MRC Announcement

MRC Announcement

MRC Announcement Another first for JS - the first flapped 18/21m high performance glider fitted with a manual hand rudder control (“MRC”) for pilots with reduced leg functionality. The MRC system has been designed solely by the young JS engineering team over the last 6 months. According to Louis van der Walt, the project manager, there was more complexity than initially anticipated, "The flap handle was modified into the manual rudder control, while the flap control was changed to an electrically driven system. Additionally the airbrake has 5 fixed lock positions, and the wheel-brake actuator is moved to the control stick. Although it seems simple, the complete design consists of more than 300 parts, 17 engineering drawings and more than 35 engineering documents..." This project definitely kept our engineering team quite busy... With the flaps now electronically controlled, a fully redundant auto-flap system has been developed in co-operation with LXNav. Mr. Adam Czeladzki, proud owner of the 75th JS1 produced, observed today's first test flight of the JS1 18 EVO, fitted with the MRC. According to test pilot UysJonker, the forces of the hand rudder are "Remarkably low and it’s quite "interesting" to observe a handle moving in the cockpit while you step on the rudder pedals. The operation of an electrically controlled flap is also quite interesting, with the flap position and recommended flap position indicated on the LX9000 screen.” Adam will assist JS over the next few days to collect the flight test data required to complete the certification process. Once the certification process is completed, the MRC will be an option on the JS1.