Model Builder: Craig Bradshaw and Nelson Holmberg

Construction: Carbon Fiber and Fiberglass

Year Built: 2012

Motor: Himax 3630-1500

Radio: Spektrum

Electronic Speed Controller: Aquatech 120

Propeller: Octura 447R

Paint Colors: Yellow, White, Blue, Red

Graphics: Vinyl


Notes about the Model: This boat started out in Nelson Holmberg’s shop in 2012 when he purchased the hull only from Craig Bradshaw with the intent of building the Sutphen Spirit. Nelson sold it to Al Kinsman, who built a cowl for the boat to make it the Competition Specialties. Nelson bought the boat back from Al in November 2016 and continued the path to completing the hull as Competition Specialities. It’s the same model as the first RC boat Nelson ever owned. 


Notes about the Real Boat: The real U-10 started life as the 1984 Miss Tosti Asti and eventually became the Competition Specialties for the 1988 Detroit race only, where it ran without a sponsor so owner Steve Woomer put the name of his own company on the boat. It started 1988 on the eastern swing with one-race sponsorship, and eventually became the Vantage Ultra, complete with a beautiful new paint scheme when it hit Tri-Cities.


Notes about 2017: This season marks Nelson’s return to RC racing after two seasons off while he raced outboard hydros.

1988 U-20 Competition Specialties

Owner: Nelson and Susanne Holmberg
Driver(s): Nelson Holmberg