He said "semi-flat trailer", using "semi" to mean "partially", instead of to mean a trailer without a front axle (big rigs).And the huge weight of a true semi-trailer would not be suitable
That's nothing.The car and trailer together only came in at 1650lbs, boasted a top speed of 55mph and claimed to get 133wh/mile.
I could drive a Tesla with a top speed of 120mph and get 25wh/mile.... just not at the same time.
But let's say he averages 133wh/mile across the whole trip. That's only 2-3x as good as a modern electric vehicle.
Good for 45 miles of range you say? (seems reasonable).
His claim: 32,000 miles in 17 months = 63 miles a day.
Your claim: 32,000/45 miles a day = 711 days = 24 months.
Pretty close to what he claims, in the right ballpark anyway. Maybe he'd sneak more when considering prevailing winds, or... maybe he drove at a more optimal speed.
If he's only going 63 miles per day average... almost all of his time is going to be spent doing nothing anyways. It would be silly to travel at 55mph for an hour and ten minutes, and then just sit all day. Might as well drop down the speed to half or 1/3 of that and get more range.
"All day long", bullshit. All day long without overheating, sure. All day long for power? No.
Record-wise: Unsupported, 4 months. Supported, 2.5 months. But they take a tighter route by nearly half (18,000 miles). Still 6 months a world-class athlete could do it. I agree, anyone reasonably fit could hit 1/3 of that speed.Granted, a relatively fit person could easily outdistance it on a bicycle, and since it is a fair weather proposition anyway, it would be a lovely bike trip.
That's only 3 hours of moderate-paced biking a day. Heck, if you started out as a chubby desk-jockey who'd never ridden a bicycle... by the end of the first month by virtue of attempting the ride you'd be in as good of shape as an ambitious amateur and pulling 3 hours a day easy.
I know a guy who took a Motorino Xpd (Honda Ruckus scooter with EV drivetrain) with a solar trailer (3 panels, the sides which could hinge to angle better) on an 800 mile trip, that he wanted to take all the way to South America. Had a decently-big Leaf battery stack on it. Max speed was 50km/h (30mph), pulling about 1kw (33 watt-hours per mile), and he said even at biking speeds the solar was pretty much useless. Had almost no impact on his daily range. He stopped everywhere and every night to plug in to charge, and eventually gave up before even leaving Canada it was such a disappointment. Even when he'd park for a whole day just to recharge, his only goal became "limp it to the next gas station and hope they'll let me use their power".