Go with the Flow

A flow check is a procedure where a pilot sets aircraft controls in a particular sequence that follows the layout of the controls, thereby making the position of the controls a reminder to the pilot of what to do. The flow check may or may not group the actions to be accomplished in the same exact order as the checklist. A flow check is not foolproof because as your attention shifts to each gauge or control, you must take the appropriate action and take notice of any abnormal or emergency conditions. When using a flow check in single-pilot operations, you'd best to back it up with a real checklist when time permits.

Becoming a (Wo)Man of Letters

Mnemonics are memory devices that can help a pilot accomplish a sequence of tasks from memory when they don't have the luxury of picking up and reading a checklist. I've learnt many of the common mnemonics (like CGUMPS and the five T's), even though I'm not necessarily fond of some of them. My learning experience has shown me that to be effective, an acronym needs to be catchy and it should contain unique letters that spell out some recognizable word. While no mnemonic is perfect, correlating a series of tasks to a string of identical letters requires more mental effort. And if the same letter is used multiple times, the order of the tasks is more likely to be mixed up in the heat of the moment. Consider the following two mnemonics for an approach briefing.

M - Missed approach
A - Altimeter(s) set
R - Radios set, Nav & Com
T - Time from FAF to MAP
H - Heading on intermediate and final approach
A - Altitudes at FAF, stepdown fixes, DH or MDA

A - ATIS

A - Altimeter

A - Airspeed

A - Approach speed

A - Avionics

I've seen pilots/students make more mistakes with the five A's, the five C's, and the five T's. I've seen pilots unintentionally omit one of the items. Just as often they confess that they know they are forgetting something, but are only able to recall the first letter of the item.

Of course, which mnemonic works for you is up to you. Here's a mnemonic that seems to harken back to an era when smoking was more commonplace. I don't use it, but some pilots swear by it.

C - Controls, free and correct
I - Instruments, left to right, top to bottom
G - Gas set to fullest tank, auxiliary fuel pump
A - Altimeter set
R - Radios, runup completed
T - Trim(s) set for takeoff
I - Interior, doors and windows secure
P - Propeller full
S - Seatbelts, switches

Lastly, here are some memory devices I learned from a friend Lou

This is Lou's before takeoff check for an IFR departure:

D - D/G, De-ice

A - Airspeed, Attitude Indicator Altimeter

R - Radios

N - Needle & Ball

C - Clearance, charts, cockpit

L - Lights

A - Altimeter error

B - marker Beacons

And here's Lou's instrument approach checklist.
B - marker Beacons on
A - ATIS recorded
R - Radios set
D - Directional gyro checked/set

C - Clock
A - Altitude error noted
L - Landing check completed
M - Missed approach briefed

In single-pilot operations, it's obvious that mnemonics have shortcomings similar to flow checks: You best back-up a memorized list of tasks with a checklist.

Mistakes Still Happen

After a long day of flying behind glass panel aircraft, is it any wonder how some pilots might yearn to fly a taildragger made of wood and fabric, with a few simple controls and the minimum compliment of instruments? The problem is that even in a simple aircraft a pilot with good checklist discipline can still make critical mistakes. There are steps pilots can take to reduce these risks and I'll cover that in my next installment.