Despite powered flight’s mere century or so of development, it has come an awfully long way in that time. From frail craft of rag and tube to supersonic fighters of savage stealth, the range of creation seems to have only been limited by the imagination.
Yet within this sphere of rapid change and new frontiers, there have also been craft that have created their own legends. Whether in the form the Supermarine Spitfire’s classic lines, or the global reliability of the pioneering Douglas DC-3, certain aircraft have a means to charm their way into history, whilst others do not. Some have burst into the headlines announcing a revolution of sorts, while others have slowly endeared themselves through the years like a dependable friend. Occasionally, a machine will do both; the Boeing 747 is such an aeroplane.
I recently flew on the flight deck of the impressive Boeing 747-8 Freighter; an aircraft that has made a massive stride in extending the longevity of this already venerated aircraft. To add some context, it must be considered that the first Boeing 747 took to the skies on February 9th, 1969 and at the time represented a quantum leap from the already successful Boeing 707. Since that time nearly 1,500 have been built and variants have served in roles as varied as “Air Force One” to the aircraft used to piggy-back the Space Shuttle home. It changed the face of international travel and the bottom line for many of its operators. Yet despite such a tremendous history, it seemed that after 40 years its race may have been run as the Airbus A380 became the modern monolith and mammoth twin-jets began to stretch across many of the routes the 747 had called home. But the 747 still had one more card to play.
The 747-8 boasts a new wing, with both stylish and effective raked wingtips as well as engine and flight deck technology common to its younger stable-mate, the Boeing 787. In addition to the 747-8F freighter, there is the 747-8I ‘Intercontinental’ passenger version with a stretched fuselage and an increased fuel capacity compared to its 747-400 predecessor. The 747-8 is a modern, more efficient model of a proven performer that will see the type flying even further into the 21st Century.
Through the astute, ongoing adaptation of an established aircraft, the Boeing 747 has not only survived, but flourished, while other models have come and gone. In the beginning it was a wide-body revolutionary, with its upper deck and enormous capacity. However, its ability to remain at the top of its field is by every count equally impressive.
While the 747 has proven to be a giant in both name and nature, a team of aerospace engineers have been busily starting their own revolution at the opposing end of the slide rule. Far from a long range mammoth, they have been exploring the possibilities of air travel on a very small scale. However, the project is only small in terms of physical dimensions as its potential has this aircraft fighting well above its weight. This is no “Jumbo Jet”; in fact it is the “Puffin”.
Born from a Doctoral degree by aerospace engineer, Mark Moore, the Puffin is a concept aircraft designed to uplift a sole occupant. On the face of it, that doesn’t sound too special, however, consider that the craft is electrically powered and stands upright on four legs before lifting off vertically and transitioning into level flight with the pilot lying prone. Offering VTOL capability and reasonable horizontal flight performance in a manner reminiscent of the VF22 Osprey, this little bird packs a punch.
The Puffin is a far cry from the novel ‘rocket’ back packs that have emerged from time to time since the Germans first investigated the subject in World War Two. The pilot is enclosed and by virtue of its electric powerplant it is not only efficient, but stealthy. Being low on both noise and thermal signature, potential roles for the Puffin include the rapid deployment of elite troops and the delivery of supplies as an unmanned vehicle. Its quiet noise footprint would also render it desirable in a civil application as a personal transport.
With a basic weight well under 200 kg, including the 45kg battery, the Puffin has the ability to cruise around 140kt and sprint to 280kt. As with all electric vehicles, the battery technology is a limiting factor and gives the Puffin a range of only about 80 kilometres for the moment, but that is bound to improve along with the batteries. This is no longer the stuff of cartoons like ‘The Jetsons’, this is an emerging frontier with the evolving technology to support the concept. The first third scale unmanned Puffin is set to fly shortly and the interest in this project is bound to grow.
Behind the great aerospace advances are the men in the white coats with their vision and their science. In a field of endeavour so often associated with wings, gold bars and epaulettes, these ‘shadow men’ are the unsung heroes of the aerospace industry. They conjure the concepts and breathe life into them through uncompromising calculation. Without them, the 747 could not become a legend and the Puffin could not become reality. As a planet, we would never have heard the words about “one small step for a man...”
We were once told that the sky was the limit, but this has been proven not to be the case. As legends continue to fly farther and faster and new birds make their first tentative hops, it is worth considering the legacy of the men, women and machines that have gone before. For aviation, sometimes the way ahead will involve extracting one more dance out of a proven performer, while other tasks will call for an entirely new approach. As with so many aspects of life, the choice may come down simply to something old, something new.
Title image from NASA.