kg). The US aircraft registry records four SA 2-37Bs, all owned by Schweizer Aircraft. All are in the experimental Research and Development category. TG-7A United States Air Force designation for the SGM 2-37. RG-8A In US Coast Guard service the SA 2-37 is designated RG-8A, indicating Glider, Reconnaissance. Operators United States Air Force United States Army United States Coast Guard Colombian Air Force Mexican Air Force Specifications (SGM 2-37) See also References 1980s United States military trainer aircraft Schweizer aircraft Motor gliders Single-engined tractor aircraft Low-wing aircraft Aircraft first flown in 1982