• Created by Unknown User (astrocrg@mit.edu), last modified by Unknown User (reilleya@mit.edu) on Nov 29, 2017 02:43

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Overview

Xaphan White was is a modified variant of the team's first composite propellant. It uses higher solids loading and fewer additives to achieve improved performance.

 

Formula

Appropriately certified individuals can find the formula here.

Mixing

This records all of the mixings of this propellant performed by the team.

Mixing Date
Serial Numbers
Site
Result
9-29-2017XW-98 #1, #217-110First two 98 mm grains mixed. Improper equivalent weight calculation lead to soft cure.
11-7-2017XW-98 #317-110Mixing to characterize EZ-Cast. Used old mixer.
11-12-2017XW-98 #417-110Used old mixer. Improvements to casting process. Slightly lower solids loading
11-14-2017XW-98 #5-717-110First mixing with new mixer. 3 characterization grain for qualification testing.
11-28-2017PT-98 #10, #1117-110Used new casting procedure.

 

Testing

Test #
Date
Site
Result
Characterization Static Fire #1November 25, 2017Crow IslandNozzle Failure
Characterization Static Fire #2November 25, 2017Crow IslandNozzle Failure
Characterization Static Fire #3November 25, 2017Crow IslandMotor success, ptap failure
Characterization Static Fire #4November 25, 2017Crow IslandMotor success
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