| From: | "Ojaste,James [NCR]" <James.Ojaste@**.GC.CA> |
|---|---|
| Subject: | Re: R2 bites... let's fix it! (Also: Attention Car enthusiasts) |
| Date: | Mon, 11 May 1998 11:33:28 -0400 |
>>>>Why should the winch cost change? Just switch to a higher or lower
>>>>gear ratio as the load changes - more teeth won't cost more money...
>>Well, if you want a given motor to be able to pull more weight, you
>>can trade off torque for RPMs. Think of a bicycle chain - you can
>>only pedal so hard, but you can turn that constant energy source into
>>high torque (low gear for going up hills, which is basically a higher
>>load) or into high RPMs (high gear for going flat or downhill - a
>>much lower load). So the only things that you have to worry about
>>changing are how strong the cable is and how strong the mount is,
>>but cable is cheap, and so are bolts. So we can pretty much ignore
>>them...
>
>ah, ok in R2 terms, what would you say the "exchange reate" would be?
>and would acceleration be affected?
It should be whatever ratio you want - just keep in mind it's a ratio.
So you can pull twice the load at half the speed etc.
>>>the net. Since 1 US$ ~= 1 nuyen (I understand this is based on
>comparing
>
>>$1 US is about 0.5Y, IIRC - I think it's listed in Denver...
>
>I think you are thinking of the UCAS dollar (which is 5$ = 1 nuyen)
Doh! Yeah... *hangs head in shame*
>>>McDonalds to the soy-burger joint in NAGRL), the prices came to be
>about
>>>1/2 Load rating ...
>>>The site's url is: http://www.accessoryworldinc.com/
>
>>I don't see how you got Cost = 1/2 Load from that - I took a look
>>at the truck winches, and you can basically double the load for
>>$100-150. 100Y would be 0.1 DP per doubling... Not significant. :-)
>
>100Y P not .1 ... and I set up a chart of the different winches on
Argh! Alright! That does it! I need a math copro. :-P
>that site and compared their prices to the Load rating (Load=1/2 stall
>rating) and on average the ratio came to about $1/1 nuyen yeilds 2 points
>of load (I think for one winch, it was actual 3 points of load per
>dollar/nuyen)
Alright, let's take another look:
Model Stall Load Cost Cost/Stall Load
ATV Winches:
T1500 885kg $200 $0.23/kg
T2000 ???kg $260 ?
Trailer Winches:
S2500 1400kg $400 $0.29/kg
S3500 1850kg $450 $0.24/kg
S4500 2300kg $500 $0.22/kg
Truck Winches:
S6000 3000kg $760 $0.25/kg
S9000 5400kg $860 $0.16/kg
X6 3000kg $650 $0.22/kg
X9 5400kg $760 $0.14/kg
Now, R2 has winches costing 1DP/kg of winch load rating. If the load
rating is half the stall load rating (I'll trust you on that), the
cost per kg above should be doubled, leading to a cost of $0.28/kg
up to $0.58/kg. I'd say that the DP cost is too high, yeah...
I could see extra DP being charged for mounting, designing the frame
to support the weight (you can get winches for cars and bikes, for
instance), etc. 1DP/kg still seems a little high, though...
James Ojaste
