They now have power hubs for bicycles. Serious riders measure their output in
watts and train to do better, or to keep their output (watts) consistent.
That said, my son owns a bike shop catering to competetive sports. Just talked
to his partner who is in his 30's and extremely fit. Average power for a guy
like that riding down the road is 150 to 200 watts. A sudden burst of 1000 to
1200 watts is possible, but we're talking 10 seconds or less.
So all we need to do is regain our youth, lose the fat, train hard and we can
keep our buddy keying an Argonaut 5
Dave
WA3MKB
----- Original Message -----
From: "DAVID HELLER" <dtx@verizon.net>
To: "Discussion of Ten-Tec Equipment" <tentec@contesting.com>
Sent: Friday, January 30, 2009 12:43:10 PM GMT -05:00 US/Canada Eastern
Subject: Re: [TenTec] OT
200 w out with everything else included including efficiency works out to
getting close to a half horsepower - probably not too difficult for a
healthy horse - but one person? K3TX
----- Original Message -----
From: "Barry N1EU" <barry.n1eu@gmail.com>
To: "Discussion of Ten-Tec Equipment" <tentec@contesting.com>
Sent: Friday, January 30, 2009 11:24 AM
Subject: Re: [TenTec] OT
> FWIW, someone in good shape can maintain a long term power output of
> about 200W on a stationary bicycle. That's power to the flywheel
> before generator conversion inefficiency.
>
> 73,
> Barry N1EU
>
> On Fri, Jan 30, 2009 at 11:15 AM, Bwana Bob <wb2vuf@gti.net> wrote:
>> Well, they have them on portable AM/FM "emergency radios" and there are
>> hand cranked cell phone chargers. To run a transmitter you need a bigger
>> generator. They are on the surplus market and there is a British or
>> maybe Australian company that makes one for the Q-mac HF portable
>> transceiver.
>>
>> I don' think its a very efficient way to stay on the air. Better to get
>> a couple of hefty batteries and put them on a solar panel for
>> charging. I can run my Scout for quite a while on a 7 AH battery, if I
>> reduce power to about 20-30 watts.
>>
>>
>> 73,
>>
>> Bob WB2VUF
>>
>> John wrote:
>>> OT...... How come we don't see hand winding generators for our rigs to
>>> use when the power goes out ? Is there really such a thing . John
>>>
>> _______________________________________________
>> TenTec mailing list
>> TenTec@contesting.com
>> http://lists.contesting.com/mailman/listinfo/tentec
>>
> _______________________________________________
> TenTec mailing list
> TenTec@contesting.com
> http://lists.contesting.com/mailman/listinfo/tentec
_______________________________________________
TenTec mailing list
TenTec@contesting.com
http://lists.contesting.com/mailman/listinfo/tentec
_______________________________________________
TenTec mailing list
TenTec@contesting.com
http://lists.contesting.com/mailman/listinfo/tentec
|