 HMS Undine
1978 Atlanta, GA; 1st Place Ships Conversions |
 Nautilus
1978 Atlanta, GA; 2nd Place Ships Scratchbuilt |
 HMS Victory
1982 St. Louis, MO; 1st Place Ship Dioramas |
 HMS Nonsuch
1984 Atlanta, GA; 2nd Place Ships Conversions and Scratchbuilt |
 HMS Kestrel
1985 Indianapolis, IN; 1st Place Ships Scratchbuilt and Judges' Best-of-Show Ships |
 HMS Gorgon
1987 Washington, DC; 1st Place Ship Conversions |
 Moby Dick diorama
1988 Dayton, OH; 2nd Place Ships Diorama |
 USRC Alabama
1988 Dayton, OH; 2nd Place Ships Scratchbuilt |
 Anchor Hoy
1989 San Diego, CA; 2nd Place Ships Conversions and Scratchbuilt |
 HMS Wasp
1990 Miami, FL; 1st Place Sci-Fi Scratchbuilt and Judges' Best-of-Show Spacecraft |
 Cloudship Bloodrunner
1991 St. Louis, MO; 1st Place Sci-Fi Scratchbuilt |
 Death Star Diorama
1995 Albuquerque, NM; 3rd Place Sci-Fi Diorama |
 Batplane of 1940
1996 Virginia Beach, VA; 2nd Place Hypothetical |
 Blackhawk Aircraft Collection
1997 Columbus, OH; 1st Place Collections |
 Batmobile of 1966
1998 Santa Clara, CA; 1st Place Custom Auto |
 Giant Mechanical Scorpion
1999 Orlando, FL; 3rd Place Sci-Fi Diorama |
 Batmobile Collection
1999 Orlando, FL; Honorable Mention Collections |
 StarForce Ringship
2012 Orlando, FL; 2nd Place Sci-Fi Scratchbuilt |
 Generic 1950's Spaceship
2015 Columbus, OH; 2nd Place Sci-Fi Scratchbuilt |
 Convair Manned Nuclear Interplanetary Vehicle
2015 Columbus, OH; 3rd Place Hypothetical Spacecraft |
 HMS Thunder Child
2015 Columbus, OH; 3rd Place Sci-Fi Dioramas |