11. A fifth longeron ran centrally above them, positioned so that the overall fuselage section was an isosceles triangle at the rear. 12. These Vs leaned outwards, their base on the lower wing strengthened with a further single strut to the upper fuselage longeron . 13. In a report released on 10 January 2008, nine other F-15s were identified to have similar problems in the longeron . 14. The hull was a normal frame and longeron design with dihedral, with smaller fins mounted on its tips perpendicular to its surface. 15. Each outer panel had a streamlined V-strut from the lower fuselage longeron to the spars a little beyond mid-span. 16. Each wheel was mounted on its own cranked axle from the lower fuselage longeron and had a rearwards drag strut from that longeron. 17. Each wheel was mounted on its own cranked axle from the lower fuselage longeron and had a rearwards drag strut from that longeron . 18. The Astore was a faired bracing V-strut joined the lower longeron to the wing at about one third span on each side. 19. The triangular cross-section fuselage was unusually deep, such that the undercarriage cross-axle was attached to the keel or bottom longeron . 20. The Gnome is an all wood low-wing monoplane, each wing braced from above with a slender strut to the upper fuselage longeron .
