Water Rocket Car MkVI

MkVI of the Water rocket car is 2 x 2.25L bottles connected via a robinson coupling. The same Car body is retained. We also tried using water and bubble bath to make a foam mixture as well as straight water in different launches to see if there was any difference in speed and distance.

Our previous record of 38m was doubled with the additional bottle and our new record distance is 76m. Speed was recorded at 20.8km/hr but this may be a limitation of the bicycle computer, with the smaller wheels we have on the wrocket car we may have reached the limitation of how many times per second the bicycle computers relay can work at. IF we were to change the diameter of the wheel on the computer to a standard bike tyre size we would be doing over 100km/hr. Maybe it wasnt designed to go faster than this.

Come visit our website for more information

http://wrocket.hampson.net.au

Category:

Science & Technology

Tags:

• water
• rocket
• bottle
• car

[USWaterRockets]

Great experiments, Todd. It looks like some of the runs were cut short by hitting the edge of the road. The ones that went straight looked really good.

[toddhampson]

Thanks .. yeah , there is more distance available if we work on getting the runs straight. Next problem may be finding a long enough section of flat concrete :)

[Danielastronomo]

Ok, is an iteresting way of save the friction that the guide rail give.

Did you think put some tipe of suspension on the wheels? Maybe that give more stability. And it go straigther. You could use some springs. It is only an idea :)

[toddhampson]

Yes we are building the next car at the moment which will have fixed wheels, but we are looking at getting a RC buggys' wheels and servos's to mount to a future version to have steering control.

These buggies also typically have spring suspension, so we would try to mount everything on a water rocket car body

[Danielastronomo]

Nice video, did you think use a guide rail in horizontal way for guide straigthly the car?

[toddhampson]

Thanks for the comment ... We have thought about it, but we think its part of the challenge to make it go straight without the guide wire / rail :)

[toddhampson]

thanks George . .Hopefully we will be able to use it for a few months. The blocks of land are still mostly for sale. All big industrial lots. Its pretty good for launching rockets too ... a good 220m x 220m :)

[gk123434534]

That's great work Todd! :) The new location for doing testing looks ideal.