04/30/2011. Remarks by Walter van Tilborg: "The J-6 Fregata was a design of Jaroslaw Janowski of Lodz in co-operation with Wojciech Jeriorski. The J-6 configuration was very similar to Janowski's earlier designs, but it featured larger wings to allow operation as a motor glider and was available for amateur construction. The aircraft was registered SP-P046 and piloted by Jerzy Kedzierski it first flew on December 15 1993, powered by a 39 hp Mosler CB-40 engine.

Re-engined with a 52 hp J & AS 3PZ-800 three-cylinder engine (modified Honda BF45 marine engine), it was first flown on July 19, 1995. It was lost in an accident a year late, July 16, 1996, by which time the second prototype was flown, registered SP-P049. This featured a more conventional two wheel landing gear.

From 1998 onwards, it was marketed via J & AS Aero Design in Poland and a small number of aircraft were completed, reportedly five: both prototypes, c/n 003 (SP-8056), c/n 004, and c/n 005 (registered in the USA as N105JJ). In 2005 all J-6 rights and some components were acquired by BAE Systems for use in the development of its HERTI (High Endurance Rapid Technology Insertion) long-range reconnaissance UAV (Unmanned Air Vehicle)."