Monday, September 21, 2020

Instruments and Approaches

In general:

Alternates:
  • 6 factors to consider before picking an IFR alternate.
  • Alternate fuel planning for IFR. (Vid 23).
  • Alternate weather minimums for "A NA" airports. (Vid 230).
  • Can you file to an 'alternate not authorized' airport? (Vid 136).
  • IFR alternate minimums for approaches. (Vid 143, Vid 171 or Vid 185).
  • IFR alternate requirements (weather). (Vid 143, Vid 171 or Vid 185).
  • Does alternate need a published approach? Why or why not?  Based on forecast.
  • Non-standard alternate minimums. (Vid 170).
    • Do they apply once airborne? (Vid 246).
  • What are the forecast requirements for alternate airport?  At ETA must be:
    • 600' ceiling w/ 2 SM visibility (airports w/ precision approach)
    • 800' ceiling w/ 2 SM visibility (airports w/ non-precision approach)
  • When do you need an alternate?
    • When WX at destination airport +/- 1 hour of ETA is forecast to be less than 2000’ ceiling and visibility is forecast to be less than 3 miles (123 rule)
    • What constitutes a ceiling?  The lowest broken, overcast, or obscuration (not thin or partial) cloud layer
    • When do you need to file an alternate under IFR?
  • Where do you find the non-standard alternate minimums? (checkride).
Altitudes, minimum (IFR) +
  • 10 minimum IFR altitudes you should know.
  • MAA – max authorized alt, marked with “MAA-“
  • MCA – min crossing alt, min al at which to cross when proceeding to higher segment, marked with an “X” flag
    • 150 FPNM (0-5K’ MSL); 120 FPNM (5K-10K’ MSL); 100 FPNM (10K’ MSL or above)
  • MEA – min enroute alt, NAVAID reception & obstacle clearance (top number on route)
    • Also see "Enroute / Climb / Descent" below.
    • If MEA and MOCA exists, you can use MEA but not below MOCA.
    • MEA vs. MOCA. (Vid 164).
    • What is MEA and MOCA and the difference? (checkride)
  • MEA (RNAV) – same but annotated with “G”, just below MEA
  • MIA – min IFR alt, unless prescribed, 1K (non-mountain ) & 2k (mountain) clearance.
  • MRA – min reception altitude, marked with “R” flag
  • MOCA – min obstruction clearance alt, lowest to meet obstacle clearance and reception only to 22nm of VOR.  Marked with *
  • MSA – min sector alt, min 1K obstacle clearance usually w/in 25nm
  • MTA – min turn alt, provides obstacle clearance for both turn after and turn anticipation, marked with “MTA”. (Vid 219).
  • MVA – min vectoring alt, for radar, the 1K & 2K clearance, can be lower than other alts (sometimes MRVA – min radar vector alt or ASMA – ATC surveillance min alt)
  • OROCA – off route obstruction clearance alt, 1K obstacle clearance in non-mountainous and 2K in mountainous.  No signal guarantee.  The large numbers in grids. (sometimes MORA – min off route alt or Grid MORA)
  • Minimum altitudes you may use for IFR Operations: (checkride)
    • Except when necessary for takeoff / landing, minimum altitudes are:
    • 2K’ above nearest obstacle w/in 4 NM of course (mountainous)
    • 1K’ above nearest obstacle w/in 4 NM of course (non-mountainous)
  • See also, Airspace and Altitude.

Approaches:
Arcs/Arching:
Arrivals / STARS (Standard Terminal Arrival Route):
Charts:
Clearances:
Departures:
Enroute / Climb / Descent:
Filing / Planning:
GPS:
Holding:
Instrument Proficiency Course (IPC): see Flight Reviews.

Knowledge Check/Quizzes/Scenarios:
Lighting / Lights / Approach Lights: also see Airports.
NAVAIDs: Navigational Aids
Procedure Turns:
Radar:
Regulations: see FAR / AIM.

RNAV (Area Navigation):
  • RNAV and GPS: What's the difference?
  • TAA: here it's Terminal Arrival Areas, not Technically Advanced Aircraft.
    • TAA distance and bearing (Vid 36), and tips for determining (Vid 217).
  • See RNAV (GPS) Approaches above.
Standard Instrument Departures (SIDs): see Departures above.

Vertical Guidance / VNAV:
  • The four types of vertical guidance (Vid 7) in IFR flying (Vid 168).
VOR: +
Weather:
Other Information:
- FIG -

Sunday, September 20, 2020

Landing

In General:
----------------------
Aimpoint:
  • See Final below...
Airspeed:
Approach:
ATC and Communication (separate page).

Bounces/Bouncing:
Braking:
Communication and ATC (separate page).

Controls / Control Inputs:
Crosswinds:
Excursions: techniques to avoid them.

Final:
Flaps:
Flare / Roundout:
Floating: see Ground effect below.

Go around(s): go to Maneuvers.

Ground effect:
Gusts:
High Altitude airports:
  • How can I land better at high altitude airports? (Vid 1).
Hydroplaning:
Impossible or Improbable turn:
Knowledge Check / Quizzes:
Landing Gear: see Systems.

Long landing:
  • How to prevent landing long. (Vid 227).
Low approach:
Pilot Induced Oscillation (PIO) or Porpoising:
Power-out 180s:
Runway / Conditions:
Separation:
Short Field:
Soft Field:
Stabilized approach (and landing):
Stop-and-go landing:
Tailwinds:
Touch-and-Go:
Touchdown / Touchdown Point:
Turbulence/Wake Turbulence:
Turn back to land: see Impossible or Improbable Turn above.

Wake turbulence: see Turbulence above.

Saturday, September 19, 2020

Magnetic Compass

Understanding magnetic compasses 1) is somewhat difficult and 2) seems outdated.  However, since every aircraft has one and they technically never fail, it's important to know how they work and how they'll react in turns.  So here it goes...

Magnetic deviation vs. magnetic variation. (Vid 134 or Vid 232).
Compass turns, standard rate... 
  • Time to turn:  degrees to turn/3 = time; so 60° / 3 = 20”
  • Bank:  airspeed/10 + 5 = bank;  90 kts --> 9+5 = 14°
  • Rollout - 1/2 your bank angle in degrees prior to desired heading
“ANDS”
  • ANDS is an acronym for Accelerate North Decelerate South. This is one type of magnetic compass error. This error primarily occurs if you are on an approximate heading of east or west, and most of this type of error occurs between 060 degrees and 120 degrees if the heading is easterly, or 240 degrees through 300 degrees if the heading is westerly.
  • The magnetic compass will indicate a turn to the north if the aircraft is on one of these headings, and will indicate a turn to the south if the aircraft is decelerated while in this heading range. This error occurs due to magnetic dip. The error is eliminated when the airspeed stabilized.
“UNOS”
  • UNOS is an acronym for Undershoot North Overshoot South. A false error occurs on the magnetic compass when the aircraft is turned. This phenomenon of the magnetic compass is called northerly turning error. This error is zero on east or west headings, but is pronounced on turns to either north or south. When turning from east/west to north, the magnetic compass card actually lags the heading of the aircraft, so we undershoot, or turn what appears to be early, when rolling out to a northerly heading. The opposite is true when turning to a southerly heading and we must turn what appears to be past the south heading.
  • How do we compensate for this error?
    • We must factor in latitude at which we are operating, plus one-half of our bank angle. We will use a latitude of 30 degrees for this session. With a bank angle of 16 degrees, we would take half of that (8 degrees) and calculate that into our bearing and roll out on a predetermined magnetic heading. The following is the initial part of the equation at 30 degrees latitude. This data reflects the amount of error when turning to various magnetic headings: If you are turning to:
      • Amount of Error on the Compass 
      • 360 Degrees 30 degrees of error
      • 030 and 330 degrees 20 degrees of error
      • 060 and 300 degrees 10 degrees of 
      • 090 and 270 degrees 0 degrees of error
      • 120 and 240 degrees 10 degrees of error
      • 150 and 210 degrees 20 degrees of error
      • 180 degrees 30 degrees of error
  • Now we must calculate the lead by adding or subtracting ½ of the bank angle and applying this to the compass card readings at different points on the turn. Let’s say we are turning right to a heading of north from a heading of west. There is no error when we are on the initial heading of 270 degrees. We now roll into a 16-degree bank to the right. The compass card is now indicating a turn to the right, but the rate is faster than the turn. Using the information on the last page, the adjusted roll out point is 330 degrees as we are going to UNDERSHOOT NORTH. We deduct ½ of the bank angle (8 degrees) and start our roll out when the compass card is 322 degrees. Here are some other examples, but remember that we OVERSHOOT SOUTH. We will assume a bank angle of 16 degrees for these examples.
    • Direction/New Heading Roll Out Heading Bank Angle Correction Roll Out
      • Left to 360 Degrees 030 degrees 8 degrees 038 degrees
      • Right to 180 Degrees 210 degrees 8 degrees 202 degrees
      • Left to 180 degrees 150 degrees 8 degrees 158 degrees
      • Right to 300 degrees 290 degrees 8 degrees 282 degrees
      • Left to 300 degrees 310 degrees 8 degrees 318 degrees
      • Right to 150 degrees 170 degrees 8 degrees 162 degrees.
  • Remember that the magnetic compass is the primary navigation reference in an aircraft. It is important that you have a general working knowledge of this instrument. These calculations are only used to offset the compass error while you are in a turn. The compass will stabilize when you roll to wings level. A smaller amount of roll out lead is required with smaller bank angles. So if you are at 30 degrees latitude and you are turning left to a heading of 180 degrees with a 5- degree bank angle, you would overshoot the desired heading by 30 degrees and be within 2 ½ degrees when you roll out. I have heard down south they teach “the south leads and the north lags.” Seems like this may be one way to remember what correction to apply.
- FIG -

Thursday, September 17, 2020

Maneuvers / Execution / Techniques

Articles:
Braking: - see Landing (separate page).

Climbs / Descents:
Coordination / Rudder / Yaw:
Emergencies:  separate page.

Energy Management:  From AFH Chapter 4 - Energy management can be defined as the process of planning, monitoring, and controlling altitude and airspeed targets in relation to the airplane’s energy state in order to:
  1. Attain / maintain desired vertical flightpath-airspeed profiles.
  2. Detect, correct, and prevent unintentional altitude-airspeed deviations from desired energy state.
  3. Prevent irreversible deceleration and/or sink rate that results in a crash.
Final: see Landing.
Go Around(s):
  • 8 times or 9 times you should go around.
    • NOTE: They mention "bad bounce" - not "bounce".
  • Avoiding traffic during a go-around. (Vid 184).
  • Botched go around.
  • Go-around technique. (Vid 96).
  • How to fly a go-around.
  • The aircraft will always go UP and LEFT (assuming a single engine piston aircraft)
  • The 'binary' go-around.  Have you been instructed, or is it your own notion, that a bounced landing should be followed by a go-around?  If so, be careful of any 'binary' flying.  Physics are binary but how we handle things is usually not.  Here is a video of a bounce into a go around.  The plane could have easily landed from the bounce and if you're going to go around, do it correctly.  The video might be hard for some to watch.
  • Also see Landing / My Morsals / Pilot Tips of the Week.
Ground Ops:
Ground Reference Maneuvers:
Landing: (separate page)

Maneuver Guides:
  • C172 (Rick Aviation, 2018)
  • C172 (EKU Aviation, 2020)
  • C172 S/R (Thrust Flight, 2021)
  • Also see Ground Reference Maneuvers above.
Night Flight/Flying:
Passengers:
Rudder / Yaw / Coordination: see Coordination above.

Slips:

Spins:  go to Upset Prevention & Recovery Training.

Stalls: +

Steep Spirals:

Steep Turns:

Takeoff: +
Traffic Patterns:

Trim: see Systems / Equipment.

Turn performance (radius):

Visual Flight: - how to enforce it

  • If you have students who stare at the gauges, my first recommendation is to cover them.  So as not to keep them from recognizing a 30° bank turn, I let them see it.  I cut a suction cup to hide the ADI minus the 30° bank turn.  Why?  Because I want them to hear, feel, sense their energy state by using their nose position.  This is also where the stall warning comes into  effect.
Yaw / Coordination / Rudder: see Coordination above.

Flying IS Great - Improve every flight!

Tuesday, September 15, 2020

Mountain Flying

I will teach you mountain flying if so desired.  You can contact me directly, use the "Contact me" form on each page, or go through Springs Aviation.  My availability is always on my AvCal which can help you plan your flight/visit.

If you want to fly in your own airplane, I fully support it, and think it's a better choice.  We've had people fly in from out of state to take the course so don't hesitate to do the same.

These are the academics normally provided:

  • Brief, "Mountain Flying: Ground Knowledge" (PPT or PDF, used by Springs Aviation).
  • Brief, "Mountain Flying: Doing it Safely" (my version, PPT or PDF).
  • Brief outline:
    • Mountain Weather
    • Flight Planning
    • Aircraft Performance
    • Human Factors
    • Navigation and Terrain Awareness
    • Performance Maneuvers
    • Techniques for Crossing Ridge lines
    • Landing and Take-off Techniques
    • Emergency Procedures
    • Go-no-Go judgment
  • Additional handouts: AWOS stations and Suggested Route.
  • Colorado Airport Directory.

This is the typical route, and on SkyVector.


Landing:
  • How can I land better at high altitude airports? (Vid 1).
  • Mechanical turbulence: landing at a mountain airport. (Vid 4).
Weather:

Weather Resources:
  • Monarch Pass AWOS:  719-539-4436
  • Salida (KANK) AWOS:  719-539-5268
  • Bald Mountain AWOS:  303-512-4419
  • Buena Vista (KAEJ) AWOS:  719-395-2599
  • Leadville (KLXV) AWOS:  719-486-8441
  • Aspen (KASE) ASOS:  970-205-2482
  • Glenwood Springs (KGWS) AWOS:  970-524-7386
  • Eagle County (KEGE) AWOS:  970-524-7386
  • Copper Mountain AWOS:  970-968-1715
  • Wilkerson Pass AWOS:  303-512-4418
Other resources:

Flying is great...improve every flight!

Sunday, September 13, 2020

Multiengine / High Performance / Complex

ALSO SEE:
Coffin corner - 6 question quiz.

Jets:
Multiengine:
Training:
Turbochargers: see Turbochargers in Engines / Powerplants.

- FIG -