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Mostlymotor
               Rocksim drawing

        Mmdwg.jpg (24873 bytes)

 Grandfather & Tyler built Mostlymotor to try for the J-impulse altitude record.  It will use a J570 motor and weighs a tad over 3 lbs. loaded. It has really small fins, It's going to go really fast and if it doesn't wobble on the way out, it should go over 18,000'.        Mmpic.jpg (82760 bytes)

 

Mostlymotor is a minimum diameter fiberglass rocket. It has an outer layer of polyester that is polished to a very smooth finish. It will fly with an AltAcc2C with main deployment only. We will be using our Rocket Hunter to help find this one because it's going to be up in the air a long time.

                 Rocksim flight graph

                                                                                          Mmgraph.jpg (40416 bytes)

           Mostlymotor being built

        Mmdis.jpg (107541 bytes)
           Nose cone with AltAcc2C

          Mmnosecone.jpg (123226 bytes)

 Mostlymotor is stable, but with only a 1.1 caliber margin. This will be our first flight from a tower and we may try to fly it at Mudrock.
 

Tyler and Grandfather are working on a small rocket for a change. They built a minimum diameter, 38mm fiberglass body with real small fins. The fiberglass is skinned over with gel-coat and polished to a micron finish. If it goes straight, it'll hit Mach I in .4 seconds at 250' and Mach II in less than 1 second at 1,000'. In other words, don't watch the launch pad or you'll miss this one. We'll definitely be flying our Rocket Hunter on this flight. We hope to fly this one from a Giant Leap 4' tower at Black Rock.