What is Drafting: Definition and 15 Discussions

Drafting or slipstreaming is an aerodynamic technique where two vehicles or other moving objects are caused to align in a close group, reducing the overall effect of drag due to exploiting the lead object's slipstream. Especially when high speeds are involved, as in motor racing and cycling, drafting can significantly reduce the paceline's average energy expenditure required to maintain a certain speed and can also slightly reduce the energy expenditure of the lead vehicle or object.

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  1. A

    Other Mechanical drafter moving to electrical engineering

    Hello, I'm currently working as a mechanical drafter a few years out of high school. I have a few different certifications in Solidworks, Inventor, AutoCAD, and also from the tech school I went. I've worked at my current job for about two years as a military contractor and have a security...
  2. Seth Allen

    Recommendations for an affordable 3D CAD for home use

    Hey! I hope this is the right place to post this. I'm looking for recommendations for a modeling/drafting cad program that is relatively affordable and capable. I have extensive experience with NX and Solidworks, but can't justify paying for either of those to simply use at home. My non-work...
  3. RoboNerd

    How are construction lines used in Autodesk?

    Hi everyone. I know that construction lines were used when drafting was done by hand. Now, we do everything on the computer. So, how are they used on the computer? Also, how are guidelines used in autodesk? Were they not used in manual drafting also? How are they used in computer drafting...
  4. LtIvan

    How to Design the Complex Shapes of a Rotary Engine

    Allo, this is my first post here. I must say this forum has everything not just Physics but Mathematics and Engineering, all my favorite things. Introduction: I would like to start with an introduction of a 'rotary engine' for those who don't know. Unlike the common boxer piston engine with...
  5. jmex

    Drafting: Exploring the Future of Piping Design

    Hello, I am working as a drafter more than a year now in a valve industry but always keen to learn more. I do like designing, fluid mechanics and thermodynamics and as a drafter I came to learn API. I want to know if piping design course is worth to undergo? I mean looking at current scenario...
  6. D

    Is Computer-Aided Drafting Useful for Nuclear Engineers?

    I'm interested in pursuing a Nuclear Engineering degree, and I was wondering if the job actually involves any drafting. I'm still a lowly undergrad, and far from a Masters, but I still have the opportunity to take such drafting classes now. Is it useful at all? I mean, the program I looked at...
  7. R

    Career in Mechanical Drafting?

    Hello all, I was wondering if anyone is or knows any Mechanical Drafters? I am trying to find out if it is a good career path. Also is there a demand for Mechanical Drafters or is work hard to find? I am trying to explore some new career options. I was thinking I would maybe start out with...
  8. S

    Drafting question: Views with different scales

    If I have a drawing (in this case, of a machined part) that's 1:2 scale, and I have a detail view that, in relation to the rest of the drawing, is 4:1, what do I put as the scale for the detail view? 4:1 (relative to the rest of the drawing), or 2:1 (relative to the real piece)?
  9. S

    Drafting question - weld symbol question

    Hey all, Not sure if things like this are dealt with here, but I'll give it a shot: I have a pipe with an outer "diameter A" (small) and a flange with an inner "diameter B" (large). Between them is a conical transition piece with the following characteristics: The OD of the cone at the small...
  10. B

    Drafting Question: What are auxiliary and sectional views?

    What are auxiliary and sectional views when making orthographic projections? I missed class today, so I would like if someone could explain their significance in drafting. P.S. I am drafting by hand, so no references to auto-CAD or SolidWorks please. BiP
  11. C

    How hard is Mech Engineering and how much drafting is there?

    Would you say Mech is one of the harder engineers? Most of the prospecting Mech students I know are incredibly smart. I'm probably going to be an average student going into there. Is the competition for a job really tough in Mech for me then? How much drafting is in it? How much is it by...
  12. Ranger Mike

    Two Car Cars Drafting: Exploring Air Resistance

    two car cars "drafting" As posted by Hootenanny on another topic..he kindly replied "the car also experience fluid resistance or drag. For large objects traveling at high speeds the magnitude of the drag force is considered to be proportional to the square of the velocity of the car." Is the...
  13. M

    Start a Drafting Business: What You Need to Know

    Does anyone here run a drafting business? I am in search of information on what I would need to start one, how it works, and all that and would appreciate reading about others personal experiences.
  14. D

    Where Can I Find Free Software for Simple Geometrical Drafting?

    Would anyone happen to know any free software available for download, which could allow me to quickly draft circles, quads, and label vertices, radii, etc. ? I have several other programs, but they simply take too much time. Thank you again.
  15. wasteofo2

    News Does the bill proposing re-instituting the draft include the drafting of women?

    Just curious about the contents of the bill (or proposal, or whatever it's called) about re-instituting the draft and whether women and men would have an equal chance of being drafted under it's provisions.