OSA - Leaders in RC Controller Technology

OSA ThermaCowl

Innovative Products for Demanding Modelers

OSA has been delivering innovative products to meet the challenges of scale modelers for over 16 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 our products are quickly setting standards for scale detail in championship level aircraft. OSA also provides innovative products to deliver improved reliability in any model; scale or sport. Our twin engine synchronizer and glow controller offer safety features found in no other products on the market.