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old man emu

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Posts posted by old man emu

  1. pylon500,

     

    I disagree with your interpretation of the impact trail as you have depicted it. The short line crossing the animal track would, I think, be something unrelated to the impact. It appears to me that the aircraft impacted the ground close to where those two lines intersect, but was travelling away from that point at an approximate angle of 30 - 45 degrees. It would be necessary to know if the surface sloped from left to right of the photograph. I would surmise that the ground speed at impact was low, given the short post-impact run. Also I suggest that the aircraft was moving generally horizontally to the surface at impact, ie not spinning in.

     

    Perhaps the aircraft was landing under the control of the pilot, but hit the high side of the trackway and flipped over. A possibly successful force landing ruined by invisible terrain features.

     

    OME

     

     

    • Agree 1
  2. The Minister for Defence announced the provision of funding for the training of 40 pilots in both Sydney and Melbourne as well as loaning aircraft and spares in the first two years of the plan's operation. Thereafter, there will be an annual grant for each pilot trained. The funding will be provided to approved aero clubs in each city.

     

    CIVIL AVIATION - GOVERNMENT WILL HELP HOWSE'S STATEMENT EQUIPMENT AND MONEY MELBOURNE, Thursday. - The Sun (Sydney, NSW : 1910 - 1954) - 19 Nov 1925

     

    I suppose that was great news when the announcement was made - way back in 1925!

     

     

  3. I cant give an exact BMI, but I am about 152 cm tall and fifty something kilos (on a good day).

    152 and 50 kg = BMI 21.6, which is OK

     

    152 and 40 kg = BMI 17.3 which is underweight.

     

    But these raw BMI figures are not differentiated for gender. Most BMI calculators do not differentiate between gender or age and these two factors have a great effect on the usefulness of BMI.

     

    Just a word of warning. Check the minimum weight for solo operation of your aircraft. I recently saw a placard in an aircraft stating the the minimum weight of a solo pilot was not less than 50 kg.

     

    OME

     

     

  4. The big hazard in the use of BMI by authorities requiring medical reports is that these authorities haven't read the fine print, or understand that the formula produces a "line of best fit" when graphing population data gathered from only two measurable quantities - weight and height. So they blithely put the measured values into the formula; turn the handle and out pops a value which categorises the individual. Then this BMI value is further misused to predict an individual's potential health.

     

    Currently, high BMI values are held to predispose a person to sleep apnoea, which in turn leads to drowsiness during the day. So the authorities demand extensive medical examinations before they authorise the renewal of a licence. So the individual is penalised because of a judgement call made by an "authority".

     

    And for Deskpilot - wouldn't like to know for sure, rather than hope, that your Thruster will pick you up every time?

     

    OME

     

     

    • Agree 1
  5. Here's an article from a medical journal which tells us the origin of the BMI and points out that the current formula to calculate BMI is flawed, something intimated by the man who developed it way back in 1830.

     

    BMI: is the body mass index formula flawed?

     

    The same site published a report from a 2012 conference on obesity that in which it is proposed that the waist to height ratio is a better predictor of health risk than the BMI. It says that for an optimal situation, the waist measurement should be less than (Height x 1/2). That means a six-footer (180cm) should have a waist measurement of just under 36" (90 cm).

     

    Waist To Height Ratio Better Than BMI

     

    I suppose that the upshot of this for recreational fliers (and passengers) is that we have to try to get ourselves into shorter trouser belts.

     

    OME

     

     

    • Informative 1
  6. We are being mugs and deluding ourselves if we continue to think that weights that make the BMI calculation exceed 25 are OK.

     

    Department of Health | About Overweight and Obesity

     

    However, I think that the accepted BMI values for normal weight need looking into. For example, I am 178 cms tall. The "Normal" BMI range is 18.5 to 24.9. For me, this is a weight range of 58.5 kg (9stone 3 lbs) to 79 kg (12 stone 6 lbs). At 80 kgs, I look like a pull through for a .22 rifle.

     

    Some body weight authorities suggest that waist size is a better guide to suitable weight. At the moment, I'm a 112 cm waist and weigh about 115 kg. If I got my belt size down to 90 cms, I should be looking at a weight of 90 kgs, but my calculated BMI would be 28.4 which is the upper end of the overweight range.

     

    I like to think that for every 0.75 kg of me I shed, I can pour in one more litre into the fuel tank.

     

    OME

     

     

    • Like 1
  7. Coincidence ....

     

    About the same time as this happened at Bankstown, I was at Camden and watched two L39s overfly the circuit in close formation; break off and land. The operator was running a corporate fun day, giving people jet rides.

     

    My 4 y-o grandson thought they were pretty great, but liked being lifted up into a Tiger Moth, Tomahawk, Pietenpol and Chipmonk a lot more. Wish I could get his Dad's OK for him to get a short flight.

     

    OME

     

     

  8. Unless the good Sergeant was piloting aware herself (and I assume "Jo" is an abbreviated female cognomen), it appears she was reading from the statement the plot gave her. Still, that still does not detract from the good work done by the reporter in preparing the story.

     

    It seem that reporters outside the metropolitan areas take more care to produce factual news than those in the cities. I wonder if it is because the locals would actually know the reported and be in a position to praise or damn a story on the local pub.

     

    OME

     

     

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