From Spitfires to Airbus A380
At the start of November we exhibited at Advanced Engineering UK and within this wider group of events sat Aero Engineering 2012 which received a record attendance this year. We came away with some really valuable knowledge from the event and it prompted me to blog about this mammoth industry and how torque technology innovations have had such an impact.
Given the sometimes conflicting demands of aerospace for unparalleled safety, whilst keeping weight to a minimum, no other industry has a greater need for control when using threaded fasteners.
Norbar has been at the forefront of supplying torque equipment for the aerospace sector since WWII, when we supplied wrenches for the Rolls Royce Merlin engines that powered most of Britain’s fighters and bombers.
Norbar produced its first torque wrenches specifically to help Rolls Royce engineers deal with the problem of uneven tightening of the cylinder head which leads to distorted cylinder bores. In fact, several companies were licensed to build the Merlin engine to mitigate the risk of one or more of the factories being bombed. This would have increased the need to standardise methods of making the engines and eliminate areas of potential quality problems.
Precision remains a key factor in aerospace and is at the heart of everything we do at Norbar. The starting point is our UKAS accredited torque calibration laboratory which has an accredited range from 0.005 N.m to 108,500 N.m. Every calibrated product that we make is traceable back to the laboratory and the laboratory equipment itself is traceable to international standards for length and mass (the components of torque). Prior to 2004 the Federal Aviation Authority demanded NIST (National Institute of Standards and Technology) traceable certificates for torque equipment. On 2nd March 2004 NIST confirmed to the FAA that certificates from laboratories accredited by a member of the Mutual Recognition Agreement (MRA) are equivalent to NIST. As Norbar’s laboratories in the UK, Australia,
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