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Found 11 results

  1. Every two years (or three with AirWolf straps), I am faced with spending upwards of $8,000 for replacing the TT-straps on my helicopter due to a ridiculous AD which calls for replacement every 2 to 3 years, or 2,000 hours. I believe this AD is based on one failure of one strap in a salty, ocean-air environment. I have talked to numerous mechanics, who all say that they find the "used" straps in perfect condition! Not noticeable wear, no penetrations of their outer plastic membrane and no corrosion. And in the cases of private owners, like me, there are hardly any hours on them comparatively to commercials ops. It is a shear waste of time, money and resources! I'm not sure how they came up with the time limit to begin with ... 2 to 3 years is hardly any time at all! I believe the AD should based on "flight hours" and/or inspections of some kind or at least a time frame of hours/years that makes sense. Does the FAA even listen to concerns such as these? This AD is overkill.
  2. What's the cylinder on the top of the bell 505 rotor hub?
  3. Hi guys, I'm looking for a drawing/diagram that shows the belt drive transmission on the Robinson R44 I searched but couldn't find anything but this
  4. So I'm interested in learning more about rotor head/hub design so I did some searching and I find that most helicopter books only discuss aerodynamics, this is not really useful for me. I'm looking more specifically for an engineering book that discuss rotor head design. Why is there so little published on helicopter engineering? So far the only book I've found is helicopter design and data manual by Stanley J Dzik which according to the description has a chapter on rotor hub design. My main interest is learning more about swashplateless rotor hubs, Like these below. https://www.google.ch/patents/US20090269199 https://dspace-erf.nlr.nl/xmlui/bitstream/handle/20.500.11881/1109/FM08.pdf?sequence=1&isAllowed=y Maybe ichris should write a book
  5. I know it is designed to reduce vibrations but how exactly does it do that? If Any Bell engineers on this forum could explain it without complex calculus that would be awesome
  6. What are the main improvements and differences between the GXP and the older 407's? Couldn't find anything on this so figured I'd ask.
  7. What is the advantage to the Eurocopter "starflex" rotorhub used on the as350 and as365?
  8. CFII seeking time building / ag / ferry opportunities of all kinds. Experience ferrying from Los Angeles to Seattle / Wenatchee 2x and from Los Angeles to Prudhoe Bay, Alaska and back. If you are bringing a ship back from a cherry contract or back from Alaska at the end of the season I'd be delighted to copilot.
  9. I'm trying to find the diameter of the skid gear for the Bell 429 helicopter. I require this information to calculate the contact area in order to complete a school project.
  10. Will be positioning a Bell 407 from Tennessee to Idaho in late June. Terrific opportunity to build valuable turbine/cross country/mountain time inexpensively! Approximately 10 - 15 hours of flight time. Cost is $400 per hour. Aircraft will be returning late September for second opportunity. For more information call (804) 226-3400.
  11. I am starting a research project on helicopter support tooling and equipment and looking for Technicians that I can ask a few questions.
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