Thứ Hai, 2 tháng 1, 2012
The motor
This is the kind of motor I would like to use in the velomobile wheels. It is a cam drive. The pistons make multiple strokes per revolution. This is ideal because the velomobile wheel rotates at low speeds (~ 500 rpm). The Hagglunds has to be scaled down a little. The smallest type weighs ~800 kg has a displacement of 15100 cc (15.1 liter) and produces 530 kW.
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| The Hagglunds Compact hydraulic motor |
Efficiency of this machine is high but should be improved for the velomobile. Options for improving the efficiency may be found in reducing leakage, friction and optimizing the commutation. The velomobile motor may have a cam with 3 or 4 waves, 4 or 5 pistons and a total displacement of ~2 cc per revolution. The transmission ratio may be controlled by switching on and off the pistons with valves (see Artemis intelligent Power and this video). See also this page
Chủ Nhật, 1 tháng 1, 2012
12 New Year's resolutions for paddlers
If you've outgrown your drysuit, go ahead and resolve to lose some weight. Otherwise, try these on for size and choose the ones that fit.
In 2012, I resolve to...
1. Work on skills that don't come easily to me.
2. Seek out a mentor who can challenge me in my long-term development as a paddler.
3. Join organizations that protect the environment.
4. Introduce kayaking to someone else.
5. Complete a risk assessment every time I go out on the water and file a float plan.
6. Learn to repair my boat and gear (or at least some of it).
7. Engage in a thoughtful debrief after each paddle to learn from my experiences.
8. Support my local paddlesport shop as much as possible.
9. Practice rescues in the conditions and seasons in which I paddle.
10. Learn to tie a new knot.
11. Learn a related body of knowledge (e.g.wilderness first aid, leave no trace, meteorology).
12. Paddle in unfamiliar waters (preferably outside my region).
We hope 2012 is a happy, healthy year that fulfills all your paddling desires.
Best,
Sharon + Alec
Driving to the Put In: Grand Canyon 2012!
| Driving down to Flagstaff with the home team. |
| Last minute packing on New Years Eve! |
Sim-Lei - Electric Car
Motoczysz EP1 - Electric Racing Motorcycle
lightning GT - Electric car
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