RocketReviews.com - Photos for the Tip 'Adding Altimeter Payload for Low Power Rockets'

Photos for the Tip "Adding Altimeter Payload for Low Power Rockets"

These pictures are intended to illustrate the Tip that describes my method of adding an Electronics/Altimeter Bay to low-powered rockets. This article is geared specifically for the Jolly Logic Altimeter One/Two, which is small enough to fit into a BT-20 body tube and light enough to be hoisted by a 1/2A motor or even T-motors (13mm).

Close view of a single static vent hole in a BT-20 payload tube on the Estes Aero-Hi

Adding a small strip of ribbon makes it easy to remove padding from bulkhead.

Reading the maximum speed from the previous flight, measured by tiny accelerometers in the Altimeter Two.

Reading the apogee altitude of the last flight from the altimeter

Forming a small wire into a "sewing needle" to pull Kevlar through the small hole in the plywood bulkhead.

Altimeter in padding. The small gap between PCB tab and plastic case needs "fresh air".

Altimeter Two being inserted into padding made from a stack of cut disks

"Exploded" view of altimeter bay showing arrangement of parts. Note no padding covers static vent holes.

A complete altimeter payload bay added to the nose cone of an Estes Big Bertha

Kevlar loop replaces steel screw-eye in a Paper/Wood bulkhead

Inside a Paper/Wood bulkhead showing glued Kevlar knot

Balsa vs. Paper/Wood bulkheads for BT-20 tubes. Masking tape is used for a snug fit.

Clips attached to Kevlar loop and each other so failure of any component leaves other two connected

Padding cut to fit an Altimeter in a BT-60 body tube

An altimeter being inserted into a padded cradle in the Nike-X bulkhead

Estes Big Bertha launches an Altimeter Two in a payload bay

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