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lelebebbel

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lelebebbel last won the day on March 31 2011

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About lelebebbel

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  1. I'd stick with a common model, there are usually good reasons why they are common. AS350, AS355. Nice cabin layout for pax, nobody has to sit backwards and no wall between the front and back passengers. VIP seating is available. Very common and easy to get parts and service for. Pretty drama free aircraft. AS350B3 doesn't really have any advantages over a B2 in this scenario. Internal GW is the same (except for the more expensive dual hydraulic version), and it burns at least 10% more fuel per hour for not much more top speed, at a lot higher cost. If anything you want a B4, but then you w
  2. Larger diameter is more efficient. For pure aerodynamic efficiency the rotor would be very long, very narrow, and spin slowly, with the smallest number of blades possible. Not unlike the wings of a glider plane, for the same reasons. Obviously with a helicopter there are other things that need to be taken into account, such as weight, structural strength, difference in airspeed from root to tip, practical size limitations, controllability etc, which is why we see so many different solutions for what seems like the same problem
  3. that's a 700 Volt 100Ah pack, also known as 70kWh. Which is about the same capacity (and weight) as the battery in a base Tesla Model S. That makes it about as good as you can make them today. I would assume the whole thing isn't meant to be viable for practical use. It's a technology demonstrator and will probably be used to gather data on power demands during different maneuvers, motor behaviour, heat.. etc. Battery capacity may not allow the design of a practically useful electric rotorcraft, but there are lots of other components of the electric drivetrain that you can probably test
  4. Looking at the dimensions of actual, existing tilt rotors, I feel like this CGI concept is just a tad bit optimistic when it comes to the power and size of rotor that would be required to lift something like that off the ground..... Tiny rotors like that would be inefficient as hell, and create downwash like you wouldn't believe. Would probably need a couple of PT6s to turn those things fast enough to make a car fly.
  5. Passengers prefer the ASTAR over the Long Ranger due to the seating arrangement. More open cabin (front passenger isn't as isolated from the rest as in an L) and no backwards seats. I would rule out any 5-seater machines (2+3) because the rear middle seats are usually not very popular. AS350-BAs are cheap but have very very limited internal payload with 5 on board, they really are a 50% fuel type of machine. So I'd look at an AS350-B2 or one of the 3rd-party engine conversions like the SD or whatever.
  6. Just buy any watch that you like, as long as it is easy to read and shows minutes and seconds clearly. Casio, Citizen, Seiko..., even a $15 Timex, doesn't matter. In my experience nobody ever uses "aviation" specific features after about the first week. Some might find a stop watch useful, personally I don't miss it.
  7. Not to mention at 100+kts with the MAP well past any yellow range, he is exceeding power limitations nearly the whole time even before the rotor droops. Talk about being heavy handed with the collective... Some years ago a low-ish time pilot came to our school in Australia looking for re-training. His license had been suspended due to him being the PIC in a fairly high profile (luckily non-fatal) R44 accident, and the re-training and sign off was a condition to get him reinstated. I was basically supposed to conduct an extended flight review with him, and focus on the probable causes of th
  8. Here's the background story I was told: 1) manual used to say do the check at 60% idle. 2) person crashes helicopter 3) lawyer sues bell, says it could have been a hydraulic failure 4) bell says hydraulics are checked every flight 5) lawyer says: ... But only ever at 60% on a cold system, they could have seized once they got hot 6) Bell pays settlement and amends flight manual to do another check at 100% after the flight
  9. You might want to talk to an engineer about this. From what I was told, this amount of oil loss through the breather isn't normal even in an R44, and could indicate that you have excessive crank case pressure, possibly from piston ring blow-by. You could have one or more cracked- or worn out piston rings, or a hooped cylinder. Compression tests alone also aren't all that reliable at detecting these issues.
  10. This is possibly a confusion with the Canadian regs? Up here you can actually, legally, circle to land in a helicopter on an IFR approach, but still use the straight in mins. Circling mins are NA for helicopters. I don't know of any such rule in FAA land though.
  11. Chinook is the default option, largest school by far and good reputation. Bit of a puppy mill these days of course, as comes with the size. Not the cheapest. I can also recommend Heli College Langley, if you want to train at a smaller school these guys are top notch. Both with the theory and with the flying part. Lyle Watts and Geoff Stevens, both decades and tens of thousands of hours of experience.
  12. Buy the "LTE" version, not the WiFi version. The LTE one has a built in GPS. The reason for this is that apparently the GPS receiver is located on the same chip as the cell-phone module. This is the same on all versions of the iPad or iPad mini. You do not need to get a sim card or a plan for it, the GPS works independent of the cell network and doesn't require a sim card. However, you can get a card if you want to - there are apparently some completely free plans available in the US that give you a limited amount of data each month, designed to entice you to buy a full plan. The built
  13. You gotta offer something to get pilots. If that "something" isn't "a lot of money", then it has to be some sort of desirable training. If they pay peanuts and at the same time aren't willing to train anyone, then this is hardly surprising.
  14. Lots of "other" replies. I use AirNav Pro.
  15. if it's manned, then it is - by definition - not a drone.
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