Could he have been helped by the fan?
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Could he have been helped by the fan?
Impressive either way… video of a cross fitter pulling a 1:17
https://www.youtube.com/watch?v=R2ErwKmCacI
I'm wondering if the fan pointed right at the flywheel (I think intended to keep him cool) could have helped?
https://www.youtube.com/watch?v=R2ErwKmCacI
I'm wondering if the fan pointed right at the flywheel (I think intended to keep him cool) could have helped?
- Citroen
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Re: Could he have been helped by the fan?
It's impossible to tell from that video because the camera man is spending too much time focused on the PM4 and not enough focused on what the big fella is doing.
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Re: Could he have been helped by the fan?
Hmm... But in general, will a fan pointed directly at the flywheel the way it is in this video affect the score?
- hjs
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Re: Could he have been helped by the fan?
Nah, its a constant airflow and not very hard, if there is any influence its minimal.ericredaxe wrote:Hmm... But in general, will a fan pointed directly at the flywheel the way it is in this video affect the score?
Good score, with horrible pacing, backing of sooner to around 1.15 will give this guy an even better score
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- jackarabit
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Re: Could he have been helped by the fan?
Looks to me the fan is directed at the closed side of the housing and the perfmetal band. IIRC, air intake is at the damper grill and outlet is thru the perf metal. Maybe the holes in this perfmetal band that are pressurized would tend to slow the flywheel but other holes at high angle to the air flow would get a slight Venturi effect that would tend to maintain flywheel speed. If the damper were opened up to 10 and the fan positioned to blow directly into the flywheel thru the damper opening, I think the flywheel's rate of deceleration might increase to a degree which would negatively effect his time. If placed normal to the damper opening, the air current might block air entry to the flywheel and decrease the flywheel's rate of deceleration and perhaps give him a better time if he catches the freewheel pawls without loss of watts per stroke. This is only my SWAG so don't get out of patience with me. Not a physicist and no one In their right mind would allow me to play one on TV!
Jack
Jack
There are two types of people in this world: Those who can extrapolate from incomplete data
M_77_5'-7"_156lb
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M_77_5'-7"_156lb
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Re: Could he have been helped by the fan?
It doesn't matter. It can change the drag factor, but that can also be done by changing the damper setting. The monitor takes that into account. Changing the fan (or the damper setting) during the middle of a piece might have some effect on the results. In the days of the model B, there were strict rules against changing the damper setting during the middle of a race, since it was believed that you could gain an advantage by making a change, but I don't know whether it was up or down - probably down. I haven't heard anything about that rule in recent years. Possibly the more recent PMs can correct for mid-piece changes in the damper setting or other airflow modifications.jackarabit wrote:Looks to me the fan is directed at the closed side of the housing and the perfmetal band. IIRC, air intake is at the damper grill and outlet is thru the perf metal. Maybe the holes in this perfmetal band that are pressurized would tend to slow the flywheel but other holes at high angle to the air flow would get a slight Venturi effect that would tend to maintain flywheel speed. If the damper were opened up to 10 and the fan positioned to blow directly into the flywheel thru the damper opening, I think the flywheel's rate of deceleration might increase to a degree which would negatively effect his time. If placed normal to the damper opening, the air current might block air entry to the flywheel and decrease the flywheel's rate of deceleration and perhaps give him a better time if he catches the freewheel pawls without loss of watts per stroke. This is only my SWAG so don't get out of patience with me. Not a physicist and no one In their right mind would allow me to play one on TV!
Jack
In any case the fan would have been more effective if it had been pointed directly at the person. The flywheel did not need cooling.
Bob S.
- jackarabit
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Re: Could he have been helped by the fan?
It matters in the sense that if drag is pushed high enuf, even these heavy HIITers who are happy with nominal level 10 won't be able to stroke the wheel and no work will get done. The PM can compensate and relate all ways of accomplishing work but it can't record work where there isn't any.
Jack
Jack
There are two types of people in this world: Those who can extrapolate from incomplete data
M_77_5'-7"_156lb
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M_77_5'-7"_156lb
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Re: Could he have been helped by the fan?
That appears to be an american record…. anyone from Concept 2 monitor this board? If so, someone should find a way to contact him for proper recognition!
Re: Could he have been helped by the fan?
I don't believe that there are any official American records kept. The UK site used to keep them for the UK, but I don't know if it is still done since the forum (and presumably the website) got changed.ericredaxe wrote:That appears to be an american record…. anyone from Concept 2 monitor this board? If so, someone should find a way to contact him for proper recognition!
Bob S.
- hjs
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Re: Could he have been helped by the fan?
There certainly have been faster 500 s done in the us, but like Bob says, there are no, besides the 2k, records held.ericredaxe wrote:That appears to be an american record…. anyone from Concept 2 monitor this board? If so, someone should find a way to contact him for proper recognition!
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Re: Could he have been helped by the fan?
There are no 100m or 300m records. The NZIRA (New Zealand indoor rowing assoc.) used to hold them but NZIR@ went out of business a few years ago.
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Re: Could he have been helped by the fan?
American records for various distances are indeed recognized on the Concept 2 website.
http://www.concept2.com/indoor-rowers/r ... weight=All
He is actually now listed.
http://www.concept2.com/indoor-rowers/r ... weight=All
He is actually now listed.
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Re: Could he have been helped by the fan?
Congratulations to him, but I think there are many, many rowers who can pull faster 500m times - they just don't bother to log/record/verify them.
Probably anyone pulling sub 5:50 for 2k is guaranteed to go that fast in an all-out 500m.
Either way, props to him. I definitely can't come close to that result.
Probably anyone pulling sub 5:50 for 2k is guaranteed to go that fast in an all-out 500m.
Either way, props to him. I definitely can't come close to that result.
PBs: 2k 6:09.0 (2020), 6k 19:38.9 (2020), 10k 33:55.5 (2019), 60' 17,014m (2018), HM 1:13:27.5 (2019)
Old PBs: LP 1:09.9 (~2010), 100m 16.1 (~2010), 500m 1:26.7 (~2010), 1k 3:07.0 (~2010)
Old PBs: LP 1:09.9 (~2010), 100m 16.1 (~2010), 500m 1:26.7 (~2010), 1k 3:07.0 (~2010)
Re: Could he have been helped by the fan?
Ah! That's a new one on me. I had not run across that before.Thanks for posting it. I was pleased to find from it that, two of us, Dean Smith and I, hold 17 of the 20 records for 80-89. Dean has most of the short ones and I have most of the long ones. In less than 2 months, I can start in on the next age category (if I make it there), but I am no longer optimistic about doing well. At 86, I was confident that I could sweep the field, but the last three years have not been kind. It seems that one of my bypasses failed some time ago and spinal stenosis is creating problems with the lateral nerve that serves my left leg. In these age brackets the winners are those who can keep the pace of deterioration down to a slow gallop.ericredaxe wrote:American records for various distances are indeed recognized on the Concept 2 website.
http://www.concept2.com/indoor-rowers/r ... weight=All
He is actually now listed.
Bob S.
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Re: Could he have been helped by the fan?
Bob - very cool and congratulations on the records! Total respect that you keep on it... Best wishes for good things to come in the coming years!
Armando - I agree that it is likely not a highly recorded distance in the rowing world. I'm sure there are some that can go faster, but I'm not sure about many many...
Armando - I agree that it is likely not a highly recorded distance in the rowing world. I'm sure there are some that can go faster, but I'm not sure about many many...