This is the Additional Wood Pack with the sheet and strip wood needed to complete the build. The Yonju is the last ever free plan to be published in RC Model World magazine by Traplet Publications (RCMW August 2017). It was designed by John Rutter especially for his Saito FA-40 four stroke engine, although similar sized engines will also fit. The sleek nose is also perfect for a brushless motor conversion. For 5 function R/C.