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May 6, 2026Journal of Spacecraft and Rockets

Design and Measurements of the BOLT-1B Joint Steps

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Authors

GMGregory McKiernanTWThomas WolfJWJustin Warner

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Overview

BOLT-1B experiment measures surface roughness in sounding rocket tests, indicating effective thermal design limits.

Key Points

  • The research aims to analyze hypersonic boundary-layer transition and its sensitivity to surface roughness in flight experiments.
  • Designed flight experiment with low-curvature geometry and joint steps
  • Developed novel methods for measuring small step heights
  • Conducted roughness measurements during fabrication and environmental testing
  • Confirmed rearward-facing step heights within design limits
  • Quantified step height magnitude and distributions around the azimuth

Cite This Study

McKiernan et al. (2026) studied this question.

synapsesocial.com/papers/69fa8e8904f884e66b530d28https://doi.org/10.2514/1.a36741
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