forum.ww1aircraftmodels.com

The WW1 modelers' reference library => Engines => Topic started by: Loki on November 05, 2012, 12:49:53 AM

Title: Benz Bz.IV
Post by: Loki on November 05, 2012, 12:49:53 AM

The Bz.IV was a dual-camshaft design, with two intake and two exhaust valves per cylinder. The cylinders were cast iron surrounded by a sheet metal cooling jacket. The crankcase was aluminium and pistons were initially steel but later versions had aluminium pistons. A high compression version of the engine (Bz IVü) was produced from 1917 onwards and can be recognised by the red bands painted on each cylinder.

General characteristics:

Type: 6-cylinder, water-cooled, inline aircraft piston engine
Bore: 145 mm (5.71 in)
Stroke: 190 mm (7.48 in)
Displacement: 18.83 L (1,148.9 in³)
Length: 1,990 mm (78 in)
Width: 530 mm (20 in)
Height: 1,150 mm (45 in)
Dry weight: 370 kg (820 lb)
Components
Cooling system: Water-cooled
Performance
Power output: 170 kW (230 hp) at 1,400 rpm

Applications:

AEG C.VI
AEG J.I
AGO C.IV
Albatros C.VII
Albatros J.I
Chitty 2 (racing car)
DFW C.V
Dobi-II
Friedrichshafen FF.49
Friedrichshafen G.II
Halberstadt C.V
Junkers J.I
LVG C.VI
Pfalz D.XII
R-planes, the German giants of WWI

Title: Re: Benz Bz.IV
Post by: Loki on November 05, 2012, 12:52:08 AM

(http://images.rcuniverse.com/forum/upfiles/440591/Ni24612.jpg)

Title: Re: Benz Bz.IV
Post by: Loki on November 05, 2012, 12:57:04 AM

I hope it's ok to post Wingnut Wings photographs? Posted for reference information and discussion purposes.
http://www.wingnutwings.com/ww/

(http://www.wingnutwings.com/ww/www/products/model_kitsets/32002/archive_photos/benz%20bz.iv%20engine%20lvg%20c.vi%20(1).jpg)

(http://www.wingnutwings.com/ww/www/products/model_kitsets/32002/archive_photos/benz%20bz.iv%20engine%20lvg%20c.vi%20%20(2).jpg)

(http://www.wingnutwings.com/ww/www/products/model_kitsets/32002/archive_photos/benz%20bz.iv%20engine%20lvg%20c.vi%20%20(3).jpg)

Title: Re: Benz Bz.IV
Post by: Loki on November 05, 2012, 01:03:27 AM

Looks to me like you could use Taurus models, http://www.taurusmodels.pl, spark plugs (early version) set 3201

http://www.taurusmodels.pl/Documentation%20SparkPlugs.htm (http://www.taurusmodels.pl/Documentation%20SparkPlugs.htm)


(http://www.taurusmodels.pl/img/reklamyWWW/3201%20SparkingPlugs.jpg)

Added Taurus model image

Title: Re: Benz Bz.IV
Post by: Loki on November 05, 2012, 09:09:35 PM

(http://www.repulomuzeum.hu/Hajtomuvek/Benz250PS/Benz250PS_11.jpg)

(http://www.repulomuzeum.hu/Hajtomuvek/Benz250PS/Benz250PS_12.jpg)

(http://www.repulomuzeum.hu/Hajtomuvek/Benz250PS/Benz250PS_21.jpg)

(http://www.repulomuzeum.hu/Hajtomuvek/Benz250PS/Benz250PS_22.jpg)

(http://www.repulomuzeum.hu/Hajtomuvek/Benz250PS/Benz250PS_23.jpg)

(http://www.repulomuzeum.hu/Hajtomuvek/Benz250PS/Benz250PS_31.jpg)

(http://www.repulomuzeum.hu/Hajtomuvek/Benz250PS/Benz250PS_32.jpg)

(http://www.repulomuzeum.hu/Hajtomuvek/Benz250PS/Benz250PS_51.jpg)

(http://www.repulomuzeum.hu/Hajtomuvek/Benz250PS/Benz250PS_55.jpg)

(http://www.repulomuzeum.hu/Hajtomuvek/Benz250PS/Benz250PS_60.jpg)

Pictures by Zámbori Péter at www.repulomuzeum.hu in 2008 copyright owned.

Title: Re: Benz Bz.IV
Post by: Loki on November 06, 2012, 07:35:29 AM

Wiring loom to magneto.

(http://images.rcuniverse.com/forum/upfiles/440591/ec87467.jpg)

Don't believe that the connection is the same as in the D.III or D.IIIa engines. I'll check and confirm.

Title: Re: Benz Bz.IV
Post by: Des on November 06, 2012, 11:28:37 AM

Thanks very much for posting these photos Loki, they are a wonderful source of reference material for anyone wanting to super detail their model engine.

Des.

Title: Re: Benz Bz.IV
Post by: Loki on November 07, 2012, 10:39:21 AM

Thank you Des.


The magneto's on this Bz.IV engine are different from the D.III and D.IIIa (and D.IIIaü) engines in as much that the electrical connection from the spark plugs fit to the side of the magneto rather than the front.

Please be aware.