Beach Shoot #5 - Ground Spinner

Date: 2003-10-21


Case was 5 mm ID, 10 mm OD, PVA pasted A4 80 gsm photocopier paper. End plugs of paper wadding and hot-melt glue. Nozzle holes 2.5 mm. One vent hole to produce rotation, one near the 2/3rds point for lift.

A paddle-pop stick for a stabliser bent up at the ends by steaming, but held more permanently using some cotton string and a bamboo stick to twist it tight. A small dob of hot-melt glue was used to give it a bearing point.

Fused with blackmatch glued in place with a little meal-NC paste. Composition of my modified blackpowder rocket propellant.


Spun well.

Insufficient thrust to get up to a good rate of spinning or to lift it off the ground towards the end of the burn. In fact once the 2nd nozzle hole became active the rotation rate dropped quite a bit.

Left a nice circular burn mark, the spin was quite stable.

Holes enlarged quite a bit, case was pretty average, it was the last of its batch. I've been using manilla folder cardboard for my tubes of late, with an over-wrapping of 80gsm A4 to hold them tight as they dry, which looks great and works very well.


title type size
Burn Video video/x-msvideo 2.723 Mbytes
Pre-Test Picture image/jpeg 36.640 kbytes
Post-Mortem Picture image/jpeg 22.781 kbytes
Burn Mark image/jpeg 59.408 kbytes