The uMAD is a magnetic apogee detector used for
sensing when the rocket tips over at apogee. It was
developed for pyro rockets, but can be used with
water rockets as well.
This glue is a flexible polyurethane glue that
sticks fairly well to PET. We use it to seal bottles
when splicing. It's also suitable for attaching fins
and other components to the rocket.
E-bay has the best bargains for RC-Servo motors.
They are best bought in packs of 6x or more as you
will want to have a few spare when your rockets
don't do as they are told.
Search for "RC micro
servo" and then search for the one you want. We
mostly use the 9 gram versions.
