altimeter

  1. birdus

    Thread pitch of altimeter adjustment shaft?

    I have a Cessna altimeter and another one out of a Luscombe. They appear to have the same pitch of the shaft onto which the adjustment knob fits. A .5mm thread pitch gage fits pretty well. Someone over on Practical Machinist suggested it might be 4-48, and that I try a 24 TPI gage to see if it...
  2. FlightInsight

    What happens to an altimeter in cold weather? I put mine in the freezer to find out

    I had a hard time figuring out why the altimeter does what it does in cold weather. Hopefully this video clarifies things. Dan, CFI
  3. W

    For Sale Airspeed Indicator and/or Altimeter (SOLD!)

    Flight Design original equipment (2006 CTSW). Instrument faces and glass look new, 47 hours total on each, before being replaced with twin Dynon Skyviews. Sold as pair - $400 + 2nd-day FedEx shippiing. Airspeed Indicator - UMA, MFG. P/N 16-311-161, $250 + 2nd-day FedEx shipping each...
  4. nickmatic

    Altitude encoding errors... where do I start looking?

    As there is only one very busy avionics guy at my airport, it helps a lot if I can debug things on my own... hoping someone can point me in the right direction. On my last flight ATC kept telling me they were seeing me on radar at around 6000 but I was at 2000-2500 at the highest. I cycled the...
  5. D

    Altimeter and temperature...can't wrap my head around it

    I'm prepping for my FAA Sport Pilot test by doing lots of practice tests. I like to think I understand the physics of temperature and pressure but I get pretty much every question related to these two items and the altimeter wrong. I've tried searching for help but the sites I find just confuse...
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