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Post by nm on Mar 1, 2008 22:45:15 GMT 1
I only just realised this is the type of aircraft the Bismarck carried: this particular YouTube video has a long account of the plane - in the video it has one float (with an outrigger each side) but they ended up with twin floats (as on the Bismarck) making it look quite different.
Maybe this test led them to go for the twin floats!
NM
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Post by alanv on Mar 1, 2008 23:17:01 GMT 1
Hi nm. Check out wings pallette. there are quite a few references and colour schemes. gives the planes serial numbers and colours as the navy ones were all different depending on which ship they were on. Hopefully the site will help when we come to the plane...
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Post by Baz on Mar 5, 2008 12:53:12 GMT 1
Hi nm Just thought I would add some background. Reference - War Planes of the Second World War, volume 6, Floatplanes. Compiled by William Green, published by McDonald 1962 Precise of content ARADO AR 196 Designed in 1937 by Arado Flugzeugwerke. 4 Prototypes completed and flown in 1938 The 1st x 2nd prototypes Ar 196V1(D-IEHK) and V2 (D-IHQI) had twin long single step all metal floats attached to the fuselage by a system of steel tube struts, but the 3rd and 4th prototypes - Ar 196 V3 (D-ILRE) and Ar196 V4 (D-OVMB) had a single central float and and stabilising floats outboard under the wings Prototypes were powered by a BMW 132Dc 9 cylinder radial engine rated at 880hp. Twin blade controllable pitch airscrew The V1 was the first to test a 3 blade variable pitch VDM airscrew (can anyone shed light on the difference between controllable pitch and variable pitch ? )The aircraft was first encountered when seen aboard the 'Graf Spee' in December 1939. Principal production variant - AR 196A-3. This model closely resembles the V1 prototype Baz
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Post by alanv on Mar 5, 2008 17:18:30 GMT 1
If I.m not mistaken Baz variable pitch is automatic. Whereas controllabe pitch can be adjusted by the pilot. But I stand to be corrected on this. There are three arado ar 196s' left. Two in the us off the Pinze eugen and one somewhere in europe but I can't remember where......
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Post by nm on Mar 5, 2008 17:58:02 GMT 1
I posted this earlier somewhere else: maybe it should be in this thread too: Engine falls off at 43 seconds; fire visible at one minute two seconds www.youtube.com/watch?v=0qWik6OIz2wSurvivors Copied from Wikipedia: Ar 196 A-3 Aircraft operated by Bulgarian Air Force is displayed at the Museum of Aviation and the Air Force, Plovdiv, Bulgaria. Ar 196 A-5 Aircraft formerly equipped the German cruiser Prinz Eugen is displayed at the National Air and Space Museum, USA. Ar 196 A-5 Aircraft formerly equipped the German cruiser Prinz Eugen is displayed at the National Museum of Naval Aviation, USA. The Aircraft Historical Museum, Sola, Norway, has a fuselage frame that was raised from the wreck of the German cruiser Blücher. In all versions, 541 Ar 196s (526 production models) were built before production ended in August 1944, about 100 of these from SNCA and Fokker plants. Operators Bulgarian Air Force Finnish Air Force Luftwaffe Royal Norwegian Navy Air Service Royal Norwegian Air Force Romanian Air Force NM
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Post by kriegsloko on May 25, 2008 18:19:20 GMT 1
Hi nm Just thought I would add some background. Reference - War Planes of the Second World War, volume 6, Floatplanes. Compiled by William Green, published by McDonald 1962 Precise of content ARADO AR 196 Designed in 1937 by Arado Flugzeugwerke. 4 Prototypes completed and flown in 1938 The 1st x 2nd prototypes Ar 196V1(D-IEHK) and V2 (D-IHQI) had twin long single step all metal floats attached to the fuselage by a system of steel tube struts, but the 3rd and 4th prototypes - Ar 196 V3 (D-ILRE) and Ar196 V4 (D-OVMB) had a single central float and and stabilising floats outboard under the wings Prototypes were powered by a BMW 132Dc 9 cylinder radial engine rated at 880hp. Twin blade controllable pitch airscrew The V1 was the first to test a 3 blade variable pitch VDM airscrew (can anyone shed light on the difference between controllable pitch and variable pitch ? )The aircraft was first encountered when seen aboard the 'Graf Spee' in December 1939. Principal production variant - AR 196A-3. This model closely resembles the V1 prototype Baz The difference between controllable pitch & variable pitch aircraft propellors is the following: - In a controllable pitch propeller the pilot can either adjust the prop's angle of attack to fine pitch for take-off & low speed flying or to course pitch for cruising & high speed flying. There's no in-between here
- Concerning variable pitch, the pilot has more control over the pitch of the prop and can make constant (i.e. infinitely variable) adjustments to prop pitch.
There's actually a third option: that of a constant speed propeller that adjusts automatically to provide the best performance for the particular circumstances ;D. Here's an interesting Wikipidea article on the subject en.wikipedia.org/wiki/Constant_speed_unit
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Post by eric on May 26, 2008 7:13:05 GMT 1
Thanks for that info Kreigsloko, always wondered what the dif was between them.
A I correct in believing that the early Spits and Hurries had fixed pitch two blade props, and only got good performance when American made variable pitch three bladed props were fitted?
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Post by alanv on May 26, 2008 10:10:16 GMT 1
Think your right there Eric. I'm not sure if they were american,but all the early pics of the prototypes seem to show 2 bladed props...
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Post by Baz on May 27, 2008 10:23:27 GMT 1
Ah K'loko..............you are a font of knowledge. Thanks for clearing that up. I'm a WW2 aircraft lover from way back................but technically ignorant......................so....................... Off to my little green book I went to find out some background to the Spitfire props What I am transcribing below is gobildy gook to me, but may mean something to you lot out there........... ..................How did we get from Arado to Spitfire............ 'Initial production Spitfire 1's (first of 1,566 produced flew 4 May 1938) employed a de Havilland two blade fixed pitch wooden airscrew similar to that of the prototype '.................... Battle of Britain ................during the battle 'the type 329 Spitfire II' was introduced. 'The Merlin XII engine ............driving a Rotol 3 blade Jablo constant speed airscrew..........' ...............' The threat of high altitude bombing from the Luftwaffe in 1941' .... a Spitfire VB ...(R7120) . fitted with a Merlin 47 and a '4 blade Jablo Rotol airscrew.' 'This served as the basis for the type 350 Spitfire VI .....The Spitfire XIV was married to a Grifon 65 engine driving a 5 blade Rotol airscrew............ So thats a very very short history of airscrews on Spits.... Baz
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Post by eric on May 27, 2008 18:23:42 GMT 1
They wern't allowed to put the XIV Spit into a full power dive as she would touch the sound barrier!
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Post by Baz on May 28, 2008 11:07:08 GMT 1
Another interesting statistic for the XIV It was te first to shoot down an ME262 in hand to hand combat.....so to speak. 5 October 1944
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Post by nm on May 28, 2008 12:46:38 GMT 1
The fastest parts moving through the air were the propellor tips.
More powerful engines? you need more blade area. Longer blades have faster tips, so add more blades instead (go from two to three, to four, five, six - not sure if there are some seven-bladed turboprops around now.
NM
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Post by nm on Apr 27, 2009 16:11:13 GMT 1
Someone sent me an Italeri newsletter:
Scheduled for October 2009 is a 1:48 scale model of the Arado Ar 196 A-3, listed at €31.49.
nm
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Post by Thymen on May 1, 2009 21:03:53 GMT 1
There's actually a third option: that of a constant speed propeller that adjusts automatically to provide the best performance for the particular circumstances ;D. Here's an interesting Wikipidea article on the subject en.wikipedia.org/wiki/Constant_speed_unitThat's roughly what is used on some of the "smaller" ships, works great. Thymen
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Post by Robert on Aug 1, 2009 9:47:18 GMT 1
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