SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. IO3 



Lancley Winc Trussing 1905. 



I •- I ■ I . I ■ I . I ■ I . I . I . I . I 



Hammondsport Winc Trussinc 1914. 



Lower Guy-Posts : A single 

 round wooden post for each pair 

 of wings (see Fig. 3), li" in dia. 

 6^' long. (L.M. Plate 62, p. 184). 



10 The front wing guy-post was lo- 

 cated 28^" in front of the main 

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



11 The rear wing guy-post was lo- 

 cated 31^" in front of the main 

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



12 Upper Guy-Posts : For each pair 

 of wings a single steel tube f" dia., 

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



13 Front wing upper guy-post lo- 

 cated 28^" in front of the main 

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



14 The rear wing upper guy-post was 

 located 31^" 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 



Lower Guy-Posts : Four for each 

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

 which were of streamline form mea- 

 suring lY' X 3i" X 54" long ; and two 

 measuring 2" x 2" with rounded cor- 

 ners, 3'9" long. 



The front wing guy-posts were lo- 

 cated directly underneath the main 

 center spar, 287" further rearward 

 than in 1903. 



The rear wing guy-posts were located 

 directly under the main center spar, 

 312" further rearward than in 1903. 



Upper Guy- Posts : For each pair of 

 wings, two streamline wooden posts 

 each li" x 3V', 76" long, forming an 

 inverted V. (See Fig. 4). 



Front wing upper guy-posts located 

 directly over main spar, 287" further 

 rearward than in 1903. 



The rear wing guy-posts were located 

 directly over the main center spar, 

 31Y' 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 



