All product pricing is available to individuals and TRA or NAR members only. For commercial orders or large quantity orders please contact us for a quote.

Attention 6/10/26

All orders for in stock items may have a 4 - 8 week delay. We are working through them as fast as we can but our work load has been tremendous. We are sorry for this delay.

 Know what you are buying is the best and not just a best buy.

All Loki Research standard motor cases are CNC machined by highly skilled American machinists

to the highest standards of quality. We start with the highest quality 6061-T6 DOM tubing available today.

Seamless Drawn Over Mandrel (DOM) Tubing direct from ARCONIC

Designed to fit standard hobby airframe and motor mount dimensions with the best dimensional tolerances offered by ARCONIC.

- 38mm - 1.334" ID +/-0.005" IR x .083" Wall +/-0.004" IR x 1.500" OD (REF)                         

     - 54mm -1.939”ID +/-0.006” IR x 0.094” Wall +/-0.005” IR x 2.127” OD (REF)                              

     - 76mm -2.753” ID +/-0.007” IR x 0.116” Wall +/-0.006” IR x 2.985” OD (REF)                              

IR, or Individual Reading means tolerance measurements are taken at 3-5 locations and all readings must be within the stated +/- tolerance. IR tolerances provide much higher dimensional quality and concentricity than standard average mean tolerance readings of our competitors extruded and DOM tubing. Since Loki Research tubing is called out by the ID and Wall dimensions, we have a known, guaranteed tolerance for the ID where our phenolic liners and other internal components must properly fit, all without additional machining. If and when damage to the case occurs, it is much easier to get re-machined into a usable but shorter motor case.

Standard tolerances for COTS tubing (both DOM and extruded) use the average of a few measurement readings taken per location ,which means some locations may be on the outside of the tolerance on the low side and other readings may be outside of tolerance on the high side while their averages stay within the tolerance. Standard Extruded tubing tolerances are normally at least double the tolerance that standard Drawn tubing is. The larger tolerance of Extruded tubing is the very reason why we discontinued the old school 98mm Loki snap-ring hardware line.  So what does this mean?

This can mean a tube with an out of round ID and an OD that is not concentric to the ID. Standard COTS tubing is also called out by OD and Wall, not ID and Wall.  That means the ID has no guaranteed tolerance and is basically the worst of the OD and wall tolerances put together. This can produce an extremely unbalanced tube and can cause severe coning issues in minimum diameter and/or high speed rocket flights.  When a machinist turns down the OD of a motor case, they are holding onto an ID that isn`t very well centered.  The OD then wabbles all around the center-line axis until enough material is removed to true up the roundness of the OD. As a result, the wall thickness can be very unbalanced with an ID straightness of a banana. You can`t measure it without cutting the motor case in half, where it is normally the worst, but you can put the motor case on a level surface and see how quickly it rolls to one side only, the thicker side.

This is why we don`t use standard drawn tubing, much less extruded tubing. We use very specific drawn tubing for the highest quality rocket motor cases we can produce. Onlinemetals has a great resource for standard tubing tolerances and many others here. CLICK HERE

The Loki Research hardware shown below is Hardcoat Anodized in Type 3, Class 2 Blue. We are transitioning over to Type 2, Class Blue, Bright-Dip anodize on all hardware with laser etching on the motor cases.

Shown below with the Experimental Class 152/50,000Ns complete motor hardware.

Rocket Motors are safe & predictable only when properly used by responsible persons.

Responsible persons placing orders for High Power Reload Kits require a photo or copy of your NAR or TRA Membership card, School, University or Government agency credentials and a Photo ID.

At this time these items will need to be emailed to scott(at)lokiresearch(DOT)com.   

I will work with the webmaster to incorporate a file attachment at the time of checkout in the future.  

All Loki Research Dealers will be asked to obtain this information from responsible persons as well.

Thank you for your cooperation. 

All Loki Research hardware can be used for Experimental (EX) use for making your own propellant and reloads.
All Loki Research reloads are certified for use at both TRA and NAR launches. When you see hardware listed that does not say EX, that means there is a commercial reload available for it.

When you see a Loki Research case or complete motor that is designated as "EX or Experimental", this means that the hardware does not have any commercial reloads made for it and is intended for experimental use only. 

 UPDATED ON 1/12/21