluctuations of a day night day can cause the fuel in the header tank push out the breather onto the wing, turn the fuel off after landing and run it down a smidge and no troubles at all

It

Funny how you see smokers in bombs and wonder what they could afford to be driving if they didn't smoke......

Seems to me if the filler cap was closer to the wing root at the deepest part of the tank it would be a lot easier to dip. I have a calibrated stick I dip with, but have found if I can't see fuel visually in both tanks there isn't enough, I think it holds a fair amount of fuel before you see it.

air pockets

FT the webpage says that the fuel tank can be from 6" to 48" in depth.......Jab wing chord isn't 6 inches let alone the fuel tank depth so no banana for a Jab fit, unless they have other units that will workAndy

I don't think it would be that hard for jabiru to work it out . Unless 6" is the absolute min thickness the probe will work .

A lot of places where people fly don't have mobile access or wifi , specially sa