Patent DE-1881-Moshaiski

From Inventing aviation
Jump to navigation Jump to search
"Mozhaysky's monoplane"

Lilienthal Museum's archive record says (after translation via google translate):[1]

  • Filed from St. Petersburg, Russia
  • In the patent of November 3, 1881 an aircraft with all modules is presented. It was the first aviation patent of Russia. The rectangular wings had a flat profile at low elongation, nothing was available to maintain the transverse stability. The tail unit directly on the wing was detrimental to the longitudinal stability, 3 propellers. The patent was registered on 4.6. Submitted in 1880 before Moshaiski traveled to the US via Estonia. It was realized in its fundamentals in the engine flight apparatus.
  • As a concept he had previously developed: 1. a boat for the drive and 2 people; 2. on the boat 2 rigid wings; 3. The tail must be able to control up and down, right and left; 4. a large screw diameter; 5. at the rear part 2 small propellers, intended to control to the right and left as to support the front; 6. a box with wheels under the boat, so that the apparatus has approximately an angle of 4 degrees to the horizon, so at start a favorable angle to quickly reach the starting speed; 7. For the attachment of wings and tail 2 masts are available; As propulsion for the propellers, he envisaged a steam engine based on the Braiton system. He calculated as weight at 30 hp per horsepower for 2 hours between 11 and 12 pounds of fuel and water.
  • Source: Source 1, p. 108; Source 2, p.176
  • Research: Seifert

The reference to Braiton system probably refers to this steam engine design: Brayton cycle (on en.wp)

  • Whether this patent was actually granted is not clear from these sources ; for now it's documented here as YES, granted.

References

  1. Archive record of this patent at Lilienthal Museum site

(This man, Алекса́ндр Фёдорович Можа́йский, whose name is also transliterated as "Alexander Fedorovich Mozhaysky", 1825-1890, being earlier in the trajectory we are studying, had a career predating the existence of the Imperial Russian Air Force, as such, and was (ultimately) an admiral in the Imperial Russian Navy. His aero-innovation, not hugely successful, due largely to challenges related to lift, began in 1876 and focused on the heavier-than-air. See Alexander Fedorovich Mozhaysky on English Wikipedia. "Mozhaysky's monoplane" was truly based on "one plane", that is, one planar surface.)


Year filed
Year granted 1881
Office DE
Patent number Av
Inventors Moshaiski
Inventor country RU
Applicant person
Applicant firm
Applicant type
Applicant is inventor? 1
Original title Motorflugzeug
English title Aircraft with motor
Tech fields
Filing date
Full specification filed date
Application number
Grant date
Granted? 1
Publication date
Supplementary to patent
Related to aircraft? Yes
Serial number
Patent agent
Assigned to
National tech categories
IPCs
CPCs
Family year 1881
First filing?
Cites these patents
Citations from after 1930
Application ID
INPADOC family ID
Number of text pages
Number of diagram pages
Number of figures
Number of claims