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old man emu

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Posts posted by old man emu

  1. Ian,

     

    Your first paragraph explains why these stories can't be accessed. The explanation reduces my frustration, but now there's the problem stated in the second paragraph.

     

    As I see it, the news section as is now should be deleted as it's an annoyance not linking to stories. The sources are usually OK, but the search bot seems to latch on to anything with the word 'aerpolane' in it. That catches a lot of irrelevant stuff.

     

    Not being an IT guru, I can't suggest solutions. Sorry.

     

    OME

     

     

  2. How do you get the required bearing area from the soil density OME? rgmwa

    I thought that it would be an easy calculation, based on the compressibility of soil and the force each wheel exerts on the ground. Unfortunately I could not get any typical values for soil compressibility, so without data, the calculation can't be done. I was wrong to suggest soil density had anything to do with it.

     

    I suppose another way to do it would be to work out the area of the tyre's footprint. To do this, jack up a wheel and paint the tread for about a quarter of the circumference with anything that will act like ink, possibly engine oil. Then place a sheet of white paper on the ground under the wheel and lower the wheel onto the paper. Lift the wheel off and retrieve the outline of the tyre's footprint. The footprint should be somewhat oval in shape. For practical purposes, draw a tight fitting rectangle around the footprint and using the measurements for the length and width, make up a support pad which has the same or slightly greater area.

     

    OME

     

     

    • Agree 1
  3. Whatever jack type you use, don't forget to include a solid base plate for the jack, otherwise it will sink into the ground.

     

    1. Try to locate the data obtained when your aircraft was weighed for weight and balance calculations. This will give you the weight borne by each wheel.
       
       
    2. Work out the dimensions of the base plate required to support this weight using these figures for soil density:
       
       

     

     

    Dry density in g/cm3 *

     

    Sand = 1.52

     

    Sandy Loam = 1.44

     

    Loam = 1.36

     

    Silt Loam = 1.28

     

    Clay Loam = 1.28

     

    Clay = 1.20

     

    Concrete = 2.40

     

    Dry density for most soils varies within a range of 1.1-1.6 g/cm3

     

    * Multiply these values by 0.001 to get an answer in kg/cm3

     

     

     

    OME

     

     

  4. I also was only able to swing about once a week, and it took me hours to get to solo. Part of that was cancellations due to weather, other commitments on a weekend, both of which help you lose your flow.

    But looking back one of my problems was performance anxiety..

    Oh dear! Performance anxiety. No matter how many times she says, "It's OK, love. I understand.", it's always in the back of your mind the next time.

     

     

    • Like 2
  5. My apologies. I used the word "outlanding" in an attempt to distinguish what looked like a controlled landing with a bad stop, from the end result of a "plummet from the skies". Please bear in mind that I posted within half an hour of the incident, without having attended the scene, so I was trying to be as non-committal as I could. Besides, when the fan stops turning properly, you find yourself in a glider, anyway.

     

    OME

     

     

    • Like 2
  6. Another method is to use a liquid glue and stain remover. I've had success with Pascoe's "Oomph" which is sold in supermarkets. Apart from softening the glue holding the vinyl stickers on the the plane, it leaves a fresh, pleasant citrus smell. Non flammable. Australian made.

     

    OME

     

     

    • Informative 1
  7. I've just removed similar vinyl lettering from the rear window of my son's car. I used a heat gun to soften the glue and a scraper to lift and separate the lettering from the glass. Same thing should work on the plane. If you don't have a heat gun, try a hair dryer.

     

    And don't get confused and try to use a Playtex

     

    playtex.jpg.18eb4df2339e323942eb78bbfb694caf.jpg

     

     

  8. but of course the kicker is if you don't have enough money

    That's basically the reason for the insurance. Be realistic, how much damage to people and property (apart from starting a bush fire) could you do with a light plane on a strip remote from settlements.

     

    I think the amount is 20 million as a good figure at the moment

    That seems to be the normal amount covered in car, boat and personal public liability policies.I think the question you should settle with the land owner is 'Who is liable for the maintenance of the strip including approach paths in a safe, usable condition?'

     

    OME

     

     

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