To be fair I have a feeling that if you added 'animated' to the SVG request, the output quality from many other models would improve, just because of the extra chain-of-thought work needed to fulfill the more complex request. IMHO the animation requirement should be added to the canonical pelican prompt.
It depends what you use them for. I use one as my commuter. Most days I ride it with the motor set to just overcoming the added weight of the system plus my heavy backpack. That is uphill, against the wind both ways, of course. I only use more engine power when I have a bad day or am just done pushing hard. But I am on my bike, not in a car. Life is good.
On the flats, I get no benefit since the motor cuts off at my normal cruising speed of some 20 mph. It just feels like a solid bike in that mode, a bit heavy, of course.
I have taken it on a few regular non-commute rides as a test and must say it did not make me lazy or weak, or suffer less. Easy of riding is not me. In the end, it is the rider that makes the ride.
The railroad going up Mt. Tamalpais employed Shay locomotives as well as Heisler. I used to think they were all Shay but learned that the No. 9 that is being restored is a Heisler.
"The most significant design difference between Shays and Heislers was the arrangement of the driving cylinders. The Shays had either two or three driving cylinders mounted on the right hand side of the locomotive. Since the weight of the driving cylinders sat only on one side, the boiler was mounted offset to the left to provide a counterbalance. In the Heislers, the driving cylinders were located in the middle of the locomotive."[1][2]
> The most significant design difference between Shays and Heislers was the arrangement of the driving cylinders.
Another very important difference (and one that makes Heislers superior to Shays) is that the driveshaft is centered on the loco frame.
That means the driveshaft doesn't need expansion joints, which tended to get jammed under high torque and prevent the trucks from pivoting under the local (thus splitting the rails).
Is that true, though? When my parents got married in the 60's in the Netherlands, they had to move in with my grandparents because there was no housing available and eligibility was restricted. It took a few years and a 2nd child before they were eligible to rent an apartment. Perhaps that does not show up in the statistics?
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