Thrust Definition and 333 Threads

Hey people, I've started a group undergrad project that involves designing, and probably building I hope, an addition to a small jet engine, for thrust vectoring. I got a few ideas already, but of course a few more from all the jet enthusiasts out there won't hurt. :smile: More specificly we...

thrust calculation... am doing an analysis with the aero modelling as part of my project... i need to calculate the thrust force of the aero...i have the propeller diameter and rpm...i need the air velocity that comes out from the propeller to calculate the thrust... but i don't know how to...

hi frnds,, i want to present a seminar on thrust vectoring,but apart frm very superficial stuff,i am not getting anything frm d net.can neone help me regarding dis..

1. Homework Statement A model rocket of mass 4.8 x 10^2 g accelerates vertically upward at 34.m/s2. Calculate the thrust force applied by the rocket if the air resistance is 2.4N 2. Homework Equations F=ma? 3. The Attempt at a Solution Converted into SI rocket mass = 0.48g...

can anyone confirm this equation?? Prop. Thrust there are many websites that calculate propeller Thrust, and they never show any formulas for it... and i somehow manage to find the formula from NASA website, but when i compare the result with each other, i get totally different numbers...

Homework Statement Calculate the engine thrust required to produce an acceleration of 4 m/s^-2 in a jet of mass 800 kg as it takes off along the runway. The air resistance is 500 N Appreciate if anyone can check if I have used the correct equation, and my answer. Homework Equations F - R...

:confused: I am working on a project where I need to understand flight physics. I am having some trouble getting the whole torque vs power vs thrust thang. I'm basing my project off a existing ultralight, the LightSport Ultra from Free Bird Innovations. Here are the specs: 530lbs...

The F22 raptor has an approximate 2:1 thrust to weight ratio. It can climb vertically and stand on its tail in a hover. Vertical acceleration is given by: Thrust - Drag - Weight = mass * acceleration (aka gravity). The opposing force to thrust involves an acceleration due to the force of...

How does thrust work? Another question about top gun, I did some research on the F-14 tomcat and the Max takeoff weight: 72,900 lb, how does this relate to the amount of thrust needed. The turbofans generate 13,810 lbf dry, 27,800 lbf with afterburner (72 kN / 126 kN) each. I don't understand...

Hello All, I am building an ROV and would like to use bilge pumps for the thrusters. I would like to calculate the thrust that a prospective pump is going to create so as to decide which pump to buy. I know that the pump can output 1250 gallons per hour and has a nozzle with a 2" diameter...

Don't laugh guys, but I'm familiar with a lot of general astronomy stuff but my question will seem very stupid.,:cry: About rockets, etc. I was thinking today (dangerous) and realized I don't know the answer to: Samples: (hypothetical) 1. Space shuttle and all weighs 5 million pounds and...

I've been thinking about how to calculate how to find maximum thrust. But I can't find any equations for flow rate and pressure and area. I know that thrust is a force and force is mass x acceleration. But I don't know how id get an acceleration. There's an exit velocity at the nozzle of the...

I am trying to get my mind around concept of Velocity verses Static Pressure in simple terms. Using a hovercraft as our topic model, I understand that high static pressure is desired for the lift system, and high velocity for the thrust system. Therefore it's nice two have two systems one...

I'm tyring to find the formula that is used to calculate rocket thrust. Thanks Serena

when you walk the reaction of your thrust is the Earth going very slightly in the other sense but how can an ice skater that having the skates perfectly parallel while thrusting pushes sidewards and advances forward besides taking into account that being the skates parallel the longitudinal...

can anyone tell me how to calculate thrust for a model airplane. i know the propeller size and pitch and also the engine power and RPM. Any help would be much appreciated regards reg_ram

A space-research rocket stands vertically on its launching pad. Prior to ignition, the mass of the rocket and its fuel is 1.9 X 103 kg. On ignition, gas is ejected from the rocket at a speed of 2.5 X 103 m/s relative to the rocket, and fuel is consumed at a constant rate of 7.4 kg/s. Find the...

Hi guys… there was a lot of arguing in my class when my teacher gave us this one assignment question that I’m not too sure about. It goes as follows… A Polar Lander somewhere above the surface of the Mars is landing with a deceleration of 23m/s^2. If the Lander itself had a mass of...

At launch, the space shuttle’s engines develop 3.0 * 10^7 N of thrust. If the speed of the exhaust gasses is 15 km/s, what mass of gas is exhausted per second? F=ma\Rightarrow m=\frac{F}{a} kg=\frac{kg\cdot m/s^2}{m/s^2} kg=\frac{kg\cdot m/s^{\rlap{--} {2}}}{m/s^{\rlap{--}...

What is Thrust Vectoring and its applications? Does anyone who can explain it ?

I was wondering how I could find out the thrust, any any other interesting facts about my model rocket motor, but maily the inpulse/thrust. Here is what I know/can measure: -mass of propelant and whole motor assembly -type of propelant (aswell as full expected reaction of propelant as it...

I am playing around here at home and was thinking about how thrust works. This is assuming we are in space... Let's say I had a mass of 10 metric tons (including the engine) and an engine that produces 100kg of thrust (I don't know if you would refer to it in seconds, minutes, or hours). But...

Hi, Am wondering how to calculate the thrust and impulse thrust for gas escaping a pressure bottle - ie a scuba tank or the like. My maths is a lil shady so go easy on integration and such. Like say if I wanted 1MJ of energy output - what size bottle at what pressure with what nozzle...

I am just about to start my Aero. Eng. degree in a few days time and am currently ploughing my way through all the reccommended reading. A lot of it either gives textual explanations (rather than mathematical proofs or both) or gives a brief description, glossing over anything that may be...

Take two plates of a suitable material, and attach them at one end at a 90 degree angle, such that they form a V shaped assembly. The plates will block some of the vacuum flactuation frequencies inside the V, so a Casimir-like force will appear on the two plates. But since the plates are at an...

Sorry if this question is on the basic side, but i need some way of calculating the amount of thrust needed to propel a vehicle a quarter of a mile in 10 seconds. this vehicle is not built yet, but will be as light as possible, at a rough guess 300lbs with driver.

Does anyone know how to calculate the vertical thrust of 1.5 horsepower motor? I need some calculations for a project hovercraft and am wondering how much thrust is needed to lift 200 lbs. Also is thrust affected by fan blade size? Any help is appreciated, Thanks!

Need help with an ancient A lvl question. Just can't visualise the whole process even though I drew out the diagram A space research Rocket stands vertically on its launching-pad. Prior to ignition, gas is ejected from the rocker at a speed of 2.5x10^3 ms^-1 relative to the rocket, and fuel...

Hi there. I am trying to create a realistic physics simulation for testing thrust based hovering vehicle designs and i am stuck. I understand basic physics like moment of inertia and forces and the like but thrust is something i am having trouble with. Currently if i place a vertical...

I'm buildind a hover craft for a Physics project. I have built it, and am need ing to calculate how much thrust my leaf blower has to put out in order to lift me up, how do i do that? Same thing with forward movement, how do i figure out how much thrust it will take to move me forward if I'm...

A rocket is moving away from the solar system at a speed of 6.0 x 10^3 m/s. It fires its engine, which ejects exhaust with a speed of 3.0 x 10^3 m/s relative to the rocket. The mass of the rocket at this time is 4.0 x 10^4 kg, and its acceleration is 2.0 m/s/s. A) What is the thrust of the...

Hi I am helping someone with the aerodynamics to program a model aircraft flight simulator however my aero study has been aimed at radio controlled gliders so I'm a bit lacking on the power side of things. We need to relate power and thrust for various model aero engines. I did a static...

Hello, I'm interested in knowing which is the rocket engine of all that have been constructed to date that has major thrust The first in my list is the RD-170, that was used in the Energia launch vehicle, and is still used in the Zenith rocket. The RD-170 rocket engine has a nominal thrust of...