Pilot Shorthand and Aviation Mnemonics

Aviation moves quickly. A controller may give you a route, altitude, heading, frequency, and transponder code in a single transmission. An ATIS broadcast may contain a dozen pieces of operational information. During an approach, a pilot may need to capture a new altitude or heading while simultaneously flying the aircraft.

Pilots therefore rarely try to write everything word for word. Instead, they use structured notes, abbreviations, symbols, and mnemonics to reduce workload and make important information easier to remember and read back.

There is no single universal shorthand system that every pilot uses. Personal notes only need to be clear to the pilot writing them. However, several conventions and mnemonics are widely recognized.

---

CRAFT: copying an IFR clearance

One of the best-known aviation mnemonics is CRAFT, used to organize an IFR clearance.

Before requesting clearance, prepare the structure:

C  ______________________
R  ______________________
A  ______________________
F  ______________________
T  ______________________

When ATC delivers the clearance, you are no longer trying to remember an entire sentence. You are simply filling five predictable fields.

---

CRAFT example

Suppose ATC says:

Simmers 421, cleared to Frankfurt Airport via NISVA, then as filed.
Climb 5,000 feet, expect flight level 340 ten minutes after departure.
Departure frequency 124.125, squawk 4721.

Your notes might be:

C  EDDF
R  NISVA -> as filed
A  5000 / exp FL340 10 min
F  124.125
T  4721

The exact notation is personal. The structure is what makes CRAFT useful.

---

Building your own pilot shorthand

A good shorthand system removes unnecessary writing without removing meaning.

Common abbreviations and symbols include:

For example:

Climb flight level 240, direct NISVA, contact Belgrade Control 128.225.

can become:

^FL240 | DCT NISVA | CTR 128.225

And:

Turn left heading 180, descend 6,000 feet.

might simply become:

L180 | v6000

The best shorthand is the shorthand you can decode instantly several minutes later.

---

Copying taxi instructions

Taxi clearances are especially suitable for shorthand because taxiway names and runway instructions can otherwise become a long string of words.

For example:

Taxi to runway 25 via Alpha, Bravo, hold short runway 30.

could become:

RWY25 | A B | HS RWY30

A longer clearance such as:

Taxi runway 12 via Alpha, Charlie, Delta, cross runway 05, hold short runway 12.

might become:

12 | A C D | X05 | HS12

Be particularly careful with runway crossings and hold-short instructions. Shorthand should make these instructions more obvious, not less obvious.

If there is any uncertainty about a taxi clearance, stop and ask ATC.

---

Copying ATIS

ATIS broadcasts contain predictable categories of information, making them ideal for a prepared template.

A simple ATIS scratchpad might look like:

INFO ___     TIME ______Z
RWY   ______
WIND  ______
VIS   ______
WX    ______
CLD   ______
T/DP  ______
QNH   ______
APP   ______
NOTES ___________________

For example:

INFO K      1050Z
RWY 30
WIND 320/08
VIS 10+
CLD SCT040
T/DP 18/10
QNH 1017
APP ILS30

When first contacting the relevant controller, the ATIS identifier can then be included naturally:

Belgrade Ground, Simmers 421, stand C3, information Kilo, request taxi.

---

Altitude, heading, and speed changes

During departure, arrival, and approach, ATC instructions often consist of combinations of altitude, heading, and speed.

Instead of writing:

Descend to 4000 feet, heading 260, speed 180 knots

a scratchpad might contain:

v4000 | H260 | S180

Similarly:

^FL180 | R320

can represent a climb to FL180 with a right turn to heading 320.

Keeping these values visually separate reduces the chance of confusing one instruction with another.

---

Approach clearances

Approach instructions can become dense because they may combine vectors, altitude restrictions, approach clearance, and a frequency change.

For example:

Descend 3,000 feet, turn right heading 270, cleared ILS runway 30 approach, contact Tower 118.1.

could be written:

v3000 | R270 | CLR ILS30 | TWR 118.1

Again, the purpose is not to reproduce ATC's sentence. It is to preserve the operational instructions contained within it.

---

Holding instructions

Holding clearances deserve a deliberate note because several pieces of information may arrive together: the holding fix, direction, inbound course or radial, leg length or time, altitude, and expected further clearance information.

A pilot might create a quick structure such as:

FIX   __________
DIR   __________
CRS   __________
LEG   __________
ALT   __________
EFC   __________

Do not rely on a personal abbreviation if it could make a holding clearance ambiguous. Write enough information to reconstruct the hold confidently before entering it.

---

The 5 Ts

The 5 Ts are traditionally used as a memory aid when arriving at a significant point such as a navigation fix or during holding procedures.

They are commonly remembered as:

Turn - Time - Twist - Throttle - Talk

• Turn: make the required turn.
• Time: start or check timing when applicable.
• Twist: set or verify the required navigation course.
• Throttle: adjust power or speed as required.
• Talk: make the necessary radio call.

Modern glass cockpits and automated navigation have changed how some of these actions are performed, but the mnemonic remains useful as a mental model for staying ahead of the aircraft.

---

GUMPS

GUMPS is a classic pre-landing memory check, particularly associated with general aviation.

A common version is:

Gas - Undercarriage - Mixture - Propeller - Switches/Seatbelts

Its exact interpretation depends on the aircraft. A fixed-gear aircraft, for example, obviously does not require the same landing-gear action as a retractable-gear aircraft.

GUMPS should supplement the aircraft's proper checklist, not replace it.

---

FREDA

FREDA is commonly taught as an en-route or periodic cruise check:

Fuel - Radio - Engine - Direction - Altimeter

It prompts the pilot to periodically verify that the aircraft and flight are still configured as expected instead of simply continuing until something attracts attention.

Exact versions can vary between training organizations.

---

IMSAFE

Some aviation mnemonics concern the pilot rather than the aircraft.

IMSAFE is a personal fitness-for-flight checklist:

• I: Illness
• M: Medication
• S: Stress
• A: Alcohol
• F: Fatigue
• E: Emotion / Eating

The idea is simple: aircraft airworthiness is not enough. The pilot must also be fit to fly safely.

---

DECIDE

DECIDE provides a structured framework for aeronautical decision-making:

• D: Detect that a change has occurred.
• E: Estimate the significance of the change.
• C: Choose a desirable outcome.
• I: Identify actions that could achieve it.
• D: Do the necessary action.
• E: Evaluate the result.

It is particularly useful when a situation is abnormal but does not have a single immediate memory action.

---

AVEF and lost communications

In U.S. IFR training, AVEF is used to remember route priority after a communications failure:

Assigned - Vectored - Expected - Filed

The mnemonic helps determine which route should be flown when normal ATC communication is no longer available.

Lost-communications procedures depend on the applicable regulations and airspace. Do not assume a mnemonic learned for one jurisdiction automatically applies everywhere.

---

Mnemonics are not checklists

This distinction is important.

A mnemonic is a memory aid. A checklist is an aircraft or operator procedure.

GUMPS does not replace a Before Landing checklist. CRAFT does not replace verifying an ATC clearance. DECIDE does not replace an aircraft's abnormal or emergency procedure.

Use mnemonics to reduce cognitive workload, not to bypass proper procedures.

---

Never guess what ATC said

Shorthand is useful only after you have correctly understood the instruction.

If you miss a frequency, altitude, taxiway, waypoint, squawk code, or any other part of a clearance, ask ATC to repeat it.

A simple:

Say again.

or a more specific request such as:

Say again altitude.

is preferable to acting on an instruction you only think you heard.

---

Develop a consistent scratchpad

Your shorthand does not need to match another pilot's handwriting or notation. It does need to remain consistent enough that you can interpret it under workload.

A useful personal system should be:

• Fast: it should take less time than writing complete sentences.
• Predictable: the same symbol should always mean the same thing.
• Readable: you should be able to understand it several minutes later.
• Unambiguous: especially for altitude, runway, heading, and hold-short instructions.
• Disposable: once an instruction is superseded, remove or clearly strike it so an old clearance cannot be mistaken for the current one.

---

The principle behind all of it

The real skill is not memorizing dozens of acronyms. It is learning to recognize the structure of aviation information.

An IFR clearance becomes:

Where? Route? Altitude? Frequency? Squawk?

A vector becomes:

Direction? Heading? Altitude? Speed?

A taxi clearance becomes:

Runway? Route? Cross? Hold short?

An ATIS becomes:

Runway? Wind? Weather? Pressure? Approach? Information identifier?

Once you begin thinking this way, ATC transmissions stop sounding like long sentences that must be memorized. They become small groups of predictable operational data.

That is ultimately what good pilot shorthand does: it turns radio traffic into information you can act on.

For simulation use only. Real-world radio procedures, mnemonics, and lost-communications rules vary by country, airspace, and ATC requirements.