Some SSTO vehicles simply use very high pressure engines which permit high ratios to be used from ground level.

Some designs for SSTO attempt to use airbreathing jet engines that collect oxidiser and reaction mass from the atmosphere to reduce the take-off weight of the vehicle.

Some tanks and armoured vehicles are transportable by helicopter, dropped by parachute, or carried by air transport.

Some of these vehicles were among the last of a consignment of ex-Royal Navy armored cars that had been serving in the Middle East since 1915.

Some heavy metro infrastructures were built in Brussels, Antwerp and the Charleroi area, but these are currently used by light rail vehicles, and their conversion to full metro is not envisaged at present due to lack of funds.

Some use their contributions to buy vehicles, and provide volunteer drivers.

Some large operators also converted retired buses into tow bus vehicles, to act as tow trucks.

Some tanks and other tracked vehicles have bogies as external suspension components ( see armoured fighting vehicle suspension ).

Some of the roads in more rural area are rough and unpaved, and require a four-wheel drive vehicles.

Some MRAP vehicles have been known to become stuck or roll over much more readily due to their high center of gravity and overall larger size compared to the HMMWV.

Some vehicles are proofed against. 50 calibre bullets while others, such as Sweden's CV90, US Bradley M2A3 and Russia's BMP-3, can withstand frontal hits from 30 mm autocannon.

Some vehicles, such as the French VBCI, employ infra-red jamming flare dispensers.

Some vehicles mount more machine guns ; for example on the German Marder, one machine gun fires from the rear of the vehicle, and the Russian BMP-3 has two machine guns mounted in the hull facing forward.

Some new vehicles, such as the BTR-90 or Puma, come equipped with 30, 40, 76, or 81 mm grenade launchers.

Some types of anti-personnel mines can also damage the tracks or wheels of armored vehicles.

Some minivans were notorious for having problems with their transaxles, as the vehicles were substantially heavier than the sedans for which their powertrains were originally designed.

Some example are the Federal Protective Service, which patrols and protects government buildings ; the postal police, which protect postal buildings, vehicles and items ; the Park Police, which protect national parks, or Amtrak Police which patrol Amtrak stations and trains ..

Some police forces use unmarked or minimally marked cars for traffic law enforcement, since drivers slow down at the sight of marked police vehicles and unmarked vehicles make it easier for officers to catch speeders and traffic violators.

Some medical researchers have proposed restricting skateboarding to designated, specially designed areas, to reduce the number and severity of injuries, and to eliminate injuries caused by motor vehicles or to other pedestrians.

Some vehicles are mortar carriers and carry a mortar as a primary weapon.

Some Italian Western films were made as vehicles for musical stars, like Ferdinando Baldi's Rita of the West featuring Rita Pavone and Terence Hill.

Some vehicles can also be equipped with hydraulic or electric retarders which have an advantage of near silent operation.

Some reusable vehicles have been designed only for manned spaceflight, and these are often called spaceplanes.

Some states, such as Colorado, use a combination of laws and signs restricting speeds or vehicles on certain lanes to emphasize overtaking only on the left lane, and to avoid a psychological condition commonly called road rage.

Some 45 frequencies are assigned for use primarily by dominant Class 1, -- A or Class 1, -- B clear-channel stations, designed to operate with adequate power and to provide service -- both groundwave and ( at night ) skywave -- over large areas and at great distances, being protected against interference to the degree necessary to achieve this objective.

Some cases in evidence of the use of roleplaying for analysis may help explain the procedure.

Some of Thurber's curative methods involve strong potions of mixed metaphor, malapropism, and gobbledygook and are recommended for use only in extreme cases.

Some popular designs use the following types of ANOVA:

Some sources mention the use of an abacus called a nepohualtzintzin in ancient Mayan culture.

Some adaptations of the Latin alphabet are augmented with ligatures, such as æ in Old English and Icelandic and Ȣ in Algonquian ; by borrowings from other alphabets, such as the thorn þ in Old English and Icelandic, which came from the Futhark runes ; and by modifying existing letters, such as the eth ð of Old English and Icelandic, which is a modified d. Other alphabets only use a subset of the Latin alphabet, such as Hawaiian, and Italian, which uses the letters j, k, x, y and w only in foreign words.

Some amateur astronomers use home-made radio telescopes, while others use radio telescopes that were originally built for astronomy research but have since been made available for use by amateurs.

Some may suggest that it is probably advisable to use mouthwash at least an hour after brushing with toothpaste when the toothpaste contains sodium lauryl sulfate, since the anionic compounds in the SLS toothpaste can deactivate cationic agents present in the mouthrinse.

Some results in constructive set theory use the axiom of countable choice or the axiom of dependent choice, which do not imply the law of the excluded middle in constructive set theory.

Some abugidas use a special symbol to suppress the inherent vowel so that the consonant alone can be properly represented.

Some modern descendants of this culture often choose to use the term " Ancestral Pueblo " peoples.

Some of the Australians wanted to use Bodyline in retaliation, but Woodfull flatly refused.

Some hard science fiction stories use small ( possibly nano-sized ) paired wormholes dedicated to communication by means of a laser which traverses the wormhole.

( Some newer protocols, such as Kerberos and Active Directory use DNS SRV records to identify services by name, which is much closer to the AppleTalk model.

Some consider such use of the term " incorrect.

Some natural tolerance to habitual use of ayahuasca ( roughly once weekly ) may develop through upregulation of the serotonergic system.

Some reports and scientific studies affirm that ritualized use of ayahuasca may improve mental and physical health.

Some Protestant US military chaplains carry the Roman Rite version of the Anointing of the Sick with them for use if called upon to assist wounded or dying soldiers who are Catholics.

Some Nasheed singers avoid instruments in the background due to the opinion of certain scholars that their use is prohibited.

Some guns were suitable for dual-role anti-aircraft and field ( anti-tank ) use.

Some studies have found decreased life expectancy associated with the use of antipsychotics, and argued that more studies are needed.

Some doubts have been raised about the long-term effectiveness of antipsychotics for schizophrenia, in part because two large international World Health Organization studies found individuals diagnosed with schizophrenia tend to have better long-term outcomes in developing countries ( where there is lower availability and use of antipsychotics and mental health problems are treated with more informal, community-led methods only ) than in developed countries.

Some critics have also analyzed the use of alleged front organizations and conflicted patient " advocacy " groups funded by pharmaceutical companies that seek to set the mental health agenda, including the use of the law to force people to take antipsychotics against their will, often justified by claims about risk of violence.