mannyskid
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- Feb 2, 2011
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Outdated: See post #12
Overview:
To preface this post, I want to say that this thread is going to be more of a diary than a build thread in order for me to keep my head straight on this project. Tentatively I plan on flying this rocket at Aeronaut next year, August 2015. Some of you may have read my last build thread on my 3” minimum diameter rocket “Torn Between Scylla and Charybdis”. (https://www.rocketryforum.com/showthread.php?60703-Torn-Between-Scylla-and-Charybdis) That rocket is my current personal altitude/speed record with an apogee of 41,800’ and max speed of M3.2. I have been thinking about what I can do to further challenge myself, and the next logical step would be to do a similar rocket but in a 98mm minimum diameter. This build will be sharing many of the same design philosophies, while introducing new, more challenging aspects to the project.
Etymology:
When naming rockets, I like the name to have some meaning related to the project. My last project was in reference to the two rocket of vastly different construction techniques that I had built. This year, it’s a bit different. Every once in a while, you meet a person who is so interesting that you will never forget them. This past August at Aeronaut, Alex (aksrocket), Bryce (Bandman444) and I were standing outside of Bruno’s country club having a chat about new missile works products. While talking about the avionics, an older, scruffy looking man came strolling over to us and asked “Sleds, altimeters….what are you guys talking about over here?”. The first thing that I had noticed about him were his glorious mutton chops. It was quickly discernible from his appearance and the way he spoke that he was in town to attend the annual burning man festival. We talked to him for a while about our rockets, which he thought were the coolest thing ever, and we listened to him talk about shooting anvils into the sky with BP. When talking about rockets, he gave what is now my favorite description of high powered rockets “They’re like muskets….of the future!”. There in lies where the name “Musket Chops” came from. This guy was so awesome, I just had to name a rocket after him, and so that’s why this rocket will be called what it is.
Basic Design Principles:
I am currently in the very early stages of designing this rocket right now, but I have a general idea of what I want to do. This rocket will be built mostly from the ground up. I have decided that this is going to fly on an experimental motor with home made propellant and a home made motor case. I haven’t decided yet if the fins are going to be made out of carbon or aluminum yet, but either was, they will be bolted directly to the motor case.
Like my last project, this will be a multi-phase build. Unlike the last project, instead of a 2 phase build this will now be a 4 phase build.
Phase 1 - Recovery: First, I will build a 4” diameter fiberglass rocket with a 75mm motor mount and will set the recovery up similar to TBS&C with Wildman’s HEDD end dual deploy. I took my HAM radio technicians exam this past weekend and passed (yet my call sign isn’t in the ULS yet), and this rocket will serve as a way for me to practice using the AIM XTRA system.
Phase 2 - Propellant: A large portion of this project will be in the manufacturing of the propellant. I haven’t decided on what formula I’m going to use just yet, but it will be a standard propellant with moderately high performance. In the recent Tru-Core sale, I purchased a 98-6GXL snap ring case that I will practice with. The first will be to make a tiger tail motor for it first to get acquainted making 98mm motors, then I will start toying around with turning knobs and dialing in the performance. I will be detailing this end of the rocket in the research forum when that time comes.
Phase 3 - Motor Case: The current plan is to manufacture my own motor case. I have found some reasonably priced 3” and 4” diameter 6061-T6 aluminum tube that will fit the nozzles and bulkheads I already have, while being thinner and lighter. I haven’t quite decided how I will manufacture it. I will be detailing this end of the rocket in the research forum when that time comes.
Phase 4 - Structure/ full systems integration: The last phase is putting it all together and making it work at Black Rock. This part of the project is a very long way off, but I still need to keep it on my radar when it comes to manufacturing the case/propellant. I am currently thinking that I want to bolt the fins directly to the motor case and put an aerodynamic fillet over it, but I’m not sure.
In the upcoming months, I will be working on getting a fin design made and doing other general design work. This will be a slow moving build thread as was my last, it will be almost a year before this rocket flies but there will be other action between now and then.
Manny
Overview:
To preface this post, I want to say that this thread is going to be more of a diary than a build thread in order for me to keep my head straight on this project. Tentatively I plan on flying this rocket at Aeronaut next year, August 2015. Some of you may have read my last build thread on my 3” minimum diameter rocket “Torn Between Scylla and Charybdis”. (https://www.rocketryforum.com/showthread.php?60703-Torn-Between-Scylla-and-Charybdis) That rocket is my current personal altitude/speed record with an apogee of 41,800’ and max speed of M3.2. I have been thinking about what I can do to further challenge myself, and the next logical step would be to do a similar rocket but in a 98mm minimum diameter. This build will be sharing many of the same design philosophies, while introducing new, more challenging aspects to the project.
Etymology:
When naming rockets, I like the name to have some meaning related to the project. My last project was in reference to the two rocket of vastly different construction techniques that I had built. This year, it’s a bit different. Every once in a while, you meet a person who is so interesting that you will never forget them. This past August at Aeronaut, Alex (aksrocket), Bryce (Bandman444) and I were standing outside of Bruno’s country club having a chat about new missile works products. While talking about the avionics, an older, scruffy looking man came strolling over to us and asked “Sleds, altimeters….what are you guys talking about over here?”. The first thing that I had noticed about him were his glorious mutton chops. It was quickly discernible from his appearance and the way he spoke that he was in town to attend the annual burning man festival. We talked to him for a while about our rockets, which he thought were the coolest thing ever, and we listened to him talk about shooting anvils into the sky with BP. When talking about rockets, he gave what is now my favorite description of high powered rockets “They’re like muskets….of the future!”. There in lies where the name “Musket Chops” came from. This guy was so awesome, I just had to name a rocket after him, and so that’s why this rocket will be called what it is.
Basic Design Principles:
I am currently in the very early stages of designing this rocket right now, but I have a general idea of what I want to do. This rocket will be built mostly from the ground up. I have decided that this is going to fly on an experimental motor with home made propellant and a home made motor case. I haven’t decided yet if the fins are going to be made out of carbon or aluminum yet, but either was, they will be bolted directly to the motor case.
Like my last project, this will be a multi-phase build. Unlike the last project, instead of a 2 phase build this will now be a 4 phase build.
Phase 1 - Recovery: First, I will build a 4” diameter fiberglass rocket with a 75mm motor mount and will set the recovery up similar to TBS&C with Wildman’s HEDD end dual deploy. I took my HAM radio technicians exam this past weekend and passed (yet my call sign isn’t in the ULS yet), and this rocket will serve as a way for me to practice using the AIM XTRA system.
Phase 2 - Propellant: A large portion of this project will be in the manufacturing of the propellant. I haven’t decided on what formula I’m going to use just yet, but it will be a standard propellant with moderately high performance. In the recent Tru-Core sale, I purchased a 98-6GXL snap ring case that I will practice with. The first will be to make a tiger tail motor for it first to get acquainted making 98mm motors, then I will start toying around with turning knobs and dialing in the performance. I will be detailing this end of the rocket in the research forum when that time comes.
Phase 3 - Motor Case: The current plan is to manufacture my own motor case. I have found some reasonably priced 3” and 4” diameter 6061-T6 aluminum tube that will fit the nozzles and bulkheads I already have, while being thinner and lighter. I haven’t quite decided how I will manufacture it. I will be detailing this end of the rocket in the research forum when that time comes.
Phase 4 - Structure/ full systems integration: The last phase is putting it all together and making it work at Black Rock. This part of the project is a very long way off, but I still need to keep it on my radar when it comes to manufacturing the case/propellant. I am currently thinking that I want to bolt the fins directly to the motor case and put an aerodynamic fillet over it, but I’m not sure.
In the upcoming months, I will be working on getting a fin design made and doing other general design work. This will be a slow moving build thread as was my last, it will be almost a year before this rocket flies but there will be other action between now and then.
Manny
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