By David Wright
16 March 2012
This article was originally published on 38 North on ZOVIRAX FOR SALE, February 23, 2011. It has been reposted in light of DPRK's announced intention to launch a satellite in April 2012. Purchase ZOVIRAX online no prescription, Find more articles by David Wright here.
Last week press stories announced that North Korea had completed a second launch site for long-range rockets, which is bigger and more sophisticated than its original site. Tim Brown and Joseph Bermudez of globalsecurity.org found the new site, where to buy ZOVIRAX, called Tongch'ang-dong after a nearby town, ZOVIRAX pharmacy, using satellite images in 2008 and has been following its progress since then.
Previously, North Korea launched its multi-stage rockets from a site in Musudan-ri on the east coast of the country, ZOVIRAX forum, near the Sea of Japan. The most recent launch from that site was in April 2009 when the Unha-2 launcher failed to place a small satellite into orbit, ZOVIRAX FOR SALE. ZOVIRAX wiki, The new launch site is instead located on the west coast of the country (see Figure 1).
[caption id="attachment_2094" align="aligncenter" width="449" caption="Figure 1: This map shows the location of North Korea’s original launch site (Musudan) and its new site (Tonch’ang-dong), as well as South Korea’s Naro launch site."][/caption]
In addition to much improved roads and facilities, ZOVIRAX over the counter, several reports state that the new site has a significantly taller launch tower than the old site—50 versus 32 meters. (Brown suggests a more modest increase of 8 meters to a total height of 40 meters.)
Two interesting questions raised by the new site are: why the new location, and why the larger tower, online buying ZOVIRAX.
Why the New Location?
Why would North Korea build a new launch site on the west coast rather than modify its existing site. ZOVIRAX FOR SALE, Speculation on this point abounds, including:
(a) The new site is relatively close (100km) to the Sanum-dong long-range missile development center in Pyongyang, simplifying the transfer of missiles to the site.
(b) It is only 70 kilometers from the Yongbyon nuclear complex, and could therefore “reduce the time and cost for delivering nuclear warheads to the new launch site” if North Korea develops a warhead that can be delivered by long-range missile.
(c) The location “complicates U.S. Purchase ZOVIRAX online no prescription, airborne and seaborne surveillance and intelligence collection, because it is on the northern portion of the Yellow Sea between China and North Korea.”
(d) It reduces the incentive for an attack on the site since it is less than 50 kilometers from the border with China.
(e) It would reduce Japanese objections to rockets that overfly Japan since they would be launched from further west and would therefore be at a somewhat higher altitude as they passed over Japan.
(f) The location would allow North Korea to launch heavier payloads.
Both (e) and (f) can be discounted. My analysis of the Unha launch indicates it passed over the northern part of Japan at an altitude of some 400 kilometers, fast shipping ZOVIRAX. Launching from 400 kilometers further west, ZOVIRAX no prescription, which is the distance between the two launch sites, would only have increased that altitude by about 50 kilometers, which is unlikely to affect Japan’s view of an overflight, purchase ZOVIRAX for sale. Point (f) is simply incorrect.
The other points may be incentives for a new site, since the Musudan-ri site was relatively isolated, ZOVIRAX FOR SALE. ZOVIRAX duration, But the most compelling reason to me is the fact that this location allows North Korea to launch south and avoid overflying any country during its boost phase (see Figure 2). Pyongyang can argue this represents a more responsible approach to flight testing, and that it removes Japan’s objections about overflights, purchase ZOVIRAX online. Attempting to launch south from its original launch site would overfly South Korea. ZOVIRAX treatment, Moreover, since the flight path would be very similar to the trajectory that South Korean launches follow, Pyongyang can argue that objections to its launches represents an international double standard, buy ZOVIRAX without a prescription. ZOVIRAX FOR SALE, [caption id="attachment_2091" align="aligncenter" width="370" caption="Figure 2: Launch paths from North and South Korea. The white line shows the eastward launch path of North Korea’s Unha-2 in 2009 from its original launch site. Rx free ZOVIRAX, The yellow line shows the approximate path of South Korea’s 2009 and 2010 satellite launch attempts. The red line shows a similar path that launches from North Korea’s new launch site could follow."][/caption]
Launching south rather than east is not optimal for putting satellites in orbit since by launching east the rocket gains speed from the rotation of the Earth (about 0.3 kilometers per second in North Korea’s case—about 4% of the amount needed to reach orbit). Where can i order ZOVIRAX without prescription, Indeed, North Korea’s Taepo-dong 1 (1998) and Unha-2 (2009) were both launched due east (see Figure 2).
Some may argue that building a site to launch south indicates it is not intended for satellite launches, ZOVIRAX mg. But this argument is not compelling since Figure 2 shows that South Korea is also forced to launch satellites to the south because of the same geographic constraints. ZOVIRAX FOR SALE, Other examples are even more extreme; for example, because of the local geography, Israel launches satellites westward, meaning that the Earth’s rotation actually works against its launches. ZOVIRAX australia, uk, us, usa, So geographic constraints can lead to sub-optimal launch direction, and the new site could plausibly be used either for launching either satellites or testing ballistic missiles.
Why a 50-meter Tower?
Assuming reports of a 50-meter tower are correct, ZOVIRAX price, what might this imply. ZOVIRAX online cod, North Korea’s Unha-2 launcher was roughly 30 meters long. Since the tower at Musudan-ri where the Unha was launched is reportedly only slightly longer than this (32 meters), it suggests that a 50-meter tower could accommodate launchers well over 40 meters in length, ZOVIRAX blogs.
To put that in perspective, it’s useful to compare these lengths to rockets that use similar fuels to the Unha-2, which include some Chinese and Russian missiles and space-launch vehicles, ZOVIRAX FOR SALE. The Unha-2 is roughly the same size and mass (roughly 80 tons) as the first Chinese space-launch vehicle, Buy generic ZOVIRAX, the Long March 1, which used similar technology to the Unha. The Long March 1 and Unha are 2.25 and 2.4 meters in diameter, about ZOVIRAX, respectively. Purchase ZOVIRAX, The considerably more capable Long March 2 space launcher, as well as China’s DF-5 intercontinental-range ballistic missile, are only slightly longer than the Unha—32 to 33 meters, ZOVIRAX steet value. Their greater capability results from their larger diameter—3.35 meters—which allows them to carry much more fuel. ZOVIRAX FOR SALE, As a result, these rockets have a much larger mass than the Unha—180 to 190 tons. Doses ZOVIRAX work, The DF-5 can carry a three-ton warhead more than 10,000 kilometers. Similarly, ZOVIRAX dose, the Soviet SS-18 ballistic missile, No prescription ZOVIRAX online, which also uses storable liquid fuel, is roughly the same size as the DF-5, with a length of 32 meters, ZOVIRAX gel, ointment, cream, pill, spray, continuous-release, extended-release.
The more modern Chinese Long March 3 and 4 space launchers, Cheap ZOVIRAX no rx, which can carry heavier satellites into orbit, also have diameters of 3.35 meters, but are 42 meters long, where can i buy ZOVIRAX online.
As a result, ZOVIRAX brand name, if North Korea follows a typical path for developing missiles, it would not need a 50-meter tower to launch a long-range ballistic missile.
In principle it could attempt to build a missile with significantly more fuel than the Unha by continuing to use a 2.4-meter first stage, but increasing its length, ZOVIRAX FOR SALE. However, lengthening the Unha by 10 meters would give a very large length-to-diameter ratio, which can lead to structural instabilities when subjected to the large forces during launch. So it seems unlikely that a stretched Unha would approach 40 meters in length, and would therefore not require a 50-meter tower.
Given this, it seems that a tower of this size would only be required if North Korea planned to eventually develop and launch a space-launch vehicle like modern Chinese vehicles.
This may seem like a fantasy, and may well be one. But Pyongyang has long argued that it wants to develop and sell space-launch services. Building the tower may be one step of this process it can carry out any time soon.
The bottom line is that while North Korea may use its new launch site to develop ballistic missiles, neither its location nor the size of its tower seems to indicate that it was optimized for that purpose. In fact, both are consistent with its use for space launches.
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