Adapt Physics power calculations to include slower boats and coastals
Since I've started rowing OTW in my "coastal" 1X, I have been struggling to get power numbers that resemble what I am feeling (RPE) and/or what I used to get in the 4X. For example, in the 4X, typically my overall average power was 128 watts for 1:18:00 of moving time (n=119). In the 1X it's been 70 watts for 1:14 of moving time (n=17).
At first I blamed it on the coastal 1X vs a standard racing 1X and began upping the crew weight to see if I could get reasonable power numbers. That hasn't solved the problem.
Lately I've been taking a closer look at the charts and the data file that you create for each workout and think I have found the problem.
The physics department doesn't realize how slow I am in the coastal 1X. It appears that boat speed numbers below 2.5 m/s are being rejected and assigned zero power.
So, when I'm just cruising around, I'm getting "moving time" but no credit for the (minimal) power I'm putting out.
Any chance you could adjust that lower bound to 1.5 without overloading the physics guys or dramatically increasing the time it takes to do the calculation?
Comments (7)
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reporter maas aero
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length: 6.48m
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beam: 0.635m
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Beam at water line: 0.4826m
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weight: 17.69kg (carbon: 15.88kg)
liteboat:
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length: 5.969m
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beam: 0.737m
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Beam at water line: ???
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weight: 34.93kg
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reporter - attached Coastal.xlsx
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reporter https://sanderroosendaal.wordpress.com/2010/11/21/drag-revisited-2/
So taking the Maas, we have a beam at water line of 0.48 at 110kg displacement (assuming a @Gregory Smith weight of 93kg). It’s quite different from the values of race shells. On the other hand, in terms of boat length, it’s quite similar.
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- attached RiM-147894.tcx
- attached RiM-148635.tcx
Here's two TCX files for a coastal 1X.
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reporter Adapt the CP chart as well (now doesn’t take Coastal)
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reporter - changed status to resolved
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Thank you…