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ma, sicuri che sia sperimentale ne hanno ordinati già NOVE di 747ABL e in fondo il progetto M.I.R.A.C.L.E per un laser ASAT è degli anni '80 forse intruder se lo ricorda
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AirBorne Laser Cominciati i test di una nuova arma antibalistica
#21
Scritto il 14 dicembre 2008 - 20:42
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Torna in alto
#22
Guest_intruder
Scritto il 14 dicembre 2008 - 20:44
Attento a non dimenticare la lista delle cancellazioni americane, dall'XB70 in poi...
#23
Scritto il 14 dicembre 2008 - 20:55
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Quota
ma, sicuri che sia sperimentale ne hanno ordinati già NOVE di 747ABL e in fondo il progetto M.I.R.A.C.L.E per un laser ASAT è degli anni '80 forse intruder se lo ricorda
Appunto fino a quando non entrerà in servizio operativo rimarrà ancora "Sperimentale"
Ho trovato un'altro link con molte informazioni in merito!
Airborne Laser
#24
Guest_intruder
Scritto il 03 giugno 2009 - 16:05
ABL Laser Gets MDA Nod Thus Far
Jun 3, 2009
By Amy Butler aviationweek.com
The director of the U.S. Missile Defense Agency (MDA) says he is pleased with the performance of the Airborne Laser’s (ABL) mission systems to date, but the 747-400F platform has recently had problems with flight worthiness.
U.S. Army Lt. Gen. Patrick O’Reilly says ABL’s laser has been fired and displayed atmospheric compensation beyond 100 kilometers (60 miles) 12 times, most recently in a test flight last weekend. The laser’s ability to compensate for particles in the atmosphere that can dissipate the laser energy is a key criterion to the success of the system.
Also, the system is able to assess what atmospheric compensation is needed within 1/100th of a second, O’Reilly says, a relevant result for operational use of a future ABL-type system. ABL’s mission is to lase the motor of boosting ballistic missiles in the boost phase of flight and destroy them.
O’Reilly says he is approaching ABL with a “three strikes” philosophy. First, the system will be tested against a Scud-type target as early as September (possibly slipping into October). If that is unsuccessful, he says he’ll try a shootdown again at year’s end. The final opportunity will be next spring. If each attempt results in failures, O’Reilly says he will have to brief Defense Secretary Robert Gates on whether and, if needed, how to proceed with the multibillion dollar effort.
Prior to the shootdown test this fall, engineers will be swapping out ABL’s optical system, adding new “second generation” optics that are more tolerant to contamination, O’Reilly says.
One challenge for the program is that its 747-400F platform “gets cranky,” he adds. Problems have emerged with the hydraulics and brakes of the aircraft, largely because it has been on the ground while the laser modules were being installed on the aircraft.
“After initial startup problems, the aircraft has returned to flight and is flying regularly,” according to Michael Rinn, vice president for Boeing’s ABL program. “We flew several times in the last week, which indicates the startup problems are rapidly going away,”
In the fiscal 2010 DOD budget request, Gates proposes keeping ABL as a research project only, eliminating any chance the system as designed will be fielded. O’Reilly concurs with that approach, adding that continuing tests on the chemical-laser system are useful for potential application to future systems.
Jun 3, 2009
By Amy Butler aviationweek.com
The director of the U.S. Missile Defense Agency (MDA) says he is pleased with the performance of the Airborne Laser’s (ABL) mission systems to date, but the 747-400F platform has recently had problems with flight worthiness.
U.S. Army Lt. Gen. Patrick O’Reilly says ABL’s laser has been fired and displayed atmospheric compensation beyond 100 kilometers (60 miles) 12 times, most recently in a test flight last weekend. The laser’s ability to compensate for particles in the atmosphere that can dissipate the laser energy is a key criterion to the success of the system.
Also, the system is able to assess what atmospheric compensation is needed within 1/100th of a second, O’Reilly says, a relevant result for operational use of a future ABL-type system. ABL’s mission is to lase the motor of boosting ballistic missiles in the boost phase of flight and destroy them.
O’Reilly says he is approaching ABL with a “three strikes” philosophy. First, the system will be tested against a Scud-type target as early as September (possibly slipping into October). If that is unsuccessful, he says he’ll try a shootdown again at year’s end. The final opportunity will be next spring. If each attempt results in failures, O’Reilly says he will have to brief Defense Secretary Robert Gates on whether and, if needed, how to proceed with the multibillion dollar effort.
Prior to the shootdown test this fall, engineers will be swapping out ABL’s optical system, adding new “second generation” optics that are more tolerant to contamination, O’Reilly says.
One challenge for the program is that its 747-400F platform “gets cranky,” he adds. Problems have emerged with the hydraulics and brakes of the aircraft, largely because it has been on the ground while the laser modules were being installed on the aircraft.
“After initial startup problems, the aircraft has returned to flight and is flying regularly,” according to Michael Rinn, vice president for Boeing’s ABL program. “We flew several times in the last week, which indicates the startup problems are rapidly going away,”
In the fiscal 2010 DOD budget request, Gates proposes keeping ABL as a research project only, eliminating any chance the system as designed will be fielded. O’Reilly concurs with that approach, adding that continuing tests on the chemical-laser system are useful for potential application to future systems.
Questo messaggio è stato modificato da intruder: 03 giugno 2009 - 16:07
#25
Guest_intruder
Scritto il 12 giugno 2009 - 16:13
The U.S. Missile Defense Agency (MDA) wants to explore putting Airborne Laser (ABL) technology on a smaller aircraft than its current jumbo jet platform, MDA's director said June 11.
The high-powered laser, designed to destroy an attacking missile shortly after launch during the boost phase, currently flies on a modified Boeing 747-400 freighter. Defense Secretary Robert Gates has vetoed the idea of acquiring another 747, saying the existing equipment should first be used as a research and development platform to prove the capabilities of the large laser technology.
"One thing I personally want to do and I know the engineering team has convinced themselves [of], is it can go on a smaller aircraft. So we're looking at that," Army Lt. Gen. Patrick O'Reilly told a Capitol Hill breakfast seminar hosted by the National Defense University Foundation.
The MDA director did not disclose details. A key question will be adapting the chemical oxygen iodine laser (COIL) to another platform, particularly one smaller than the 747. The six COIL modules at the heart of the current ABL's megawatt-class laser each are roughly the size of a Mini Cooper car, and altogether the size of a large sport utility vehicle.
O'Reilly cited the successful test of ABL's tracking system June 6 as evidence of the technology's viability. For the first time while airborne, ABL tracked a boosting missile with lasers that compensated for atmospheric conditions (Aerospace DAILY, June 3).
A test of ABL's ability to strike a missile in flight is not expected before late fall or winter. "I'm not going to allow it to fly until it's ready," O'Reilly said.
O'Reilly took responsibility for two other MDA programs that Gates curtailed in the fiscal 2010 budget request. He said he recommended terminating both the Multiple Kill Vehicle (MKV) and the Kinetic Energy Interceptor (KEI) programs.
MKV, aimed at increasing the chances of knocking down an attacking missile and thwarting its countermeasures, was a long-range research and development program with a capability targeted for around 2020, O'Reilly said. But MDA's focus should be on preventing the deployment of countermeasures rather than reacting to them after they were deployed, he added.
KEI, another boost-phase weapon that would collide with and destroy missiles close to launch, would probably not pass muster with recently enacted defense acquisition reform legislation, O'Reilly said, because not enough advance analysis was done for the program's life cycle. "There were significant integration problems," he added, because of KEI's size. For example, Aegis ships would have to reduce their firepower by 75 percent to accommodate the large interceptor. "And if you didn't put it on a ship, you're very restricted to the use of where you can put it on land," he said. That made KEI "extremely unattractive" for mass defensive launchings, O'Reilly said.
www.aviationweek.com
The high-powered laser, designed to destroy an attacking missile shortly after launch during the boost phase, currently flies on a modified Boeing 747-400 freighter. Defense Secretary Robert Gates has vetoed the idea of acquiring another 747, saying the existing equipment should first be used as a research and development platform to prove the capabilities of the large laser technology.
"One thing I personally want to do and I know the engineering team has convinced themselves [of], is it can go on a smaller aircraft. So we're looking at that," Army Lt. Gen. Patrick O'Reilly told a Capitol Hill breakfast seminar hosted by the National Defense University Foundation.
The MDA director did not disclose details. A key question will be adapting the chemical oxygen iodine laser (COIL) to another platform, particularly one smaller than the 747. The six COIL modules at the heart of the current ABL's megawatt-class laser each are roughly the size of a Mini Cooper car, and altogether the size of a large sport utility vehicle.
O'Reilly cited the successful test of ABL's tracking system June 6 as evidence of the technology's viability. For the first time while airborne, ABL tracked a boosting missile with lasers that compensated for atmospheric conditions (Aerospace DAILY, June 3).
A test of ABL's ability to strike a missile in flight is not expected before late fall or winter. "I'm not going to allow it to fly until it's ready," O'Reilly said.
O'Reilly took responsibility for two other MDA programs that Gates curtailed in the fiscal 2010 budget request. He said he recommended terminating both the Multiple Kill Vehicle (MKV) and the Kinetic Energy Interceptor (KEI) programs.
MKV, aimed at increasing the chances of knocking down an attacking missile and thwarting its countermeasures, was a long-range research and development program with a capability targeted for around 2020, O'Reilly said. But MDA's focus should be on preventing the deployment of countermeasures rather than reacting to them after they were deployed, he added.
KEI, another boost-phase weapon that would collide with and destroy missiles close to launch, would probably not pass muster with recently enacted defense acquisition reform legislation, O'Reilly said, because not enough advance analysis was done for the program's life cycle. "There were significant integration problems," he added, because of KEI's size. For example, Aegis ships would have to reduce their firepower by 75 percent to accommodate the large interceptor. "And if you didn't put it on a ship, you're very restricted to the use of where you can put it on land," he said. That made KEI "extremely unattractive" for mass defensive launchings, O'Reilly said.
www.aviationweek.com
#26
Scritto il 12 giugno 2009 - 16:22
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Su RID davano per morto questo programma insieme a quello dei KEI...
#27
Guest_intruder
Scritto il 12 giugno 2009 - 16:27
Dominus, su Jun 12 2009, 05:22 PM, ha detto:
Su RID davano per morto questo programma insieme a quello dei KEI...
RID non è infallibile, la lista di errori che hanno fatto in materia di previsioni è piuttosto imbarazzante e varia.
#28
Guest_intruder
Scritto il 18 giugno 2009 - 15:59
ABL Team Argues For More Testing Funds
Jun 18, 2009
By Michael Bruno aviationweek.com
Airborne Laser (ABL) industry executives are suggesting even more money in the FY ’10 Pentagon budget request and beyond is needed to fully prove their program’s military effectiveness, despite high-level Defense Department actions lately downgrading the embattled missile defense effort.
In a teleconference with reporters June 17, Boeing ABL Program Director Mike Rinn stressed that the Boeing-led industry team would like the opportunity and funding to show what they are convinced is ABL’s wider application. “We’re interested in going beyond the boost phase,” he said. “We see tremendous potential in what we’re doing.”
Still, Rinn acknowledged that a future ABL fleet, if pursued, may not resemble the modified Boeing 747-400 freighter that serves as the test aircraft now. A key challenge would be adapting the massive chemical oxygen iodine laser (COIL) to another platform, particularly one smaller than the 747, as defense officials have suggested since Defense Secretary Robert Gates announced this spring that the program was being limited to a research effort. Rinn said the erstwhile Tail 2, or second aircraft, which Gates is sidelining, was expected to help cut some weight and other aspects of the COIL.
But that was also eyed as a five-year effort, if not longer, in part because of the time it takes to build what was planned to be a 747-800. Rinn said the longer a Tail 2 is delayed, the more worried executives get about program suppliers disappearing. And a leap ahead in technology to shrink the COIL for an aircraft a fraction of the 747 was “probably not” going to happen, Rinn explained.
Meanwhile, the first of four congressional committees to weigh in on ABL’s future has sided with the Obama administration’s moves and 2010 request for $187 million. The House Armed Services Committee, controlled along with all of Congress by the Democrats, rejected several conservative members’ efforts to boost funding for ABL and other revamped missile defense programs like the intercontinental Ground-based Midcourse Defense system.
In their committee markup this week, Republicans said the technology needed to be pursued for its potential military requirement. Democrats responded that that is what they are doing by following Gates’ recommendation, and that nearer-term and theater-based threats need to be better addressed.
Jun 18, 2009
By Michael Bruno aviationweek.com
Airborne Laser (ABL) industry executives are suggesting even more money in the FY ’10 Pentagon budget request and beyond is needed to fully prove their program’s military effectiveness, despite high-level Defense Department actions lately downgrading the embattled missile defense effort.
In a teleconference with reporters June 17, Boeing ABL Program Director Mike Rinn stressed that the Boeing-led industry team would like the opportunity and funding to show what they are convinced is ABL’s wider application. “We’re interested in going beyond the boost phase,” he said. “We see tremendous potential in what we’re doing.”
Still, Rinn acknowledged that a future ABL fleet, if pursued, may not resemble the modified Boeing 747-400 freighter that serves as the test aircraft now. A key challenge would be adapting the massive chemical oxygen iodine laser (COIL) to another platform, particularly one smaller than the 747, as defense officials have suggested since Defense Secretary Robert Gates announced this spring that the program was being limited to a research effort. Rinn said the erstwhile Tail 2, or second aircraft, which Gates is sidelining, was expected to help cut some weight and other aspects of the COIL.
But that was also eyed as a five-year effort, if not longer, in part because of the time it takes to build what was planned to be a 747-800. Rinn said the longer a Tail 2 is delayed, the more worried executives get about program suppliers disappearing. And a leap ahead in technology to shrink the COIL for an aircraft a fraction of the 747 was “probably not” going to happen, Rinn explained.
Meanwhile, the first of four congressional committees to weigh in on ABL’s future has sided with the Obama administration’s moves and 2010 request for $187 million. The House Armed Services Committee, controlled along with all of Congress by the Democrats, rejected several conservative members’ efforts to boost funding for ABL and other revamped missile defense programs like the intercontinental Ground-based Midcourse Defense system.
In their committee markup this week, Republicans said the technology needed to be pursued for its potential military requirement. Democrats responded that that is what they are doing by following Gates’ recommendation, and that nearer-term and theater-based threats need to be better addressed.
#29
Scritto il 22 dicembre 2011 - 00:15
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In naftalina ....
Quota
Fonte: AviationWeek.com
Lights Out For The Airborne Laser
By Amy Butler (Dec. 21, 2011)
After nearly 16 years of development and more than $5 billion spent, culminating in a series of ballistic missile target engagements, the Pentagon has finally decided to mothball the Boeing-led 747-400F project known as the Airborne Laser.
The U.S. Missile Defense Agency is now looking toward a new generation of lasers that could operate on unmanned vehicles at very high altitudes owing to advancements in laser technology, power generation and beam control work made possible in part by the foundation laid in the ABL years.
The program was established by the U.S. Air Force in the 1990s with an aim of employing a multi-megawatt-class chemical oxygen iodine laser (COIL) to burn through the propulsion systems of boosting ballistic missile targets, sending the rockets and their potentially lethal payloads raining back down upon the area from which they were launched.
Despite finally shooting down its first target last year, ABL has cratered under the substantial funding required for its work, cost-prohibitive and improbable employment scenarios and, most recently, pressure on the Pentagon budget resulting from growing national debt.
Though ABL found itself on death row awaiting termination multiple times in the past decade, the industry team and MDA, which took over management of the program in 2001, managed to keep it alive. Finally, in February 2010, the ABL engaged and destroyed its first test target — a solid-rocket fueled Terrier Black Brant rocket. This was followed just more than a week later by another shootdown, this time of a liquid-fueled foreign missile target.
MDA Director Army Lt. Gen. Patrick O’Reilly is now focused on a new generation of laser systems with “much denser capability or greater power lasers in smaller packages and operating at much higher altitudes,” he told a gathering hosted by the Huntsville, Ala., Chamber of Commerce Dec. 12. This, he says, will simplify future designs.
“We do believe we are very close … within a few years of having a prototype that will actually operate out of an unattended air vehicle at very high altitudes,” O’Reilly said. “We basically have a horse race going on between several different technologies [and] all of them are very promising.” He predicts that “we have that capability to achieves something with a very high-altitude UAV over this decade.”
Details of this project were not provided by MDA.
Advances since the start of ABL in electric-powered solid-state lasers, however, are likely where the future lies if scientists manage to solve the problem of generating enough power for the lasers to have operational benefit at significant ranges and fired from small, mobile platforms.
Retaining skills
Meanwhile, not all of ABL is lost or mothballed. Boeing has recommended that MDA retain 20 engineers and scientists versed in beam control/fire control, jitter and platform dynamics disciplines “to ensure transfer of knowledge and lessons to future high-power directed-energy programs.
With the official demise of ABL, Boeing’s position in the missile defense market is even more dependent on its precarious, and potentially short-term, control of the Ground Based Midcourse Defense (GMD) ballistic missile shield program, which includes a global network of sensors and interceptors in Alaska and California.
MDA is competing the work, which has been exclusively handled by Boeing, and a source selection between Boeing/Northrop Grumman and Lockheed Martin/Raytheon is expected as soon as this month.
Given ABL’s end, if Boeing loses the GMD contract the company could find itself going from the prominent missile defense integrator in the U.S. to a mere supplier to its onetime rivals.
Lights Out For The Airborne Laser
By Amy Butler (Dec. 21, 2011)
After nearly 16 years of development and more than $5 billion spent, culminating in a series of ballistic missile target engagements, the Pentagon has finally decided to mothball the Boeing-led 747-400F project known as the Airborne Laser.
The U.S. Missile Defense Agency is now looking toward a new generation of lasers that could operate on unmanned vehicles at very high altitudes owing to advancements in laser technology, power generation and beam control work made possible in part by the foundation laid in the ABL years.
The program was established by the U.S. Air Force in the 1990s with an aim of employing a multi-megawatt-class chemical oxygen iodine laser (COIL) to burn through the propulsion systems of boosting ballistic missile targets, sending the rockets and their potentially lethal payloads raining back down upon the area from which they were launched.
Despite finally shooting down its first target last year, ABL has cratered under the substantial funding required for its work, cost-prohibitive and improbable employment scenarios and, most recently, pressure on the Pentagon budget resulting from growing national debt.
Though ABL found itself on death row awaiting termination multiple times in the past decade, the industry team and MDA, which took over management of the program in 2001, managed to keep it alive. Finally, in February 2010, the ABL engaged and destroyed its first test target — a solid-rocket fueled Terrier Black Brant rocket. This was followed just more than a week later by another shootdown, this time of a liquid-fueled foreign missile target.
MDA Director Army Lt. Gen. Patrick O’Reilly is now focused on a new generation of laser systems with “much denser capability or greater power lasers in smaller packages and operating at much higher altitudes,” he told a gathering hosted by the Huntsville, Ala., Chamber of Commerce Dec. 12. This, he says, will simplify future designs.
“We do believe we are very close … within a few years of having a prototype that will actually operate out of an unattended air vehicle at very high altitudes,” O’Reilly said. “We basically have a horse race going on between several different technologies [and] all of them are very promising.” He predicts that “we have that capability to achieves something with a very high-altitude UAV over this decade.”
Details of this project were not provided by MDA.
Advances since the start of ABL in electric-powered solid-state lasers, however, are likely where the future lies if scientists manage to solve the problem of generating enough power for the lasers to have operational benefit at significant ranges and fired from small, mobile platforms.
Retaining skills
Meanwhile, not all of ABL is lost or mothballed. Boeing has recommended that MDA retain 20 engineers and scientists versed in beam control/fire control, jitter and platform dynamics disciplines “to ensure transfer of knowledge and lessons to future high-power directed-energy programs.
With the official demise of ABL, Boeing’s position in the missile defense market is even more dependent on its precarious, and potentially short-term, control of the Ground Based Midcourse Defense (GMD) ballistic missile shield program, which includes a global network of sensors and interceptors in Alaska and California.
MDA is competing the work, which has been exclusively handled by Boeing, and a source selection between Boeing/Northrop Grumman and Lockheed Martin/Raytheon is expected as soon as this month.
Given ABL’s end, if Boeing loses the GMD contract the company could find itself going from the prominent missile defense integrator in the U.S. to a mere supplier to its onetime rivals.
#30
Scritto il 28 dicembre 2011 - 11:46
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Ragazzi scusate una curiosità : il Boeing 747-400F può abbattere ogni tipo di bersaglio aereo? 
#31
Scritto il 29 dicembre 2011 - 08:47
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In teoria credo che fosse i gradi di abbattere qualunque bersaglio.
se non ricordo male, è stato testatao in poligono anche contro bersagli al suolo.
Nella realtà, comunque, non credo che il sistema fosse dotato dell'agilità per inseguire, per esempio, un bersaglio in manovra con alte velocità angolari rispettop al vettore, inoltre la rifrazione causata dall'umidità nei bassi strati dell'atmosfera ne dobvrebbe ridurre di molto l'efficacia e la portata a bassa media quota.
Il sistema era nato e ottimizzato per colpire a partire da quote stratosferiche le testate missilistiche nemiche durante la traiettoria balistica, prima del rientro nell'atmosfera, e in quel campo di utilizzo poteva essere più efficace.
se non ricordo male, è stato testatao in poligono anche contro bersagli al suolo.
Nella realtà, comunque, non credo che il sistema fosse dotato dell'agilità per inseguire, per esempio, un bersaglio in manovra con alte velocità angolari rispettop al vettore, inoltre la rifrazione causata dall'umidità nei bassi strati dell'atmosfera ne dobvrebbe ridurre di molto l'efficacia e la portata a bassa media quota.
Il sistema era nato e ottimizzato per colpire a partire da quote stratosferiche le testate missilistiche nemiche durante la traiettoria balistica, prima del rientro nell'atmosfera, e in quel campo di utilizzo poteva essere più efficace.
#32
Scritto il 29 dicembre 2011 - 13:20
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gepiro66, su 29 dicembre 2011 - 08:47, ha detto:
In teoria credo che fosse i gradi di abbattere qualunque bersaglio.
se non ricordo male, è stato testatao in poligono anche contro bersagli al suolo.
Nella realtà, comunque, non credo che il sistema fosse dotato dell'agilità per inseguire, per esempio, un bersaglio in manovra con alte velocità angolari rispettop al vettore, inoltre la rifrazione causata dall'umidità nei bassi strati dell'atmosfera ne dobvrebbe ridurre di molto l'efficacia e la portata a bassa media quota.
Il sistema era nato e ottimizzato per colpire a partire da quote stratosferiche le testate missilistiche nemiche durante la traiettoria balistica, prima del rientro nell'atmosfera, e in quel campo di utilizzo poteva essere più efficace.
se non ricordo male, è stato testatao in poligono anche contro bersagli al suolo.
Nella realtà, comunque, non credo che il sistema fosse dotato dell'agilità per inseguire, per esempio, un bersaglio in manovra con alte velocità angolari rispettop al vettore, inoltre la rifrazione causata dall'umidità nei bassi strati dell'atmosfera ne dobvrebbe ridurre di molto l'efficacia e la portata a bassa media quota.
Il sistema era nato e ottimizzato per colpire a partire da quote stratosferiche le testate missilistiche nemiche durante la traiettoria balistica, prima del rientro nell'atmosfera, e in quel campo di utilizzo poteva essere più efficace.
Veramente io so che era concepito per colpire i missili durante la fase di boost, quando ancora stavano bruciando propellente.
#33
Scritto il 29 dicembre 2011 - 17:44
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Alpino, su 29 dicembre 2011 - 13:20, ha detto:
Veramente io so che era concepito per colpire i missili durante la fase di boost, quando ancora stavano bruciando propellente.
Hai ragione, ma immagino che tra i tempi per l'individuazione e tracciamento del bersaglio e l'ingresso nel raggio di portata utile del sistema l'intercettazione dovesse per forza di cose avvenire nella porzione esoatmosferica della traiettoria balistica, anche se ancora durante la fase propulsiva.
