FlightGlobal.com
Home
Premium
Archive
Video
Images
Forum
Atlas
Blogs
Jobs
Shop
RSS
Email Newsletters
You are in:
Home
Aviation History
1929
1929 - 0102.PDF
JANUARY 17, 1929 D The Blackbird "B luebird," Mark IV : View of the Cockpit. Note side by side seating arrange- ment and dual controls. The small levers placed centrally under the instru- ment board are the engine con- trols, while the central lever be- tween the •'joy sticks "trims the tail plane. " FLIGHT " Photograph • A fireproof bulkhead closes the forward end of thefuselage proper, and carries the engine bearers, which are of steel tubes very simply arranged and carrying a cowling, theremoval of which gives access to every part of the engine. Some of our photographs which show the fuselage in skeletonillustrate this very clearly. Wings.—If the fuselage structure is of simple construction, the wings are no less so. They are composed of steel spars carrying Duralumin ribs, and both spars and ribs are of ingenious simplicity. The wing spar consists of two identical halves, joined by riveting along the neutral axis. The two halves of the spar are produced by rolling flat steel strip, an operation which, once the plant is available, cannot be described otherwise than as quite cheap ; as there is but one row of rivets, the spar assembly is reduced to a minimum. Moreover, the type of spar lends itself admirably to the attachment of ribs and fittings, as some of our sketches illustrating wing details show. The ribs, of Duralumin, have flanges made from strip and rolled to the section shown in some of the sketches The [" FLIGHT " Sketches THE BLACKBURN " BLUEBIRD IV ": The main wing ribs are of Duralumin and take the form shown in 1 and 2. The Bristol-Frise ailerons are illustrated in 3 and 4. The manner of attaching the fabric over the rear spar to house the aileron is shown in 5 and 6, while 7 shows a complete rib. 42 !
Sign up to
Flight Digital Magazine
Flight Print Magazine
Airline Business Magazine
E-newsletters
RSS
Events
