Hiram Stevens Maxim
Hiram Stevens Maxim (1840–1914), American inventor living in England, notorious for inventing the Maxim gun, also worked on aviation as a member of the Aeronautical Society of Great Britain.
His brother, Hudson Maxim was also involved in aeronautics, among other scientific and literary interests.
Early work in aeronautics
Maxim inherited an interest in aeronautics to his father, who, he writes, was working on a helicopter design in 1856. The son began working on the same problem in 1872 and created his own helicopter design with "widely separated" screws. The main problem he describes running up against is heaviness of engine. He takes some credit for developing the modern type:[1]
[...] it is very gratifying to me to know that all the successful flying machines of to-day are built on the lines which I had thought out at that time, and found to be the best. All have superposed airplanes of great length from port to starboard, all have fore and aft horizontal rudders, and all are driven with screw propellers. The change from my model is only a change in the framework made possible by dispensing with the boiler, water tank, and steam engine.
Aircraft tests
Maxim wrote that "several wealthy gentlemen" approached him 1887 to ask if he could build a flying machine. He said he needed five years and ₤100,000. He used a whirling arm with 200' circumference, capable of 80mph in testing his designs. His experiments were well-publicized.[2][3]
Later he commented on his study process at the time:[3]
I found that there was a great deal of misunderstanding regarding the action of aeroplanes and also of screws working in the air. I procured all the literature available on the subject, both English and French, and attempted to make a thorough study of the question; but i was not satisfied, on account of the wide difference in the views of the rwiters and the conflicting formulæ that were employed. I therefore decided to make experiments myself, and to ascertain what could be done without the use of anybody's formula.
After a series of whirling arm tests:[4]
I appreciated fully that I had made a machine that lifted 2,000 lbs. more than its own weight, and I knew for a dead certainty if I took the matter up again, got rid of my boiler and water tank, and used an internal combustion engine, such as I thought I could produce, that mechanical flight would soon be a fait accompli.
Chanute reprinted a letter from Maxim to the New York Times in November 1890:[5]
I would say that among the large number of societies to which I belong in England, the Aeronautical Society is one, and need I say that I am the most active member? At the present moment experiments are being conducted by me at Baldwin's Park, Bexley, Kent, England, with a view of finding out exactly what the supporting power of a plane is when driven through the air at a slight angle from the horizontal. For this purpose I constructed a very elaborate apparatus, provided with a great number of instruments, and arranged in such a manner that I can ascertain accurately the 'efficiency of a screw working in air. the amount of power required to drive a screw, the amount of push developed by a screw, the amount of slip, and also the power required for propelling planes through the air when placed at different angles, as well as to ascertain the friction and all other phenomena connected with the subject. I have been experimenting with motors and have succeeded in making them so that they will develop I horse power for every 6 lbs. My experiments show that as much as 133 lbs. may be sustained in the air by the expenditure of 1 horse power; of course. it is premature now to express any opinion; still, if I am not very much mistaken, and if some new phenomenon, which I do not understand, does not prevent it, I think I stand a fair chance of solving the problem, and I think I can assert that within a very few years some one--if not myself, somebody else--will have made a machine which can be guided through the air, will travel with considerable velocity and will be sufficiently under control to be used for military purposes. I have found in my experiments that it is necessary to have a speed of at least 30 miles per hour, that 50 miles is still more favorable, and that 100 miles would seem to be attainable. Everything seems to be in favor of high speed.
Whether I succeed or not, the results of my experiments will be published, and as I am the only man who has ever tried the experiments in a thorough manner with delicate and accurate apparatus, the data which I shall be able to furnish will be of much greater value to experimenters hereafter than all that has ever been published before.
Maxim developed a steam-powered aircraft with a 48' main aeroplane and five pairs of wings. He subsequently built a larger version 100' long and 35' tall. The 363-horsepower engine used petroleum to power two helical propellers at 400 rpm.[6]
On 31 July 1894, Maxim tested the latter craft, which briefly lifted from tracks up into the air, when a propeller broke and forced an immediate landing.[7][8] The wheels of this machine were fitted with dynagraphs to measure load.[9] (By another account Maxim landed deliberately to avoid an unexpected and dangerous uncontrolled flight.)[10]
In 1896, he built the world's largest wind tunnel, 12' x 3' x 3', with a 100 horsepower steam engine capable of producing 50mph wind.[11]
Eager produce empirical data about friction, lift, and drift, he conducted tests using aeroplanes of different materials, including a smooth (low-friction) brass plane, 1 foot in width.[12]
Later work
He testified on the future of flight before a subcommittee of Britain's Committee of Imperial Defense.[13]
In 1909, Maxim left his munitions company for a new aeronautics company called the Grahame-White, Blériot, and Maxim Company with ₤200,000 total authorized capital.[14]
Also in 1909 Maxim published Artificial and Natural Flight, a book on the mechanics of flight which stridently asserts the wrongness and even absurdity of much contemporary aeronautical physics.[15]
Patent FR-1912-443849, associated with Vickers Limited, makes priority date reference to Patent GB-1911-8220, of Hiram Stevens Maxim. The related British patent data gives Hiram as a “Sir Hiram Stevens Maxim, Chevalier of the Legion of Honour, Civil, Mechanical and Electrical Engineer, of “Ryecotes”, Dulwich Common, in the County of London”.[16]
Patents whose inventor or applicant is Hiram Stevens Maxim or H. S. Maxim
- Patent GB-1892-19254 (English title: Water-tube boilers)
- Patent US-1884-295784 (English title: Gas engine, Supplementary to patent: Patent FR-1883-153138, Filing date: 1883-06-13)
- Patent GB-1889-10359 (English title: Steam engine, Filing date: 1889-06-25)
- Patent GB-1889-16883 (English title: Altitude control for flying machine, Filing date: 1889-10-25)
- Patent DE-1890-59879 (English title: Aircraft, Filing date: 1890-07-01)
- Patent DE-1890-59879 (English title: Aircraft, Filing date: 1890-07-01)
- Patent GB-1891-19228 (English title: Flying machine, Filing date: 1891-11-06)
- Patent GB-1893-10852 (English title: Aerial machines without aerostats, Filing date: 1893-06-02)
- Patent GB-1897-10620 (English title: Flying Machines, Filing date: 1897-04-28)
- Patent GB-1903-15748 (English title: Rotating Cars or Roundabouts for Public Recreation or Experimental Purposes, Filing date: 1903-07-16)
- Patent GB-1904-3120 (English title: Roundabouts, Filing date: 1904-02-08)
- Patent GB-1908-20038 (English title: Flying Machine, Filing date: 1908-09-23)
- Patent GB-1911-8220 (English title: Improvements in or relating to Bombs for use with Aeroplanes and other Flying Machines, Filing date: 1911-04-01)
Publications by or about Hiram Stevens Maxim or H. S. Maxim
- Maxim, 1891, Improvements in and relating to aëronautic apparatus (Simple title: Improvements in and relating to aëronautic apparatus, Journal: British Patents)
- Maxim, 1891, Aerial navigation, The power required (Simple title: Aerial navigation, The power required, Journal: Century Mag.)
- Maxim, 1892, The aeroplane (Simple title: The aeroplane, Journal: Cosmopolitan Mag.)
- Maxim, 1892, Progress in Aerial Navigation (Simple title: Progress in aerial navigation, Journal: Fortnightly Review)
- Maxim, 1894, The evolution of a flying machine (Simple title: The evolution of a flying machine, Journal: Boston Evening Transcript)
- Maxim, 1894, The development of aërial navigation (1) (Simple title: The development of aërial navigation (1), Journal: North Amer. Rev.)
- Maxim, 1894, Experiments in aeronautics (1) (Simple title: Experiments in aeronautics (1), Journal: Scient. Amer. Suppl. • Prac. Eng.)
- Maxim, 1894, The development of aerial navigation (2) (Simple title: The development of aerial navigation (2), Journal: Amer. Eng. R. R. Journ.)
- Riley, 1894, Mr. Maxim's flying machine (Simple title: Mr. Maxim's flying machine, Journal: Scient. Amer.)
- Maxim, 1895, Experiments in aeronautics (2) (Simple title: Experiments in aeronautics (2), Journal: Scient. Amer. Suppl.)
- Maxim, 1895, Experiments in aeronautics (Simple title: Experiments in aeronautics, Journal: Journ. of the Soc. of Arts)
- Publication 8232, 1895, A new flying machine. Maxim's experiments in aerial navigation (Simple title: Maxim's experiments in aerial navigation, Journal: Century Mag.)
- Maxim, 1896, Natural and artificial flight (Simple title: Natural and artificial flight, Journal: Aeronautical Annual)
- Maxim, 1897, Screw propellers working in air (Simple title: Screw propellers working in air, Journal: Aeronautical Annual)
- Maxim, 1898, Flying Machines and Ordnance (Simple title: Flying machines and ordnance, Journal: Scient. Amer. Suppl.)
- Maxim, 1900, The Zeppelin airship (Simple title: The Zeppelin airship, Journal: Aër. Journ.)
- Maxim, 1902, Conquest of the air. Romance of aerial navigation (Simple title: Conquest of the air. Romance of aerial navigation)
- Maxim, 1902, Aerial navigation by bodies heavier than air (1) (Simple title: Aerial navigation by bodies heavier than air, Journal: Aër. Journ.)
- Publication 84, 1902, Aerial navigation by bodies heavier than the air (Simple title: Aerial navigation by bodies heavier than the air, Journal: Aer. World)
- Alexander, 1902, The conquest of the air; the romance of aerial navigation (Simple title: The conquest of the air; the romance of aerial navigation)
- Hoernes, 1903, Die Luftschiffahrt der Gegenwart (Simple title: The airship of the present)
- Publication 8242, 1903, Maxim's opinions (Simple title: Maxim's opinions, Journal: Aer. World)
- Publication 198, 1903, Aeronautical Society of Great Britain (Simple title: Aeronautical Society of Great Britain, Journal: Aer. World)
- Castagneris, 1905, L'Istituto speciale di aerodinamica di Koutchino (Simple title: The special institute for aerodynamics at Koutchino and the worldwide technical development of aerodynamics, Journal: Bollettino della Società Aeronautica Italiana)
- Maxim, 1906, Recent experiments conducted by the Wright Brothers (Simple title: Recent experiments conducted by the Wright Brothers, Journal: Aër. Journ)
- Newcomb, 1906, Side-lights on astronomy and kindred fields of popular science (Simple title: Side lights on astronomy and kindred fields of popular science)
- Newcomb, 1906, Side-lights on astronomy and kindred fields of popular science (Simple title: Side lights on astronomy and kindred fields of popular science)
- Dienstbach, 1907, Practical air craft (Simple title: Practical air craft, Journal: Nav. the Air)
- Maxim, 1908, Artificial and natural flight (2) (Simple title: Artificial and natural flight (2))
- Maxim, 1908, Artificial and natural flight (1) (Simple title: Artificial and natural flight (1))
- Maxim, 1908, Aerial navigation by bodies heavier than air (2) (Simple title: Aerial navigation by bodies heavier than air, Journal: Flying)
- Hersey, 1909, Menace of aerial warfare (Simple title: Menace of aerial warfare, Journal: Century Mag.)
- Maxim, 1909, Le vol naturel et le vol artificiel, traduit de l'anglais par le Lieutenant-Colonel Espitallier (Simple title: Natural Flight and Artificial Flight, translated from English by Lieutenant-Colonel Espitallier)
- Maxim, 1909, The evolution of the modern aeroplane (Simple title: The evolution of the modern aeroplane, Journal: Travel and Exploration)
- Publication 3989, 1909, The elements of aviation (Simple title: The elements of aviation, Journal: Flight)
- McKinney, 1909, Some points in aëronautical engines (Simple title: Some points in aëronautical engines, Journal: Aër. Journ.)
Letters sent by Hiram Stevens Maxim or H. S. Maxim
- Maxim, 1892, Progress in Aerial Navigation
- Maxim, 1898, Flying Machines and Ordnance
- Maxim, 1909, Artificial and Natural Flight
Links
- Hiram Stevens Maxim on Wikipedia
- Maxim's autobiography, My Life (1915) at the Internet Archive
- Malcolm W. Browne, "100 Years of Maxim's 'Killing Machine'", New York Times, 26 November 1985 ("Maxim's airplane might well have flown before that of the Wright brothers, had it been powered by something lighter than a steam engine.")
Other data
- Address in 1897: 18, Queen's Gate Place, County of Middlesex
- Location in 1911: “Ryecotes”, Dulwich Common, in the County of London
Names | Hiram Stevens Maxim; H. S. Maxim |
---|---|
Birth date | 1840 |
Death date | 1910 |
Countries | US, FR, GB |
Locations | County of Middlesex, County of London |
Occupations | engineer, civil engineer, mechanical engineer, electrical engineer |
Tech areas | Heavier-than-air, Propulsion, Engine, Motor, Petroleum, acetylene, Frame |
Affiliations | Aeronautical Society of Great Britain, Vickers, Sons, and Maxim, Légion d'honneur |
Wikidata id |
References
- ↑ Maxim, 1909, Artificial and Natural Flight, pp. v–viii.
- ↑ Hallion, 2003, pp. 140–141.
- ↑ 3.0 3.1 Maxim, 1909, Artificial and Natural Flight, pp. 31–33; 62.
- ↑ Maxim, 1909, Artificial and Natural Flight, p. 75.
- ↑ Octave Chanute, Progress in Flying Machines (1894), Aeroplanes: Part XVI. Hallion, 2003, p. 140 reproduces some of this from Chanute. Database searches don't immediately reveal this letter; perhaps due to unreliable scanning.
- ↑ Banet-Rivet, 1898, L'Aéronautique, pp. 205–206.
- ↑ Hallion, 2003, p. 143.
- ↑ Zahm, 1944, p. 330. "In 1894 Maxim carried over 10,000 pounds off a level track in a steam multiplane having ample power but defective control. It flew some 300 feet with a crew of 3 men. With all accessories (boilers, pumps, generators, condensers, cooling water) his engines weighed but 8 pounds per horsepower. Had he copied Goupil's version of Henson's transport plane, he might have inaugurated the grand sport of exhibition stunts before the gasoline engine was well developed by the automotive industry."
- ↑ Scott, 1995, p. 102.
- ↑ Black, 1943, p. 37. "A speed of around 40 to 42 miles per hour was attained, whereupon the lifting effort of the huge craft became so great that it carried away a portion of the guard rail intended to keep it from making a free flight. Rather than risk a flight before he had everything properly prepared, Maxim sacrificed ambition to discretion and cu off the steam."
- ↑ Hallion, 2003, p. 144.
- ↑ Maxim, 1909, Artificial and Natural Flight, pp. 3–4.
- ↑ Hallion, 2003, p. 145.
- ↑ "Maxim leads air company", New York Times, 29 March 1911.
- ↑ See page 1 for a good example.
- ↑ Patent GB-1911-8220