114 



AJSTNTJAL REPORT SMITHSONIAN INSTITTJTION, 1942 



Lancley Winc Trussing 1903. 



i~ r \. \ .\ .> . 



Hamhondsport Winc Trussing 1914. 



9 LowEE GtJY-PosTS : A single round 

 wooden post for each pair of wings 

 (see Fig. 3), IVi" In dia. 61/2' long. 

 (L. M. Plate 62, p. 184). 



LowEK Guy-Posts : Four for each pair 

 of wings (see Fig. 4), two of which 

 were of streamline forna measuring 

 11.4" X 3V2" X 54" long; and two meas- 

 uring 2" X 2" with rounded corners, 

 3'9" long. 



10 The front wing guy-post was located The front wing guy-posts were located 

 28l^" in front of the main center directly underneath the main center 

 spar. (L. M. Plate 53), spar, 28^" further rearward than in 



1903. 



11 The rear wing guy-post was located The rear wing guy-posts were located 

 31l^" in front of the main center directly under the main center spar, 



spar. (L.M. Plate 53). 



12 Uppeb Gxnr-PosTs: For each pair 

 of wings a single steel tube 94" dia., 

 43" long. (L. M. p. 184, pi. 62) . 



13 Front wing upper guy-post located 

 281/^" in front of the main center 

 spar. (L. M. pi. 53). 



14 The rear wing upper guy-post was 

 located SIV2" in front of the main 

 center spar. (L. M. pi. 53). 



15 Trussing: The wing trussing wires 

 were attached to the spars at the 

 5th, 7th and 9th ribs out from the 

 center (L. M. pi. 54). The angles 

 between these wires and the spars to 

 which they were attached are shown 

 in Fig. 3. 



311/^" further rearward than in 1903. 



Uppee Gut-Posts: For each pair of 

 wings, two streamline wooden posts 

 each 11/4" x SW', 76" long, forming an 

 inverted V. (See Fig. 4). 



Front wing upper guy-posts located 

 directly over main spar, 28^4" further 

 rearward than in 1903. 



The rear wing guy-posts were located 

 directly over the main center spar, SlVi" 

 further rearward than in 1903. 



Trussing: A different system of wing 

 trussing was used, and the wing trus- 

 sing wires were attached to the spars 

 at the 3rd, 6th and 9th ribs from the 

 center. The angles between these wires 

 and the spars to which they were at- 

 tached were all different from those in 

 the original Langley machine. (See 

 Fig. 4). 



