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About Mark Janus
(Top Expert on this page)

Expertise
I can answer questions regarding aerodynamics, fluid flow, and computational simulations.

Experience
turbomachinery flow analysis, computational fluid dynamics

Organizations
Mississippi State University

AIAA

SIAM

Education/Credentials
Ph.D. in Aerospace Engineering

   

You are here:  Experts > Science > Aerospace/Aviation > Aerospace/Aviation

SubjectDate AskedExpert

Early jetliner wings11/10/2008Marc Ebelini
  Q: The early jet airliners tended to have clean wings, both on the top and underside except for the ...
  A: While I don't have any detailed information to answer your question because I never worked for ...
which direction ?11/5/2008Lucky
  Q: I am a freshman at Morehead state university, in Morehead Kentucky. I’m undeclared in my major, but ...
  A: Christina-- I had a few Captains tell me that it would be a miracle for me to be a pilot. All I ...
BA and Alcohol10/28/2008David J Bentley
  Q: I am writing a paper on alcohol and aviation among North America and the U.K., I am wondering if ...
  A: Sorry Adrian, I don't know the precise regulation. Something is telling me it is no alcohol for 12 ...
United States Aviation Rules10/27/2008Lucky
  Q: I am writing an essay on the effects of alcohol, and the different rules that governing bodies have ...
  A: The rules are in FAR/AIM--you could probably find references on the internet somewhere. But the ...
Inquiry10/26/2008David J Bentley
  Q: I'm a medical student and i have recently applied for the Etihad cadet pilot program but I am quite ...
  A: Sorry, I am not an expert in this area, please try others. Regarding eyesight, I am not aware that ...
Avation10/20/2008Laura Laster
  Q: I hope you are fine as the same is with me here.I viggy from india is writing you the following ...
  A: An aircraft moves forward while taxiing as its propellers move air the same as they do while the ...
jobs in aeronautical engineerings10/20/2008David A. NewMyer
  Q: hi sir am studying in 11 grade and want to make my career in aeronautical engineering but i will be ...
  A: Darpan: Thanks for your question, I will try to assist. First of all, aviation is a cyclical ...
Aviation10/9/2008David A. NewMyer
  Q: I would like to know whats the difference between aerospace engineering and being a pilot! Is it ...
  A: No, going to the Air Force is not mandatory for engineering or for aviation. Yes, it is very ...
Aviation10/1/2008David A. NewMyer
  Q: I would like to know whats the difference between aerospace engineering and being a pilot! Is it ...
  A: Chantea: Thanks for your question....I will try to assist! Aerospace engineering has to do with ...
Employment - CV9/25/2008David A. NewMyer
  Q: I have qualified recently as a pilot. However, I am struggling with my CV. Can you tell me what ...
  A: Yvonne: I can not really answer too much of this question until I know more about what your ...
WHAT IF PROPELLERS STOP WORKING9/21/2008Laura Laster
  Q: I have a scnario which is not realistic but logical. Assumptions: 1. the Weather is extremely ...
  A: I will make a few assumptions of my own too: 1) We are talking about a multi-engine airplane (since ...
Personal Aerospace Projects9/20/2008Mark Janus
  Q: Greetings Mark, I was wondering if you had any suggestions of personal aerospace projects or ...
  A: So sorry for the delay in getting back.... yours is a tough question to answer but about the best I ...
Future of 747-400 and A340 aircraft inhigh cost fuel environment9/18/2008David J Bentley
  Q: What is the future of old generation aircraft, specifically Boeing 747-400 and Airbus A340 aircraft ...
  A: Sorry for the late reply. A good question. So much about the aviation industry is uncertain at the ...
Aerospace Eng. UK or US9/14/2008Mark Janus
  Q: I wanted to know if is there any difference between the Aerospace engineering course in the UK and ...
  A: I'm really not qualified to answer this question (yet may be able to discover more by discussing ...
what master degree in aviation can a computer engineer have?9/11/2008Mark Janus
  Q: i am computer engineer i would like to have master degree in aviation field "i love aviation it is ...
  A: You could look into computational engineering (or computational science and engineering) as a ...
Interview questions9/8/2008Christopher McKenna
  Q: I have an assignment for my aerospace class in high school and was wondering if you would be willing ...
  A: 1. The FAA requires a college education, or a significant amount of experience, for example, being a ...
Soundwaves following passenger jet craft9/7/2008Mark Janus
  Q: I was on an evening walk tonight near the local airport, with a steady stream of mid-sized 2-engine ...
  A: Nathan, I'm not sure by your description, but you may have heard the jet reversing (after landing). ...
voith schneider propeller9/6/2008Mark Janus
  Q: I don't know if this question is in your specialty. Anyway, could you tell me about voith schneider ...
  A: You got me on this one... had never heard of them... so I googled it and apparently they're using ...
Aeronauticals8/31/2008Marc Ebelini
  Q: what is the relationship between aeronautical engineering and mechanical engineering and is it ...
  A: While my job is to answer technical questions I'll attempt to help you. Mechanical engineering is a ...
Mmo and Mdf8/30/2008Mark Janus
  Q: Vmo is defined as the max indicated airspeed /mach no which can be intentionally flown and at which ...
  A: Mcrit is the speed when sonic flow first appears shock waves (of significance) only form after ...
Mmo and Mdf8/30/2008Mark Janus
  Q: Vmo is defined as the max indicated airspeed /mach no which can be intentionally flown and at which ...
  A: Mcrit is the Mach number at which supersonic flow first appears on a body.... Mcrit occurs before ...
Post Graduation in Avionics8/25/2008David A. NewMyer
  Q: Sir, I'm presently pursuing my Electronics and Instrumentation Degree and have a keen interest in ...
  A: I will try to assist! First of all, I am not aware of any post graduate school offerings in ...
elevators8/21/2008Cal Taylor
  Q: ok i have these notes from my aerospace class THE ELEVATOR IS HINGED TO THE HORIZONTAL STABILIZER. ...
  A: Take a look at a diagram of an airplane. The elevator is the movable portion of the horizontal tail. ...
areonautical/aviation law8/20/2008Dottie Norkus
  Q: Hey Dottie. i am a student that's interested on aviation and i am about to take a course in ...
  A: Toni, Sorry, but since I am an airline pilot with no practical experience in Av Law, I cannot ...
Maximum speed of turboprop aircraft8/19/2008Laura Laster
  Q: This is a general question-I hope! I'd like to know if there is any turboprop aircraft that can ...
  A: The fastest turboprop aircraft ever built is the Tupolev Tu-95 bear, which according to Wikipedia ...
aero space jobs8/19/2008Mark Janus
  Q: sir, i am doing MS in aero space engineering.what are the job opportunities in this field? ANSWER: ...
  A: There are several companies that you have potential to work for... The big ones that come to mind ...
aero space jobs8/17/2008Mark Janus
  Q: sir, i am doing MS in aero space engineering.what are the job opportunities in this field?
  A: Without knowing what your specific focus is (eg aerodynamics, structures, flight mechanics, etc.) ...
Air_flow8/7/2008Mark Janus
  Q: Every time I watch some program about aerodynamics, when it comes to the question of how the ...
  A: Yes there are equations that tell us the relation between pressure and velocity... the equation is ...
Aviation8/5/2008David A. NewMyer
  Q: I'm thinking about being a pilot for one of the major airlines one day, and I was wondering if its ...
  A: ...I will try to assist. I think that the answer depends quite a bit on you and your interests. ...
aircraft switches7/29/2008Marc Ebelini
  Q: How do i interface an intercom to two kx 170b radios with speaker switch in system, existing wiring ...
  A: This becomes a tricky question because I have no idea of how it was originally wired. To begin with ...
Finishing my CPL thinking about JAA.7/28/2008David A. NewMyer
  Q: my name is Joseph 33 years old and very close to get my CPL and my CFI, I have two questions I would ...
  A: Joseph: Thank you for your question, I will try to assist! First of all, the question about ...
4 yr U for Intl student7/25/2008Dottie Norkus
  Q: which university in the us will you recommend for an international student who waants to offer a ...
  A: There are so many schools to pick from, there isn't just one I'd recommend. Your choice should be a ...
A&P school7/24/2008David A. NewMyer
  Q: I would like to know about A&P school,i like to get the A&P license. I'm also from outside US.Where ...
  A: I will try to assist! An Airframe and Power Plant license from the Federal Aviation Administration ...
Scholarship for Ghanaian7/14/2008Dottie Norkus
  Q: AM 23 years GHANAIAN HAVING A CERTIFICATE IN HND. ELECTRICAL/ELECTRONIC ENGINEERING. TO BE A PILOT ...
  A: Anna I have a database of flight scholarships for females at http://www.flightscholarship.info ...
Spool and card demonstration7/11/2008Mark Janus
  Q: and thanks for any help you can offer. I'm taking a fluid mechanics class, where the book mentions ...
  A: Yes, I see this is quite different than what I was envisioning... In this case, the air (pressure) ...
Spool and card demonstration7/11/2008Mark Janus
  Q: and thanks for any help you can offer. I'm taking a fluid mechanics class, where the book mentions ...
  A: If I understand the demonstration project, the spool is held with its axis (hole) vertical and the ...
job opportunities7/11/2008David A. NewMyer
  Q: I am taking aerospace engineering(bachelor degree) at USM,Malaysia.There are few prof. said no ...
  A: It is nice to hear from you, I will try to assist! I can understand why some professors would say ...
Aviation Employment7/9/2008David A. NewMyer
  Q: I am currently a Chief Flight Engineer and Chief of Operations in the Navy. I have led the ...
  A: The key thing with getting on with SIUC in terms of teaching for us is obtaining some sort of ...
Aviation Institute of Mechanics7/9/2008Marc Ebelini
  Q: My stepson is talking to people at Aviation Institute of Mechanics in Lawrenceville, GA. I am ...
  A: Sorry I don't know much about that school. However I will say that as an old vintage A&P mechanic as ...
Cessna 340 $/hr7/9/2008Dottie Norkus
  Q: I am looking for the price per hour for a Cessna 340 dry or wet??
  A: Peggy If you are looking for a RENTAL/CHARTER costs, the hourly rate would depend on the company ...

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Questions by
Active Experts:
Cal TaylorChristopher McKennaMark Smith
Capt PaulMark JanusLaura Laster
David J BentleyLuckyDottie Norkus
David A. NewMyerMarc Ebelini 

     
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