Race Boat

5

6

Done!

CAUTION! To keep your model from being lost on the water, you can tie the boat with a rope and grab it at the beginning of the experiment. When the stored energy is gone, you can easily catch the boat.

You will need

Your boat model, some water and one of territorial waters where the boat can float on the water.

Here's how

1. Remove the PLASTIC BOTTLE from the model, and fill it with half of water, and then assemble it back. When you assemble it back, make sure that the 80mm TUBE

B is bent so that it could touches the lower wall of the PLASTIC BOTTLE.

2. Use LITTLE AIR WATER SET build up pressure about 50 to 60 times in the

PLASTIC BOTTLE.

3. Put the boat into the water and remove the RELEASE CLIP.

4. Now repeat the experiment, but change the position of the nozzle before removing the RELEASE CLIP.

WHAt'S haPpEnInG?

After removing the RELEASE CLIP, the air/water mixture escaped from the nozzle at high speed, causing the model to shoot forward.

Tip

Make sure that the 80mm TUBE B touches the lower inner wall of the PLASTIC BOTTLE, otherwise, only air may escape from the nozzle. If air or water escapes from the PLASTIC BOTTLE, check that the OD15.8 FLAT ORING is properly placed and the PLASTIC BOTTLE is tightened.

1

2

3

4

left right

WARNING! If you want to try your model to a pond, river or lake, use only with adult supervision, so that someone can help in an emergency.

Wow… — So sheek!

Race Boat

It's time to make the second boat model! This one is sleeker than the

first boat you built, so it may glide through the water a little faster than the barge. Here we go!

1

3x 14

1x 19

1x

12

1x 15

1x 20

1x

M1-2 2

13

1x 16

1x 21

1x

3

M1-1

1

M1-1A

CAUTION! When you assemble the PLASTIC BOTTLE, make sure that the 80mm TUBE B is bent so that it could touches the lower wall of the PLASTIC BOTTLE.

4

5

Done!

You will need

Your race boat model, some water and one of territorial waters where the boat can float on the water.

Here's how

1. Repeat the experiment 4 steps 1 to 3 (page 20).

2. Now repeat the experiment, but without filling the bottle with water. Also, push the nozzle down as far as possible. Compared with the first step, what difference do you see?

WHAt'S haPpEnInG?

After you removed the RELEASE CLIP, an air / water mixture escaped from the nozzle at high speed and caused your model to shoot forward. If the nozzle is submerged, this will work even if there is only air in the bottle. The reason is that the escaping airflow encounters greater resistance here (the water) and therefore generates more propulsion.

Tip

If you want to try the models on a outdoor territorial waters, please note the information on page 3.

1

2

Above

Below