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Fall 2019

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Vittorio C.

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Overview

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"Propulsion" refers to the subteam that provides the systems necessary to accelerate the vehicle.

MIT Rocket Team operates both commercial and custom propulsion systems.

Commercial Off The Shelf (COTS) motors are proven systems, purchased from reputable vendors. They can be flown at all launches with a suitable waiver. Find out more about them here. The team also to pursues custom propulsion systems. For these motors, we build all components in-house including motor hardware and propellant. These motors can only be flown at Tripoli affiliated clubs or independent launch events. 

The development of our in-house propulsion started in the fall of 2015 with an extensive review of local, federal, and University regulations on making rocket motors. Over the summer of 2016 several students conducted research on Project Firefly. Project Firefly graciously allowed us to develop our fuel in tandem with their research. We gained access to their test facilities in exchange for access to our mixing facilities and storage depots. This first propellant formulation was called Xaphan Blue.

Starting in the fall of 2017 as part of Project Hermes, the propulsion team developed a new series of propellant formulations including Ocean Water, Cherry Limeade, and Kickstart. These propellants have each been built off of the knowledge the team gained from their precursors and have been our steps towards high performance, low cost, a pourable solid propellant for use in 4-6" diameter motors in the 10-100 kilonewton-second range.

In February 2020 the staging demonstrator proved to be successful, and Project Pheonix was born! A two-stage Rocket with in-flight ignition that will let us prepare for a space shot. Propulsion's current mission is to develop the motors for the Pheonix Booster & Sustainer, utilizing our newest propellant, Angry Goat, designed from the lessons learned in making Cherry Limeade and Kickstart.

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Getting Started

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For those joining the propulsion subteam, welcome! Below are article versions of the presentations
from our initial meetings so you can reference the material at any time:

(Link to parent page here)

Lecture 1: Theory and Basis of Solid Rocket Propulsion

Lecture 2: Propellant Formulation

Lecture 3: Propellant Production

Lecture 4: Internal Ballistics

Lecture 5: Hardware Design of Cases and Bolts

Lecture 6: Hardware Design of Nozzles & Closures

Lecture 7: Manufacturing Hardware

Hydrostatic Test & Static Fires

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Current Project

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Propulsion is currently developing the motors for Pheonix 1, along with a new and currently unnamed propellent.

More information about the contributions of the solid propulsion team on Pheonix can be found here.



Combustion Chronicles

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September 7, 2017

September 14, 2017

December 4, 2017

 

 

 

 

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The Prop Bible (Prible)

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A collection of vast knowledge accumulated by propulsion over the years:

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Subteam Leads

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Year

Lead
Fall 2014 - Summer 2015Matt V.
Fall 2015 - Summer 2017Zach B.
Fall 2017 - Summer 2018Sam A.
Fall 2018 - Summer 2019Ethan S.

Fall 2019

Vittorio C.

Fall 2019Charlie G.
Spring 2020 - Summer 2020Julia G.
Fall 2020 - Spring 2021David v.W.
Summer 2021 - Spring 2022Justin S.
Summer 2022 - PresentJorian B.

 

Current Project

Propulsion is currently developing the motors for Pheonix 1, along with a new and currently unnamed propellent.

More information about the contributions of the solid propulsion team on Pheonix can be found here.

Combustion Chronicles

September 7, 2017

September 14, 2017

December 4, 2017

Propellant Formulas

NameDescriptionUsedStatus
Xaphan BlueThe team's first propellant.Spring 2017Static Fired
Ocean WaterDeveloped during the Fall 2017 semester to replace XB. Focused on performance rather than appearance.Fall 2017 - Summer 2018Characterized, Static Fired, Flown
Cherry LimeadeDesigned by applying the knowledge we gained from OW. It is a slower burning, a higher-performing propellant that is as pourable as OW.Fall 2018 - Fall 2019Characterized, Static Fired, Flown.
KickstartMinor modifications to CL that we hope will make it more appropriate for the production of large-scale monolithic motors.Spring 2019 - Fall 2019Characterized, Static Fired.
Angry Goat  Additional modifications to increase pourability and decrease burn rate, while still maintaining high ISP and reduced slag with a higher Al contentFall 2022 - PresentCharacterized, Static Fired, Flown.

 

 

 

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