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old man emu

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About old man emu

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    Well-known member
  • Birthday March 18


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    Narellan Vale, New South Wales,
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  1. Quite possibly, and it is a good question. I wish he'd come back and comment on what has been posted. Isn't it true that there are some aircraft that in Australia are limited by legislation to a MTOW of something like 600 kg, but under legislation elsewhere are permitted 750 kg? And there are no differences between the Australian aircraft and the European one?
  2. Just like sports car manufacturers brag about how much horsepower their engines have, battery brands tend to do the same thing with their performance attributes. Enough brands and companies have told people over the years that "more is better" when it comes to cold cranking amps, that a lot of folks now believe it always the case. While more may be better, it may not be necessary and it may be more expensive. One of the performance attributes is how many cold cranking amps (CCA) a battery can generate. So how is this determined? Since "Cold" is in the name, they put a battery
  3. That table is not good for answering the OP's original question. If the published MTOW is exceeded, can you calculate how much above it the wings can lift. Clearly the question relates to going beyond manufacturer's advice. Remember that the in one famous operation in DC-3 (or C-47) aircraft, they overloaded the planes like a Tokyo commuter train and they still flew. I'm hoping for some discussion on the assumptions I made. This is an interesting topic. There is one factor that the Lift formula cannot account for, and that is the location of the Cent
  4. What Facthunter says is true, but I thought that the question started in the simplest situation - seal level in a standard atmosphere. If you do the calculations for that, then you get a table basically of rotation speed and aircraft take off weights. Then you could create tables for those values at different densities. A thing you have to know is the maximum TAS the aircraft can attain after a ground run, and still clear, say. a 50 ft high object. Obviously, there comes a point where there is insufficient runway length for that. Here we go with the algebra! v^2 =
  5. Actually, it is showing 079 True if the picture was taken in Brisbane and the compass has not been calibrated for all the steel and electronics around it.
  6. Music hath charms to soothe the savage beast. No smartarse, get that plane off the runway without the engine running.
  7. I hope I've read into the question correctly and we are back into the Lift equation, albeit this time in purely practical terms We want to calculate what conditions are need for a wing to generate sufficient Lift to balance, or exceed the weight of the aircraft. So let's look at what can and cannot change in that formula. Total Lift - This is the result of the calculation. Coefficient of Lift - unchangeable as it is part of the aerofoil design Density - We know that is a variable thing. Velocity - That's in True Airspeed, and since density an
  8. Reading from the Judgement, I was struck by the description of the aircraft turning to the left of the centreline after takeoff. The turn was said to have been quite noticeable. I wonder if, given the description of the second T & G, the aircraft was in the early stages of a stall/spin, and only the running into the Ferris Wheel prevented the usual outcome of a stall/spin. The other thing that struck me from reading the judgement was that the Court accepted the experts saying that the standard of pilotage was "below standard". A Court is supposed to be a seeker of fact. It wil
  9. And M'Lord, that's when the radio fully complied with Murphy's Law.
  10. Unfortunately, as with all biologically established limits, the levels KG has shown are averages. Each person could respond differently. Keeping 50 ppm as an allowable maximum, each person should monitor their own responses to CO to see at what level they start to notice deterioration in their well being. Absorbed carbon monoxide is eliminated from the body by exhalation and oxidative metabolism. Oxidative metabolism of carbon monoxide has been estimated to be a relatively small fraction (<10%) of endogenous carbon monoxide elimination. Under most conditions, the dominant route
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