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Development of aircraft and space vehicles. Propulsion, Aircraft Structures, Crafts, Atmosphere
Apr19-14 10:20 AM satchurated 
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Gear heads unite to discuss Vehicle Dynamics, Safety Engineering, Performance, NVH, Ergonomics, Durability...
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Mechanical Engineering

- Development of machines. Mechatronics, Robotics, Engines, Drafting
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Hi everyone, Maybe this resource is new for someone. It's a collection of videos made in the 60's by the very best...
Mar6-13 10:50 AM
61 78,974
Dear all, I checked job numbers on indeed Canada, and when using Pro/ENGINEER and solidworks as search words, I got...
Dec17-13 11:25 AM
21 22,179
Hello, I read this article about someone who made a hover bike prototype from a motorbike and two propellers. Best...
Jun15-11 07:47 AM
6 2,582
:confused: hi there, im building a hovercraft in my garage, so far it has gone perfect.... until i get to the thrust...
Jul31-09 12:44 AM
17 5,455
hey to u all can someone tell me how will i should estemate the force that i need to apply by the driver in order to...
Apr21-09 10:34 AM
1 3,425
I am trying to get my mind around concept of Velocity verses Static Pressure in simple terms. Using a hovercraft...
Aug21-06 11:38 AM
9 6,928
I am currently working with a foundation whose goal is to modify a hovercraft so that a wheelchair restricted person...
Oct14-10 06:35 AM
5 2,073
Hi there. I have got very good help from this forum in the past and I have yet another question. Take a square...
Apr20-05 04:56 AM
5 2,486
Hi friends, Can anyone please explain the how Lawn Sprinkler works. Thank You, Yaswanth
Jun7-11 01:07 AM
4 1,960
I'm getting approximations within 5% of the actual values. Does that sound about right?
Jan17-12 10:29 AM
2 981
The title here may not be descriptive enough....I know how pitot-static systems work: difference in total pressure...
Oct12-11 08:14 AM
0 1,151
How are jet engines cooled? I've seen diagrams of all different kinds of jet engines and I cannot find anything which...
Sep28-11 02:36 PM
13 5,647
undefinedWhat is the reliability and effectiveness of these softwares 1-ThermXL 2-ESATAN 3-ESARAD
Sep20-05 02:43 AM
0 1,538
I am a mechanical engineering graduate. working in Chennai. My question is regarding fluid flow from a tank. I...
Nov13-08 12:37 PM
28 3,884
Imagine a fuel tank that can store fuel at pressure (it can store at pretty high pressure also) without having any...
Dec17-09 09:05 AM
34 4,401 ...
Nov18-13 11:29 AM
2 402
An accelerating aircraft, in whatever direction, will move long distances. A flight simulator cannot move long...
Mar24-08 03:47 PM
25 3,400
Hi every one, i am a mechanical engineer working on a project hydraulic steering :smile:. i want...
Dec6-12 08:48 AM
11 1,820
So an electrical motor converts electrical energy to mechanical one. But an electric motor can just produce a single...
Mar15-12 01:30 AM
5 937
how can i calculate density of a liquid pumped in a closed circuit and i dont know the nature of it ???
Apr1-10 08:31 AM
3 685
Hi every body ,anyone can give me any idea about my Question !!
May10-07 05:06 AM
Arctic Fox
12 3,187
hi friends, I am confused with incompressible and compressible flow.Can i use moody diagram for air compressor.How...
Sep4-13 12:55 PM
4 698
How can I calculate the pitch of a hovercraft propeller, what variables do I need? How do I know how many blades must...
May16-10 02:19 AM
3 2,961
hello everybody, in fact,im asking for a help in a matter confused me alot,its about how can i select the right...
Jun1-10 08:38 AM
15 3,353
an ideal electric fan has: a constant supply of 0.49 HP (367.8 watt), 3 motor poles, 8 blades, radius of 36 cm. based...
Jan22-13 04:34 PM
3 964
I'm trying to figure out a solution to this design. I want to add a spring to this joint so it can flex up and down...
Feb4-13 03:53 PM
4 560
hi all, Just as the topic, I'm thinking a stepless dividing apparatus, for must be stepless, I couldn't lock it by...
Oct5-09 09:09 AM
12 971
hi.......... i want to know how can i make differential housing for climbing robot?...... i mean how should i...
Feb2-10 12:47 PM
0 987
I took an engine out of a snow blower (a 100cc-4hp-2 stroke) and was planning on hooking a turbine/fan assembly from a...
Apr10-09 07:21 AM
Ranger Mike
22 6,243
Through a driving simulator I want to establish the fastest lap possible. Here are the known variables, ...
Nov18-13 08:12 PM
8 573
how can i obtain the pump flow rate ??? is this done by filling a certin volume and measure time or there is another...
Apr12-10 12:01 PM
Su Solberg
2 662
How can I prove this equation: it is attached in a photo.
Apr27-13 06:52 PM
5 453
Hi I need to know how i can separate the water vapor from biogas i know that there is separation of H2S and Co2 ...
Mar31-14 03:14 AM
4 213
of a surface of a part that rotates about a pivot point such that there is rolling instead of sliding contact at the...
Aug25-13 01:55 PM
6 556
How can you calculate density from : altitude temperature and absolute humidity
May12-07 01:58 PM
3 6,591
REWRITTEN: Well if you're interested I have a tank (actually a PVC tube with an end cap) that has an interior...
Aug15-11 02:43 AM
8 2,513
This isn't a joke topic but don't we have the technology to make a flying car? What's the technology behind it anyway?...
Sep26-10 12:55 AM
6 2,985
Given simple apparatus, how could I detect an intermittent misfire on a spark ignited internal combustion engine? ...
Nov10-06 10:50 AM
29 2,731
Hi PFians Derailleurs are amazing devices used in bicycles...
Jan10-10 12:58 PM
R Power
0 2,344
Q: What kind of trajectory was used? And why was it used over the Hohmann transfer? The time of flight to the moon...
Feb10-08 03:40 PM
1 6,692
My father told me that when he was a child in the 1950s, his parents owned a natural gas powered refrigerator. He...
Dec12-13 04:09 AM
2 475
I am currently looking into how aeroplanes fly for a report which i am writing. I understand the theory behind the...
Mar31-12 08:23 PM
13 1,573

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