tag:blogger.com,1999:blog-5431073759842036036.post1259523527072529906..comments2018-09-11T02:36:50.058-05:00Comments on Fast RC: New wheels and more street testingNick Maslowskihttp://www.blogger.com/profile/04461306734496559622noreply@blogger.comBlogger5125tag:blogger.com,1999:blog-5431073759842036036.post-20937472494133828012007-11-16T21:36:00.000-06:002007-11-16T21:36:00.000-06:00Terry, both your comments are things I have been w...Terry, both your comments are things I have been working on for a while. I am working on designing a wing that does exactly what you describe. A wing to provide maximum down force at low speeds, then decreases as speeds increase. I will post information on my initial wing design soon.<BR/><BR/>The diffuser/ground effect force that you mentioned is very desirable. It is much more efficient at making down force than wings themselves. I have been studying ways to create this same effect in my X2. I have a picture on my other site showing a great car design with a diffuser:<BR/><BR/>http://bp2.blogger.com/_3N0hwXEVK9I/RxlB_otdjxI/AAAAAAAAAyo/HNSnkP55tpk/s1600-h/am-d01.jpg<BR/><BR/>I have thought about the mass of the motor in the suspension system. It isn't good practice to have so much weight in the suspension. But my theory is that the surfaces that the car will run on will be fairly smooth and not much suspension travel will be seen. I saw this first hand when I tested at the Houston Drag way. The surface was glass smooth with only a few expansion joints every 100 feet or so.Nick Maslowskihttps://www.blogger.com/profile/04461306734496559622noreply@blogger.comtag:blogger.com,1999:blog-5431073759842036036.post-61750282677388587762007-11-16T13:51:00.000-06:002007-11-16T13:51:00.000-06:00I was thinking about the comments of anonymous and...I was thinking about the comments of anonymous and trying to decide if they have any merit. The only thing I can think of is unsprung mass. The motor itself is unsprung mass, isn't it? That is, the motor not part of the load supported by the suspension of the vehicle, is it? As you hit bumps, this could mean more impact on your tires and the car as a whole. The suspension cannot compensate for the unsprung mass of the motor. Most 1:1 high-performance cars go for the least unsprung mass possible. I don't know if this is what anonymous is getting at, but this does cross my mind. My understanding is that you want as much of that car's weight as possible to be supported by the suspension so that the suspension can do its job. I may be misunderstanding your design, however.<BR/><BR/>-T-Anonymoushttps://www.blogger.com/profile/01430999631335475434noreply@blogger.comtag:blogger.com,1999:blog-5431073759842036036.post-18401078984053461112007-11-15T13:47:00.000-06:002007-11-15T13:47:00.000-06:00I was wondering something about the wing... as you...I was wondering something about the wing... as your speed goes up, a fixed wing is going to gradually generate an increased amount of downforce and drag. Is that desirable? I wonder if somehow a wing could be devised that would feather off at higher speeds to reduce downforce (but not eliminate it) as speed increases to keep a more constant downforce. It probably overcomplicates things, but it is just a thought. I was also wondering about ways to generate a vacuum underneath as F1 racers do to draw a car down. You are the aerospace guy, though. I am just a hobbyist. <BR/><BR/>-T-Anonymoushttps://www.blogger.com/profile/01430999631335475434noreply@blogger.comtag:blogger.com,1999:blog-5431073759842036036.post-62336649346228783222007-10-17T21:35:00.000-05:002007-10-17T21:35:00.000-05:00I don't know how you came up with that. If you can...I don't know how you came up with that. If you can show me how its not going to work, let me know. Otherwise, I'm just wasting my time!Nick Maslowskihttps://www.blogger.com/profile/04461306734496559622noreply@blogger.comtag:blogger.com,1999:blog-5431073759842036036.post-64021976903464872652007-10-17T01:19:00.000-05:002007-10-17T01:19:00.000-05:00aside from the tires easily get rip, it won't run ...aside from the tires easily get rip, it won't run as fast as nic case's, as long as it uses the direct drive motor to wheels principle.Anonymousnoreply@blogger.com