Hypersonic Jet Can Fly From Sydney To London In Less Than Two Hours
Scientists in Australia have successfully tested a new type of jet aircraft capable of reaching speeds of more than seven times the speed of sound, bringing the possibility of hypersonic travel one step closer to reality.
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hope they have the terrorism thing under control with that.
I bet Australia won’t make a cent out of it
Shakes money into the dustbin
How does this related to the scram-jet?
/* fitted with a combustion engine that makes use of oxygen as its fuel. This helps make it significantly lighter compared to more traditional jets or rockets */
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It’s a scramjet.
http://hypersonics.mechmining.uq.edu.au/hifire
Terrible journalism from Techtimes.
dv said:
It’s a scramjet.
http://hypersonics.mechmining.uq.edu.au/hifire
Terrible journalism from Techtimes.
Look, I’d be happy with even a ramjet.
A scramjet can’t operate at all subsonic, and is horribly inefficient at Mach numbers below about 3 times the speed of sound. At the high Mach numbers planned for scramjets, the thermal heating of the aircraft skin is high enough to melt the metal.
A ramjet is capable of getting up to about Mach 6, and works most efficiently at speeds near Mach 3. Below about Mach 0.5 a ramjet generates little force and is very inefficient. So the SR-71 Blackbird uses an engine (the J58) that transitions from a turbojet at low speeds to a ramjet at high speeds.
So my ideal passenger aircraft has engines like the SR-71, and flies at Mach 3 or above a distance of 10,000 km without refueling.
“Roger Ramjet he’s our hero, fighting for our freedom …”
mollwollfumble said:
dv said:
It’s a scramjet.
http://hypersonics.mechmining.uq.edu.au/hifire
Terrible journalism from Techtimes.
It’s a scramjet.Look, I’d be happy with even a ramjet.
A scramjet can’t operate at all subsonic, and is horribly inefficient at Mach numbers below about 3 times the speed of sound. At the high Mach numbers planned for scramjets, the thermal heating of the aircraft skin is high enough to melt the metal.
A ramjet is capable of getting up to about Mach 6, and works most efficiently at speeds near Mach 3. Below about Mach 0.5 a ramjet generates little force and is very inefficient. So the SR-71 Blackbird uses an engine (the J58) that transitions from a turbojet at low speeds to a ramjet at high speeds.
So my ideal passenger aircraft has engines like the SR-71, and flies at Mach 3 or above a distance of 10,000 km without refueling.
“Roger Ramjet he’s our hero, fighting for our freedom …”
FWIW … “http://www.reactionengines.co.uk/space_skylon.html”: http://www.reactionengines.co.uk/space_skylon.html
mollwollfumble said:
dv said:
It’s a scramjet.
http://hypersonics.mechmining.uq.edu.au/hifire
Terrible journalism from Techtimes.
It’s a scramjet.Look, I’d be happy with even a ramjet.
A scramjet can’t operate at all subsonic, and is horribly inefficient at Mach numbers below about 3 times the speed of sound. At the high Mach numbers planned for scramjets, the thermal heating of the aircraft skin is high enough to melt the metal.
A ramjet is capable of getting up to about Mach 6, and works most efficiently at speeds near Mach 3. Below about Mach 0.5 a ramjet generates little force and is very inefficient. So the SR-71 Blackbird uses an engine (the J58) that transitions from a turbojet at low speeds to a ramjet at high speeds.
So my ideal passenger aircraft has engines like the SR-71, and flies at Mach 3 or above a distance of 10,000 km without refueling.
“Roger Ramjet he’s our hero, fighting for our freedom …”
ie. One and half times the speed, range and passenger capacity of the Concorde. Three times the speed of current passenger jets.
Spiny Norman said:
mollwollfumble said:
dv said:
It’s a scramjet.
http://hypersonics.mechmining.uq.edu.au/hifire
Terrible journalism from Techtimes.
It’s a scramjet.Look, I’d be happy with even a ramjet.
A scramjet can’t operate at all subsonic, and is horribly inefficient at Mach numbers below about 3 times the speed of sound. At the high Mach numbers planned for scramjets, the thermal heating of the aircraft skin is high enough to melt the metal.
A ramjet is capable of getting up to about Mach 6, and works most efficiently at speeds near Mach 3. Below about Mach 0.5 a ramjet generates little force and is very inefficient. So the SR-71 Blackbird uses an engine (the J58) that transitions from a turbojet at low speeds to a ramjet at high speeds.
So my ideal passenger aircraft has engines like the SR-71, and flies at Mach 3 or above a distance of 10,000 km without refueling.
“Roger Ramjet he’s our hero, fighting for our freedom …”
Try again …