I recently purchased a 1976 7GCBC and would like to know if anyone has any info on possible STC's for a Borer prop (Seaplane use) or 8.50's for tires? I currently have a 76/54 Sensenich and 8.00's and am very happy with my performance but as always am looking for more!
My ECA has an STC for 8.50s. It also lists the GCBC on the certificate. It's from Northland Aviation in Fairbanks. I beleive that these are the same folks:
Northland Aviation
3708 University Ave S
Fairbanks, AK 99701
