These are my modifications to set 4209, the fire plane as well as 4441, the police dog van.
Sorry for the bad pics, my bathtub wasn't available....
First of all, I added wheels, making this an air, land and sea vehicle. The original was just a seaplane.
Then, I added a small airplane that could be launched from the roof. This could be used as a spy plane hen hired by government, and in fog it could survey the situation of a fire.
Only fits one, but I like it... Mulitcoloured... I don't have all bricks in red, yellow and white, sadly...
Then I added a gigantic radar dish. Could be useful for the military and the police, again, so this could be an all-purpose emergeny plane...
I also extended the trailer of the little jeep that came with this, first the trailer was 8 studs long, now it's... longer.
Nicely fits a fire boat.
Or a police boat!
Before, the flap that let out the blue translucent bricks simulating the water was flimsy and opened easily. Problem solved with this flap.
Refueling the plane.
This was the 4441 mod, a nice little stinger to pop tyres when folded out. Might post another picture of it folded out later, but I had no time now...