ANAC Agricultural Pilot Airplane (PAGA) study materials
ANAC Agricultural Pilot Airplane (PAGA) study resources

ANAC Agricultural Pilot Airplane (PAGA) key terms

ANAC Agricultural Pilot Airplane (PAGA) · Get comfortable with the vocabulary.

RBAC 137 (Agricultural Aircraft Operations)

Brazilian civil aviation regulation that sets the certification, operating, and documentation requirements for agricultural aircraft operations, including pilot qualification, aircraft airworthiness, and application activity authorization.

Related: Agricultural Aviation Operating Authorization, Pilot Logbook Endorsement
Agricultural Aviation Operating Authorization

ANAC-issued permission allowing a company or individual to perform aerial application activities, contingent on aircraft airworthiness, trained crew, and compliance with operational and environmental rules.

Related: RBAC 137 (Agricultural Aircraft Operations), Operational Specification
Operational Specification

Document or approval item that defines the limits and conditions under which an operator may conduct agricultural flights, such as approved aircraft types, areas, and procedures.

Related: Agricultural Aviation Operating Authorization, Application Record (Flight Log)
Airworthiness Certificate

Official document confirming that an aircraft meets approved design and safety standards and is permitted to fly; it must remain valid for any agricultural operation to be legal.

Related: Maintenance Release, Special Flight Permit
Pilot Logbook Endorsement

Written record in the pilot's logbook documenting training, experience, or authorization for a specific activity such as agricultural application, required to prove qualification during inspections.

Related: RBAC 137 (Agricultural Aircraft Operations), Agricultural Pilot Certificate
Agricultural Pilot Certificate

Credential or rating that demonstrates a pilot has met the knowledge, experience, and skill requirements to conduct aerial application flights under national regulations.

Related: Pilot Logbook Endorsement, Recurrent Training
Application Record (Flight Log)

Mandatory record of each application flight listing product used, dose, area treated, time, aircraft, and pilot, used for traceability, billing, and regulatory or environmental audits.

Related: Operational Specification, Buffer Zone
Recurrent Training

Periodic instruction and checking required to maintain pilot and crew competence, covering emergency drills, product handling, regulations, and aircraft systems updates.

Related: Agricultural Pilot Certificate, Crew Resource Management (CRM)
Agricultural Aircraft Airframe

The structural body of an application aircraft, typically strengthened for low-level work with corrosion protection, crashworthiness features, and mounting points for spray equipment.

Related: Hopper, Spray Boom
Hopper

Tank mounted in the aircraft that holds the chemical mixture or dry product to be distributed; its contents change aircraft weight and balance during flight.

Related: Spray Boom, Weight and Balance Envelope
Spray Boom

Horizontal pipe assembly fitted with nozzles and mounted under the wings or fuselage to distribute liquid product in a controlled pattern behind the aircraft.

Related: Nozzle, Spray Pattern
Nozzle

Component that breaks liquid into droplets of a chosen size; nozzle type, orifice, and pressure determine droplet spectrum, coverage, and drift potential.

Related: Spray Boom, Droplet Size Spectrum
Droplet Size Spectrum

Distribution of droplet diameters produced by a nozzle system; fine droplets give better coverage but drift more, while coarse droplets reduce drift but may reduce efficacy.

Related: Nozzle, Drift
Spray Pattern

The distribution of product across the swath produced by the boom and nozzle arrangement; it must be checked and adjusted to avoid streaks and overlaps.

Related: Spray Boom, Swath Width
Weight and Balance Envelope

Approved range of aircraft weight and center of gravity positions within which safe handling and performance are guaranteed; exceeding it degrades control and structural safety.

Related: Hopper, Maximum Takeoff Weight
Maximum Takeoff Weight

Highest aircraft mass permitted for takeoff, accounting for airframe limits, density altitude, runway length, and obstacle clearance; hopper load must be adjusted to respect it.

Related: Weight and Balance Envelope, Density Altitude
Density Altitude

Pressure altitude corrected for temperature, representing the altitude the aircraft performance feels; high values reduce lift, engine power, and climb capability during application runs.

Related: Maximum Takeoff Weight, Obstacle Clearance
Swath Width

Effective width of ground covered by one application pass, determined by boom length, nozzle configuration, height, and wind; it governs overlap and total area treated.

Related: Spray Pattern, Application Height
Application Height

Height above the crop or ground at which the aircraft releases product; it affects swath width, drift, coverage, and safety margin over obstacles.

Related: Swath Width, Drift
Drift

Downwind movement of spray droplets or dust away from the target area, influenced by wind, droplet size, release height, and temperature; a primary environmental and safety hazard.

Related: Droplet Size Spectrum, Buffer Zone
Temperature Inversion

Atmospheric condition where temperature increases with height, suppressing vertical mixing and trapping fine droplets near the surface, allowing long-distance drift even in light wind.

Related: Drift, Wind Shear
Wind Shear

Rapid change in wind speed or direction over a short distance or height, which can upset a low-flying aircraft during turns and application passes.

Related: Temperature Inversion, Low-Level Turbulence
Low-Level Turbulence

Irregular air motion near the ground caused by terrain, buildings, or thermal heating, producing bumps that challenge precise tracking and obstacle clearance at application height.

Related: Wind Shear, Obstacle Clearance
Buffer Zone

Setback distance between the application area and sensitive sites such as homes, water bodies, or schools, required to protect people and the environment from spray drift.

Related: Drift, Application Record (Flight Log)
Obstacle Clearance

Minimum safe separation maintained between the aircraft and trees, wires, buildings, or terrain during low-level flight, planned before each pass and monitored continuously.

Related: Power Line Hazard, Low-Level Turbulence
Power Line Hazard

Risk posed by overhead electrical conductors that are hard to see at low altitude; pilots must identify and mark them, plan crossing points, and avoid abrupt pull-ups near wires.

Related: Obstacle Clearance, Emergency Landing Area
Emergency Landing Area

Pre-selected open ground where the pilot can put down if the engine fails or control is lost, chosen during reconnaissance for approach direction and surface condition.

Related: Power Line Hazard, Hopper Jettison
Hopper Jettison

Emergency release of the hopper load to reduce weight and improve climb or glide performance after engine failure or during an uncontrolled descent.

Related: Emergency Landing Area, Hopper
Engine Failure After Takeoff

Critical emergency in which power is lost at low altitude; the pilot must immediately lower the nose, jettison load if needed, and land ahead within the available field.

Related: Hopper Jettison, Emergency Landing Area
Crew Resource Management (CRM)

Training and practice that improves communication, workload distribution, and decision-making among pilot, loader, and ground crew to prevent errors and accidents.

Related: Recurrent Training, Loader (Ground Crew)
Loader (Ground Crew)

Ground team member who mixes and loads products, checks quantities, and signals the pilot; clear communication with the loader prevents overload and product mix-ups.

Related: Crew Resource Management (CRM), Personal Protective Equipment (PPE)
Personal Protective Equipment (PPE)

Gloves, respirator, coveralls, goggles, and boots worn when handling or loading agricultural chemicals to reduce dermal, inhalation, and eye exposure.

Related: Loader (Ground Crew), Material Safety Data Sheet (MSDS)
Material Safety Data Sheet (MSDS)

Document supplied with a chemical product describing its hazards, toxicity, first-aid measures, handling, and environmental precautions; must be available at the operating base.

Related: Personal Protective Equipment (PPE), Toxicology
Toxicology

Study of how chemical products harm living organisms, including routes of exposure, dose-response, and acute or chronic effects relevant to pilots and ground crews.

Related: Material Safety Data Sheet (MSDS), LD50 (Lethal Dose 50)
LD50 (Lethal Dose 50)

Dose of a substance that kills half of a test population; a standard measure of acute toxicity used to compare product hazard and select protective measures.

Related: Toxicology, Personal Protective Equipment (PPE)
Global Positioning System (GPS) Guidance

Satellite-based navigation used to fly precise parallel swaths, mark treated areas, and maintain consistent application height and spacing, especially in low visibility or irregular fields.

Related: Swath Width, Application Map
Application Map

Planned drawing of the field showing boundaries, obstacles, buffer zones, swath lines, and loading points, used for pre-flight briefing and post-flight records.

Related: Global Positioning System (GPS) Guidance, Buffer Zone
Reconnaissance Flight

Pre-application flight or ground survey to identify obstacles, field shape, wind conditions, and emergency landing areas before beginning low-level application passes.

Related: Obstacle Clearance, Emergency Landing Area
Turnaround (Pull-Up) Procedure

Standard maneuver at the end of an application pass in which the pilot climbs, jettisons nothing, and banks back for the next swath while clearing obstacles and other aircraft.

Related: Application Height, Obstacle Clearance