Hello,
I usually do round trips, resulting head and tail wind (I can feel that in the legs). The resulting Powerpod readings in the Newton software indicates always tailwinds (at least I think that the blue area indicates tailwind).
Perhapse that explanes the poor powerreadings (I think/hope I 'm in a beter shape)
I included a few rides to check.
Head or tail wind?
Head or tail wind?
- Attachments
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- iBike_2016_04_22_0811_17_km_HiDef.ibr
- This was a ride in line and the wind came from left en head
- (348.3 KiB) Downloaded 282 times
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- iBike_2016_04_14_1328_72_km_HiDef.ibr
- (1.34 MiB) Downloaded 271 times
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- iBike_2016_04_21_1258_43_km_HiDef.ibr
- (880.34 KiB) Downloaded 252 times
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speedracer
- Posts: 40
- Joined: Thu Apr 14, 2016 4:31 am
- Location: Germany
Re: Head or tail wind?
I had same issue and very low power values on descents.
Check the Wind Scaling value in the Profile. There is a bug in ISAAC which sets it to 1.000 by default when you create a new profile.
This is far too low and should be either 1.4 for handle bar mount PP and 1.7 (I use 1.65) for Combo mount.
Check the Wind Scaling value in the Profile. There is a bug in ISAAC which sets it to 1.000 by default when you create a new profile.
This is far too low and should be either 1.4 for handle bar mount PP and 1.7 (I use 1.65) for Combo mount.
Re: Head or tail wind?
I have already changed that setting to 1,4 (I have a handlebar mount). I also adjusted the CdA to 0,4.