23-06-2012, 04:46 PM
hovercraft
Hovercraft Presentation.ppt (Size: 9.68 MB / Downloads: 656)
Design Process
First couple of meetings were spent brainstorming and voting on ideas.
Decided to first build a prototype to test ideas on so that we don’t have to worry about perfect dimensions and appearance.
Final version is the one where we carefully measured everything and used color coordinated materials.
Base Design
Found that it wasn’t aerodynamic enough and the lip wasted the lift by having to fill up a larger volume for the same distance off the ground.
Also, it just didn’t look that cool!
Number of Fans
Then, we thought about using each fan for both thrust and lift by dividing the air stream.
We finally decided to use a larger motor for thrust and a fan for lift.
Fan Placement
We originally thought of two fans, one in front of the other. This caused the craft to be unstable and too long.
The side by side design gives good stability and allows for a shorter length.
Lastly, we had to move the fans a couple of inches forward because the thrust of the large engine pushes the nose down.
Appearance
For the final design, we chose an all black and yellow appearance.
When we looked at the craft from above it reminded us of Pac-man so we decorated accordingly.
Hovercraft Presentation.ppt (Size: 9.68 MB / Downloads: 656)
Design Process
First couple of meetings were spent brainstorming and voting on ideas.
Decided to first build a prototype to test ideas on so that we don’t have to worry about perfect dimensions and appearance.
Final version is the one where we carefully measured everything and used color coordinated materials.
Base Design
Found that it wasn’t aerodynamic enough and the lip wasted the lift by having to fill up a larger volume for the same distance off the ground.
Also, it just didn’t look that cool!
Number of Fans
Then, we thought about using each fan for both thrust and lift by dividing the air stream.
We finally decided to use a larger motor for thrust and a fan for lift.
Fan Placement
We originally thought of two fans, one in front of the other. This caused the craft to be unstable and too long.
The side by side design gives good stability and allows for a shorter length.
Lastly, we had to move the fans a couple of inches forward because the thrust of the large engine pushes the nose down.
Appearance
For the final design, we chose an all black and yellow appearance.
When we looked at the craft from above it reminded us of Pac-man so we decorated accordingly.