| Glossary H | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 0..9 | A | B | C | D | E | F | G | H | I | J | K | L | M |
| Misc | N | O | P | Q | R | S | T | U | V | W | X | Y | Z |
Helical Gear A gear with a spiral or semi-spiral meshing face.
Horizontally Opposed Type of engine layout in which the cylinders are placed at 180� to one another. It is also described as a flat twin/four etc. or a boxer engine.
Hub-Centre Steering Steering system in which the wheel pivots about its centre point; the axle is normally fixed.