JASCO (Junior Aeronautical Supply Company) and JETCO were companies started and operated by members of the Zaic family. JASCO was the first company and was created by Frank Zaic. After WWII Frank became a full time draftsman and the company transferred to his brother John and sister Christine. Frank wanted to retain the JASCO name so the company name changed to JETCO. Some of the JASCO designs were retained under the new JETCO name. As a result, you can find old kits and plans of the same model with either company name on them.

Several very nice rubber powered sport models were developed. Presented here are reproductions of these models.

If you have access to a 3D printer, you will find some 3D print files for propellers here. The 7 1/2" prop is well suited for these models.