The Blériot XI set speed record for Airplanes at 47 mph (75.63 km/h)

Specifications:
| Crew |
one |
| Wingspan |
28.6 ft (8.7 m) |
| Wing area |
187 sq ft (17.4 m2) |
| Empty weight |
654 lb (297 kg) |
| Gross weight |
1,014 lb (460 kg) |
| Fuel capacity |
14 U.S. gallons (53 L; 12 imp gal) |
| Powerplant |
1 × Rotec R2800 seven cylinder, air-cooled, four stroke radial engine, 110 hp (82 kW) |
| Propellers |
2-bladed wooden |
| Cruise speed |
50 mph (80 km/h, 43 kn) |
| Stall speed |
32 mph (51 km/h, 28 kn) |
| Range |
100 mi (160 km, 87 nmi) |
| Rate of climb |
900 ft/min (4.6 m/s) |
| Wing loading |
5.4 lb/sq ft (26 kg/m2) |
Source: https://en.wikipedia.org/wiki/Airdrome_Bleriot_Model_XI
25 July 1909: At 4:41 a.m., Louis Charles Joseph Blériot took of from the hamlet of les Baraques,¹ near Sangatte, Pas-de-Calais, France, in his own Type XI single-engine monoplane, and flew across the English Channel (la Manche) to Dover. He landed at Northfall Meadow, near Dover Castle, Kent, England.
The airplane did not have a compass, so for a visual reference. Blériot used a 26-knot Pertuisane-class torpedo boat destroyer, Escopette, which was sailing toward Dover. After passing the ship, visibility deteriorated and he was only able to see the water below him.
Blériot flew on and after about ten minutes was able to see the coastline ahead. He realized that the wind had blown him to the east of his intended course, so he flew along the shoreline until he recognized a signal marking the landing point. The wind was gusty near the cliffs and he landed harder than intended, slightly damaging his airplane.
This was the first time an airplane had been flown across the English Channel, and brought Blériot international acclaim. He was appointed Chevalier de la légion d’honneur, by France. A London newspaper, the Daily Mail, awarded him a £1,000 prize.
Very quickly, orders for his Type XI were coming in. Between 1909 and 1914, approximately 900 were sold.
Louis Bleriot’s Channel-crossing Type XI monoplane was donated to the Musée des arts et métiers in Paris by the newspaper Le Matin, in October 1909. It remains in the museum’s permanent collection.
The Blériot XI was a single-seat, single-engine monoplane. It was 26.24 feet (7.998 meters) long with a wingspan of 25.35 feet (7.727 meters) and height to the top of the cabane strut of 8.0 feet (2.438 meters). It had an empty weight of 507 pounds (229.9 kilograms). (Sources give conflicting specifications for the Blériot XI, probably because they were often changed in an effort to improve the airplane. The model flown across the English Channel was described by Flight as the Blériot Short-Span Monoplane. Dimensions given here are from the three-view drawings, below.)
In its original configuration, the Type XI was powered by an air-cooled, 3.774 liter (230.273 cubic inches) Robert Esnault-Pelterie (R.E.P.) two-row, seven-cylinder fan engine (or “semi-radial”), which produced 30 horsepower at 1,500 r.p.m., and drove a four-bladed paddle-type propeller. The R.E.P. engine weighed 54 kilograms (119 pounds). This engine was unreliable and was soon replaced by an Alessandro Anzani & Co. W-3.
The Anzani W-3 was an air-cooled, naturally-aspirated, 3.377 liter (206.078 cubic inch) 60° (some sources state 55°) three-cylinder “fan”-type radial engine (or W-3). It was a direct-drive, right-hand-tractor engine which produced 25 horsepower at 1,600 r.p.m. The W-3 was 0.300 meters (11.811 inches) long, 0.386 meters (15.197 inches) high, and 0.694 meters (2 feet, 3.323 inches) wide. The engine weighed 65 kilograms (143 pounds). The engine turned a highly-efficient Hélice Intégrale Chauvière two-bladed, fixed-pitch, propeller which had a diameter of 6 feet, 8 inches (2.032 meters). The Anzani W-3 cost 3,000 French francs in 1909.
The Blériot XI had a maximum speed of 47 miles per hour (76 kilometers per hour) and the service ceiling was approximately 1,000 meters (3,281 feet).
Source: https://www.thisdayinaviation.com/25-july-1909/)
