Welcome to the Water Rocket Forum, sponsored by The Water Rocket Achievement World Record Association.

The largest, most sophisticated and ground breaking group supporting you, the serious water rocket flyer! Whether you are a beginner or an expert, the WRA2 has something for everyone.

A water rocket is a type of model rocket using water as its reaction mass. The pressure vessel (the engine of the rocket) is constructed from thin plastic or other non metallic materials (usually a used plastic soft drink bottle) weighing 1,500 grams or less. The water is forced out by compressed air. It is an example of Newton's third law of motion.

coocking clocks instead of a tommy timer ?

Discussion about deployment systems including altimeters, timers, air speed flaps, servo systems, and chemical reactions.
Post Reply
User avatar
RaZias
WRA2 Member
WRA2 Member
Posts: 751
Joined: Mon Jul 14, 2008 3:16 pm

coocking clocks instead of a tommy timer ?

Post by RaZias » Thu Oct 22, 2009 3:26 pm

Does anybody already tried to make a parachute deployement system from those coocking clocks instead of a tommy timer ?

Like those that have a shape of an egg and you twist them so they will start rotating until they ring to say the coocking is ready.


Research and Development is the soul of WR

User avatar
rockets-in-brighton
Senior Member
Senior Member
Posts: 431
Joined: Fri Jun 20, 2008 12:33 pm

Re: coocking clocks instead of a tommy timer ?

Post by rockets-in-brighton » Thu Oct 22, 2009 3:42 pm

RaZias wrote:Does anybody already tried to make a parachute deployement system from those coocking clocks instead of a tommy timer ?

Like those that have a shape of an egg and you twist them so they will start rotating until they ring to say the coocking is ready.
Main downside I can think of is that they are made to work on the scale of minutes rather than seconds so don't know how reliable they would be for short periods. Not very inexpensive, and the clockwork mechanisms are quite heavy. Please do try and report back.


Cheers
Steve
Rockets-in-Brighton
WEB: http://groups.google.co.uk/group/rockets-in-brighton

User avatar
Jelo
WRA2 Member
WRA2 Member
Posts: 225
Joined: Wed Sep 16, 2009 4:38 pm

Re: coocking clocks instead of a tommy timer ?

Post by Jelo » Fri Oct 23, 2009 11:04 am

as mentioned above, their made for counting minutes, if not hours, also, they have a built in bell or speeker, which is heavy, furthermore, they are often way bigger and heavier than just a tomy timer

but i guess it would work 8)


Anto'

always wear a raincoat

Post Reply