Guidance systems
03-04-2009, 07:17 PM
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Guidance systems
Not as illegal as they seem. I have a basic stamp that needs a home. I was thinging of putting a sun seeker or a gyroscopic system in a high power rocket.
A few questions though...
1) R/C helecopters use gyroscopic systems, are any of these capable of going in a rocket for a high G flight?
2) Servos, I will be using servos in a 2 inch wide tube to spin small fins, the rocket will be capable of going mach, do I need heavy duty servos or are normal just fine?
3) Sun guidance- the tower hobbies Nextar has a sun tracking system in it right? Are there any others?
A few questions though...
1) R/C helecopters use gyroscopic systems, are any of these capable of going in a rocket for a high G flight?
2) Servos, I will be using servos in a 2 inch wide tube to spin small fins, the rocket will be capable of going mach, do I need heavy duty servos or are normal just fine?
3) Sun guidance- the tower hobbies Nextar has a sun tracking system in it right? Are there any others?
03-09-2009, 03:11 PM
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RE: Guidance systems
Both types of systems have been built and flown in HPR, do a Google search and/or on TRF forums to find some fairly detailed links showing a few sensor technologies and canard (steering fin) setups that have been tried, some using PIC processors, others have used simple closed feedback loop systems using R/C (heading lock) gyros and standard servos.
BTW - "Guidance" is the wrong term - "Stabilization system" would be more appropriate. Guidance to a specified target or location is illegal and will likely get you more official attention than you'll want.
Have fun, lots of challenges but nothing that can't be overcome with informed R&D and development. Don't be surprised at the effort required to design a fin-based steering system that survive going through the trans-sonic regime....it's also a lot harder to exceed and/or sustain Mach+ flight using off the shelf motors that can loft the airframe size required and launch weight of a stabilization system.
Let us know how it works out!
Barry
BTW - "Guidance" is the wrong term - "Stabilization system" would be more appropriate. Guidance to a specified target or location is illegal and will likely get you more official attention than you'll want.
Have fun, lots of challenges but nothing that can't be overcome with informed R&D and development. Don't be surprised at the effort required to design a fin-based steering system that survive going through the trans-sonic regime....it's also a lot harder to exceed and/or sustain Mach+ flight using off the shelf motors that can loft the airframe size required and launch weight of a stabilization system.
Let us know how it works out!
Barry
09-07-2010, 10:29 PM
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RE: Guidance systems
Have fun, lots of challenges but nothing that can't be overcome with informed R&D and development. Don't be surprised at the effort required to design a fin-based steering system that survive going through the trans-sonic regime....it's also louis vuitton handbags a lot harder to exceed and/or sustain Mach+ flight using off the shelf motors that can loft the airframe size required and launch weight of a stabilization system.
