Battlefield Basics
Mission Essentials
Safety First
In the Field
Signals and Codes
100

This is the total number of lines in a MEDEVAC request.  

What is 9?

100

This line provides the frequency and call sign for communication.    

What is line 2?

100

This line describes the security situation at the pickup site.

What is line 6?

100

This is the size of grid coordinates for a medevac.

What is 8 or 10 -digit grid?

100

This line identifies the exact pickup site location, usually given in grid coordinates.  

What is line 1?

200

This type of request is used to evacuate wounded personnel from the battlefield.  

What is a MEDEVAC request?

200

This line tells how urgent the evacuation is, such as urgent, priority, or routine.  

What is line 3?

200

Line 6 might include “N” for no enemy troops or “X” for this.  

What are enemy troops in the area, armed escort required.

200

This daytime signal uses something colored to help aircraft identify the pickup site.  

What is smoke?

200

This brevity code might be used if the site is marked with vehicle headlights or infrared devices.

What is E (other).

300

This type of communication is most often used to transmit a 9-Line request.  

What is radio transmission?

300

This line specifies if equipment like a hoist or ventilator is needed.  

What is line 4?

300

This brevity code is used for biological contamination.  

What is B?

300

This report distinguishes between patients who must be carried and those who can walk.  

What is patient type (litter vs. ambulatory)?

300

Line 3: 1A, 2C, 4E. 

What is one urgent, two priority and four convivence?

400

This is the primary purpose of the 9-Line format.  

What is to standardize medical evacuation requests?

400

This line distinguishes between litter and ambulatory patients.  

What is line 5?

400

The patient is not in critical condition, but must be picked up within 4 hours. You use this brevity code in line 3.

What is "C" priority?

400

The terrain prevents a helicopter from landing directly. What equipment request would you include and what brevity code?  

What is Bravo, Hoist?

400

This brevity code is used when no marking method is available at the site.  

What is D?

500

This line ensures the MEDEVAC crew knows who they are evacuating, such as U.S. military or civilians.  

What is Line 8 (patient nationality and status)?

500

These lines change based off of wartime and peacetime. 

What are lines 6 and 9?

500

This code means the casualty needs a ventilator at the pickup site.  

What is "D" in line 4?

500

Your unit is evacuating both U.S. soldiers and an enemy prisoner of war. What brevity code must you provide?  

What is A and E? 

500

This brevity code is most often used in situations where patients are buried, pinned, or otherwise inaccessible.  

What is C?