sentences:  Designers Édouard Joly and Jean Délémontez based the design on two of their earlier projects; they combined the wing of the projected D.10 with a lengthened and widened version of the D.9 fuselage.The first example flew on 4 April 1950.Of conventional tailwheel configuration, the D11 featured a fixed, spatted undercarriage, and accommodated pilot and passenger side-by-side.