How do you calculate the specific impulse of a rocket?
Actual and effective exhaust velocity are the same in rocket engines operating in a vacuum. Specific impulse is inversely proportional to specific fuel consumption (SFC) by the relationship Isp = 1/(go·SFC) for SFC in kg/(N·s) and Isp = 3600/SFC for SFC in lb/(lbf·hr).
How do you calculate rocket engine thrust?
The force (thrust) is equal to the exit mass flow rate times the exit velocity minus the free stream mass flow rate times the free stream velocity.
How do you calculate specific thrust?
Specific thrust is the thrust per unit air mass flowrate of a jet engine (e.g. turbojet, turbofan, etc.) and can be calculated by the ratio of net thrust/total intake airflow.
What will happen to thrust and specific impulse as the rocket is propelled to higher altitudes?
What will happen to thrust and specific impulse as the rocket is propelled to higher altitudes? Explanation: Atmospheric pressure decreases with increasing altitude. So the pressure thrust part of the total thrust increases and hence the total thrust increases.
Why does rocket thrust increase with altitude?
At full throttle, the net thrust of a rocket motor improves slightly with increasing altitude, because as atmospheric pressure decreases with altitude, the pressure thrust term increases. Since ambient pressure changes with altitude, most rocket engines spend very little time operating at peak efficiency.
Why can’t we remake the Rocketdyne f1 engine?
In a nutshell, we can’t (and we shouldn’t) remake the mighty Rocketdyne F-1 engines because: Many of those skills and techniques which was used to build F-1 engines are no longer in use. So we simply don’t have the people and skills that can make them in the same way anymore.
What is the most powerful rocket engine ever made?
F-1 engine
What is the most powerful machine ever made?
Saturn V Moon Rocket
How fast can a human go without dying?
While the human body can withstand any constant speed—be it 20 miles per hour or 20 billion miles per hour—we can only change that rate of travel relatively slowly. Speed up or slow down too quickly and it’s lights out for you, permanently.
What is fastest thing on earth?
Laser beams travel at the speed of light, more than 670 million miles per hour, making them the fastest thing in the universe.
What is faster than a rocket?
Rockets definitely fly faster than jets. A supersonic airplane can fly faster than the speed of sound (1,236 kmh or 768 mph). The SR-71 Blackbird holds the record for fastest jet, flying at 3,418 kmh (2,124 mph).
Is a missile faster than a jet?
Missiles Vs Fighter Jets: Which Fly Faster? As the SR-71 Blackbird can achieve a maximum speed of Mach 3.2 during simple reconnaissance flight, this is completely reasonable. However, many missiles still are able to reach speeds much higher than that. For instance, the MIM-104 Patriot can reach speeds of 5 Mach!
Is a rocket faster than a bullet?
The rocket is almost 6 times faster. When fired, the rifle bullet travels toward the target, but gravity immediately begins pulling it downward.
Is a missile faster than a bullet?
Wall said the test missile was traveling 3,200 feet per second, which equates to 2,182 miles an hour. In comparison, a 9mm bullet travels at about 900 feet per second.
What is the fastest bullet?
220 Swift remains the fastest commercial cartridge in the world, with a published velocity of 1,422 m/s (4,665 ft/s) using a 1.9 grams (29 gr) bullet and 2.7 grams (42 gr) of 3031 powder.
Which jets are faster than sound?
Virgin Galactic has premiered a new jet design for high speed air travel: a streamlined, Concorde-esque delta-wing aircraft with capacity for nine to 19 people cruising at an altitude of over 60,000 feet. The super-fast jet will travel at Mach 3 — three times faster than the speed of sound.
How fast is the fastest jet?
2,100 mph
Does Tom Cruise actually fly a jet?
The star is actually a real pilot! Tom fell in love with aviation while filming the original Top Gun, which was released in 1986. He got his private pilot’s license in 1994 and has been active in the flying community ever since.
Can a civilian own a fighter jet?
So can any civilian buy a fighter plane? The answer is a surprising ‘yes! ‘. As soon as an airplane is demilitarized it can be bought by members of the general public.
What is the slowest plane in the world?
MacCready Gossamer Albatross
What country has the fastest fighter jet?
Soviet
What is the most expensive plane in the world?
1. B-2 Spirit Stealth Bomber – $2.1 billion. The B-2 Spirit is by far the most expensive aircraft ever built.
Why do planes not fly directly over the Pacific Ocean?
The primary reason airplanes don’t fly over the Pacific Ocean is because curved routes are shorter than straight routes. Whether a commercial airline is flying from the United States to Asia or elsewhere, it will have the fastest and most fuel-efficient flight by performing a curved rout.
Can a Boeing 777 fly on one engine?
Wide-body aircraft like the Boeing 777 are rated to fly for more than five hours on a single engine. Visit the Business section of Insider for more stories.
Can you smoke on a private jet?
Can you smoke on a private jet? The short answer is yes, although whether or not you can on a specific aircraft is determined on a case by case basis. If your preference is to enjoy a cigar, pipe or cigarette while you are in flight, we will arrange for an aircraft that allows smoking.