Overview
The way in which the various Recovery soft goods (e.g. lines, parachutes) are packed inside the cup and booster coupling section will play a direct role in the deployment dynamics. The various soft goods also influence flight vehicle dimensions by requiring a minimum volume. This page seeks to determine the minimum Recovery stowage volume and the most effective packing arrangement for mission success.
Main Parachute Packing Volume
For information on packing the main parachute into the deployment bag and packing the drogue parachute into the booster coupling section, click here.
When packed by hand into the SkyAngle DFB XL deployment bag, the main parachute occupies a cylinder of approximately 13" in length and 16" circumference, for a total volume of approximately 265 in3. Under tight compression the volume is 161 in3. Its shroud lines are 0.15" in diameter and are 126" in length. Taken together, all 16 shroud lines occupy approximately 36 in3.
Webbing Packing Volume
Webbing lengths subject to change, particularly due to updated forebody wake constraints. The webbing lengths (which are currently expected to increase) can be divided into three categories:
Main Parachute Length
The Main parachute webbing length is WA,B. As of 1/15/2018, the total length is 474". Two different possibilities for materials are tubular nylon (1" and 5/8" width, both approximately 0.1") and 2000lb Braided Kevlar. The resulting weight and volume are shown in the table below:
Cross Sectional Area (in2) | Volume (in3) | Linear Mass Density (lb/ft) | Total Weight (lb) | |
|---|---|---|---|---|
| Tubular Nylon 1" | 0.1 | 47.4 | 0.0274 | 1.08 |
| Tubular Nylon 5/8" | 0.0625 | 29.6 | 0.0171 | 0.68 |
| 2000lb Braided Kevlar | 0.0154 | 7.3 | 0.00454 | 0.18 |
Drogue Parachute Length
The Drogue parachute webbing length is the combination of WA,E,F,G (aka WE,F,G) and WC,D,F. As of 1/15/2018, the total length is 472".
Mission Package to Fin Can Length
The mission package to fin can length is WA,H. As of 1/15/2018, the total length is 295.4".