LV2c Nosecone
The nosecone for LV2c, is an optimal design based on the Parker profile. Our particular nosecone is optimal at a velocity of Mach 3. The profile is similar to the Newton shape, but a bit fatter. The Newton shape is derived using a hypersonic (ballistic) approximation. Parker, in contrast, accounts for interaction between the gas molecules using a slender body approximation.
The plug designs for the nosecone are shown below.
The apex of the nosecone on LV2c is removable and interchangeable. It threads into the nosecone base via standard c-mount thread. The apex uses a straight taper with a rounded tip rather than following the optimal profile. The drag difference is negligible because the of the small radius.
The source drawing for the images shown above is available in PDF format as well in source (DXF) format.
The tip of the nosecone threads into the main section via C-mount thread (1"-32). The exact C-mount specifications can be found on page 30 of this Mitutoyo document.
The base-end of the nosecone has a threaded aluminum ring (the tip ring) embedded in the narrow end. The dimensions for this ring are included in the DXF drawing above, but a detail of the tip ring appears below.
The tip ring detail is extracted from the DXF drawing, but for convenience, it is also given here in PDF format.
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