Recreating the Wright R-1820 “Cyclone” (3)

One of the most prominent features of the R-1820 engine cylinders are their rockers. More precisely – their covers, cast as the part of the cylinder head (Figure 85‑1):

0085-01
Figure 85-1 Cylinder valves and their rockers (a cutout)

The R-1820 was a classic four-stroke engine. Its cylinders had two valves: single intake valve, connected to the supercharger via a wide pipe, and single exhaust valve. Movements of these valves were controlled by cams, via pushrods and rocker arms mounted in the cylinder heads. The covers housing these valves and rocker mechanisms were placed on the right and left side of the cylinder head.

Continue reading Recreating the Wright R-1820 “Cyclone” (3)

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Reverting Perspective Distortion and Other Tricks

In this post I will show you how do I create Dauntless side views. First I used the “semi-orthogonal” photo of the SBD-5 as the reference to draw the side view of this version (Figure 4-1). This is the most important picture, because it provides reliable “general reference”:

Figure 4-1 Side view of the SBD-5 and its most important photo reference
Figure 4-1 Side view of the SBD-5 and its most important photo reference

Continue reading Reverting Perspective Distortion and Other Tricks