----------------------------------+-------------------+-------------------+-------------------+------------------- | ~1913.~ | ~1913.~ | ~1913.~ | ~1913.~ Model and Date. | Bat boat | Tractor | School | Armoured | hydro | biplane | biplane. | warplane. | biplane. | 3-seater. | | ----------------------------------+-------------------+-------------------+-------------------+------------------- ~Length~ feet (m.)| 30-1/3 (9.20) | 29 (8.85) | 29 (8.85) | 29' 7-1/2" (9) ~Span~ feet (m.)| 41 (12.50) | 40 (12.20) | 40 (12.20) | 50 (15.25) ~Area~ sq. feet (m squared.)| 422 (39) | 365 (34) | 400 (37) | 552 (51) {total lbs. (kgs.)| 1700 (771) | 1750 (794) | 1200 (544) | 2000 (907) ~Weight~ { | | | | {useful lbs. (kgs.)| 500 (227) | 750 (340) | 400 (181) | 800 (362) ~Motor~ h.p.| 90 Austro-Daimler | 80 Gnome | 50 Gnome | 90 Austro-Daimler {max. m.p.h. (km.)| 65 (105) | 74 (125) | 48 (78) | 65 (105) ~Speed~ { | | | | {min. m.p.h. (km.)| 42 (68) | 40 (65) | 35 (60) | 38 (61) ~Endurance~ hrs.| ... | ... | ... | ... ----------------------------------+-------------------+-------------------+-------------------+------------------- Notes.--Wood construction. Carriage wheels and skids. _Control:_ balanced ailerons. [Illustration: Sopwith. Flying boat.] [Illustration: 1913. Tractor biplane.] ~V~ VICKERS. Vickers, Ltd., Vickers House, Broadway, Westminster. School: Brooklands. Seven pupils qualified during 1912.