38mm Components

A note about 38mm bay design - the tube diameter does not allow for much room to stack components, as you can in 54mm bay designs.  The 38mm line introduces a short battery sled which provides a way of holding and retaining a battery in an area next to a radial switch and an altimeter sled.  With some of the smaller altimeters, it is possible to do a custom long sled that incorporates a battery retainer instead of requiring a second sled for just the battery.  I have already designed and made available a long PerfectFlite StartoLoggerCF sled with a 9 volt battery retainer.  On an even smaller note, with a specific 300mah 2S LiPo battery, it is possible to stack a battery and an extra short sled (78mm long) for a compact 38mm bay that fits in a 6 inch long coupler tube.

Also, please make sure you order the correct 38mm coupler sized product. The parts that come in different sizes will have a choice of coupler tube size.  There is a thin wall size that fits Blue Tube 2.0 and there is a think wall size that fits MadCow's 38mm coupler tube.

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38mm DD End Cap

EC-00323
The DD (Dual Deploy) End Cap is a 5.9mm (0.23") thick cap with a 2.38mm (3/32") shoulder. The end cap is used on the removable end of a bay and attaches to a mounting ring.
$1.45

38mm RDD End Cap

EC-01323
The RDD (Redundant Dual Deploy) End Cap is a 5.9mm (0.23") thick cap with a 2.38mm (3/32") shoulder. The end cap is used on the removable end of a bay and attaches to a mounting ring.
$1.45

38mm Internal 1/4" Motor Retainer Kit

BTMR-20310
The 38mm internal 1/4" motor retainer is used for both minimum diameter rockets as well as general motor retention for any rocket motor that has a Loki forward closure with a 1/4 threaded end.
$14.95

38mm Internal 5/16" Motor Retainer Kit

BTMR-00310
The 38mm internal 5/16" motor retainer is used for both minimum diameter rockets as well as general motor retention for any rocket motor that has an Aerotech forward closure with a 5/16 threaded end.
$14.95

38mm CT Bay Template

CTBT-00351
The 38mm CT Bay Template is used to mark holes and window locations when constructing a coupler tube bay.
$3.45

38mm/BT60 BT Bay Template

BTBT-00352
The 38mm/BT60 BT Bay Template is used to mark holes on body tubes to align with a coupler tube bay or other parts.
$3.45

BT60/38mm Fin Holder

FNH-00353
The BT60/38mm Fin Holder is designed to hold a single fin in place while the root tab is glued in place whether it is a through wall or air frame surface mount.
$7.95