Skip to content
Back of the Box Builds

Back of the Box Builds

LEGO Alternate Builds!

  • SETS
    • Adventurers
    • Aquazone
    • Belville
    • BATMAN™
    • BIONICLE
    • Building Set with People
    • Castle
    • Duplo
    • Fabuland
    • Harry Potter
    • Holiday and Event
    • LEGOLAND
    • Model Team
    • Pirates
    • Space
    • Star Wars
    • Technic
    • Train
    • Town
    • Universal Building Set
    • Western
    • More Sets
    • Misc
  • USEFUL LINKS
    • Submit Instructions!
    • New Instructions
    • New Official Sets
    • New Alternate Builds
    • Minifigs
    • Very Small Builds
    • Small Builds
    • Medium Builds
    • Large Builds
    • Extra Large Builds
    • How BOTBB was Built
  • THIS IS AN INDEPENDENT SITE NOT AUTHORIZED OR SPONSORED BY THE LEGO GROUP
Alternate Builds Classic Town Fire Instructions Added Small Alt Build Small Builds Town Town Alternate Builds 

6685 – Back B

October 5, 2023October 10, 2023 Master Builder 3729 Views

From: 6685: Fire Copter 1
Name: Single Engine Airplane 1 2
Instructions: View PDF | Download .io File

Contributions

  1. Name from catalog 1982 Medium US (114117/114217-US).
  2. PDF and .io file submitted on October 5, 2023 by: Valdis
  • ← 6430 – Back A
  • 6484 – Back E →

You May Also Like

1687 – Back D

January 25, 2022January 25, 2022 Master Builder

6953 – Back D

May 16, 2023May 17, 2023 Master Builder

6336 – Back E

July 12, 2021July 12, 2021 Master Builder

6198 – Back A

October 29, 2019April 4, 2020 Master Builder

6514: Trail Ranger

May 10, 2022May 10, 2022 Master Builder

6825: Cosmic Comet

September 12, 2019March 18, 2024 Master Builder

EXPLORE MORE OFFICIAL SETS

2154: Robo Master
ABCs Box Story Large Builds Official Sets Robo Force Robo Force Sets Space 

2154: Robo Master

June 14, 2023February 11, 2025 Master Builder

Year Released: 1997BricklinkInstructions *Alternate Build Connection: Blacktron Concept The box reads, “Robo Force patrols the planet and protects the people from

6155: Deep Sea Predator
Aquashark Aquazone Aquazone Sets Official Sets Small Builds 

6155: Deep Sea Predator

May 10, 2022May 10, 2022 Master Builder
369: Coast Guard Station
Coast Guard LEGOLAND Medium Builds Official Sets 

369: Coast Guard Station

October 26, 2026October 26, 2026 Master Builder
6087: Witch’s Magic Manor
Castle Castle Sets Fright Knights Large Builds Official Sets 

6087: Witch’s Magic Manor

July 8, 2022July 8, 2022 Master Builder
1974-3: Smuggler’s Hayride
Bonus/Value Pack Sets Castle Castle Sets Forestmen Official Sets Small Builds 

1974-3: Smuggler’s Hayride

September 7, 2023September 8, 2023 Master Builder
6381: Motor Speedway
Medium Builds Official Sets Town Town Sets 

6381: Motor Speedway

October 5, 2019February 19, 2023 Master Builder
6458: Satellite with Astronaut
Official Sets Space Port Town Town Sets Very Small Builds 

6458: Satellite with Astronaut

December 17, 2025December 17, 2025 Master Builder
6982: Explorien Starship
Exploriens Exploriens Sets Extra Large Builds Official Sets 

6982: Explorien Starship

November 9, 2019December 13, 2024 Master Builder
6689: Post-Station
Classic Town Official Sets Post Office Small Builds Town Town Sets 

6689: Post-Station

October 23, 2026October 23, 2026 Master Builder
6847: Space Dozer
ABCs Classic Space Classic Space Sets Official Sets Small Builds Space 

6847: Space Dozer

January 29, 2025April 10, 2025 Master Builder
6790: Bandit’s Wheelgun
Cowboys Official Sets Very Small Builds Western Western Sets 

6790: Bandit’s Wheelgun

October 10, 2023October 10, 2023 Master Builder
6022: Horse Cart
Castle Castle Sets Lion Knights Official Sets Very Small Builds 

6022: Horse Cart

October 19, 2019April 4, 2020 Master Builder
6817: Beta Buzzer
ABCs Insectoids Insectoids Sets Official Sets Space Very Small Builds 

6817: Beta Buzzer

June 1, 2022March 22, 2025 Master Builder
6842: Shuttle Craft
Classic Space Classic Space Sets Official Sets Small Builds 

6842: Shuttle Craft

October 21, 2019October 21, 2019 Master Builder
924 (487): Space Cruiser
Classic Space Classic Space Sets Different Box Versions Different Set Numbers Jens Nygaard Knudsen LL Link Medium Builds Official Sets Space 

924 (487): Space Cruiser

January 25, 2022October 17, 2024 Master Builder
6370: Weekend Home
Building Classic Town Medium Builds Official Sets Town Town Sets 

6370: Weekend Home

February 17, 2023February 19, 2023 Master Builder

BOXES

INSTRUCTIONS

FAVORITES

MINIFIGS

About This Site

Logo
There were once pictures of additional LEGO® builds on the back of set boxes. Written on the boxes was typically something about the endless building possibilities, "Build any of these exciting models with this set!" There were no instructions for these alternate builds, until now.

Sets

  • Adventurers
  • Aquazone
  • BATMAN
  • Bionicle
  • Belville
  • Building Set with People
  • Castle
  • Duplo
  • Fabuland
  • Harry Potter
  • Holiday and Event
  • LEGOLAND
  • Model Team
  • Pirates
  • Space
  • Star Wars
  • Technic
  • Train
  • Town
  • Universal Building Set
  • Western
  • More Sets
  • Misc

Useful Links

  • Submit Instructions!
  • New Instructions
  • New Official Sets
  • New Alternate Builds
  • Minifigs
  • Very Small Builds (<35 pcs)
  • Small Builds (<100 pcs)
  • Medium Builds (<200 pcs)
  • Large Builds (<400 pcs)
  • Extra Large Builds (>400 pcs)
  • How BOTBB was Built

In Honor of 1526

The classic space set that never was.

Copyright © 2026 Back of the Box Builds. All rights reserved. LEGO® is a trademark of the LEGO Group of companies which does not sponsor, authorize, or endorse this site.