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How do you measure a propeller?
Propeller size is expressed with two numbers, diameter and pitch, with diameter always stated first. Diameter is two times the distance from the center of the hub to the tip of any blade. Smaller prop diameters generally go with smaller engines, or with fast high performing boats.
What was bigger B-17 or b29?
Due to all of this, the B-29 is much heavier than the B-17. As a result, Boeing was forced to use more powerful engines for the B-29. In turn, the B-29 had a much longer combat range than the B-17. On top of the longer combat range, the B-29 also had a much faster cruising and max speed.
How many b17s are still flying?
Today, 46 planes survive in complete form, 10 of which are airworthy, and 39 of which reside in the United States….Surviving aircraft by manufacturer.
| Plant | Number produced | Number surviving |
|---|---|---|
| Douglas Long Beach (DL) | 3,000 | 23 |
| Vega Burbank (VE) | 2,750 | 14 |
| 12,731 | 46 |
What replaced the B-17?
B-24s
Beginning in the spring of 1943, the 43rd Bomb Group replaced its B-17s with B-24s, ending the combat career of the Flying Fortress in the Pacific. Not a single B-17 bomber ever appeared in the skies over Japan while hostilities were under way.
What are B-29 bombers?
B-29, also called Superfortress, U.S. heavy bomber used in World War II. Its missions included firebombing Tokyo and other Japanese cities and dropping atomic bombs on Hiroshima and Nagasaki, Japan, on August 6 and 9, 1945, respectively.
How high can a b29 fly?
31,850 feet
Technical Specifications
| First flight | Sept. 21, 1942 |
|---|---|
| Cruising speed | 220 mph |
| Range | 5,830 miles |
| Ceiling | 31,850 feet |
| Power | Four 2,200-horsepower Wright Duplex Cyclone engines |
How tall is a B-17 Flying Fortress propeller?
Inside the crate were three brand-new spare propeller blades for the B-17 Flying Fortress. We felt like we’d been dropped into a scene from Raiders of the Lost Ark!” The finished (assembled) piece measures in at 83 inches high with a 21-inch machined steel base finished with a translucent smoke-colored powder coating.
Are there any B-17 propellers still in use?
Hamilton Standard seems to have been acquired by (or turned into) UTC Aerospace which appears to still make propellers. You may want to reach out to them as they may have more info on hand. There are quite a few B-17’s lurking around and there may even be one near you that you can go take a look at and possibly even measure.
What was the name of the B-17 bomber?
Two experimental versions of the B-17 were flown under different designations, the XB-38 Flying Fortress and the YB-40 Flying Fortress.
Where was the Boeing B-17 Flying Fortress made?
Boeing produced 512 “E”s. The “F” was the first B-17 variant to be produced by all of the “B.V.D.” companies (Boeing, Lockheed/Vega, and Douglas). Because of the pressing demand for the Flying Fortress, Boeing provided blueprints and cooperation for the B-17 to be built at the Douglas plant in Long Beach and the Vega plant in Burbank.