Modification - Silver Bullpup

Modification - Silver Bullpup -Undefined-

Modification Silver Bullpup By Larry Brand
For completion of her NARTREK Sliver cluster flight requirement, I suggested to my wife that we rebuild the stock 18mm engine Estes Bullpup with a cluster of four 13mm A3-4T motors. She had already built one Big Bertha and didn't feel like building another 3-motor version (Astron Ranger) that NAR recommends for this task. So we tried this. The stock Estes Bullpup kit was built according to ...