Radar Performance vs MachDB

Radar Performance calculates the geometry of aircraft weather radar beams with respect to the earth, the freezing level, and the band of altitudes that provide the maximum weather radar returns (the "bright band"). It also shows the areas on the radar display where the beam is too high or low to effectively detect active weather and areas where you may see ground returns. Radar Performance also includes an Overfly mode for confirming that the tops of lower-level convective weather remain safely below your aircraft. You choose a safe clearance altitude and a tactical range, and the app calculates the radar tilt at which the bottom of the beam just reaches that altitude at that range. With this tilt set, any weather returns indicate that the tops have penetrated your safety margin, so going around the weather is advised. Overfly mode is available at aircraft altitudes of 15,000 ft and above, and is inspired by Tom McGrath's "Snowplow" technique. Radar Performance supports a variety of weather radar models as well as a "generic" model. It is not specific to any aircraft type.

MachDB allows you to download and transfer Garmin avionics database updates to an SD card in seconds using your iPhone or iPad for fast updates in the field. All you need is your iPhone or iPad and a standard USB-C SD card reader. No proprietary hardware required! Download fast over Wi-Fi or Cellular connections. MachDB is compatible with all modern Garmin avionics that use SD cards or USB keys for database updates, using your existing Jeppesen or Garmin database account. Supported avionics include: -Garmin G1000, G1000 Nxi, Perspective and Perspective + -Garmin G3000 and Perspective Touch -Garmin GTN 600 and 700 Xi -Garmin G500, G600 and G700 -Garmin G3X and G2000 -Garmin GI 275 Supported Database Providers: -Jeppesen -Garmin