British Aircraft (British Klemm) B.K.1 Eagle
Легкий многоцелевой самолет British Klemm В.К.1 Eagle стал достаточно интересным созданием британских авиаконструкторов. Как и у его предшественника Swallow, конструкция В.К.1 Eagle была деревянная, с полотняной обтяжкой поверхностей управления. Самолет представлял
собой моноплан с трехместной кабиной и выпускаемыми вручную основными стойками шасси. В базовом варианте силовая установка включала один рядный двигатель de Havilland Gipsy Major в 130 л.е., с ним в начале 1934 года в первый полет отправился и прототип машины.
"Люксовая" модификация самолета, Eagle 2, появилась после того, как компания была переименована в "British Aircraft Manufacturing Со.". Новая модель получила специально подготовленный двигатель, что позволило самолету победить в нескольких предвоенных авиагонках.
Однако высокая скорость была не единственным достоинством этой машины, которая также отличалась высокой надежностью и относительно большой дальностью полета. На одном самолете был выполнен одиночный перелет из Австралии в Новую Зеландию, над Тасмановым морем; на другом был совершен рекордный перелет через Южную Атлантику, а еще один использовался Кацутаро Ано для перелета по маршруту Хэнворт (Великобритания) - Токио (Япония).
В общей сложности было выпущено 42 самолета, из них пять В.К.1 и тридцать семь В.А.2 Eagle 2. Их них 17 машин были поставлены на экспорт, а в годы Второй мировой войны не менее семи остававшихся в Великобритании самолетов были мобилизованы на службу в Королевские ВВС. Еще два самолета мобилизовали для участия в войне в Индии и по одному в Кении и Малайе.
British Aircraft Eagle 2
Тип: трехместный спортивный и туристический самолет
Силовая установка: один рядный двигатель de Havilland Gipsy Major мощностью 130 л. с. (97 кВт)
Характеристики: максимальная скорость на оптимальной высоте 238 км/час; крейсерская скорость на оптимальной высоте 209 км/час; начальная скороподъемность 213 м/мин; практический потолок 4875 м; дальность 1046 км
Масса: пустого 658 кг; максимальная взлетная 1089 кг
Размеры: размах крыла 11,96 м; длина 7,62 м; высота 2,06 м; площадь крыла 18,58 м2
Flight, July 1934
NEW AEROPLANES IN KING'S CUP RACE
BRITISH KLEMM "EAGLE"
Among the aeroplanes in the race with retractable undercarriages, one of which great things are expected, is the British Klemm "Eagle," with a "Gipsy Six" engine. This is entered by Mr. E. L. Gandar Dower, and will be flown by Mr. A. C. S. Irwin. Structurally, this low-wing cantilever monoplane is of wood, with a plywood-covered fuselage which normally is arranged to carry a pilot in front, with two passengers side by side behind him. The wing, which folds quickly and easily, is also of wooden construction and plywood-covered, and is heavily tapered, giving the machine an aspect ratio of 7.75 to 1. The undercarriage, which, as already mentioned, is retractable, is one of the type so arranged that the wheels and undercarriage struts disappear completely when retracted. By means of a winding-up gear, two sides of this undercarriage are raised straight outwards, and, in the "up" position, the wheels are housed in recesses in the wings, each recess being completely covered by a fairing which is permanently attached to the inside of each wheel.
BRITISH KLEMM "EAGLE"
D.H. "GIPSY SIX," 200 H.P. ENGINE.
Span 39 ft. 3 in. (11,9 m)
Aspect ratio 7.75 to 1
Wing area 200 sq. ft. (18,6 m2)
Gross weight 2,400 lb. (1 088,6 kg)
Tare weight 1,510 lb. (084,9 kg)
Wing loading 12 lb./sq. ft. (58,6 kg/m2)
Power loading 11.7 lb./b.h.p. (4,3 kg/hp)
Flight, April 1936
MODERN LIGHT AIRCRAFT REVIEWED
In a different category, though also a low-wing monoplane, is the Eagle, a three-seater cabin machine with a D.H. Gipsy Major engine and a retractable undercarriage. Work by Rumbold has made the latest version of the Eagle one of the quietest cabin machines on the market, and it is, withal, comfortable and easy to fly. During last season it was successful in a number of races in this country, and it will be remembered that this machine put up a temporary record for the South Atlantic crossing.
As in the case of the Swallow, the Eagle is of all-wood construction, the wings being capable of folding to reduce storage space. The retractable undercarriage is manually operated by means of an easily turned handle on the pilot's right and, until it is in the down position, the throttle cannot be fully closed. Retracting takes a matter of seconds.
Although still in the experimental stage, the new Double Eagle may be mentioned as a machine which is likely to be of interest to the private owner as well as to the small airline operator. Primarily a high-wing monoplane, with all its advantages in the matter of passenger view, the Double Eagle will exhibit a number of interesting control and constructional features.
The specification of the Eagle is as follows: Span folded, 14ft. 10in.; length, 26ft.; weight empty, 1,450 lb.; disposable load 950 lb.; maximum speed, 148 m.p.h.; cruising speed, 130 m.p.h.; landing speed. 45 m.p.h.; initial rate of climb, 700 ft./min.; range at cruising speed, 650 miles. Price, ?1,250. Makers: The British Aircraft Mfg. Co., Ltd., Hanworth Aerodrome, Feltham, Middlesex.
Flight, March 1938
British light aircraft
In a very different class is the B.A. Eagle, which had the distinction of being the first British light aeroplane to be fitted with a retractable undercarriage. This distinction was, in fact, a rather doubtful one, since at the time such an arrangement was looked upon with some unreasonable doubt by the prospective private owner. Last year a model was produced with a fixed and faired undercarriage for the benefit of those who shirked the slight responsibilities involved in retraction.
The cabin arrangements are in the usual three-seater form, with the pilot by himself in front and the two passengers side-by-side behind. The cabin itself is well windowed and very carefully soundproofed, so that at cruising speed the Eagle is certainly one of the quietest machines in its class.
SPECIFICATION: Span folded, 14ft. 10in.; length, 26ft.; all-up weight. 2,400 lb.; weight empty, 1,450 lb.: maximum speed, 148 m.p.h.; cruising speed. 130 m.p.h.; landing speed, 45 nt.ph., initial rate of climb, 700ft./min.; range, 650 miles; price £1,230. Makers: British Aircraft (Sales), Ltd., Hanworth Aerodrome, Feltham. Middlesex.
FAST COMFORT: Retractable undercarriage, highly tapered wings and clean lines, especially over the pilot's cockpit, are some of the many features which give the new British Klemm "Eagle" ("Gipsy Major") its fine performance.
ABOVE THE CLOUDS: In this view the fine lines of the British Klemm "Eagle" (130 h. p. "Gipsy Major") are particularly noticeable, and some idea can be gained of the pilot's range of vision, both above and below. The "Eagle's" cruising speed, with "Gipsy Major" engine, is 130 m.p.h.
IN A NEW WORLD: The British Klemm "Eagle" (Gipsy "Major") flying above the clouds.
3 seater cabin de luxe. Retractable undercarriage. Speed range 45-170 m.p.h. ?1259 with Gipsy Major. ?1475 with Gipsy Six.
Было построено 37 самолетов Eagle 2, первым был G-ACZT. Этот самолет был оборудован в варианте "люкс".
The two Eagles (Flt. Lt. Rose and Mr. H. J. Wilson up) get away from Ronaldsway on the Manx race. Though they have hardly crossed the boundary - and have not started to put on bank for the turn on to course - the undercarriages are up.
FOOL PROOF RETRACTABLE UNDERCARRIAGE
John Fox's Eagle, flown by Flt. Lt. J. B. Wilson, passing over the aerodrome at Hatfield.
Up and down: In the air, the B.A. Eagle being demonstrated by Mr. Bay; on the ground, the Hawk Speed Six and the new Wicko.
The B.A. "Eagle" Santander, on which Senor Pombo made a 2,000-mile crossing of the South Atlantic in 16 hrs. 42 mins. - an average speed of 121 m.p.h.
A delightful type for private owners - the B.A. Eagle (Gipsy Major).
The Eagle, which, with three occupants and their luggage, cruises at 130 m.p.h.
SPIRITUAL: Flt. Lt. Shaw's British Klemm "Eagle," The Spirit of W. Shaw & Co., Ltd., which is one of the most completely equipped machines in the race.
Кинооператоры снимают Клемм "Игл" накануне старта
The B.A. Eagle. This type will be flown by Mrs. Mollison.
The B.A. Eagle (Gipsy Major).
The B. A. Eagle, which has a reputation for exceptional cabin quietness among light aeroplanes.
Mr. Katsutaro Ano, a Japanese pilot (right) is shortly to attempt to establish a flying record between England and Japan in his "Eagle" monoplane.
Another Selection of King's Cup Machines (4) British Klemm "Eagle," D.H. "Gipsy Six" 200 h.p. engine.
EASY ACCESS: CABIN OPENS WITH DOORS
BA Eagle 2 VH-ACN is coming together at Hungerford, where Ben and Jan Cooper are restoring it for Cathay Pacific pilot Capt Geoff Green. Acquired by Green at the Chewing Gum Field Aircraft Museum auction 3yr ago, the rare Eagle was built in 1937 and originally registered G-AFAX.
Two British-built B.A. Eagle II three-seaters are still flying in Australia - VH-ACN and VH-UUY (c/n. 128). Power: 130-h.p. D.H. Gipsy Major I.
FOR THE HANDICAP RACE: The British Klemm "Eagle" ("Gipsy Major"), to be flown by Flt. Lt. G. Shaw, has been fitted with extra petrol tanks, bringing the total capacity up to 70 gallons.
ONE-MAN EASY FOLDING WINGS
Scarborough scars: Capt. W. L. Hope was only one of several competitors who bore visible evidence at Dublin of the bumping they received on the stretch up the North-East coast.
The Mayor of Rochester (Councillor W. Longley, J.P.) and Miss Gladys Batchelor, the "Air Queen," seeing off the Mayoress for her first flight, made with Flt. Lt. Tommy Rose in the demonstration Eagle.
THE ONCE-OVER: Colonel Lindbergh inspects the B.A. Eagle prior to making his first flight since he came to England.
COMDR. H. T. WHITE, aviation manager of the Vacuum Oil Co., with the new B.A. Eagle which the company has purchased. The equipment includes sound-proofing by Rumbolds.
The crew of the good ship Frobisher: from left to right, Mr. C. G. M. Alington, Lt. P. A. Booth, R.N., and Paymaster Lt. R. H. Alington; they manned the B.A. Eagle.
TRANSOCEANIC CONTRAST. This photograph, recently received from Para, Brazil, shows a B.A. Eagle in company with the famous Sikorsky S.42 Brazilian Clipper. The Eagle is that in which Senor Pombo, who is one of the group, flew the South Atlantic in 16 hr. 40 min. from Bathurst. The picture is of particular interest in view of the fact that the British Aircraft Manufacturing Company hold the rights of building the S.42 in England.
Several slower machines had already taken off when Mr. E. F. Walter was snapped with his Miles Hawk. Tommy Rose may be seen chatting near the B. A. Eagle.
PENANG'S FLYING CLUB. - The fleet consists of a B.A. "Eagle," a B.A. "Swallow" (Pobjoy) and three D.H. "Moth Majors."
TOEING THE LINE: Another view over the heads of the crowd. The nearest machine is the "Puss Moth" flown by Mr. C. J. Melrose, next to it are the Airspeed "Courier" A.S.5. (Sqd. Ldr. Stodart and Mr. K. G. Stodart), and Flt. Lt. Shaw's British Klemm "Eagle." These machines were in the Handicap Race.
A Klemm and a Junkers Ju. 52 (the latter used to transport officials and mechanics), with Mr. W. Welton's B.A. Eagle behind, before the massive hangar at Orly.
THE NEW EAGLE: During the past few months British Aircraft have been trying out a new version of the well-known Eagle. This has a fixed undercarriage, and, for those who prefer to be relieved of retractable responsibility, the machine has certain definite advantages. The greater virtual wing-area and the decreased drag have resulted in a considerably improved take-off and a slower landing, while the causing speed (at 2,000 r.p.m.) is still rather better than 120 m.p.h.
The amount of transparent area is particularly noticeable in this sketch of the interior of the B.A. Eagle. The undercarriage handle can be seen on the right of the pilot's seat, while the diagram shows the seating and luggage arrangements.
A neat sliding rear window in E. L. Gandar Dower's Eagle (pilot, Angus Irwin).
DESIGN AIDS TO SPEED (1) How the exhaust is led away underneath the cowling of the "Gipsy Six" engine in the Klemm "Eagle."
BRITISH KLEMM DETAILS: On the left is shown how the spruce ribs are stabilised with stringers and carried over the box spars. The right-hand sketch is a view of the special bracing over that portion of the wing into which the undercarriage wheel retracts.
First of the standard British gears to retract laterally, that of the British Klemm "Eagle" (illustrated in detail on the left) embodies the neat locking device shown in the small sketch on the right.