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Research and Testing

Research and Testing temperatures; but the Hymatic plant will purify air at high pressure to a standard better than 3 parts per Research and Testing million of carbon dioxide and one part per million each of water and hydrocarbons. Apart from the local cooling of new electronic Equipment, Programmes, Techniques and Projects equipment, certain other operations may be carried out conveniently with air from this plant. These include the testing of 'clean' valves, controls and BLUE STREAK AT WOOMERA into one of two rectifier circuits. One circuit provides turbo-driven accessories, which do not require air a rectified voltage proportional to the quasi-true Lake Hart, a dry saltpan approximately 25 miles of such high purity. r.m.s. value of the input signal, the other a rectified from the rocket town of Woomera in South Australia, The removal of carbon dioxide is achieved with voltage proportional to the quasi-pcak value of the was on December 10, 1963, the scene of a successful soda-lime, of moisture by activated alumina and of input signal. The time constant of the peak reading static firing of a Blue Streak rocket vehicle similar to hydrocarbons by activated charcoal, and in addition, circuit can be set at 1, 10, 100 milli-scconds or 1 that which is to be used as the first stage of the three a small vessel of 'Molecular Sieve' is provided as a second. The input is passed to a switched sampling stage satellite launching vehicle being developed by circuit with a variable sampling rate from 0·1 to final safeguard. Designed to accept air from a normal the European Launcher Development Organization. 6,000 lb./sq. in. compressor, the system is still 10 pulses/sec. The signal is sampled at the pre­ That test firing, which lasted for 20 seconds, as in­ appropriate for use with oil-free compressors when it determined rale and the total number of samples dis­ tended, marked the successful completion of tests at is necessary to remove carbon dioxide, water vapour played on an electromagnetic counter. Each sample is Lake Hart to confirm the compatibility of the com­ and stray atmospheric contaminants. simultaneously compared with three preset levels; if plex ground installations with the Blue Streak Vehicle any one of these levels is exceeded a count is registered Provision is made for reactivation of the alumina by shipped from Great Britain to Australia in June last on its associated counter. heat and backflow purging with air which has been year. This particular Blue Streak rocket was developed partially cleaned in the first section of the plant. A Sampling may be continuous or over a fixed period specifically as a non-flight vehicle to ensure its early monitor panel allows a continuous check to be made determined by closing externally operated contacts. availability in Australia to perform these essential on air purity through a Hymatic type MC.10 liquefier Input frequencies between 10 c/s and 18 kc/s are ground proving trials. The successful firing is an under standard conditions. accepted, at levels from 0·1 V to 100 V r.m.s. or peak, important milestone in the initial 5 year programme of in three ranges; the d.c. input range is from 2 V to The plant embodies the results of many years of ELDO: it is particularly significant that this test research in high pressure air purification, particularly 11 V. The instrument responds to any transient signal firing has taken place within a few days of the date as regards materials, finishes and production processes with a rise time of not less than 600 micro-seconds. originally scheduled for the event more than a year which control the adsorpsion and desorpsion of An input limit control circuit with manual reset is ago. contaminants at interior surfaces. incorporated, which can operate a relay at a selected Prior to the arrival of the vehicle at Woomera, and level, the relay contacts being used to control ancillary since the foundation of ELDO in 1962, work has been equipment if required. PRECISION PRESSURE CONTROLLER proceeding concurrently in Great Britain and Aus­ The Type I466A statistical analyser measures Elliott-Automation's Precision Test Equipment tralia on this first phase of the ELDO Programme. 13½ x 10½ x 11 in. high overall and weighs only 15 lb. Division has developed an entirely new precision In Great Britain, the vehicle has been designed and is It operates from either mains or external battery pressure controller (Type 64D 1500) which combines being manufactured by Hawker S'iddeley Dynamics supply. in one instrument the ability to carry out a wide range Ltd. at their Stevenage factory, under the direction of of essential tests on aircraft equipment. It can simu­ the Ministry of Aviation. A complete test facility for HIGH PRESSURE AIR PURIFICATION PLANT late heights, rates of change of heights, speeds and the engines which are manufactured by Rolls-Royce, A high pressure air purification plant has been Mach numbers for testing the air-data systems and and the complete Blue Streak vehicles, has been developed by The Hymatic Engineering Co. Ltd., flight instruments of both present and future aircraft, established on a moorland site at Spadeadam, near Redditch, Worcs, and units are currently working in and is intended for flight-line checkout, cither on its Carlisle, and was used to proof fire the developmental their own plant and in aircraft factories. It has been own or in conjunction with automatic checkout equip­ vehicle before its despatch to Australia in June. designed to handle up to 15 cu. ft./min. of free air at ment, as well as for workshop and factory use. It is Meanwhile, in Australia, work has been proceeding pressures between 3,000 and 6,000 lb./sq. in. also a valuable accessory for aircraft simulators and to adapt the Lake Hart launching facilities to their ground rigs. role in the ELDO space programme, including modification to the launching pad, construction of The instrument is self-checking and will operate at preparation areas and modification of range in­ large load volumes and under high leakage rates. strumentation. Pitot and static pressures and rates of change can be set up automatically, or manually, by simple switch Whilst this work has been proceeding in Great controls, and thereafter are maintained automatically Britain and Australia, development of the other com­ by servo systems. ponent parts of the composite launching vehicle is The Type 64D 1500 precision pressure controller proceeding—the second stage rocket being developed was developed primarily for use in the aircraft in­ by France, the third stage rocket being developed by dustry, but is equally suitable for all other test applica­ the Federal Republic of Germany, and the satellite tions in which pressures have to be set and maintained test vehicle being developed by Italy. At the same time, with a high degree of accuracy and stability. the engineers of Belgium and Holland are busily engaged on the complex electronic systems for guiding the satellite into chosen orbits and extracting data by 25 MILLION FLYING HOURS WITH ROLLS- telemetry systems from the various launcher stages. ROYCE DARTS The large number of engineers working on the ELDO On December 4, Rolls-Royce Dart turboprop programme at Woomera will now proceed to prepare engines exceeded 25 million hours of civil operating the launching site to accept the first Blue Streak experience since this engine introduced propjet air flight vehicle. The way is now clear to flight test travel just over 10½ years ago. Darts have more early this year the Blue Streak rocket which is to experience by far than any other airline turbine be used as the first stage of the ELDO vehicle. engine and they are adding to this experience at the It is planned that the rocket will travel to a height of rate of over 11,000 engine hours a day. 150 miles and a ground range of approximately 1,000 Every day more than 65,000 passengers fly in miles during its 10 minutes flight from Lake Hart. Dart-powered airliners, predominantly Vickers Vis­ counts and Fokker/Fairchild F.27 Friendships, and STATISTICAL ANALYSER Dart-powered aircraft carry about one-fifth of all the passengers who fly each year on the world's airline The study of randomly fluctuating quantities, such routes. In all, 876 Dart-powered civil aircraft are in as noise, bearing loads or reservoir levels is usually service or on order; they have been chosen by over done on a statistical basis, the collection and analysis 210 operators in 60 countries. During the time that of the relevant data involving many time-consuming Dart-powered aircraft have been in operation they measurements over a prolonged period. If the quan­ have travelled a total of more than 1,650 million tity under investigation can be converted into an elec­ miles—equal to 68,750 journeys round the world. trical signal by a suitable transducer a very useful short-cut is provided by a new instrument, the Type TWIN GYRO PLATFORM ON R.A.F. POLAR 1466A Statistical Analyser made by Dawe Instruments MISSIONS Ltd., Western Avenue, Acton, London, W.3. The analyser is a fully transistorized instrument designed Sperry T.G.P.'s have been further proved during a to sample the amplitude variations of an applied recent scries of long-range navigation sorties in a signal over a period of time and to record the number Britannia aircraft of the College of Air Warfare, of times three preset levels have been exceeded. A Royal Air Force, Manby. The flights involved a total count of the total number of samples taken is also One of the uses of the air produced by this equip­ of more than 60 flying hours, some 40 of which were given; this includes samples whose amplitude has not ment is in the production of small quantities of liquid spent within the arctic circle. reached even the lowest of the three preset levels. air for the local cooling of new electronic equipment. Each sortie involved numerous course changes, Although originally designed for sound level analysis, This 'on the spot' cooling is particularly important much of the flight time being spent in close proximity the instrument is equally suitable for the statistical in sensitive infra-red detectors, parametric amplifiers to the magnetic north pole where conventional means analysis of vibration in the study of metal fatigue, to and some types of lasers and masers. of navigation by reference to the earth's magnetic obtain counts of 'interference' noise, for measuring As the air liqucfiers operate on the Joule-Thomp­ field becomes impossible. the occurrence and amplitude of switching transients, son principle of expansion through a very small Sperry T.G.P.'s have been specified by the U.S.A.F., for investigating dynamic loads on structures, and for orifice, air of an exceptionally high purity is required. R.A.A.F., N.A.T.O. and foreign Air Forces, in many similar purposes. The orifice would be blocked readily by dust or addition to the R.A.F., on account of their reliability The instrument operates on both a.c. and d.c. in­ gaseous contaminants such as water vapour, carbon and the very low drift rate offered of ± a quarter of a degree per hour. puts, a.c. signals being first amplified and then fed dioxide and hydrocarbons which solidify at low Aircraft Engineering http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Aircraft Engineering and Aerospace Technology Emerald Publishing

Research and Testing

Aircraft Engineering and Aerospace Technology , Volume 36 (2): 1 – Feb 1, 1964

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Publisher
Emerald Publishing
Copyright
Copyright © Emerald Group Publishing Limited
ISSN
0002-2667
DOI
10.1108/eb033841
Publisher site
See Article on Publisher Site

Abstract

temperatures; but the Hymatic plant will purify air at high pressure to a standard better than 3 parts per Research and Testing million of carbon dioxide and one part per million each of water and hydrocarbons. Apart from the local cooling of new electronic Equipment, Programmes, Techniques and Projects equipment, certain other operations may be carried out conveniently with air from this plant. These include the testing of 'clean' valves, controls and BLUE STREAK AT WOOMERA into one of two rectifier circuits. One circuit provides turbo-driven accessories, which do not require air a rectified voltage proportional to the quasi-true Lake Hart, a dry saltpan approximately 25 miles of such high purity. r.m.s. value of the input signal, the other a rectified from the rocket town of Woomera in South Australia, The removal of carbon dioxide is achieved with voltage proportional to the quasi-pcak value of the was on December 10, 1963, the scene of a successful soda-lime, of moisture by activated alumina and of input signal. The time constant of the peak reading static firing of a Blue Streak rocket vehicle similar to hydrocarbons by activated charcoal, and in addition, circuit can be set at 1, 10, 100 milli-scconds or 1 that which is to be used as the first stage of the three a small vessel of 'Molecular Sieve' is provided as a second. The input is passed to a switched sampling stage satellite launching vehicle being developed by circuit with a variable sampling rate from 0·1 to final safeguard. Designed to accept air from a normal the European Launcher Development Organization. 6,000 lb./sq. in. compressor, the system is still 10 pulses/sec. The signal is sampled at the pre­ That test firing, which lasted for 20 seconds, as in­ appropriate for use with oil-free compressors when it determined rale and the total number of samples dis­ tended, marked the successful completion of tests at is necessary to remove carbon dioxide, water vapour played on an electromagnetic counter. Each sample is Lake Hart to confirm the compatibility of the com­ and stray atmospheric contaminants. simultaneously compared with three preset levels; if plex ground installations with the Blue Streak Vehicle any one of these levels is exceeded a count is registered Provision is made for reactivation of the alumina by shipped from Great Britain to Australia in June last on its associated counter. heat and backflow purging with air which has been year. This particular Blue Streak rocket was developed partially cleaned in the first section of the plant. A Sampling may be continuous or over a fixed period specifically as a non-flight vehicle to ensure its early monitor panel allows a continuous check to be made determined by closing externally operated contacts. availability in Australia to perform these essential on air purity through a Hymatic type MC.10 liquefier Input frequencies between 10 c/s and 18 kc/s are ground proving trials. The successful firing is an under standard conditions. accepted, at levels from 0·1 V to 100 V r.m.s. or peak, important milestone in the initial 5 year programme of in three ranges; the d.c. input range is from 2 V to The plant embodies the results of many years of ELDO: it is particularly significant that this test research in high pressure air purification, particularly 11 V. The instrument responds to any transient signal firing has taken place within a few days of the date as regards materials, finishes and production processes with a rise time of not less than 600 micro-seconds. originally scheduled for the event more than a year which control the adsorpsion and desorpsion of An input limit control circuit with manual reset is ago. contaminants at interior surfaces. incorporated, which can operate a relay at a selected Prior to the arrival of the vehicle at Woomera, and level, the relay contacts being used to control ancillary since the foundation of ELDO in 1962, work has been equipment if required. PRECISION PRESSURE CONTROLLER proceeding concurrently in Great Britain and Aus­ The Type I466A statistical analyser measures Elliott-Automation's Precision Test Equipment tralia on this first phase of the ELDO Programme. 13½ x 10½ x 11 in. high overall and weighs only 15 lb. Division has developed an entirely new precision In Great Britain, the vehicle has been designed and is It operates from either mains or external battery pressure controller (Type 64D 1500) which combines being manufactured by Hawker S'iddeley Dynamics supply. in one instrument the ability to carry out a wide range Ltd. at their Stevenage factory, under the direction of of essential tests on aircraft equipment. It can simu­ the Ministry of Aviation. A complete test facility for HIGH PRESSURE AIR PURIFICATION PLANT late heights, rates of change of heights, speeds and the engines which are manufactured by Rolls-Royce, A high pressure air purification plant has been Mach numbers for testing the air-data systems and and the complete Blue Streak vehicles, has been developed by The Hymatic Engineering Co. Ltd., flight instruments of both present and future aircraft, established on a moorland site at Spadeadam, near Redditch, Worcs, and units are currently working in and is intended for flight-line checkout, cither on its Carlisle, and was used to proof fire the developmental their own plant and in aircraft factories. It has been own or in conjunction with automatic checkout equip­ vehicle before its despatch to Australia in June. designed to handle up to 15 cu. ft./min. of free air at ment, as well as for workshop and factory use. It is Meanwhile, in Australia, work has been proceeding pressures between 3,000 and 6,000 lb./sq. in. also a valuable accessory for aircraft simulators and to adapt the Lake Hart launching facilities to their ground rigs. role in the ELDO space programme, including modification to the launching pad, construction of The instrument is self-checking and will operate at preparation areas and modification of range in­ large load volumes and under high leakage rates. strumentation. Pitot and static pressures and rates of change can be set up automatically, or manually, by simple switch Whilst this work has been proceeding in Great controls, and thereafter are maintained automatically Britain and Australia, development of the other com­ by servo systems. ponent parts of the composite launching vehicle is The Type 64D 1500 precision pressure controller proceeding—the second stage rocket being developed was developed primarily for use in the aircraft in­ by France, the third stage rocket being developed by dustry, but is equally suitable for all other test applica­ the Federal Republic of Germany, and the satellite tions in which pressures have to be set and maintained test vehicle being developed by Italy. At the same time, with a high degree of accuracy and stability. the engineers of Belgium and Holland are busily engaged on the complex electronic systems for guiding the satellite into chosen orbits and extracting data by 25 MILLION FLYING HOURS WITH ROLLS- telemetry systems from the various launcher stages. ROYCE DARTS The large number of engineers working on the ELDO On December 4, Rolls-Royce Dart turboprop programme at Woomera will now proceed to prepare engines exceeded 25 million hours of civil operating the launching site to accept the first Blue Streak experience since this engine introduced propjet air flight vehicle. The way is now clear to flight test travel just over 10½ years ago. Darts have more early this year the Blue Streak rocket which is to experience by far than any other airline turbine be used as the first stage of the ELDO vehicle. engine and they are adding to this experience at the It is planned that the rocket will travel to a height of rate of over 11,000 engine hours a day. 150 miles and a ground range of approximately 1,000 Every day more than 65,000 passengers fly in miles during its 10 minutes flight from Lake Hart. Dart-powered airliners, predominantly Vickers Vis­ counts and Fokker/Fairchild F.27 Friendships, and STATISTICAL ANALYSER Dart-powered aircraft carry about one-fifth of all the passengers who fly each year on the world's airline The study of randomly fluctuating quantities, such routes. In all, 876 Dart-powered civil aircraft are in as noise, bearing loads or reservoir levels is usually service or on order; they have been chosen by over done on a statistical basis, the collection and analysis 210 operators in 60 countries. During the time that of the relevant data involving many time-consuming Dart-powered aircraft have been in operation they measurements over a prolonged period. If the quan­ have travelled a total of more than 1,650 million tity under investigation can be converted into an elec­ miles—equal to 68,750 journeys round the world. trical signal by a suitable transducer a very useful short-cut is provided by a new instrument, the Type TWIN GYRO PLATFORM ON R.A.F. POLAR 1466A Statistical Analyser made by Dawe Instruments MISSIONS Ltd., Western Avenue, Acton, London, W.3. The analyser is a fully transistorized instrument designed Sperry T.G.P.'s have been further proved during a to sample the amplitude variations of an applied recent scries of long-range navigation sorties in a signal over a period of time and to record the number Britannia aircraft of the College of Air Warfare, of times three preset levels have been exceeded. A Royal Air Force, Manby. The flights involved a total count of the total number of samples taken is also One of the uses of the air produced by this equip­ of more than 60 flying hours, some 40 of which were given; this includes samples whose amplitude has not ment is in the production of small quantities of liquid spent within the arctic circle. reached even the lowest of the three preset levels. air for the local cooling of new electronic equipment. Each sortie involved numerous course changes, Although originally designed for sound level analysis, This 'on the spot' cooling is particularly important much of the flight time being spent in close proximity the instrument is equally suitable for the statistical in sensitive infra-red detectors, parametric amplifiers to the magnetic north pole where conventional means analysis of vibration in the study of metal fatigue, to and some types of lasers and masers. of navigation by reference to the earth's magnetic obtain counts of 'interference' noise, for measuring As the air liqucfiers operate on the Joule-Thomp­ field becomes impossible. the occurrence and amplitude of switching transients, son principle of expansion through a very small Sperry T.G.P.'s have been specified by the U.S.A.F., for investigating dynamic loads on structures, and for orifice, air of an exceptionally high purity is required. R.A.A.F., N.A.T.O. and foreign Air Forces, in many similar purposes. The orifice would be blocked readily by dust or addition to the R.A.F., on account of their reliability The instrument operates on both a.c. and d.c. in­ gaseous contaminants such as water vapour, carbon and the very low drift rate offered of ± a quarter of a degree per hour. puts, a.c. signals being first amplified and then fed dioxide and hydrocarbons which solidify at low Aircraft Engineering

Journal

Aircraft Engineering and Aerospace TechnologyEmerald Publishing

Published: Feb 1, 1964

There are no references for this article.