Draxon

Spray Practice

Spray Practice: spraying the practice wing from the operator cabin
VRVirtual Reality
Duration
11 Minutes
Training Type
Initial Training
Standards
SAE AS6285F & SAE AS6286E
Languages
English, German, Dutch, Spanish, French, Greek, Arabic, Cantonese Chinese, Turkish

Description

This lesson trains the spray technique for de-icing a wing on a practice wing, a real aircraft wing set up on stands. The lesson first demonstrates the technique with a second de-icer. Trainees then de-ice the wing with step-by-step guidance and complete scored attempts without help. The focus is on keeping the nozzle 1 to 1.5 meters above the surface and clearing the wing strip by strip from the wing tip to the wing root, without touching the wing or spraying into the engine inlet.

Lesson Overview

  1. 1Watch a demonstration with a second de-icer clearing the practice wing from the wing tip to the wing root
  2. 2De-ice the wing with guidance, strip by strip, at the correct spray distance
  3. 3De-ice the wing without guidance in scored attempts rated on time, fluid, spray order and spray distance

Skills Acquired

  • Hold the nozzle at the correct distance above the surface for an effective spray
  • Apply short, steady sweeps from the leading edge to the trailing edge while moving the boom along the wing
  • Work from the wing tip to the wing root until the whole surface is clear
  • Keep the boom clear of the aircraft and the spray out of the engine inlet to prevent aircraft damage

Lesson Procedure

  • The lesson opens on an overview with three parts: demonstration, guided practice and scored practice. The lesson is complete once all three are done.
  • The demonstration shows a second de-icer bringing the nozzle about 1.5 meters above the wing tip, points out the leading and trailing edges, and clears the whole wing in short sweeps while turning the cabin toward the wing root.
  • In the guided practice, the trainee brings the nozzle above the wing tip in three steps: turning the cabin, extending the telescopic boom and lowering the boom.
  • The wing is divided into strips from the wing tip to the wing root. The trainee sprays the highlighted strip until it is fully clear and moves on to the next, with reminders when the spray runs ahead or snow is left behind.
  • Distance messages warn when the nozzle comes too close to the wing or sprays from too far above it.
  • In the scored practice, the trainee de-ices the wing without highlighted strips or reminders and ends each attempt when the wing is clear.
  • The result confirms whether the wing is clean and the attempt was safe, then rates time, fluid used, spray order and spray distance at Beginner, Intermediate or Expert level, with a tip for every rating below Expert. Attempts can be repeated as often as needed.

Safety Scenarios & Learnings

Learning Outcome

Red error and rewind, or end of the attempt in the scored practice; contact can damage the aircraft

Learning Outcome

Red error and rewind, or end of the attempt in the scored practice; fluid is never sprayed directly into an engine

Learning Outcome

Warning; the spray stays on the surface being treated

Learning Outcome

Red error and rewind; the spray loses its effect at that distance

Learning Outcome

Warning; the boom is close to touching the aircraft

Learning Outcome

Attempt not rated as complete; the job is only finished when the whole surface is clear

Gallery

Spray Practice menu with demonstration, guided practice, and scored practice modes
Spraying the practice wing on its stand
Practice wing on a stand next to the de-icing truck