LESSON 15 
AUTOMOBILE TURN 
, ES purpose of this lesson is to illustrate one 
~ method of designing an automobile turn and to 
es the student practice in drafting. 
Assignment 
) Make the cleanest and neatest copy possi- 
ble of the drawing here shown, Figure 26. Do 
not trace the drawing — redraw it at a larger scale. A scale of 
1” = 20’ will usually be convenient. 
The new drawing should be made first in pencil, using medium 
hard lead. It should then be inked. This inking may be made 
with ruling pen and compass, or it may be made free-hand with a 
fairly coarse writing pen, as was the original drawing here repro- 
duced. Where drawings are to be used for taking off measure- 
ments in construction they should be accurately drawn with ruling 
pen, but when they are to serve as diagrams merely to illustrate an 
idea, as in this case, they can be done better by the free-hand method 
here recommended. 
Be careful not to get ink under the edge of the triangle in cross- 
hatching; be careful to get the cross-hatching even; get a firm, clean 
outline on the shrubbery masses; make the lines connect without 
break where the change comes from straight line to arc of circle; 
be sure that the stippling which represents lawn is made with uni- 
form dots; and that requires that the pen does not drag or scratch. 
Discussion 
The .arrangement here proposed for an automobile turn is 
easily constructed and is very economical of space. It can be in- 
63 
