The military use of submarines is to make full use of their ability to lurk underwater and then surprise the enemy. Do you know how the submarine is free to sink and float?

Submarines can dive freely in the water, floating, and even hovering, the principle is actually a kind of bionics. There is an organ called swim bladder in the body of fish, which can contract or expand under the control of muscles.

When the swim bladder is full of air, the buoyant force on the fish in the water is greater than the force of gravity, and the fish floats; when the swim bladder shrinks, the buoyant force on the fish is less than the force of gravity, and the fish sinks.

Inspired by this, people also installed a swim bladder-like chamber for submarines. The submarine dives and floats by filling and draining water.

For today's drawing tutorial, let's learn how to draw a submarine. It is diving not far from sea level and seems to be coming to the surface soon.

It's a submarine with a simple structure, and we've left out a lot of the details so it won't be very difficult to draw. If you are interested in the submarine, follow the instructions below and try to draw it.

SUPPLIES NEEDED:

√ Draw a Submarine PDF (Click to download for free.)

√ Drawing Papers (You can get it easily and I would say almost any paper can be used.)

√ Pencils / Markers / Crayons / Watercolors (Remember to use a pen with a fine tip when outlining.)

FOR WHOM:

Preschoolers and kids of all ages

TIME NEEDED:

About 1 hour

INSTRUCTIONS:

How to Draw a Submarine Step by Step

Step 1 Draw the top edge of this submarine.

Step 2 Outline this submarine.

Step 3 Draw the tail of this submarine.

Step 4 Draw the paddles of this submarine.

Step 5 Draw two round windows.

Step 6 Draw two more round windows.

Step 7 Draw a pentagram and two lines.

Step 8 Draw two windows and the sea.

Step 9 Color it in and we're done.

Guys, have you learned how to draw a submarine yet?