View Full Version : Hurricane fitted with a DB601A Engine

11-26-2005, 03:13 AM
Daimler-Benz Hawker (Zmaj) Hurricane

<span class="ev_code_YELLOW">Yugoslav Daimler-Benz Hurricane
DB601A installation undertaken in Yugoslavia, 1940-41. At least one completed in licence-built airframe before German invasion of April 1941.

Little is known of the Royal Yugoslav Air Force (JKRV) and its brief fight with the Luftwaffe and Regia Aeronautica in April 1941. Many Western historians have written it off as small and insignificant. It will surprise many to learn that the JKRV had over 800 aircraft on its strength at the time of the German invasion. By 1941 the JKRV had on its strength over 160 fighters, made up of 73 Messerschmitt Me-109Es, 44 Hawker Hurricane Is and 30 Hawker Fury IIs, as well as 8 Ikarus IK-2s and 12 Rogozarski IK-3s, both locally designed and built.

Its bomber strength of 175 aircraft comprised 70 Dornier Do-17Ks, 60 Bristol Blenheim Is (both being licence manufactured in Yugoslavia by the State Aircraft Factory and Ikarus respectively) and 45 Savoia Marchetti SM-79s.

The situation whereby Yugoslavia had to acquire or manufacture aircraft from whatever source presented itself meant that by 1941, the JKRV was equipped with 11 different types of operational aircraft, 14 different types of trainers and five types of auxiliary aircraft, with 22 different engine models, four different machine guns and two models of aircraft cannon.

The Yugoslav manufactured Dornier Do-17K, for example, was a German aircraft with French engines, Belgian armament, Czech photo-recon equipment and Yugoslav instrumentation! It was a quartermaster’s nightmare!

During 1938, The Yugoslav government concluded an agreement with Hawker to purchase 12 Hurricane Is for the Royal Yugoslav Air Force and followed this up with an order for 12 more together with a manufacturing licence to allow production of the fighter at the Rogozarski (orders for 60) and Zmaj (orders for 40) factories. These plants, together with the Ikarus concern, had been designing and manufacturing sporting and training aircraft since the 1920s.

Production was expected to reach eight per month from each assembly line by mid-1941. In the event, by the time of the German onslaught of April 1941 which put an end to further production, Zmaj had delivered 20 Hurricanes but Rogorzarski had delivered none.

The design team had been working on improved versions of the IK-3. It had originally been planed to power later IK-3s with new 1,100 h.p. Hispano-Suiza 12Y-51 engine. The German occupation of France had frustrated this plan, and it therefore become necessary to consider a British or German engine. The Air Ministry favored the DB 601 A, and as part of IK-3 development program, the Daimler-Benz engine was installed experimentally in a Hurricane airframe in 1940.

Engineers Ilic and Sivcev at the Ikarus plant, Zemun, outside Belgrade, made the conversion, by the fitting of new engine bearers, cowlings and cooling system manufactured at the Ikarus factory.

<span class="ev_code_YELLOW">Zmaj-built Hurricane 1 of the Royal Yugoslav Air Force (JKRV), at Zemun, April 1941.
Although this has an original engine, this aircraft is considered a likely candidate for the
DB601 test. Geographic location aside, it appears that the engine area has been covered
with pristine, unpainted panels, possibly having had the Merlin engine refitted after
DB601 tests were completed</span>

The one Hurricane fitted with a DB601A engine for comparison with the Merlin-engined version was tested early in 1941. The conversion was extremely successful, and experimental aircraft displayed better take-off performance and climb rate than either the standard Hurricane or the Bf 109 E-3 and was only slightly slower than the latter.

At the same time, a 1,030 h.p. Rolls-Royce Merlin III was installed in one of the IK-Z airframes, but this machine had only just been completed at the time of the German attack, and as enemy forces neared Belgrade it was destroyed by the factory workers, together with four other IK-3s undergoing overhaul or modification. JKRV pilots who flew the Hurricane conversion considered it to be superior to the standard model.

Main material contributed by J. Nemcic.

Link: http://www.k5083.mistral.co.uk/PROJECTS.HTM

11-26-2005, 05:39 AM
wow you learn something new here all the time!

that up there is what every BoB hurri pilot would have wanted - be sure : )

11-26-2005, 05:42 AM
Thanks for sharing!

11-26-2005, 05:45 AM
There are some interesting projects on that site! http://forums.ubi.com/groupee_common/emoticons/icon_smile.gif I love to see a photo of the one with 'improved visibility'.


11-26-2005, 05:57 AM
Ty for sharing!

That yugoslavian built figher were IK-2 and IK-3 (not IK-Z).

Here IK-2: (had a 20mm in the nose, plus two 7,7mm in the cowling)

And here an artistic impression of battle for Beograd with IK-3 (quite comparable with hurricane, but cannon equipped):


11-26-2005, 06:03 AM
That's something I never knew of. Thanks for an interesting read there m8 http://forums.ubi.com/images/smilies/25.gif

Hot Space

11-26-2005, 06:41 AM
major_setback... The Bubble Canopy Hurricane does look Mint... Curtis made a Bubble Top, X Version of the P-40 that is Very Sharp Looking, but never made production.

tigertalon... the IK-3 would make a Excellent Bird for the Game... Yugoslavia made a Post War Version that flew until the late 50's.

<span class="ev_code_YELLOW">Ikarus S-49A * Retired *
Forty-five S-49A delivered from 1951. The first prototype of this single-seat fighter was designated S-49 and first flew in 1948. The design was derived from the pre-war IK-3, although it bore a resemblance to the Yak-9. The initial production version, the S-49A with a Klimov VK-105 engine, copied the Yak's mixed wood/metal construction. Production began in 1949 and deliveries officioally commenced on 21 May 1950. Used by the 117th and 204th Aviation Regts. Withdrawn from front-line service in 1957 and retired in 1961. One S-49B was built with a Daimler-Benz DB605 engine.</span>

Link: http://www.yumodel.co.yu/history_of_yugoslav_aviation/ik-3.htm

11-26-2005, 06:46 AM
tigertalon... and yes it should have been IK-3 not Z.
Correction made. http://forums.ubi.com/images/smilies/16x16_smiley-wink.gif

11-26-2005, 06:58 AM
Quite interesting. It seems the Huuri with the DB performed as one would have expected.

Imagine, a Hurri with power. Now that would have been deadly.


11-26-2005, 07:08 AM
Could find any photo's of the Bubble Top Hurricane... but found this while looking.

Rumania ordered 12 Hurricanes, which were in shipment at the outbreak of the war. The machines were delivered, with British technicians reassembling them at the same airfield where German technicians were putting He-112 fighters in order. The two groups kept their distance.
The Rumanian Hurricanes were used by Rumanian forces after the invasion of the USSR in 1941 to defend the Black Sea port of Constanta, which was the major Axis port in the region. The Rumanians also bought three Hurricanes from the Germans, of all people, these aircraft having been seized from Yugoslavia after the occupation of the country (see below). Rumanian Hurricanes gave a good account of themselves against Soviet aircraft, but were all out of service by 1944.

Yugoslavia obtained an ex-RAF Hurricane for evaluation, and then bought a batch of 24 Hurricane Is. These machines were locally fitted with eight 7.9 millimeter (0.312 caliber) machine guns. About 15 were were built by Rogozarski in Belgrade before the Germans overran Yugoslavia in the spring of 1941. As mentioned, the Germans sold three of these aircraft to Rumania.

11-26-2005, 07:27 AM
Ah another chance for me to post my upgraded Hurricane with improved vision http://forums.ubi.com/groupee_common/emoticons/icon_biggrin.gif


11-26-2005, 07:37 AM
briyeo... Very Cool Picture... Excellent Work! http://forums.ubi.com/groupee_common/emoticons/icon_biggrin.gif

11-26-2005, 07:49 AM
Neat. Hurricanes with less suck installed.

11-26-2005, 12:02 PM
Hurricanes need gigantic air intakes. Otherwise it doesn't work.

I also wonder how much better they'd be with a 6 20mm cannon loadout.

11-26-2005, 12:04 PM
Originally posted by BaldieJr:
Neat. Hurricanes with less suck installed.


11-26-2005, 12:11 PM
hurris with prop pitch cheat


11-26-2005, 01:24 PM
Royal Yugoslav AF enjoyed very limited success against Luftwaffe which is understandable considering the circumstances.
Anyway Ikarus family is still enigma for many... IK-3 fighter looks very modern for its time reminds me of Hurri+MS.406 breed.

Anyway last info I have of this fighter is that it will most probably be in Oleg Maddox BoB (Balkans add-on possibly). And not only IK-3...

Related link (http://dragan.freeservers.com/industrija/history.htm)

11-26-2005, 01:46 PM
Email the info to Oleg.. maybe we will get one in game.

11-29-2005, 11:24 AM
Originally posted by briyeo:
Ah another chance for me to post my upgraded Hurricane with improved vision http://forums.ubi.com/groupee_common/emoticons/icon_biggrin.gif


That's a very nice picture!

Here's one more of the IK-3:



11-29-2005, 12:12 PM
Nice one Woofie.

11-29-2005, 12:18 PM
The Rogozarski's are one of truly "Forgotten Battles" candidates IMO. I hope that one day it and all the other planes that saw action, no matter how briefly, over Europe are flyable.

The IK-3 made a good showing but of course it was a foregone conclusion that numbers alone would decide its fate in the air. Ground crew reportedly destroyed the last 2 planes on the ground to keep them from being captured.

11-29-2005, 01:00 PM
Great thread Woofie!

This here is what every Hurri pilot wanted during BoB. Be sure.


A DB605 powered Spitfire!

Its a model but its nice, Ive seen a B&W photo of it in some old Messer book.

This was a conversion done by the Germans on a captured Spitfire V, if I recall correctly it raised its top speed from 372mph up to around 408mph with all round better climb and acceleration. It looks lovely too

11-29-2005, 01:10 PM
You should take a look at this link
Hurri and Spit with DB engine
B17/24 Hybrid.
A nice read.

11-29-2005, 02:07 PM
scottmal1 & mynameisroland... Thank's