File:How an aeroplane is built (1918) (14773095921).jpg

Identifier: Howaeroplanebui00Blak (find matches)
Title: How an aeroplane is built
Year: 1918 (1910s)
Authors: Blakeney, Stepney
Subjects: Airplanes
Publisher: London, "Aeroplane" & general publishing co., ltd
Contributing Library: Smithsonian Libraries
Digitizing Sponsor: Smithsonian Libraries

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ront half of the fuselage, then put a line square across the table about 4 in. from one end. This will enablethe longerons to be accurately placed in position when the time comes. It will be well to pencil on this line, for the general information of all concerned, what it is for, to prevent mistakes. From this point, the distance to the centre line of each cross strut should next be marked, and when these are all done, put a square line across, cutting each point. Next refer to the plan, and from that obtain the cross widths between the longerons at each cross strut. Carefully put a cut line at each end, this will enable you to set the longeron out accurately in plan on the table, and get the correct contour. (See Fig. 8.) LAYING ON. Having done this, lay on one longero nand clamp it to these marks; then the second; after which take a steel tape and accurately check all your distances inbetween the longerons at each strut, taking care to do this on the centre-line of each 56 HOW AN AEROPLANE IS BUILT
Text Appearing After Image:
57 HOW AN AEROPLANE IS BUILT strut, and not at the side. The centre-line may with advantage be marked in fine pencil on the longeron (cutting with a penknife in this case is not permissible). Having adjusted any inaccuracies, small pieces of hard wood about 4 in. by 2 in. by 1 in. may be fixed down by means of glue and screws to the table, being gently pressed against the longeron until their position is definite, and the glue sufficiently set. When this has happened they can be further secured by means of a couple of screws. The position of these distance pieces from either side of the centre-line of the strut should be determined by the length of the steel fittings, and a small margin of, say \ in. each side allowed for freedom. Having fixed all these stops, hard woodturn-buttons should be fixed outside thelongeron—(see Fig. 8)—to press it against the stops, when it is being finally fitted, not forgetting to use a piece of three-ply to prevent damage to the longeron. These turn-buttons are desira

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