Specific scale applications for each Class are listed below at the start of each Class.
Unless otherwise specified, each Category includes model subjects of all eras, types, subjects, and scales.
Categories may be split into two or more sub-categories. The use and naming of splits will be based on the entries at the contest and determined by the National Contest Committee. Pre-named, pre-planned splits are listed below. All other splits will be defined at the contest. The estimated number of splits per Class are listed below. The total award packages (1st, 2nd, and 3rd place awards) will not exceed the sum of the categories, the estimated split counts listed herein, plus 5 additional award packages. For 2020, a maximum of 199 award packages may be presented. This count is exclusive of any additional overall or theme awards.
14 categories – no additional splits anticipated.
Pre-Teen includes entrants through 12 years old.
Teen includes entrants 13 through 17 years old.
There are no separate Out-of-the-Box categories in the Juniors Class.
|21||Teen||IPMS Red River Modelers|
|42||Teen||Mid-Michigan Model Makers|
|Miscellaneous (including Gundams)|
53 categories and pre-planned splits, plus 3 estimated additional splits.
1/144 refers to scales 1/82 and smaller.
1/72 refers to scales1/81 to1/60.
1/48 refers to scales 1/59 to 1/40.
1/32 refers to scales 1/39 and larger.
Categories 101 - 144 are for military aircraft only.
Prop Aircraft categories include aircraft driven by external propellers, and unpowered gliders.
Even-numbered Aircraft categories are Out-of-the-Box categories (per Rules II-1 & III-2).
|101||1/144 and 1/72|
|103-A||1/48 and 1/32||OHMS|
|103-B||1/48 and 1/32 (Pre-Planned Split)||The Bolshevik Brothers|
|Small Aircraft – Single Engine, Prop|
|105-A||1/72: not exceeding 8.5" length or wingspan|
|105-B||1/72: not exceeding 8.5" length or wingspan (pre-planned split)|
|105-C||1/72: not exceeding 8.5" length or wingspan (pre-planned split)|
|105-D||1/72: not exceeding 8.5" length or wingspan (pre-planned split)|
|106||1/72: not exceeding 8.5" length or wingspan, Out-of-the-Box|
|107-A||1/48: not exceeding 13.9" length or wingspan||Ted & Susan|
|107-B||1/48: not exceeding 13.9" length or wingspan (pre-planned split)||Wright Field Scale Modelers|
|107-C||1/48: not exceeding 13.9" length or wingspan (pre-planned split)|
|107-D||1/48: not exceeding 13.9" length or wingspan (pre-planned split)|
|107-E||1/48: not exceeding 13.9" length or wingspan (pre-planned split)|
|108||1/48: not exceeding 13.9" length or wingspan, Out-of-the-Box||Dave Bottger - Austin, TX|
|Medium Prop Aircraft|
|111||1/72: not exceeding 11" length or wingspan|
|113-A||1/48: not exceeding 17" length or wingspan|
|113-B||1/48: not exceeding 17" length or wingspan (pre-planned split)|
|Large Prop Aircraft|
|115||1/72: exceeding 11" length or wingspan|
|117||1/48: exceeding 17" length or wingspan|
|Medium & Large Prop Aircraft|
|118||1/72: exceeding 8.5" length or wingspan, Out-of-the-Box|
|120||1/48: exceeding 13.9" length or wingspan, Out-of-the-Box|
|121-A||1/72: not exceeding 8.5" length or wingspan|
|121-B||1/72: not exceeding 8.5" length or wingspan (pre-planned split)|
|122||1/72: not exceeding 8.5" length or wingspan, Out-of-the-Box|
|125-A||1/48: not exceeding 13.9" length or wingspan||The Skyhawk Association|
|125-B||1/48: not exceeding 13.9" length or wingspan, pre-planned split|
|126||1/48: not exceeding 13.9" length or wingspan, Out-of-the-Box|
|129-A||1/72: exceeding 8.5" length or wingspan|
|129-B||1/72: exceeding 8.5" length or wingspan (pre-planned split)|
|130||1/72: exceeding 8.5" length or wingspan, Out-of-the-Box|
|131-A||1/48: exceeding 13.9" length or wingspan|
|131-B||1/48: exceeding 13.9" length or wingspan (pre-planned split)||IPMS Fort Crook|
|132||1/48: exceeding 13.9" length or wingspan, Out-of-the-Box|
|137||Jet-Powered||Joe Porche in honor of Brother Matt Sherwood|
|141||Small: not exceeding 4.25" in length or wingspan|
|143||Large: exceeding 4.25" in length or wingspan||IPMS Binghamton NY Scale Modelers|
|Rotary Wing (civil or military)|
|151||1/144 and 1/72||Thomas W. Clark|
|153||1/48 and 1/32||Neil Butler|
|Civil, Sport, Racing, and Air Taxis|
|157||1/144 and 1/72||Dayton Area Plastic Modelers|
|161||1/48 and 1/32||IPMS Western Reserve|
|Airliners, Airliner Types, and Airships|
|163||1/144||South Metro Atlanta - Jim Galloway Chapter|
|165||1/72, 1/48, and 1/32|
|Unmanned Aerial Vehicles (civil or military)|
|167||All entries||IPMS Alamo Squadron|
|In-Flight (non-diorama, gear-up, in-flight displays)|
|175||1/72, 1/48, and 1/32||Don Harris Memorial|
|Vacuum-formed (civil or military)|
|181||All entries||Dr. Kendall Brown|
|Conversions (civil or military)|
|183||All entries||Austin Scale Modelers Society|
|Scratch-Built (civil or military)|
|185||All entries||IPMS Marietta GA in memory of Doug Shearer|
34 categories and named splits, plus 1 estimated additional split.
1/35 refers to scales 1/35 and larger.
1/48 refers to scales 1/59 to1/36.
1/72 refers to scales 1/100 to 1/60.
|1/35 Military Vehicles (including tanks, assault guns, and self-propelled guns)||Sponsored By:|
|200-A||Closed-top AFVs, through Korea, Axis Light and Medium||Central Texas Modelers' Society|
|200-B||Closed-top AFVs, through Korea, Axis Heavy|
|200-C||Closed-top AFVs, through Korea, Allied|
|200-D||Closed-top AFVs, through Korea, Other|
|201-A||Closed-top AFVs, post-Korea, NATO|
|201-B||Closed-top AFVs, post-Korea, Warsaw-Pact and Russian|
|201-C||Closed-top AFVs, post-Korea, Other|
|206-A||Open-top AFVs or AFVs with Interiors, Axis|
|206-B||Open-top AFVs or AFVs with Interiors, Allied|
|206-C||Open-top AFVs or AFVs with Interiors, Other|
|210||Armored Cars and Armored Halftracks|
|211||Soft-skinned Military Vehicles|
|1/48 Military Vehicles|
|212||Tracked||IPMS Fort Crook|
|213||Wheeled||Wright Field Scale Modelers|
|1/72 Military Vehicles|
|218-A||Fully Tracked, through Korea, Allied|
|218-B||Fully Tracked, through Korea, Axis|
|218-C||Fully Tracked, through Korea, Other|
|219||Fully Tracked, post Korea|
|220||Armored Cars and Armored Half-tracks|
|221||Soft-skinned Military Vehicles|
|223||All entries||In Memrory of Bob Horton - Quad Cities|
|Conversions and Scratch-Built|
|228||All entries||IPMS Marietta GA In Memory of Doug Shearer|
|Multi- or Towed Vehicles, non-diorama display|
|290-A||1/35 Closed-top AFVs, through Korea, Axis||Tom Moon - IPMS Houston|
|290-B||1/35 Closed-top AFVs, through Korea, Allied|
|290-C||1/35 Closed-top AFVs, Other|
|291||1/35 Open-top AFVs and AFVs with Interiors||The Dark Side|
|292||1/35 Armored Cars and Half-tracks|
|293||1/35 Soft-skinned Vehicles|
|294||1/48 AFVs, Open- and Closed-top|
|295||1/48 Armored Cars, Half-tracks, and Soft-skinned Vehicles|
|296||1/72 AFVs, Open- and Closed-top|
|297||1/72 Armored Cars, Half-tracks, and Soft-skinned Vehicles|
8 categories, plus 6 estimated additional splits.
1/32 and 1/35 figures will compete as 54mm.
|Dismounted and Mounted||Sponsored By:|
|300||53mm and smaller|
|306||Post 1900||Bill McAllister|
|Mounted or With Mount|
|Conversions and Scratch-Built|
|327||All entries||Wright Field Scale Modelers|
16 categories, plus 1 estimated additional split.
1/700 refers to scales 1/451 and smaller.
1/350 refers to scales 1/450 to 1/101.
1/72 refers to scales 1/100 and larger.
|Aircraft Carriers||Sponsored By:|
|Battleships, Battlecruisers, and Cruisers|
|402||1/700||South Metro Atlanta - Jim Galloway Chapter|
|Other Surface Ships, smaller than cruiser-sized: Destroyers,
Escorts, Corvettes, Commercial, etc (except boats)
|Sailing (sail-powered ships and boats)|
|407||All entries||Michael Mackowski|
|Early Steam and Sail|
|408||All entries||IPMS Alexander Lippisch|
|414||1/350, 1946 to present|
|Boats, Speedboats, Motor Torpedo Boats, Motor Patrol Boats|
|Conversions and Scratch-Built|
|425||Multi-media / high-tech kits (per Rule III.2.F)||Bathtub Admirals|
|426||Single-media / legacy kits (per Rule III.2.G)|
21 categories, plus 3 estimated additional splits.
1/32 refers to scales 1/32 and smaller.
1/24 refers to scales 1/31 to 1/20.
1/16 refers to scales 1/19 and larger.
|Factory Stock||Sponsored By:|
|500||1/32||IPMS Great Plains|
|501||1/24, 1959 and older body|
|502||1/24, 1960 and newer body|
|Hot Rods, Street Rods, and Street Machines|
|506||Hot Rods and Street Rods|
|507||Street Machine||Joe Porche in honor of Brother Matt Sherwood|
|517||1/24, Drag Racing, Modified Street and Purpose Built|
|519||1/24, Open Wheel|
|520||1/24, Closed Wheel|
|Large Scale (except motorcycles)|
|Conversions and Scratch-Built|
|Commercial Vehicles (including cargo as part of overall entry)|
|539||Light Commercial (2 axles)|
|540||Heavy Commercial (3 or more axles)|
|Motorcycles (civilian/racing only)|
|545-B||All entries, pre-planned split|
|Automotive Technology and Culture|
|Out-of-the-Box (including motorcycles)|
|591||Hot Rods, Street Rods, Street Machines, and Customs|
8 categories, plus 1 estimated additional split.
|Real Spacecraft, Missiles, and Vehicles (kits and scratch-built)||Sponsored By:|
|600||Real Spacecraft, Missiles, and Vehicles||Galveston Bay Area Modelers|
|601||Hypothetical Design||Mike Mackowski|
|Science Fiction and Fantasy Subjects (see Rule II-18)|
|605||Star Trek and Star Wars, from kits|
|606||Gundams, from kits|
|607||Mecha (robots, etc), from kits|
|610||Conversions and Scratch-built|
13 categories - no additional splits anticipated.
|710||Small Composition (single aircraft, no more than 5 figures), 1/144 and 1/72|
|712||Small Composition (single aircraft, no more than 5 figures), 1/48 and 1/32|
|714||Large Composition (2 or more aircraft, and/or more than 5 figures)|
|720||Small Composition (single vehicle, no more than 5 figures), 1/48 and larger|
|722||Large Composition (2 or more vehicles, and/or more than 5 figures), 1/48 and larger|
|724||Dioramas and Vignettes, 1/49 and smaller|
|730||Vignettes (no more than 5 figures)|
|732||Dioramas (more than 5 figures)|
|740||Vignettes (single vessel/craft)|
|742||Dioramas (multiple vessels/craft)|
11 categories - no additional splits anticipated.
|800||All entries||IPMS Three Rivers - Pittsburgh, PA|
|Humor in Modeling|
|810||All entries||IPMS Marietta GA in memory of Doug Shearer|
|Hypothetical (other than science-fiction)|
|820||Kit-Based (spurious markings on standard kit)|
|821||Kit-Bashed / Scratch-built|
|IPMS Chapter/Group Entry|