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Jabiru7252

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Posts posted by Jabiru7252

  1.  laser headlights consist of one or more solid state laser diodes mounted inside the headlight. These blue lasers are fired at a yellow phosphor, similar to that used in white LEDs. This produces a powerful, vibrant white light that can then be bounced off reflectors and out of the headlights towards the road. Laser headlights built in this way have several benefits. They’re more energy efficient than LEDs that put out the same amount of light, while also being more space efficient, too.

     

    Just in case you (like me) had never even heard of laser headlights. Sorry about the weird text formatting, not my fault...

  2. On 11/03/2024 at 3:33 PM, skippydiesel said:

    I have long pondered this matter😎 - Seems to me that you malign the brain and its involvement in procreation. 

     

    Sure the male brain would seemingly be driven, by an unreasoned ( much like the male praying mantis) urge to have its body, join with almost any willing female. Males seem to spend a lot of time displaying their fitness, as a potential mate. So much so it can seem they have lost the focus of their activity. In humans this can be displays of risk taking (a significant contributor to higher (than female) mortality rate, muscular prowess, fighting  peers, verbal bravado, etc - for the bulk of which, the brain would seem to be almost absent (as a reasoning organ). Typically males will lose weight, sustain various levels of injury (to the point of death) and in some cases be so exhausted by the effort, that the female looks elsewhere.😜

     

    The female brain??? - now that seems to me to be a far more involved/calculating organ.  The female brain is very much more present (than the male) when it comes to procreating. I would suggest that it is she who is chooser of an acceptable mate. The instigator of whatever preamble constitutes courtship. The decider to mate or not (sometimes seemingly on a whim). In certain species, it is she who decides that this is a long term bonding or a meare dalliance. In all of this, the female deludes the male, into thinking it is he, that is the leader/instigator/powerful individual. Romance ????? an artifact of (female) society.🤣

    This link provides an insight to the male and female brain...

     

     

     

    • Haha 2
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  3. 2 hours ago, skippydiesel said:

    Overrated!

     

    The hyman eye is not adapted to seeing other flying objects in the sky.  That's why communication giving distance from a known point, altitude and direction of travel is so important - it gives the listener (pilot) a clue where to look, greatly assisting our poor eyesight.

     

    Aircraft lights work well in low light or against a dark sky but are otherwise almost invisible - for the VFR pilot, great fun but that's about the start/end of it. .

     

    Ground observers catch sight of an aircraft much better than when airborne.  For a start they can confine their optical serch to above the horizon, then there is the noise of the aircraft engine/prop giving a general direction in which to look,  if it's in the circuit, the search can be further narrowed.

     

    A VFR aircraft on the ground, may benefit from taxi lights, informing both ground and airborne observers, that the aircraft is or about to move. 

    I'm convinced that many planes, gliders included, go into stealth mode when viewed from above. On many occasions I have tried to sight a plane that's maybe a few hundred feet below me at (say) my 3 o'clock but been absolutely unable to find it. This occurs almost exclusively over the suburbs but has also happened over dry paddocks. Another sign of old age perhaps?

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  4. On 29/02/2024 at 3:41 PM, cscotthendry said:

    From what I've heard, the side door on a low wing is a double edged sword. Apparently, if the door pops open in flight it disturbs the airflow over the wing and can be a hazard at low (near stall) air speeds.

    That is for doors that open forward. I don't know about gull wing doors. But with gull wing doors, you're back to being trapped in a flip over.

    Not so, the door cannot open enough to cause any problems because of the slip stream. I flew to Tumby Bay from Parafield with the door open in a PA28.

    • Like 1
  5. On 03/07/2023 at 12:23 PM, onetrack said:

    Disconnecting an alternator from the battery while the alternator is producing current will cause serious damage to it, at the very least blown diodes, a damaged regulator, perhaps totally fried windings.

    Alternators produce high voltage AC current initially, which is converted to DC current by the regulator. A sudden disconnect of the charging circuit can see that AC current spike to unacceptably high levels, and cause damage to the alternator.

    Of course, a damaged alternator that needs to be replaced is a small price to pay to avoid a cabin or fuselage fire!

     Gee whizz, I must be silly. I thought the diodes converted the AC voltage to DC (rectification). The regulator then 'regulated' the voltage and/or current to charge the battery. The term "high voltage AC current" is meaningless to me. The alternator generates an 'alternating voltage' that when applied across a load will cause an 'alternating current' (AC) to flow. Maybe in this world of LGBT rubbish the electronic theory I was taught has been 'cancelled'.

    • Haha 1
  6. Back in the late 70s industry said 'give us a plane we can spin and stall' for flying training. Piper came up with the Tomahawk and Beechcraft with the Skipper. These planes are hard to tell apart. I did stalls, spins and spiral dives in the Tomahawk and one day I read that a Tomahawk lost its tail during a spin and so no more spinning the things. I have never really liked 'T' tails - they always look flimsy to me.

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  7. 2 hours ago, spacesailor said:

    Half way , but stopped for " short wave listening " ' CQ ' as far as Quito South America .

    spacesailor

    PS:  NZ changed the rules. So you had to do ' years on a specified frequency '. 

     

    I must have suffered a brain bubble because I can't make sense of your post. Can you 'expand it' for me? And type slowly because I'm a slow reader...😄

  8. 2 hours ago, facthunter said:

    How did you identify the Nav Aids?    Nev

    The morse sent from the navaids was so slow you didn't need to know the code. A good pilot would simply have a cheat sheet, listen to the code (da da     da di di dit     dah di dah dah -  that's MBY). I learnt morse to get my Ham Radio Licence and never used morse since. Note how morse is 'spoken' Dits and Dahs not dots and dashes.

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  9. 5 hours ago, RFguy said:

    I have already made my conclusion. And it is harsh !

     

    Pilot became unconscious. Passengers were not sufficiently briefed on activating the CAPS system (shutdown engine, activate CAPS).

    Should have been with so many souls on board.

    It is a terrible ending to a what should have been survivable situation.

    Pilot only accumulated 800 hours in 38 years which for me is a question mark.

    For whatever reason he failed to provide duty of care to that family through his own errors.

     

    I have only accumulated about 800 hours in 40 years. House to pay off, UNI/TAFE fees to pay off, and whores must have their trinkets. Oh, and owning a plane and hangar.

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  10. 3 hours ago, facthunter said:

      Perhaps if we taught LOW flying we would be more aware of the risks. In fact it's not PERHAPS. it's neglectful of your responsibilities and I've always  thought and Said so. NEVER got anywhere. It was done in VH and I'm qualified to instruct  it there so what's the difference? When you take off, do an approach or a go around you must do LOW flying. as well as surveying a precautionary landing.  Nev

    I was taught low flying, two things were made very clear, turns during low flying can make it appear you a skidding if there is wind and check and recheck for power lines and rising ground.

    • Like 4
  11. On 29/11/2023 at 8:57 PM, kgwilson said:

    I lived in London from 1973 to 75 a city of around 8 million people at the time. Most people didn't own a car. There was no need. There was a tube station or several in every suburb and in peak times there was a bus every couple of minutes. In Australia we have become addicted to cars and have failed to build decent public transport and continue to build more and more motorways while everyone buys more cars. Sydney is an absolute nightmare to get anywhere. Now the newly opened Rozelle tunnel complex to connect everywhere with everywhere else is a total initial disaster. It will eventually work but won't resolve the problem as more and more cars clog the streets until our addiction to private transport changes. That won't happen any time soon. certainly not in my lifetime.

    Yes, I was in London in 1980 and the transport systems were great. I was also young and fit enough for fight or flight in the event of some asshole wanting to rob or bash me. These days with the nutters and druggies and other garbage out there I just wouldn't feel safe.

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  12. 4 hours ago, facthunter said:

    IF they are all like that no wonder there are issues. Gina reckons about $4 a day is enough for a worker. She's worth $36 billion. Her Father, Lang Hancock, didn't think SHE was worth MUCH at all. but what would he know? . Nev

    Where and when did Gina say $4 a day is enough for a worker? 

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