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On 8 February 1933, Boeing flew the prototype of a new civil airliner which was identified by the company as the Boeing Model 247. This had derived via the design of the single-engined civil Model 200 Monomail and the twin-engined Model 215 (US Army designation B-9) bomber, each of which had a cantilever monoplane wing.
A revolutionary aircraft, the Boeing 247 has since become regarded as a prototype for the modern airliner, for it was a clean cantilever low-wing monoplane of all-metal construction with twin-engine powerplant, retractable landing gear, and accommodation for a pilot, copilot, stewardess and 10 passengers. With one engine inoperative it could climb and maintain altitude with a full load, and introduced a new feature for a civil transport aircraft by being equipped with pneumatic de-icing boots on wing, tailplane and fin leading edges to prevent ice accretion from reaching a dangerous level.
Sixty examples of the Model 247 were ordered 'off the drawing board' to re-equip the Boeing Air Transport System, shortly to become a major limb of United Air Lines, and another 15 were ordered subsequently for companies or individuals. That built for Roscoe Turner and Clyde Pangborn (to compete in the England-Australia 'MacRobertson' air race of 1934) was provided with fuselage fuel tanks instead of the standard airline cabin equipment, and introduced NACA engine cowlings (to reduce drag) and controllable-pitch propellers with optimum settings for take-off and cruising performance. These improvements were incorporated retrospectively on most airline Model 247s, thus elevating them to Model 247D standard.
When the USA became involved in World War II in late 1941, these Model 247Ds remained in airline use, and 27 of them were impressed for service with the USAAF under the designation C-73. It had been anticipated that they could be used for the carriage of cargo and troops, but it was discovered that the cabin doors were too small for this purpose. Instead, they were deployed to ferry aircrew and, later in the war, were used for training. In service they were provided with 447kW Pratt & Whitney R-1340-AN-1 Wasp radials. When no longer required in late 1944, they were returned to civil airline service.
| MODEL | Model 247D |
| CREW | 3 |
| PASSENGERS | 10 |
| ENGINE | 2 x Pratt & Whitney S1H-1G Wasp, 410kW |
| WEIGHTS |
| Take-off weight | 6192 kg | 13651 lb |
| Empty weight | 4148 kg | 9145 lb |
| DIMENSIONS |
| Wingspan | 22.56 m | 74 ft 0 in |
| Length | 15.72 m | 51 ft 7 in |
| Height | 3.6 m | 11 ft 10 in |
| Wing area | 77.6 m2 | 835.28 sq ft |
| PERFORMANCE |
| Max. speed | 322 km/h | 200 mph |
| Cruise speed | 304 km/h | 189 mph |
| Ceiling | 7740 m | 25400 ft |
| Range | 1199 km | 745 miles |
| Dwight Johnson, dnvjohnson(@)aol.com, 21.07.2008 I'd like to report that in 1933, when I was 2.5 yrs old, my family of four flew from the East coast to West cost on a UA Boeing 247. My brother, Walter, was only about 3 weeks old which made him the youngest baby to have made the trip up until that time.
Of course I don't rember the trip, but was told when older that I was sitting in my father's (Dwight Johnson, Sr.) lap holding a bouquet of panseys. He was seatbelted down, I was not. We hit a "air pocket" which left me in a seated position some distance above my father!
Since they didn't fly at night yet, we landed one or more times to sleep.
When my mother was quite aged, I commented to her that they were really "gutsy" and adventurous to make such a flight on such a early airplane. Her reply was," You only know the half of it. The same kind of plane had crashed and all were killed a week earlier. However, your Father and I decided to go anyway since the whole family would be together. If we were killed we'd all go to be with the Lord at the same time."
I am sure that part of the decision was my father's strong interest in aviation and the experience it would provide. As a child he saw Beachy crash during the SF 1915 World's Fair, and he built a plane out of yardsticks from a local hardware store in his San Francisco attic.
Later in life he was convinced that planes should be shaped like the pointed paper gliders. We know now he was right.
A week before his death, he was thrilled to come onboard one of the first UA 747's upon my family's return to CA from NY.
A few years ago I enjoyed the very good display of this plane in the Seattle Boeing Muesum.
Thank you for this website. It's been enjoyable recalling my past aviation history. Use these comments as you wish. If you do, and its convient, please let me know how you used them. Yours, Dwight Johnson, Jr Logged in as: dnvjohnson@aol.com Your Question has been Submitted The reference number for your question is '080721-000074'.
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If you need to add information to or cancel your question, you can do so by updating it through the questions sub area of the 'My Stuff' section of this site. Home > Frequently Asked Questions
Answers Ask a Question My Stuff Logout Help Logged in as: dnvjohnson@aol.com Your Question has been Submitted The reference number for your question is '080721-000074'.
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If you need to add information to or cancel your question, you can do so by updating it through the questions sub area of the 'My Stuff' section of this site. | | stephen winkler, stephenswinkler2000(@)hotmail.com, 27.03.2007 The first act of terrorism involving aviation occurred on 10 October 1933, when a Boeing 247 flying from Cleveland, Ohio to Chicago, Illinois exploded over Indiana by a bomb planted in the baggage compartment of the plane. All three crew members and all four passengers died in the crash. Incidentally, this was the first recoreded crash involving a United Air Lines airplane, which incidentally, has one of the safest records in air travel. Incidentally, in that connection, it was also the first crash of a Boeing B-247, which was one ot the best designed planes of its time and considered to be one of the safest to fly at the time. |
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