Zlin Aircraft Designations

hesham

hesham

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Hallo,

Z-41 : low wing side-by-side two seat aerobatic cabin monoplane.
Z-44 : a single seat aerobatic Z-42 with tailwheel u/c and M-137A engine.
Z-45 : a single seat crop sprayer with 500 litre hopper and 210 hp M-337 engine.
Z-46 : eight seat high wing twin engined light aircraft,project.
Z-47 : high wing utility aircraft with PT-6 turboprop engine,project.
Z-48 : six seat twin boom pusher aircraft wit turboprop engine,project.
Z-52 : two seat mid-wing trainer aircraft,project.
Z-61L :tandem two seat military trainer aircraft with 300 hp engine,project.

by the way the Z-44 and Z-45 were projects.
 
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Hesham,

I’m interested in illustrations of Z-52 and Z-61L. Can you help? What is the source for your list? "Československá letadla" vol 2 by Václav Němeček?
 
hi all
 

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Very great work AM,

Z-20 twin engined low wing light monoplane
Z-120 was a project of six-seat with retractable undercarriage,
a stretch version of Z-20
Z-33 was side-by-side two seat trainer wich was Junak with
a cut-down rear fuselage and a bubble canopy,project
Z-34 was twin engined twin boom light aircraft,project
Z-41 low wing side-by-side two seat aerobatic cabin monoplane
Z-44 a single seat aerobatic Z-42 with tailwheel u/c and M-137A engine
Z-45 a single seat crop sprayer with 500 litre hopper and 210 hp
M-337 engine
Z-46 eight seat high wing twin engined light aircraft,project
Z-47 high wing utility aircraft with PT-6 turboprop engine,project
Z-48 six seat twin boom pusher aircraft wit turboprop engine,project
Z-51 was twin boom pusher aircraft,may be trainer project
Z-52 two seat mid-wing trainer aircraft,project
Z-61L tandem two seat military trainer aircraft with 300 hp engine,project
 
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Hi all!
Dear AM, many thanks for your great work, but I have some little remarks.

1. You noted Z-IX Pošták, Z-XI and Z-XVIII as motor gliders. I think it isn’t very correct. Z-IX was an ultralight aircraft, two others were two-seat light aircrafts of the same class as Z-XII (while different in layout). Any of them wasn’t very “glider-like”.
Also Z-IX wasn’t built in 1934, but in 1936 – even later than Z-XII. Maybe there was some other unbuilt project named Z-IX earlier (as it was with Z-X and Z-XII), but I don’t know anything about it.

2. Are you sure that a glider named Z-13 was produced in 1946-49? My source is 2-volume Československa letadla bible by V. Nĕmeček, and he doesn’t mention any other Z-13 besides the 1937 courier / racing aircraft. But Z-23 school glider was produced at the same time (1946-49) and in the same number (211) as you specified for the mysterious “Z-13”. Maybe you committed a mistake here? Also, a popular name of Z-23 glider was Honza, not Hansa.

3. Why did you note Z-35/135 helicopters as “license-build”? They are original Zlin designs. In 1958, when Zlin began to produce HC-2 helicopter, a special design team for future rotorcraft projects was organized there. This team created Z-35, Z-135, and Z-38 autogyro project. Its leader was eng. Jan Mikula – future Zlin chief designer, author of Z-42/43 and Z-50 families…

4. To my mind, it’s a bit strange to refer Z-42 as “aerobatic aircraft”, moreover the 4-seat Z-43. As for me, it would be more correct to specify Z-42/142/242 as trainers, and Z-43/143 as utility aircraft.

And also some remarks regarding Hesham’s additions – especially Z-33 and Z-41 projects. Hesham, you say that Z-33 was 2-seat; what’s your source about it? According to Nĕmeček, Z-33 (named Derviš) actually looked much like your description, but was only 1-seat. Nĕmeček also claims that Z-33 was powered by 40-hp engine and projected maximum speed was 154 km/h. It was designed by eng. Ladislav Marcol – so most probably it was derived from his “homebuilt” PLK-5, rather than from Z-22 designed by Karel Tomaš.

Concerning Z-41 - it was mostly the same Z-42, but lighter, with 4-cylinder M-132 engine instead of 6-cylinder M-137. M-132 was projected as M-332 “aerobatic” version without compressor (it referred to M-332 in the same way as M-137 to M-337). But finally M-132 engine was never produced, and therefore Z-41 also remained on paper.

I attach here an updated version of AM’s list: I corrected some dates, added designers’ names and added the data about many unrealized projects (either mentioned or not in Hesham’s post). The only remaining “mysteries” are: Z-XVII, Z-XIX, Z-27, Z-29, Z-40, Z-49 and the gap between Z-52 and Z-61. (Z-40 was probably skipped, as it was “common name” for the whole, highly unified family from Z-41 to Z-46). I attach also the photo gallery of pre-war Zlins (the postwar ones are common known, I think).

I posted more info and pictures about unrealized pre-war Zlin projects (including the first Z-X and Z-XII !) at a new topic: http://www.secretprojects.co.uk/forum/index.php/topic,9787.0.html. Additional info about the postwar projects here: http://www.secretprojects.co.uk/forum/index.php/topic,5233.0.html.
 

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Hi,

Z-60 was a light aircraft,no more Info.
Z-90 was a project of four-seat lightplane powered by two
260hp Textron Lycoming engine.
Z-400 Rhino was utility aircraft powered by 600hp Orenda
Recip OE600 engine.
 
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redstar72 said:
Hi all!
Dear AM, many thanks for your great work, but I have some little remarks.

1. You noted Z-IX Pošták, Z-XI and Z-XVIII as motor gliders. I think it isn’t very correct. Z-IX was an ultralight aircraft, two others were two-seat light aircrafts of the same class as Z-XII (while different in layout). Any of them wasn’t very “glider-like”.
Also Z-IX wasn’t built in 1934, but in 1936 – even later than Z-XII. Maybe there was some other unbuilt project named Z-IX earlier (as it was with Z-X and Z-XII), but I don’t know anything about it.

2. Are you sure that a glider named Z-13 was produced in 1946-49? My source is 2-volume Československa letadla bible by V. Nĕmeček, and he doesn’t mention any other Z-13 besides the 1937 courier / racing aircraft. But Z-23 school glider was produced at the same time (1946-49) and in the same number (211) as you specified for the mysterious “Z-13”. Maybe you committed a mistake here? Also, a popular name of Z-23 glider was Honza, not Hansa.

3. Why did you note Z-35/135 helicopters as “license-build”? They are original Zlin designs. In 1958, when Zlin began to produce HC-2 helicopter, a special design team for future rotorcraft projects was organized there. This team created Z-35, Z-135, and Z-38 autogyro project. Its leader was eng. Jan Mikula – future Zlin chief designer, author of Z-42/43 and Z-50 families…

4. To my mind, it’s a bit strange to refer Z-42 as “aerobatic aircraft”, moreover the 4-seat Z-43. As for me, it would be more correct to specify Z-42/142/242 as trainers, and Z-43/143 as utility aircraft.

And also some remarks regarding Hesham’s additions – especially Z-33 and Z-41 projects. Hesham, you say that Z-33 was 2-seat; what’s your source about it? According to Nĕmeček, Z-33 (named Derviš) actually looked much like your description, but was only 1-seat. Nĕmeček also claims that Z-33 was powered by 40-hp engine and projected maximum speed was 154 km/h. It was designed by eng. Ladislav Marcol – so most probably it was derived from his “homebuilt” PLK-5, rather than from Z-22 designed by Karel Tomaš.

Concerning Z-41 - it was mostly the same Z-42, but lighter, with 4-cylinder M-132 engine instead of 6-cylinder M-137. M-132 was projected as M-332 “aerobatic” version without compressor (it referred to M-332 in the same way as M-137 to M-337). But finally M-132 engine was never produced, and therefore Z-41 also remained on paper.

I attach here an updated version of AM’s list: I corrected some dates, added designers’ names and added the data about many unrealized projects (either mentioned or not in Hesham’s post). The only remaining “mysteries” are: Z-XVII, Z-XIX, Z-27, Z-29, Z-40, Z-49 and the gap between Z-52 and Z-61. (Z-40 was probably skipped, as it was “common name” for the whole, highly unified family from Z-41 to Z-46). I attach also the photo gallery of pre-war Zlins (the postwar ones are common known, I think).

I posted more info and pictures about unrealized pre-war Zlin projects (including the first Z-X and Z-XII !) at a new topic: http://www.secretprojects.co.uk/forum/index.php/topic,9787.0.html. Additional info about the postwar projects here: http://www.secretprojects.co.uk/forum/index.php/topic,5233.0.html.
Click to expand...


My dear Redstar72,


it is the first time to see your respond here,so I agree with you about Z XIII,but there was also the Z-13 and Z-113 a glider aircraft of 1946 up to 1949 (not related to Z XIII,a motor glider,which was built in 1937 in a single prototype),and for the Z-33 was mentioned in the General Aviation for Airlife
publishing,as a two seat trainer and also called PLK-5.


For the Z-41,you are right,but I just displayed it as its original design,and for Z-42,it was a production version of it with some improvements.
 
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Z.32 also called Let LG.32...
 

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Hi,


here is a strange crane version of Zlin Z-35,did anyone hear about
it before ?.


L + K magazine.
 

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Hi,

a full list will be here during next days.
 
Oops,

I found in reply # 5,my dear Redstar displayed a Doc. for all Zlin aircraft and Projects,,and I only want to add;

Z-237 was a revised designation for Z-37T-2,a two-seat trainer agricultural aircraft
Z-337 ------?
Z-437 was a Z-37 with twin rear-facing rear seats,named Kurier,prototype only,OK-UJG (c/n 009P)
 
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From L+K 14/1974,

it's the first time to hear about Z-312 ?.
 

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From L+K 16/1974,

the first time to hear about Z-225,and Z-325 with butterfly tail,a Projects.
 

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hesham said:
Oops,

I found in reply # 5,my dear Redstar displayed a Doc. for all Zlin aircraft and Projects,,and I only want to add;

Z-237 was a revised designation for Z-37T-2,a two-seat trainer agricultural aircraft
Z-337 ------?
Z-437 was a Z-37 with twin rear-facing rear seats,named Kurier,prototype only,OK-UJG (c/n 009P)
Click to expand...

From L & K magazine.
 

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hesham said:
From L & K magazine.
Click to expand...
Could you clarify the source? If I'm reading the magazine right, "L + K 24/03" means Letectví + kosmonautika of March 2024. But your reply came nine months before that issue was published. Am I misunderstanding the way L + K dates their magazines?
 
Hi Zlea,

it's issue 2003/24,the year is 2003 and it's numbered 24.
 
hesham said:
Z-90 was a project of four-seat lightplane powered by two
260hp Textron Lycoming engine.
Click to expand...

From JAWA 1993-94.

I will speak about all of his list later.
 

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hesham said:
I will speak about all of his list later.
Click to expand...

As I promised,

Z-I was a single seat glider
Z-II was also a single seat glider
Z-III was a single seat gider
Z-IV was a single seat glider
Z-V was a single seat glider
Z-VI was a single seat glider
Z-VII Akela was a high-wing single seat glider
Z-VIII Sidlo was a single seat glider
Z-IX Pošták was an ultralight single seat aircraft
Z-X was a single seat shoulder-high-wing glider
Z-X/II was a high-wing ultralight monoplane,powered with 25-hp engine,
remained a project only
Z-XI was a two-seat ultralight aircraft
Z-XII (Z-12) was a tandem two-seat low cantilever wing sporting monoplane,powered by one 47 hp Zlin Persy II engine
Z-XII/II was a four-seat low cantilever wing monoplane,powered by two
95 hp Walter Minor 4 engines,Project
Z-XIII was a single or two seat low cantilever wing racer monoplane,
powered by one 130 hp Walter Major Four engine,1937
Z-13 was a single seat glider,after WWII
Z-XIV was a 4/5/6 seat low cantilever wing light transport monoplane,
powered by two 95 hp engines,Project
Z-XV was a tandem two-seat low cantilever wing light monoplane,p[owered
by one 105 hp Zlin Toma engine
Z-XVa was a side-by-side two seat project version of Zlin Z-XV
Z-XVI was two-seat, high-wing monoplane with 55-hp Persy III opposite engine
Z-XVII ------?
Z-XVIII was a tanem two-seat cantilever wing light aircraft,powered
by one Zlin Persy 4-II engine,project
Z-XIX ------?
Z-XX (Z-20) was a six-seat low cantilever wing light transport monoplane,
powered by two 240 hp Argus As10 C engines
Z-XXI (Z-21) was tandem two-seat low cantilever wing courier and liaison
monoplane,powered by one engine,with retractable landing gear,Project
Z-XXIa was a developed project version of Z-XXI
Z-22 Junak was a side-by-side two seat low cantilever wing trainer monoplane,powered by one 75 Praga D engine
Z-23 Honza was a single seat high parasol wing glider
Z-24 Krajanek was a single seat high wing glider
Z-25 Sohaj was a single seat high-wing glider or sailplane
Z-26 Trener was a tandem two-seat low-wing trainer monoplane,
powered by one 180 hp Avia M 137 engine
Z-27 ------?
Z-28 was a four-seat utility low-wing utility monoplane,it was a counterpart for Avia Ae-45 and looked much like twin-engined Z-22 Junak. The engines were Walter Minor 4-III, 105 hp each,project of 1947
Z-29 ------?
Z-30 Kmotr was a single seat mid-wing sailplane
Z-31 ------?
Z-32 Frajir was a single seat glider project
Z-33 Darvis was a single seat low-wing sporting and tourist monoplane
project,with 40 hp engine, reaching 154 km/h maximum speed
Z-34 was a high-wing twin boom agricultural monoplane project,
powered by two 210 hp two M-337 engines
Z-35 Heli Trener was a two-seat trainer helicopter,four-cylinder Walter M-332 engine
Z-35 Flying Crane was a flying crane version of Z-35,project only
Z-36 was single-seat mid-wing ultralight aircraft project,powered with 36 hp Jawa engine
Z-37 Cmelak was a single seat low-wing agricultural monoplane,powered
by one 315 hp Avia M462 engine
Z-38 was a project of agricultural autogyro, designed by eng. Jan Mikula in 1963. Powered by M-337, it could carry 300 kg of chemicals
Z-39 was a tandem two-seat low-wing trainer project from 1963, powered by M-137 engine (180 hp), with tricycle gear
Z-40 was a light aircraft project,no details
Z-41 was a low wing side-by-side two seat aerobatic cabin monoplane,
Project
Z-42 was a side-by-side two-seat low cantilever wing trainer monoplane,
powered by one 180 hp Avia M 137 engine
Z-43 was a four-seat low cantilever wing light aircraft,based on Z-42,
powered by one 210 hp Avia M 337 engine
Z-44 was a single seat aerobatic Z-42 with tailwheel u/c and M-137A engine,
Project
Z-45 was a single seat crop sprayer with 500 litre hopper and 210 hp M-337 engine,Project
Z-46 was eight seat high wing twin engined light aircraft,Project
Z-47 was ahigh wing utility aircraft with PT-6 turboprop engine,Project
Z-48 was a six seat twin boom pusher aircraft wit turboprop engine,Project
Z-49 ------?
Z-50 was a single seat low cantilever wing acrobatic and sporting monoplane,powered by one 260 hp Lycoming O-540 engine
Z-51 was a tanden two-seat mid-wing twin boom light and trainer aircraft,
powered by one 210 hp M 337 pusher engine,Project
Z-52 was a side-by-side two seat shoulder high wing trainer monoplane,
powered by one M 201 engine,Project
Z-53 to Z-59 ------?
Z-60 was a light aircraft Project,no more Info.
Z-61L was a tandem two seat low cantilever wing military trainer aircraft with 300 hp engine,Project
Z-90 was a four-seat low cantilever wing lightplane powered by one 260 hp Textron Lycoming engine,Project
Z-113 was a single seat glider,based on Z-13
Z-120 was a project of six-seat with retractable undercarriage,
a stretch version of Z-20 twin engined low wing light monoplane
Z-122 was deveoped from Z-22 but powered by one 105 hp Toma
engine
Z-123 was developed from Z-23 glider
Z-124 Galanka was a single seat high-mid-wing glider,developed
from Z-24
Z-125 Sohaj 2 was a single seat glider,it was developed from Z-25
Z-126 introduced in 1953, Czech military designation C-105, all-metal wing instead of original wooden wing
Z-130 Kmotr was a single seat glider,it was developed from Z-30
Z-135 Heli-Trener was a larger version of Z-35 helicopter,with more powerful six-cylinder Avia M-337 engine
Z-137 was a two-seat trainer version of Z-37
Z-142 was a version of Z-42,with a forward-sliding bubble cockpit canopy, powered by one 225 hp M-337AK engine
Z-143 was an improved of Z-43,a version introduced in 1992, powered by a six-cylinder Lycoming O-540 engine
Z-181 was a two-seat primary trainer aircraft. Czech production version of the Bucker Bu 181
Z-192 was unknown design,maybe a light aircraft ?
Z-212 was a two-seat trainer version of Z-12,but equipped with a Walter Mikron engine
Z-222 was the same Z-22,but had a retractable landing gear
Z-224 was a variant of Z-24 glider aircraft,no details
Z-225 Medak was a single seat high-wing glider,based on Z-25
Z-226 was a more powerful Walter Minor 6-III six-cylinder engine of
the Z-26, C-205
Z-237 was a revised designation for Z-37T-2,a two-seat trainer agricultural aircraft
Z-242 was a developed version of Z-142
Z-281 was a two-seat primary trainer aircraft,from Z-181, powered by a
Toma 4 piston engine
Z-282 was mentioned in Czech museum,no details, @Sarastro
Z-325 was a single seat glider Project,a Z-125 with V-tail
Z-326 was a version of Z-26,introduced in 1959, with an electrically retractable undercarriage
Z-337 was unknown version of Z-37,maybe a project
Z-381 was a two-seat primary trainer aircraft,version of Z-181, powered
by one 105 hp Walter Minor piston engine
Z-400 Rhino was utility aircraft powered by 600hp Orenda
Recip OE600 engine
Z-425 Sohaj 3 was a single seat glider,based on Z-25
Z-426 was agricultural version of Z-326 but not built
Z-437 was a Z-37 with twin rear-facing rear seats,named Kurier,prototype only
Z-526 was a version of Z-26,with the Walter 6-III carburettor's six-cylinder engine
Z-526A was a single-seat aerobatic aircraft
Z-526F was an improved version. M-137 engine with fuel injector
Z-626 was “simplified” version of aerobatic Z-526AS, with fixed landing gear, designed in 1967,Project
Z-726 was a modified Z-526 with shortened wings and fuselage
Z-


- To be continued
 
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I don't know that,the Z-50 has many variants ?.
 

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