HLT1 - AB1, SRBs and LP Sketch Draft (3)
HLT1 - AB1, SRBs and LP Draft (2)
FV3* Cancelled Episode II Clip
HLT1 - Experiment Series - Scaled "Al Cowlings" Rocket (1)
The second stage of the HLT1 project is the first stage carrier rocket and is one of the more significant in the experiment series.

Ballistic coefficient models do not calculate for thrust pressure inefficiencies from displacement. As displayed in the aerodynamic pressure diagram, thrust efficiency is lost as density is compensated. The first experiment at managing this loss will employ a cowling to funnel displaced atmosphere to a channel around and possibly through the combustion chamber.

In addition to purposing the redirection of atmosphere towards the rear of the rocket, utilizing dimple aerodynamics which creates a turbulence buffer and lowers separation will draw down more stabilized low pressure along the y-axis of the craft.

Engineering > HLT1
HLT1 - Experiment Series - Scaled Launch Platform (1)