Table 2.
The text content of the morphological feature table for designing an amphibious bike.
| Features | a | b | c | d |
|---|---|---|---|---|
| Number of wheels | 0 | 1 | 2 | 3 |
| Wheel type | Inflatable bicycle tyre | Airless tyre | Rigid floating tyre | |
| Propulsion in water | Propeller | Paddle wheel | Paddles | |
| Number of propulsion units | 0 | 1 | 2 | 3 |
| Powered by | Hand | Foot | Both | |
| Riding position | Recumbent seating | Upright seating | Upright standing | |
| Seat arrangement | Side by side | Fore to aft | ||
| Steering | Flexible shaft | Propeller | Rudder | |
| Power transmission | Chain | Drive shaft | Belt | |
| Frame material | Aluminum | Composite(e.g. carbon fiber) | Plastic | |
| Buoyancy | Inflatable elements | Hull | Rigid float |