Aspire space
aspirespace.org.uk
Parachute recovery system design for large rocket vehicles: updated 25/7/2020 Development and Preliminary Testing of Paraffin Hybrid Rocket Fuel Grains with Helical Port Structures The merit of sharp edges: sharp edges on rocket vehicles 1/7/2017 The thrust optimised parabolic nozzle: how to plot a bell nozzle updated 18/4/2017 Rocket airframe concepts:17/12/2016 Rocketry aerodynamics: updated 26/6/2016 Winged rockets and boost gliders: updated 26/6/2016 Rocket vehicle loads and airframe design: updated and clarified 1/6/2016 Introduction to hybrid design: updated 6/1/2016 Manned suborbital spacecraft missions: (includes Suborbital re-entry and Launching spaceplanes from a winged carrier aircraft) 23/3/2015 Hybrid safety: greatly updated (70 pages, now includes table of contents and Lox, nitrous, and peroxide) 6/1/2015 Rockoon balloon calculation Excel spreadsheet: 23/7/2013 Launching rockets from a high altitude balloon: updated 2/3/2012 Modelling the nitrous run tank emptying: code updated 3/1/2012 The physics of nitrous oxide: updated 8/7/2011 A dynamic stability rocket vehicle simulator: updated 6/6/2011 Mass properties of a hybrid's liquid propellant: 4/11/2010 Hybrid effects on stability: ammended 4/11/2010 (error in formula ammended) Supersonics and Waveriding: updated 5/11/2007 Area-ruling, lowering rocket drag: updated 10/5/2007
Richard Nakka
General
Safety Precautions d'usage
Photo Galleries of My Early Rocketry Work, Years 1972-1986
Rocket Video Clips
Who is Richard Nakka?
How I Got Started in Rocketry How I Got Started in Rocketry -- PDF format)
Early Rocketry Experiments QUICK LOADING VERSION
Rocketry related Technical References Jun. 16/20
Rocketry software Apr.30/20
Links to Other Rocketry Resources Mar.13/20
Sneak Preview Jul. 22/19
Lecture on Rocketry Presented in Luleå, Sweden
The Art and Science of Rocketry Photography
Lecture Notes - Presentation to University of Reykjavik, Iceland, May 2008
Motors
Impulser Rocket Motor ("I" Class) May 12/20
A-100M Rocket Motor ("G" Class) Moteur de Fusée d'A-100M
B-200 Rocket Motor ("H" Class)
C-400 Rocket Motor ("I" Class)
A-100 Rocket Motor ("G" Class)
Kappa Rocket Motor ("K" class)
Juno Rocket Motor ("J" class) -- Preliminary Design
Lambda Rocket Motor ("L" class) -- Preliminary Design
Juno Rocket Motor -- Static Test JDX-001 Report
Lambda Rocket Motor -- Static Test LDX-001 Report
PVC Rocket Motors -- Introduction and Performance ("G", "H", & "I" motors)
PVC Rocket Motors -- Design
PVC Rocket Motors --Tools
PVC Rocket Motors --Construction
PVC Rocket Motors -- Igniters, Mounts & Conclusion
PVC Rocket Motors -- Introduction & Performance ("J/K" Class motors)
PVC Rocket Motors - Tools,Construction & Conclusion ("J/K" Class motors)
K1000 PVC Rocket Motor
F70 PVC Rocket Motor
Kappa ("K" class) rocket motor -- preliminary design
Kappa-DX rocket motor -- Static Test KDX-001 Report
Kappa-DX rocket motor -- Static Test KDX-002 Report
Kappa-SB rocket motor -- Static Test KSB-001 Report
Kappa-SB rocket motor -- Static Test KSB-002 Report
Epoch rocket motor ("I" Class composite)
Paradigm rocket motor ("J" Class composite)
Calculation of Total and Specific Impulse from Test Data
Igniter Systems July 8/20
Nitrate-based igniters for composite propellant
Case-bonding of a High-Modulus Propellant Grain
Thermal Protection for Rocket Motor Casings
Rocket Motor Design Charts -- Chamber Pressure
Thermal Ablative Experimentation
Machining of Rocket Nozzles
Reinforcement Method for PVC Motor Casings
Thermite Experiments
Propellants
Amateur Experimental Solid Propellants July 23/20
The Potassium Nitrate/Sucrose Propellant (KNSU)
The Potassium Nitrate/Dextrose Propellant (KNDX)
The Potassium Nitrate/Sorbitol Propellant (KNSB)
KNSU Propellant Chemistry and Performance Characteristics
KNDX Propellant Chemistry and Performance Characteristics
KNSB Propellant Chemistry and Performance Characteristics
The Potassium Nitrate/Epoxy Composite Propellant (RNX)
Propellant Casting and Grain Preparation for the A-100M Motor
INERT Propellant
Propellant Burn Rate
Burn Rate Determination from Static Test Pressure Measurement Aug. 24/20
Strand Burner for Burn Rate Measurements
KN-Dextrose & KN-Sorbitol Propellants -- Burn Rate Experimentation
Effect of Potassium Nitrate Grade on Propellant Performance
The KN-Sucrose Propellant -- A Historical Look Back
Problems relating to the casting of sleeve-bonded propellant segments
for the Kappa-DX rocket motor Static Test KDX-001
Propellant Igniteability Experiment
Propellant Inhibitor Experiment
Experiments with Potassium Nitrate - Epoxy Formulations
Burn Characteristics of Sorbitol Based Propellants
Experiments with Oxides and other possible Burn Rate Modifiers
Synthesis of Potassium Nitrate from Other Chemicals
Purification of Low-grade Potassium Nitrate
Experiments with Ammonium Nitrate / Aluminum based Propellant Formulations Sep. 15/19 Spanish translation
Development of a Metalized Ammonium Nitrate-based Propellant
Harvesting Aluminum Powder from Paint
Testing
Rocket Motor Static Testing May 14/20
Measuring Chamber Pressure and Determining C-Star and Thrust Coefficient May 26/20
STS-5000 Static Test Stand May 25/20
Hydraulic Load Cell for Thrust measurement
Strain Gage Load Cell for Thrust measurement
Mounting Strain Gages on a Loadcell
Strain Gages available to purchase
Pressure Transformer
Rockets
Xi Series of Rocket Flights Jun. 29/20
Zeta Series of Rocket Flights
DS Series of Rocket Flights
Launch Report -Frostfire 3 Rocket
Launch Report -SkyDart Rocket, Flight SD-1
Launch Report -SkyDart Rocket, Flight SD-2
Launch Report -SkyDart Rocket, Flight SD-3
Launch Report -Frostfire Two Rocket
Launch Report -Zephyr Rocket, Flight Ze-1
Launch Report -Zephyr Rocket, Flight Ze-2
Launch Report -Zephyr Rocket, Flight Ze-3
Boreas 1 Rocket
Launch Report -- Epoch Rocket Motor (unofficial) Inaugural Flight
Launch Report - Boreas 1 Inaugural Flight
Launch Report - Boreas 1, Flight #2
Launch Report - Boreas 1, Flight #3
Launch Report - Boreas 1, Flight #4
Launch Report - Boreas 1, Flight #5
Launch Report - Frostfire One
Cirrus Project
Cirrus One Launch Report
Cirrus TV-1 Launch Report
Launch Report - Chuck Knight's Photo1 Rocket
Rocket Construction
Fins for Rocket Stability
Construction of a Rocket Body using sheet aluminum
Rocket Body Structural Strength
Launch Support System
Launch Controller Circuit
Radio Transmitter
EMT Tripod Rocket Launcher
Simplified Method for Estimating the Flight Performance of a Rocket
Smoke Tracking Sept. 25/19
Altimeter Correction to Account for Launch Site Temperature
Launch Wagon Description
Recovery system
DS Rocket Recovery System Description
Rocket Parachute Ejection System -- Zephyr, Boreas and Frostfire series (schematic)
Rocket Recovery System Timer
Air-Speed Triggering System for Parachute Deployment
Rocket Altimeter System
Parachute Design and Construction Mar. 6/20
Parts List (parachute construction)
Parachute Structural and Drag Testing
Cross Parachute Construction
Construction of a 1 metre Cross Parachute
Crimson Powder for Parachute Ejection Charge
Pyrogen - Delay Ejection Device (Pyro-DED)
Theory
Introduction to Solid Rocket Motor Theory
Basic Assumptions
Propellant Grain
Propellant Combustion
Nozzle Theory
Motor Thrust
Motor Impulse
Chamber Pressure
Two-Phase Flow
Corrections for Actual Rocket Motors
GUIPEP Propellant Performance Software
Theory Appendices
Solid Rocket Motor Theory webpages in PDF format
Teoría Sobre Motores Cohete De propelente Sólido (Spanish Translation)
Teoria de motor-foguete sólido (Portugese Translation)
Théorie des moteurs de fusée à propulseur solide (French Translation)
Fundamentos de propulsão sólida de foguetes (Portugese) 10 Mbyte
Derivation of Selected Rocket Equations
Miscellaneous
Construction of a Balance Scale for precision weighing
Experimental Reports
Technical Notepad #1 -- KNSU Ideal Performance Calculations
Technical Notepad #2 -- KNDX Ideal Performance Calculations
Technical Notepad #3 -- KNSB Ideal Performance Calculations
Technical Notepad #4 - Convective Heat Transfer Coefficient Calculation
Technical Notepad #5 -- KNER Ideal Performance Calculations
Technical Notepad #6 -- A24 Ideal Performance Calculations
Technical Notepad #7 -- RNX-71V Ideal Performance Calculations
Technical Notepad #8 -- RNX-57 Ideal Performance Calculations
Technical Notepad #9 -- KNPSB Ideal Performance Calculations
Downloads
Spanish translation of several articles featured on my website
Arabic translation of Solid Propellant Rocket Motor Design and Testing by R.Nakka (translation by Mohamed Elaouni)(PDF format)
Links to over 100 NASA Space Vehicle Design (SP8000) Reports
Links to Selected STINET Reports
Moonwalk Audio Recording and TV Screen Photos
