FlightGlobal.com
Home
Premium
Archive
Video
Images
Forum
Atlas
Blogs
Jobs
Shop
RSS
Email Newsletters
You are in:
Home
Aviation History
1919
1919 - 1595.PDF
DECEMBER II, 1919 Vt.CKER'5 ViHY HANOUEY PAfit 0 -40O . BOULTON B0UR6E15 FIG. 2, The use of the " Vee " gear has been principally confined to the smaller types of aircraft, but it must be realised that the large craft were in an elementary stage compared with their smaller sisters, and it is difficult to find a case of a large machine whose performance was in itself, or could by reducing undercarriage resistance, be made to be a protec tion against enemy action. Where aircraft are to be used for civil purposes, or where military aircraft are required in peace to have a longer term of life than in war, improvements in undercarriages would seem to be an essential part of their development. There is little doubt that the shock absorbing capacity can be greatly increased, and at the same time provision made for landings side to wind or with the machine canted or tilted. H i ~ The shock absorbing capacity of an undercarriage depends on the total forces that the structure will stand without failure, and also the amount of travel of the shock-absorbing gear. We may first consider the most elementary form of undercarriage, i.e., pneumatic tyred wheels mounted on a rigid axle, as shown in Fig. 4. The machine has a vertical component of velocity u when the wheel touches the ground and, as we are only considering the machine being brought to rest in the vertical plane, we may take the kinetic energy as mu.2/2g (foot-pound units). 1597
Sign up to
Flight Digital Magazine
Flight Print Magazine
Airline Business Magazine
E-newsletters
RSS
Events
