OSA - Advancing the Art of Scale Modeling Worldwide


Innovative Products for Demanding Modelers

OSA has been delivering innovative products to meet the challenges of scale modelers for over 20 years. OSA products provide unprecedented leadership in scale realism. functionality and reliability. Our products have been used by participants in nearly every US Scalemasters Championship since 1994 and are quickly setting standards for scale detail in both championship level scale aircraft and sport models worlwide. OSA also provides innovative products to deliver improved reliability in any model; scale or sport. Our twin engine synchronizer and glow controllers offer safety features found in no other products on the market. All OSA products are backed by outstanding support and service. If you are looking to add that touch of realism and detail that draws the crowds, you've come to the right place!