National Experimental Rocket Organization, Inc.




1.1 To establish an organization that will promote the development and advancement of experimental rocket propulsion technology.

1.2 To establish procedures for the safe and legal design, fabrication, testing and launching of such rocket vehicles.

1.3 Establish a technical report library for access for qualified members.

1.4 To establish an organization to network and unify all forms of the hobby, amateur, experimental and private space rockets.

1.5 To provide a goal and direction for the advance user of model rockets and high power rockets.

1.6 To provide the tools of education and technology to young minds as an incentive to pursue careers in Aero / Astro engineering.

1.7 To apply procedures to encourage research through experimentation.



 2.1 Through the use of seminars, demonstrations, hands on training sessions, invitational launches, reports and videos, train members in the safe practices of rocket propulsion technologies. These learning experiences should be taught by industry, Academia, Entrepreneurs, and Technical Experts.

2.2 Document to significant events, technologies and projects with their team members names for history, giving credit as building blocks of technology. To establish a continually growing data base from which others might benefit without having to reinvent key technologies. Everyone can contribute something.

2.3 Develop, document and standardize key technologies for use as "off the shelf" hardware. Such as propellants, formulas, motor casing/nozzle designs, combustion chambers, tankage, valve technologies, pressurization systems, using commonly available supplies along with their sources.

2.4 Develop design packs of proven motor designs for new members to demonstrate their fabrication abilities. Establish NERO approved experimental motor designs with large safety margins using approved propellant formulations for use by novice members.

2.5 To pool together resources, personnel and technologies, to build larger projects not capable by and individual or small groups.

2.6 To explore outerspace and keep the dream of space travel alive.



3.1 Because of the different technical requirement for the various propulsion systems there should be three add-on RATINGS. There is no requirement to take the ratings in any order.

3.1.1 SOLID RATING which includes solid propellants utilizing , but not limited to these oxidizers: Ammonium Perchlorate, Potassium Perchlorate, Ammonium Nitrate, Potassium Nitrate.

3.1.2 HYBRID RATING which included Cold Power and Steam Power

3.1.3 LIQUID RATING which included Bi-Propellants, Hypergolics, Mono-Propellants

3.1.4 UNLIMITED RATING (optional) Expert rating in all three of the previous ratings, considered a "master rocket scientist" and Permanent Technical Committee Member or Advisor, etc . Awarded by NERO BOD only.

3.2 There should only be two LEVELS for each rating to show experience

3.2.1 NOVICE certifies holder can fabricate and fly a NERO approved experimental motor.

3.2.2 EXPERT certifies holder can design his own motor and formulate his own propellant and currently hold a novice level for that rating.

3.3 Certification procedures

3.3.1 You need a sponsor with an appropriate rating who will be responsible for the proper safety training of the applicant.

3.3.2 You need two additional signatures from the NERO Board of Advisors, who can verify applicants competency at the rating applied for. This is done in conjunction with your sponsor.

3.3.3 Satisfactorily completing one or more safety courses by your sponsor or others of that rating.

3.3.4 An oral test of knowledge by your sponsor and other signatures.

3.3.5 Pass a written test for that rating.

3.3.6 Demonstrate your understanding by successful firing or flight of a motor of the rating applied for. Complicated systems may not require flights, at the sponsor discretion.

3.4 You must have a current advanced certification for that power level before going for your Experimental ratings.



4.1 Because of the familiarity, simplicity and low cost, solids will most likely be the first rating most people attempt. As a result there should be multiple size requirements of the solids. This is to encourage a methodical approach to motor design, one step then the other, no giant leaps.

4.1.1"Novice 29" First build and successfully fly a 29mm motor.

4.1.2"Novice 38" Second build and successfully fly a 38mm motor

4.1.3 "Novice 54" Third build and successfully fly a 54mm motor

4.1.4"Novice 98" Fifth build and successfully fly a 98mm motor

4.1.5 A "SOLID NOVICE 98" allows you to fly any 98mm or smaller solid motors using preapproved motor designs and propellants.

4.2 Novice level requires the use of NERO approved motor casing designs and characterizes propellants.

4.3 Novice level requires the successful completion of the previous motor size before attempting the next size. May not do them all in one day.

4.4 Novice may apply for Expert Rating for any size level he is now qualified.

4.5 Expert level requires the Sponsor to review the applicants own motor design and propellant formulation.

4.6 Expert size requirements have been limited to two sizes

4.6.1 "Expert 54" First build and successfully fly a 54mm motor

4.6.2 "Expert 98" Second build and successfully fly a 98mm motor

4.6.3 A "SOLID EXPERT 98" rating allows you to design, formulate and fly any size solid motor you like.

4.7 Solid propellants by their premixed oxidizer/fuel nature will require an additional set of safety concerns such as the issues of propellant mixing and casting safety. Through the use of seminars and experimental launches, it is hoped that a portable launch site manufactured mixing, casting and curing system can be developed to ease the concerns of transportation and storage of bulk quantities of propellant. A system where groups of people mix on Saturday & fly on Sunday would make it feasible to build a very large solid motor safely.



5.1 Hybrids by their nature are relatively simple and very safe, the only real issues are in the valve design and pressure tank designs. As a result both Cold & Steam powered rockets are included in this group because of common safety concerns.

5.2 Because Hybrids are new to the rocket scene it may be difficult to break down hybrids into many more sizes than three. As the experience level grows it may be necessary to change this.

5.2.1 "Novice 54" rating requires building and successfully recovering a 54mm motor from plans or their own design.

5.2.2 "Novice 98" rating requires building and successfully static test a 98mm motor of their own design.

5.2.3 "Expert 98" rating requires building and successfully recovering a 98mm motor of their own design.

5.2.4 A "HYBRID EXPERT 98" rating allows you to design & fly any hybrid you like.



 6.1 Liquid motors by their nature are complex in both design & flight, the issues of some concern are the handling and storage of the liquid oxidizers, either cryogenic or hypergolic. There is also some concern because of the explosive potential of those propellants. Mono-propellant motors also fall in this category.

6.2 Because of the limited experience using liquids it was thought best to break these into two groups, and take it case by case.

6.2.1 "NOVICE" rating requires building and successfully static test a liquid motor from plans or their own design.

6.2.2 "EXPERT" rating requires building and successfully recovering a liquid motor from plans of their own design.

6.2.3 "LIQUID EXPERT" rating allows you to design and fly any liquid rocket you like.

7.0 DOCUMENTATION 7.1 It is hoped that project members will write reports to discuss their project goals, lessons learned and hand down the technology to new members and the NERO technical library.



8.1 All launch site must have a safety checkout and NERO BOA approval

8.2 Land owners permission prior to BOA approval required.

8.3 Launch site must be of sufficient size for motors to be flown.

8.4 Launch must be designated for Experimental rockets or Launch Director must be notified within two weeks prior to launch of your intentions.

8.5 Launch Director Requirements

8.5.1 The Launch Director is held accountable by the community for the safety and personnel and property of the surrounding areas at his field, as such is given UNCHALLENGED AUTHORITY to approve or disapprove any flight or static test.

8.5.2 The Launch Director may request the following information: Static Test: Expected thrust, burn time, chamber pressure, oxidizer, fuel & any unusual safety requirements. Flight: Expected altitude, CG, CP & proof of successful static test in the form of video tape, accredited eye witnesses, ground firing at the launch, thrust trace.

8.6 An understanding by the designers and builder of the rocket or motor, that they are PRIMARILY responsible for damages caused by their rocket flight or static test at any launch or firing.

8.7 Spectator distances requirements are the same as Tripoli rules for that motor size. Rockets that exceed 5 mile altitude require a minimum safe distance of 1/2 mile without protection, 1500 ft. with protection.



9.1 Flight of an Experimental vehicle without a successful motor static test.

9.2 Mixing propellants with the intent of explosion.

9.3 Dry blended propellants which because of surface area could result in an explosion during blending or loading.

9.3.1 Zinc-Sulfur

9.3.2 Black Powder

9.4 Oxidizer or Fuels that are extreme toxic hazards.

9.4.1 Fluorine

9.4.2 Nitrogen Tetroxide

9.4.3 Hydrazine



 10.1 Each NERO member who wishes to take part in motor design and fabrication must be responsible for complying with any and all Federal, State and Local Laws and regulations pertaining to the fabrication and production, storage and testing of any experimental motor, propellant or chemicals.

10.2 Each NERO member who wishes to take part in motor design and fabrication must sign a statement that he or she will be responsible for their own actions and will not under any circumstances hold National Experimental Rocket Organization, Inc. Officers, Board of Directors or Board of Advisors responsible for any damages or injuries resulting from this activity.

   Copyright NERO, Inc. May 7, 1997