Hello fellow RCIndians this is my entry into the for the sweepstakes, always wanted to build an airboat for having fun with . This airboat will also double up as a rescue boat for future water projects.
Have taken inspiration from ashok sirs design and also researching on the aquacraft mini alligator tours . The basic ratios were taken after looking at a few airboat designs.

I have only designed my airboat and before i proceed further i would like boat builders to review this design and tell me if any changes have to be made.
Material i am planning to use is 3mm coroplast with internal frame from 6mm depron.

Basic dimensions:
Bow to stern: 18"
Beam: 10.5"
Thickness: 2"

Planned Electronics:
CF2822
18A ESC
9gm servo
2200Mah Lipo
10x4.7 prop

The design looks good. Go ahead with the build

In corro, be careful of the alignment of the flutes. Align in such a way that water can not collect in the flutes - will add significant weight. If there is an odd open flute, seal off with hot glue

One way to strengthen the corro to prevent rupturing if you hit a sharp stone at speed is to coat with resin. Be sure to use a thin coat as that is heavy. Sand the corro lightly then wipe off with thinner before applying resin to remove Silicon Oil traces (used as a mould release agent)