If you want that perfectly timed inbound leg while rolling out precisely on to the inbound course, then this app is for you!
This app is the finest, most advanced Holding Pattern Computer available today. It not only shows which entry procedure is appropriate, but it also helps the pilot remain mentally oriented to the aircraft's relative position to the pattern, to magnetic north, and any effects of wind.
Whereas other holding pattern apps and training devices suggest an appropriate entry procedure, direct, parallel, or teardrop, this Holding Pattern Computer takes it a few steps further. It provides turn-by-turn directions, including how long to fly a heading before initiating a turn - not just standard rate turns with bank limitations (30° manual flying and 25° with a Flight Director) but arbitrary turn rates too!
Our Holding Pattern Computer App employs a sophisticated patented analytic solution developed by 51-year Aerospace Industry veteran and FAA Safety Team Representative Les Glatt, Ph.D., ATP/CFI-AI, AGI/IGI.
This app is the only holding pattern computer that automatically calculates ground track, wind correction angle, headings, and required timings, given the assigned fix, your true airspeed, and virtually any wind direction and velocity up to 99.99% of TAS.
Additionally, since the outbound time is measured from the point the aircraft turns to the outbound heading, it is no longer necessary to locate the abeam point. How's that for reducing Pilot workload!
The hold screen allows you to set the inbound radial, course or bearing to the fix and to set if the turns in the holding pattern are standard right-hand turns or non-standard left-hand turns.
Entering information is easy. To enter the heading of the inbound leg, tap one of the buttons titled Radial, Course, or Bearing. Then, tap on the white box at the top of the screen displaying the degree value to display an on-screen numeric keyboard, or you can rotate the dial in the middle of the screen using your finger. Next, set the turn direction by tapping one of the buttons titled Left or Right.
If you are using a flight director, or if you wish to use a turn rate other than the standard 3° per second, tap the area of the screen that displays the left or right arrow. You can enter a custom turn rate, or use the standard of 3° per second. If a standard rate turn is selected, the bank angle will be limited to a maximum of 30° when manually flying and 25° with the use of a flight director.
When the bank angle is limited, the rate of turn corresponding to the bank angle limit will be displayed under the Left or Right Turns Arrow.
This screen is where you define the length of the inbound leg.
Many holding patterns define the length of an inbound leg in terms of time, such as 1 or 1.5 minutes depending on altitude, but some holds define the leg in terms of distance, such as six nautical miles.
This holding pattern computer supports inbound leg lengths expressed in either time or distance using any of the following units:
• Nautical Miles
• Nautical Miles (UK)
• Statute Miles
Instead of setting the inbound leg length, you can use this option to calculate a one-circuit holding pattern that will return you to the fix precisely in the time you designate.
Hold time lengths are expressed in:
This screen allows you to set the heading of your aircraft approaching the fix. The computer will use this value to determine the recommended Entry Procedure for the hold and to guide your turns further.
You can change the value displayed in the heading field by tapping it to display an on-screen keyboard. You can also change the heading value by rotating the heading dial using your finger.
Use this screen to enter the aircraft true airspeed and/or calculate the required flight mach.
Along with wind data, the computer uses your true airspeed to determine your ground speed, wind correction angles, and the perfect length and heading for the outbound leg.
You can enter speed expressed in any of the following units:
• Knots (UK)
• Miles per hour
• Kilometers per hour
• Meters per second
With our wind correction calculation, you can fly an outbound leg that will enable you to intercept the inbound leg with a neat standard-rate turn, or custom rate - every time!
Use this screen to enter the direction and speed of the wind. You can rotate the dial to change the wind direction, or tap the value to display an on-screen keyboard.
Wind speeds can be expressed in the following units:
• Knots (UK)
• Statute miles per hour
• Kilometers per hour
The "Entry Pattern" sub-tab on the answer screen graphically depicts the recommended Entry Procedure and lists the steps necessary to fly it.
Direct, Parallel or Teardrop, the appropriate Entry Procedure is selected based on where the tail of the aircraft is located when it passes over the holding fix.
Additionally, the computer calculates which way to turn, left or right, which course and heading to maintain, and how long to fly a heading before initiating a turn.
The "Hold Pattern" tab on the answer screen graphically depicts the calculated Holding Procedure and lists the steps necessary to fly it.
The holding pattern computer calculates which way to turn, left or right, which course and heading to maintain, and how long to fly a heading before initiating a turn.
The shape of the holding pattern depicted on this screen is derived from a completely analytic solution, rather than rule-of-thumb formulas, and is more accurate than the recommendations found in the Airman Information Manual, especially when in the presence of strong winds.