US1890021A - Flying boat - Google Patents

Flying boat Download PDF

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Publication number
US1890021A
US1890021A US526407A US52640731A US1890021A US 1890021 A US1890021 A US 1890021A US 526407 A US526407 A US 526407A US 52640731 A US52640731 A US 52640731A US 1890021 A US1890021 A US 1890021A
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US
United States
Prior art keywords
flying boat
parts
flying
boat
rectilinear
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US526407A
Inventor
Sanders Ludwig Adrian
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
FRANS LAMBERT STOOT
JOHANN ANTON SANDERS
Original Assignee
FRANS LAMBERT STOOT
JOHANN ANTON SANDERS
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by FRANS LAMBERT STOOT, JOHANN ANTON SANDERS filed Critical FRANS LAMBERT STOOT
Application granted granted Critical
Publication of US1890021A publication Critical patent/US1890021A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C35/00—Flying-boats; Seaplanes
    • B64C35/001—Flying-boats; Seaplanes with means for increasing stability on the water

Definitions

  • the invention relates to the shape of a flying boat, and its object is to obtain various improvements over the constructions hitherto known.
  • the central part of the lower half of the cross sections is confined to a curve which approaches a circular arc, which central part at both sides is joined by a short rectilinear horizontal part which parts merge into rectilinear or nearly rectilinear parts extending upwardly which oin the continuation of said curve by means of closely fitting transition parts.
  • a flying boat constructed according to the invention has very small resistance, as well in the air as in the water, combined with a large bottom strength. Another advantage is the capacity of easily starting from the water, the landing on the water surface taking place very gradually. As a boat the construction gives a large stability and a better seaworthiness than with the flying boats hitherto known.
  • the central part 1 of the lower half of the section is confined by a curve which has been drawn in the figure for convenience sake as an exact circular arc, but in practice is carried out as a curve, the shape of which approaches the circular arc, e. g. the top part of a parabola or ellipse.
  • the part 1 is oined at both sides by a short rectilinear horizontal part 2.
  • On these parts 2 the main longitudinal struts 5 are arranged.
  • the parts 2 pass into rectilinear or nearly rectilinear rising parts 3 which, if the flying boat is floating on the water, will give a large stability to the same.
  • the parts 3 by means of closely fitting transition parts a join the continuation 6 of the curve 1 on which finally the wings are arranged.
  • a flying boat wherein the lower portion of the cross section of the hull comprises a surface of revolution, this portion merging into a side portion which is substantially horizontal, thereafter into a substantially straight portion at an acute angle with the LUDXVIG ADRIAN SANDERS.

Description

Dec. L. A. SANDERS 1,890,021
FLYING BOAT Filed March 30,' 1931 Ll/QVLZOT (A), fizmlm flan e N Patented Dec. 6, 1932 UNITED STATES PATENT OFFICE LUDWIG ADRIAN SANDERS, OF VOORBURG, NETHERLANDS, ASSIGNOB T0 JOHANN ANTON SANDERS, OF VOORBURG, NETHERLANDS, ANI) FRANS LAMBER'I" STOOT, OF
THE HAGUE, NETHERLANDS FLYING BOAT Application filed March 30, 1931, Serial No. 526,407, and in the Netherlands April 7, 1930.
The invention relates to the shape of a flying boat, and its object is to obtain various improvements over the constructions hitherto known.
According to the invention the central part of the lower half of the cross sections is confined to a curve which approaches a circular arc, which central part at both sides is joined by a short rectilinear horizontal part which parts merge into rectilinear or nearly rectilinear parts extending upwardly which oin the continuation of said curve by means of closely fitting transition parts.
A flying boat constructed according to the invention has very small resistance, as well in the air as in the water, combined with a large bottom strength. Another advantage is the capacity of easily starting from the water, the landing on the water surface taking place very gradually. As a boat the construction gives a large stability and a better seaworthiness than with the flying boats hitherto known.
An embodiment of the invention is illustrated in the accompanying drawing. The figure is a cross section.
The central part 1 of the lower half of the section is confined by a curve which has been drawn in the figure for convenience sake as an exact circular arc, but in practice is carried out as a curve, the shape of which approaches the circular arc, e. g. the top part of a parabola or ellipse. The part 1 is oined at both sides by a short rectilinear horizontal part 2. On these parts 2 the main longitudinal struts 5 are arranged. The parts 2 pass into rectilinear or nearly rectilinear rising parts 3 which, if the flying boat is floating on the water, will give a large stability to the same. The parts 3 by means of closely fitting transition parts a join the continuation 6 of the curve 1 on which finally the wings are arranged.
I claim;
1. A flying boat, wherein the lower portion of the cross section of the hull comprises a surface of revolution, this portion merging into a side portion which is substantially horizontal, thereafter into a substantially straight portion at an acute angle with the LUDXVIG ADRIAN SANDERS.
US526407A 1930-04-07 1931-03-30 Flying boat Expired - Lifetime US1890021A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL1890021X 1930-04-07

Publications (1)

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US1890021A true US1890021A (en) 1932-12-06

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ID=19873240

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US526407A Expired - Lifetime US1890021A (en) 1930-04-07 1931-03-30 Flying boat

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2999475A (en) * 1960-04-08 1961-09-12 Jr Walter Conrad Kautz Boat hull construction

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2999475A (en) * 1960-04-08 1961-09-12 Jr Walter Conrad Kautz Boat hull construction

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