Potez 25

přehled verzí

Potez 25 - track version[/heading]


Main division the Design of the aeroplane - a description
the Potez 25 A2 two-seater reconnaissance aircraft
Potez 25 B2 two-seater light bomber
the Potez 25 TOE two-seat aircraft for service in the colonies, can be used as reconnaissance and as a bomber manufactured 795 aircraft.


With regard to the fact that it was produced 87 variants and versions of this aircraft, here I will mention only some of the variants for which I've tracked down some data.


Label Implementation of the plane - the number of
Potez 25.1 the first prototype, the engine Lorraine 12 Eb, 1 aircraft
Potez 25.4 version of the Grand Raid, the engine of the Renault 12Ja, 1 aircraft
Potez 25.5 v-engine Hispano-Suiza 12Jb, Spain, 1 aircraft
Potez 25.8 mountain type v-engine Farman 12Wc, a few dozen
Potez 25.9 v-engine Hispano-Suiza 12Ga, Spain, 1 prototype
Potez 25.11 radial engine Gnome-Rhône 9 Ab, navy
Potez 25.12 the engine Salmson 18Cmb, 280 aircraft
Potez 25.13 radial engine Gnome-Rhone 9 Ac, 4 planes for Estonia
Potez 25.16 radial engine Gnome-Rhône 9 Ab, a demonstration aircraft to Finland
Potez 25.18 v-engine Hispano-Suiza 12Jb, for Serbia
Potez 25.21 engine Lorraine 12 Eb with a turbocharged, project
Potez 25.23 the engine Salmson 18Cmb, demonstration aircraft for Europe
Potez 25.24 tank for 1200 liters of fuel, a Portuguese aircraft for the Atlantic crossing
Potez 25.27 radial engine Gnome-Rhône 9 Ad, yugoslav manufacture, 220 aircraft
Potez 25.28 radial engine Gnome-Rhône 9 Ad later Saurer Jupiter VI, Switzerland, 6 aircraft
Potez 25.29 v-engine Hispano-Suiza 12Gb, Switzerland, 5 aircraft
Potez 25.30 v-type engine Renault 12Kd, Brazil, 6 aircraft
Potez 25.34 aircraft for Manchuria, 25 aircraft
Potez 25.35 plane for pulling aerial targets (targets)
Potez 25.39 radial engine Gnome-Rhône 9 Ab, USSR. 2 aircraft
Potez 25.40 v-engine Hispano-Suiza 12Hb, China, 2 aircraft
Potez 25.44 v-type engine Renault 12Jb, 74 aircraft
Potez 25.47 connecting and courier aircraft for the department of aviation 1 aircraft
Potez 25.48 v-engine Rolls-Royce Eagle IX, China, 1 prototype
Potez 25.55 two-seater training aircraft, 40 aircraft
Potez 25.58 project remote reconnaissance aircraft with a 800 liter tank
Potez 25.59 project reconnaissance aircraft to Iran
the Potez 25.xx experimental aircraft for testing of the diesel engine Clerget 14 F, 2 aircraft purchased by Japan and here are classified as the Potez CXP.
Potez XXV Jupiter radial engine PZL-Bristol Jupiter VIIF, Polish license production



Used sources:
fr.wikipedia.org
http://desertwar.net/potez-25.html
http://www.airwar.ru/enc/bww1/potez25.html
http://www.aviastar.org/air/france/potez-25.php
www.warbirdsresourcegroup.org
www.aviafrance.com
author archive
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URL : https://www.valka.cz/Potez-25-t63794#503540 Version : 0

Potez 25[/heading]

The French air force in 1923 for their units requiring combat aircraft, which would serve to the survey, but at the same time could carry a small bomb load. The aircraft had to fly as a two-seater reconnaissance in the category of A2 and at the same time should be no further adjustments to serve in the category of light bomber aircraft – the B2.
This competition was part of Henry Potez company Aéroplanes Henry Potez, based in Aubervilliers. First, in 1924 he designed and built a prototype of Potez 24 (Potez XXIV). This machine was based on the older design of the Potez 15 (Potez XV), which was produced in large numbers in the early twenties. The prototype of the Potez 24 was not adopted, but brought a very important design solutions – to the airframe could be attached to any engine and by any understand the engine is the radial, v-type, air-cooled or even water. Structurally, this possibility was addressed so that the hull of the joined engine and its the bed using four screw connections, this will of course facilitate the repair / replacement of the power unit. This a great solution used by Henry Potez in your another type of Potez 25 (Potez XXV).

The prototype of the new aircraft, designated Potez 25 flown at the beginning of 1925, it was a single-engined two-seater single-engine jedenapůlplošník (top wing should have a full size and two beams and a smaller lower wing has only one beam) with fixed gear. Over other aircraft of the same category excelled simple construction, high reliability and easy maintenance. The design of the new aeroplane was mixed, the fuselage had a rectangular cross-section, was formed by four longitudinal beams from spruce wood. The skeleton of the fuselage was of steel and duralumin tubes in the engine bay and in the vicinity of the cabins was a skeleton covered by plywood, at the rear part of the fuselage of the screen. The design of the wings was once again mixed, duralumin spars with wooden ribs, the leading edge was covered by plywood, the remaining part of the wings were covered with canvas. Ailerons were only on the upper wing. The tail surfaces were also of mixed construction and have been classically arranged. Armament was comprised of one fixed synchronized machine gun Vickers caliber 7,7 mm with 500 rounds of ammunition and one movable kulometným twin Lewis the caliber of 7.7 mm on the associated circle 4 in the rear cabin. Ever been installed yet the next Lewis gun firing obliquely down under the aircraft výstřelnou slit in the floor of the observer's cabin. Later the guns were of british provenance of the machine guns replaced with Darne caliber 7.5 mm.

Now we come to the power unit, the basic (or first used) the drive unit the engine was mountain type v liquid-cooled Lorraine-Dietrich 12Eb, were also mounted engines the following manufacturers and types:
Lorraine-Dietrich - 12Ed and 12Fa
Clerget - 14E and 14F of the
Gnome-Rhône 9Ab, 9Abx, 9Ac, 9Ad and 14Nc
Hispano-Suiza - 12Ga, 12Gb, 12Hb, 12 lb and 12Jb
Farman - 12Wc, 12We and 12Wkrsc
Panhard - VK 12L
Renault - 12Ja, 12,Jb, 12Kd, 12Kg, 12Jc and 18 Jbr
Rolls-Royce Eagle IX
Salmson - 18Ab and 18 Cmb
PZL-Bristol Aeroplane Comany - Jupiter VIIF
Sauer – Jupiter VI

The first aircraft were to the units included in 1926, production continued until the year 1934, in the production is retained as long as these machines have become a very important export product. Production took place first in the company Aéroplanes Henry Potez based in Aubervilliers, a factory there already wasn't enough and so run the second Potezova factory in Méaulte, in the meantime, were pouring in orders from all over the world and so in the production engage and another French factory, and ANF Les Mureaux and Hanriot.
The largest purchaser was logically France, the army and naval air force ordered a total of 2 450 Potezů 25 in various designs. Supposedly should be 87 variants of this aircraft. This was due both to the already mentioned amount of the engine, further changing rooms for the crew, the shapes of the tail surfaces, slightly wingspan (reciprocally bearing area). An important version, was the Potez 25 TOE (Théâtres d Operation Extérieurs), which was adapted for service in the overseas colonies, these aircraft were in North Africa, Madagascar, Djibouti in French West Africa, to Výchoní Africa and to Indochina. After making minor adjustments to Potezy 25 used in the civilian sector, e.g. with the company Aeropostale for the carriage of mail in France, Africa and South America. Potéz 25 was after the surrender of France used vichistickým air force, in particular the version of the Potez 25 TOE, air force, Free French FAFL and a few aircraft continued flying even after the liberation of France.
Now we come to the foreign users, there were quite a lot of, therefore for the sake of clarity I will use the following table.



State Type, version, airplane (engine) - the number of
Afghanistan version of 25 A2 – supply of the two aircraft
Argentina in the years 1929 – 36 postal aircraft
Brazil 25.30 (Renault 12Kd) 6 aircraft
25.61 (500 liter tank) 18 aircraft
China 25.34 – 25 aircraft
25.40 (HS 12 Hb) – 2 aircraft
25.48 (RR Eagle IX) – 1 prototype
Croatia it took about 25 yugoslav aircraft
Ethiopia 25.53 – 3 aircraft
25.xx (HS 12Jb) – 3 aircraft
Estonia 25.13 (Gnome-Rhone 9 Ac) - 4 aircraft
25.25 (Gnome-Rhône 9 Ad) - 5 aircraft
Finland 25.16 (Gnome-Rhône 9 Ab) 1 demonstration aircraft
France used the largest quantity of types and versions of aircraft
Guatemala 25.49 – 5 aircraft
Japan 25.06 B2 – 1 aircraft
25.34 captured chinese aircraft after the occupation of Manchuria
25.xx modification 25.4 (Farman 12Wkrsc the elevation motor) – 3 aircraft
25.xx experimental aircraft (Clerget 14F) – 2 aircraft
Yugoslavia 25.28 (HS 12Jb) for Serbia
25.20 – 10 aircraft
25.27 (Gnome-Rhône 9 Ad) – 220 licensing of aircraft (Ikarus)
Germany Polish aircraft after the defeat of Poland – hundreds of aircraft
Paraguay 25.33 modified 25.4 with a 410 l tank, and another heatsink – 5 aircraft
Poland 25.15 – 10 aircraft
25.16 (Gnome-Rhône 9 Ab) – 1 demonstration aircraft from Finland
Production license 250 Potez 25 A2 and 50 Potez B2 (Lorraine 12Ed were replaced by PZL-Bristol Jupiter VIIF).
Portugal 25.24 – 1200 l tank for the Atlantic crossing /not implemented – 1 aircraft
25.37 (Gnome-Rhône 9 Ab) – 27 license aircraft (OGMA)
Romania 25.19 modified 25.14
25.36 rebuilt on the wing (HS 12Hb) – 13 aircraft
Greece 25.xx (HS 12Jb) 30 aircraft
USSR 25.39 (Gnome-Rhône 9 Ab) – 2 aircraft
Spain 25.5 (HS 12Jb) – 1 aircraft
25.9 (HS 12Ga) 1 prototype
Switzerland 25.28 (Gnome-Rhône 9 Ab later replaced by Saurer Jupiter VI) - 6 aircraft
25.29 (HS 12Gb) – 5 aircraft
25.63 – 25.70 (with the exception of 25.67) in version A2 (Gnome-Rhône Jupiter 9 Abx) – 6 aircraft
Turkey Potez 25 A2– 1 aircraft
Uruguay 25.38 – 2 aircraft
25.56 TOE – 7 aircraft
25.xx A2 (HS 12Gb) 1 aircraft


Used springs:
Jean-Louis Coroller and Michel Ledet, Les avions POTEZ, Lela Presse, coll., Histoire de l'aviation, No. 20, 2008, ISBN 2914017499.
fr.wikipedia.org
http://desertwar.net/potez-25.html
http://www.airwar.ru/enc/bww1/potez25.html
http://www.aviastar.org/air/france/potez-25.php
www.warbirdsresourcegroup.org
www.aviafrance.com
.
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