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  1. gnvav8r

    CNF Question

    Computer Navigation Fixes (CNF) show up on some GPS plates... often on a DME arc, so that the GPS can give you guidance on when to start a turn. They are also used by the GPS on approaches that lack a FAF (such as a VOR overlay approach). The GPS can do the RAIM check and in the case of WAAS...
  2. gnvav8r

    Affordable IFR GPS

    I don't believe there are any handhelds that are IFR approved. For that you need a panel mount. The reason for having an approved GPS is not for enroute flying. It's the approaches. Many airports have only GPS approaches and more are being added all the time.
  3. gnvav8r

    How to add a plane to Flight Simulator?

    Go to: http://www.flightsim.com/cgi/kds?$=main/howto/fsxacft.htm
  4. gnvav8r

    Turn Radius

    Another common Rule of Thumb: TAS/200 = turn radius (nm) The question sometime comes up ~ should you use TAS or GS? Remembering that a 20 kt wind will blow you 2000 ft in a minute (I bet Cory Lidle would have loved to have remembered that when he made his fatal turn in NYC... if he'd turned...
  5. gnvav8r

    Turn Radius

    The figures for turn radius are independent of aircraft type. Radius = V*V/11.26*tan (bank angle) where V = TAS
  7. gnvav8r

    Blood Pressure Question

    Good point and I didn't know that. Sleep Apnea comes in all gradations to those who mouth breathe when asleep, to those requiring CPAP machinery. In my case, if I inhale briskly, the sides of my nose tend to collapse... the strips made quite an improvement... but I don't think I have true...
  8. gnvav8r

    Blood Pressure Question

    BP Tip Here is an interesting thing for you to try... to lower your blood pressure without drugs. I had a mild hypertension (BP 140/90) not enough to worry about passing medical, but was on a minimal dose of anti-hypertensive. Then one day my wife bought me a pack of nasal strips. You can get...
  9. gnvav8r

    vdp

    ILS don't have 'em 'cause you miss at a DH, which just happens to be very close to the VDP (if you calculated it). If you break out, you are essentially at VDP and can safely continue your descent Some VOR approaches do not have 'em, especially if there is no DME readout. How would you know...
  10. gnvav8r

    IWC Spitfire UTC

    You paid $4200 for a WATCH??!!
  11. gnvav8r

    LNAV/VNAV Question

    That's curious. Wonder why the LPV minimum is so high at APC? Have a look at AVL. The LPV gets you down to within 50 of the ILS DH. And Asheville is in the mountains! You'd think they could do at least as well at APC?? (and airports without an ILS or Loc approach ~ that's the whole idea of...
  13. gnvav8r

    LNAV/VNAV Question

    Your comments are appreciated, Drew I became fascinated with CANPA a few months ago, and despite some negative commentary (from the likes of John Deakin at avweb.com) decided to explore what a private individual, without fancy equipment could do safely. I wrote a computer program (well excel...
  14. gnvav8r

    LNAV/VNAV Question

    Well no... change the word "would" to "could". I understand the nicety of doing exactly what the procedure calls for. I was struck that we now have more than one miss procedure on the same page... DH starts an immediate climb to MAP before turning, if that is called for... MDA continues at...
  15. gnvav8r

    LNAV/VNAV Question

    Thank you, atldc9. I had not known about the extra "cushion" they put in for glideslope bracketing. I did run across the sentences in IPH as you quoted, as well as this from AIM 5-4-21 "From AIM 5-4-21. ... "Protected obstacle clearance areas for missed approach are predicated on the...
  16. gnvav8r

    Distance from VOR Formulas

    2) Wind is 360 at 50. What heading wll you fly to track inbound on the 270 radial? Depends on your TAS. Here's how to figure Crosswinds in your head: Use the RULE OF SIXTY, which gives the number of nm an angle of 1 deg subtends at 60 nm... Well it should really be the RULE OF FIFTY-SEVEN...
  17. gnvav8r

    LNAV/VNAV Question

    I've just had my GNS430 upgraded to WAAS and am learning the new approaches. Can anybody explain to me why the plain vanilla LNAV minimum at Gainesville (KGNV RNAV 29 approach) is lower than the LNAV/VNAV minimum? I thought the LNAV/VNAV with a DA is more precise than LNAV with an MDA. If the...
  19. gnvav8r

    Florida Keys

    We took a seaplane to the Dry Tortugas, about 70 nm west. Historic fort, where Dr. Mudd was interred for the "crime" of unknowingly setting John Wilkes Booth broken leg. With typical gov't foresight, the Fort was build on a suitable key, only later did they realize that the surrounding waters...
  20. gnvav8r

    Portable collision avoidance devices

    Yes, I have the XRX. And no it only occasionally misses traffic... but if you are on the tarmac and a regional jet takes off... or enters the pattern you wonder why it seemed to have missed it... then 30 sec later it reports it. So there is this definite delay. On rare occasions it does not...
  21. gnvav8r

    Portable collision avoidance devices

    I have been quite pleased with ZAON's PCAS. It calls out both range and bearing (unlike many that give you range only). It does this with a small phased array anatenna. The thing sits on the glare shield. I have found it to be quite accurate... it's main fault is that it takes awhile to...
  22. gnvav8r

    Irate NW Pilot

    Well none of us has all the facts. If this is (relatively normal behavior for this gentleman, that happend to be overheard) that is one thing; and all the comments about double standards apply. But if this is a sudden "break" from his normal demeanor... then you have to worry about what caused...
  23. gnvav8r

    Thunderstorms

    Extreme <The old system of ranging radar echo intensity from 1 to 6 is being replaced with 4 levels: light, moderate, heavy (and I belive extreme, someone correct me if I'm wrong). > Ground based NEXRAD used to have 6 levels, but that is being replaced by four: Light = 0.1" rain/hr...
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