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Old 07-14-2002, 12:31 PM   #46
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My understanding of scale, is taking say the length of the car and divide by 10 for 1/10 scale....reversing it you multiply a Stratus R/C body(approx 16") times 10(1/10) the full size Stratus should be 160" long?.............agree/disagree........so, would the speed, also be modified by 1000 then....so our cars are going 35 times 1000=35,000 MPH?????
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Old 07-14-2002, 12:36 PM   #47
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a cars speed is only mentioned in one dimension, hence the scale speeds around 300-400 mph

the cars volume (i.e. the amount of car that has to pass through the air) is measured in three dimensions, hence the more complicated drag calculations.
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Old 07-14-2002, 05:44 PM   #48
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Sosidge......I dont believe we are talking about volume, as it relates to the ability to pass through the air...but scale....A sedan is 1/10 the size of a full size car....1" on our car =10" of full size car.At least that what i read in RCCA or sumpin'.
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Old 07-14-2002, 06:44 PM   #49
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If you want to compare scales, you have to know what you're comparing. If you're comparing a linear measurement like length, or width or speed, then you just multiply by 10.

If you're comparing an AREA measurement, like frontal area, you'd multiply by 100, for example, you'd need a stack of R/C sedans 10 wide by 10 high (100 cars) to get the same frontal area as the real car.

For volumetric measurements, you'd need ten long, by ten high, by ten wide, or 1000 cars to fill the volume of the real one.

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Old 07-14-2002, 07:37 PM   #50
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Dragon Slayer - what is it you're trying to measure?

Width? 1/10th (or 190mm * 10)
Length? 1/10th (16" * 10)
Height? 1/10th

weight? that's cubic, so it's 1/10*1/10*1/10 or 1000 \

So speed (length) is 10x not 1000x

The answer depends on the question you are asking.
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Old 07-15-2002, 09:28 AM   #51
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On the first page......Sirspeedy said that our cars weigh roughly 3.5 lbs....which at (1/10) would make it 350lbs as a full size car....someone disagreed and said you had to multiply by 1000....my understanding was that whatever scale you are in...1/5-1/8-1/10-1/12 etc...you multply the length of an r/c body, say 1/10 body is roughly 16"...so 16"times 10 =160" long(full size stratus)....width and height the same way.....On the speed issue....I was thinking the same way, 35mph times 10(1/10 scale) =350 mph(full size)....On the weight issue, i would have thought the same way.....???????
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Old 07-15-2002, 10:41 AM   #52
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For speed, yes, it's linear so it's 10*35 or 350

For weight its' cubic since it's a function of mass which is a function of Len * Wid * Hgt and therefore it's 10^3 or minimum weight of 5200 ounces (52 Roar min * 1000)

(btw, when I say it's a function of - I don't mean in the strict mathematical definitions. . .go loose please )
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Old 07-15-2002, 11:43 AM   #53
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Interesting.....
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Old 07-15-2002, 11:58 AM   #54
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Arrow Parma X20

Parma's new X20, which is a 190mm body based on the BRTCC Touring car series MG's was designed to be a direct competitor with the Stratus from PF. Its got a lower hood, a raked back windshield and a functional front splitter down low for lots of steering, but also has a lot of rear wing for balance. So it was designed to turn better than a Stratus, but still feel planted (i.e. like the awesome Bentley Speed 8 body that crushed everyone with last year).

On a seperate note-this body was designed with ROAR/IFMAR, etc. racing in mind. A lot of the other bodies people like were designed to fill a niche or demand (movie, hot seller, hot-import). For example, they molded in a front splitter for more downforce. When you trim this body down super low, the splitter is still there. With most other bodies, its cut-off when you get the body down to racer height, not parking lot basher height!!! And beleive me-when you trim off the wings or the splitter-you can feel it.
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Old 07-15-2002, 12:29 PM   #55
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I also tested the new Protoform Stratus 2.0 in compare to the known Protoform Stratus last weekend. Rear wing was as supplied and mounted in the second hole from back. At that track steering was about the same but the 2.0 had more downforce overall. Car was a TC-3 and 27T stock motor was used.
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Old 07-15-2002, 01:04 PM   #56
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Rayhuang........I used to race Karts in Indiana......Yamaha frame and KT100S...had the header coming out of the front....HUB distributing did my motor work....turned the cylinder around and put on a Alky carb....You still race?????
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Old 07-15-2002, 08:55 PM   #57
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Talking Yup!!

Dragon Slayer!! Yup-Jerry Sealschot (sp?) runs Hub. I have raced with him a few times. Back in the early 80's I ran his motors and bought a kart from him. He's a super nice guy. I raced a lot last few years, but this year I have not raced yet. I will run the WKA Grand national at Putnum park this August though. I have never raced Sprints, just played around. I love it, but always race Enduro karts with a Yamaha KT100S built by MISI in Oklahoma. Once my baby girl gets a little older, I'll race more!!! The funny thing is my wife wishes I'd get out of this hobby and stick with karts, but these cars are too cool!!! And way harder to win a race than a kart!!!
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Old 07-15-2002, 10:38 PM   #58
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Ray.....I sold all my stuff before moving to Texas....almost got back into it before i started racing R/C.....ever heard of Oak Hill raceway....1.8 mile road course in Hendeson TX....I got to run a friend of mines there once....wow....Funny thing...my wife said she'd like me to race karts also....but dang....$$$$$$$$I've been racing R/C for over 10 years now...cant see going to karts.......Neal Keller i belive is the motor man at HUB....he was on the IKF/WKA board too...man, when i first started Mac's were still popular....and Neal showed me a stock Mac and a ported Mac, there wasnt anything left....beautiful work.
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Old 07-16-2002, 08:29 AM   #59
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Default Wife's opinion!! haha!!

Yeah-do you think that the wifes dont like how FAT we becvome after a few years of this hobby??? Too many hours sitting sniffing solder!!! At least wrenching on karts is physical!!!
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Old 07-16-2002, 09:45 PM   #60
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Fat....naaah....thats just a shelf to hold some extra springs and Paragon.
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