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MrBlueSky1960
09-24-2005, 06:09 AM
Ain't She Sweet...

http://img.photobucket.com/albums/v187/Secudus/Beautiful-Bi-Plane.jpg

http://www.aerofiles.com/curt-xp23.jpg

The Curtiss XP-23 was the last biplane fighter design to be produced by the Curtiss company, and was perhaps one of the best-looking fighter biplanes ever produced by any manufacturer.

The last P-6E in the USAAC order (Ser No 32-278) had been held back at the Curtiss factory for tests. It was completed with an entirely new monocoque aluminum fuselage, new tail surfaces, a new nose, new landing gear, and a turbosupercharged and geared Curtiss G1V-1570-C engine. A three-bladed propeller was fitted. The nose was much sharper and more pointed than that of the P-6E, giving a much more aerodynamically-clean appearance. The cooling radiator was mounted on the underside of the fuselage between the landing gear legs, just as it was on the P-6E. The wings had the same design as the P-6E, but were of all-metal construction rather than wood. However, the wings still had a fabric covering.

The result was an airplane quite different in appearance from the P-6E. Since it was essentially a new design, the aircraft was redesignated XP-23 by the USAAC. The XP-23 was delivered to the USAAC on April 16, 1932. Weights were 3274 lb empty, 4124 lb gross. Maximum speed was 180 mph at sea level, 223 mph at 15,000 feet. Initial climb was 1370 ft/min, service ceiling was 33,000 feet, and range was 435 miles. Armament was one 0.50-cal and two 0.30-cal machine guns, all mounted in the nose.

Although the XP-23 was the fastest biplane fighter yet produced and had an improved altitude performance, the USAAC recognized that the era of the biplane fighter had finally come to an end. Since they had already ordered the Boeing P-26A monoplane fighter, the Army opted not to go ahead with an order for production examples of the P-23.

Even though no production orders were forthcoming, tests still continued with the XP-23. The XP-23 designation was switched to YP-23 when the status changed from "experimental" to "service test". As YP-23, it had its supercharger removed and the three-bladed propeller was replaced by a two-bladed unit. This airplane was later used in a rather interesting test to determine the effects of radiator drag on high-speed aircraft. For a brief period, the aircraft was flown without any radiator at all, the cooling water being pumped through the engine from an isolated tank and discharged overboard rather than being recirculated.

SPECIFICATIONS (XP-23)
Length: 23 ft. 10 in.
Span: 31 ft. 6 in.
Height: 9 ft. 6 in.
Engine: Curtiss V-1570-23 "Conqueror" of 600 hp. with side-type turbo-supercharger.
Maximum speed: 223 mph
Cruising speed: 190 mph
Service ceiling: 33,000 ft.
Maximum weight: 4,124 lbs

MrBlueSky1960
09-24-2005, 06:09 AM
Ain't She Sweet...

http://img.photobucket.com/albums/v187/Secudus/Beautiful-Bi-Plane.jpg

http://www.aerofiles.com/curt-xp23.jpg

The Curtiss XP-23 was the last biplane fighter design to be produced by the Curtiss company, and was perhaps one of the best-looking fighter biplanes ever produced by any manufacturer.

The last P-6E in the USAAC order (Ser No 32-278) had been held back at the Curtiss factory for tests. It was completed with an entirely new monocoque aluminum fuselage, new tail surfaces, a new nose, new landing gear, and a turbosupercharged and geared Curtiss G1V-1570-C engine. A three-bladed propeller was fitted. The nose was much sharper and more pointed than that of the P-6E, giving a much more aerodynamically-clean appearance. The cooling radiator was mounted on the underside of the fuselage between the landing gear legs, just as it was on the P-6E. The wings had the same design as the P-6E, but were of all-metal construction rather than wood. However, the wings still had a fabric covering.

The result was an airplane quite different in appearance from the P-6E. Since it was essentially a new design, the aircraft was redesignated XP-23 by the USAAC. The XP-23 was delivered to the USAAC on April 16, 1932. Weights were 3274 lb empty, 4124 lb gross. Maximum speed was 180 mph at sea level, 223 mph at 15,000 feet. Initial climb was 1370 ft/min, service ceiling was 33,000 feet, and range was 435 miles. Armament was one 0.50-cal and two 0.30-cal machine guns, all mounted in the nose.

Although the XP-23 was the fastest biplane fighter yet produced and had an improved altitude performance, the USAAC recognized that the era of the biplane fighter had finally come to an end. Since they had already ordered the Boeing P-26A monoplane fighter, the Army opted not to go ahead with an order for production examples of the P-23.

Even though no production orders were forthcoming, tests still continued with the XP-23. The XP-23 designation was switched to YP-23 when the status changed from "experimental" to "service test". As YP-23, it had its supercharger removed and the three-bladed propeller was replaced by a two-bladed unit. This airplane was later used in a rather interesting test to determine the effects of radiator drag on high-speed aircraft. For a brief period, the aircraft was flown without any radiator at all, the cooling water being pumped through the engine from an isolated tank and discharged overboard rather than being recirculated.

SPECIFICATIONS (XP-23)
Length: 23 ft. 10 in.
Span: 31 ft. 6 in.
Height: 9 ft. 6 in.
Engine: Curtiss V-1570-23 "Conqueror" of 600 hp. with side-type turbo-supercharger.
Maximum speed: 223 mph
Cruising speed: 190 mph
Service ceiling: 33,000 ft.
Maximum weight: 4,124 lbs

stathem
09-24-2005, 06:13 AM
Lol, a blower on the outside...

HotelBushranger
09-24-2005, 06:47 AM
Hawker Hind is the most beautiful biplane ever made imo. This thing is pretty too but noone near http://forums.ubi.com/groupee_common/emoticons/icon_smile.gif

tigertalon
09-24-2005, 06:56 AM
<BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content">Originally posted by HotelBushranger:
Hawker Hind is the most beautiful biplane ever made imo. This thing is pretty too but noone near http://forums.ubi.com/groupee_common/emoticons/icon_smile.gif </div></BLOCKQUOTE>

Check out Nikitin Shevchenko IS-4. http://forums.ubi.com/groupee_common/emoticons/icon_wink.gif

EDIT: OOPs sorry, I doubt it was ever built. http://forums.ubi.com/images/smilies/35.gif

zlin
09-24-2005, 08:26 AM
Hello http://forums.ubi.com/groupee_common/emoticons/icon_wink.gif

Yes she is a beauty, nice pics

My favorite biplane
Avia B-534 (Czechoslovakia)
Probably the fastest biplane fighter ever produced; given to German allies and used in Russia and Bulgaria.

http://images5.theimagehosting.com/2_2.2.jpg (http://www.theimagehosting.com)

B.534-III
Unit: FFS A/B115
Serial: RC+FS
This B 534 operated with Flugzeugfuhrerschule A/B 115 in Wels. Note that RC+FS has a bubble canopy.

http://images5.theimagehosting.com/2_3.1.jpg (http://www.theimagehosting.com)

B.534-IV
Unit: 7/LLG 1
Serial: H4+GR
Eastern Front winter 1941/42 of 7/LLG 1. This particular machine was used as a DFS 230 glider tug and was involved in a landing accident which flipped the B 534. H4+GR carried an auxillary fuel tank under the starboard wing and a glider tow hook mounted on the starboard rear fuselage.

http://images5.theimagehosting.com/2_4.2.jpg (http://www.theimagehosting.com)

B.534-IV
Unit: I/JG71
Serial: 1
This machine stationed at Bad Aibling. This B 534 was flown by the Staffelkapitan Oblt. Heinz Schumann and still carries the original Czech Air Force camouflage scheme (khaki upper surface, light grey lower surfaces).

http://images5.theimagehosting.com/2_8.1.jpg (http://www.theimagehosting.com)

Unit: FFS/B114
Serial: TC+CL
Stationed at Vienna-Zwolfaxing in 1941. Note the lack of a Swaztika on the tail fin. Undersurface appears to be light blue-grey. Upper surfaces dark green; cowling and tail fin yellow.. Note: those are not red (or any other colour) stripes, but the gun port channels indented along the engine cowling.


http://images5.theimagehosting.com/2_10.1.jpg (http://www.theimagehosting.com)

B.534-IV
Unit: 3./JG71
Serial: 6
Was captured by Germans and equiped Bf.109's engine. November 1939. Based at Eutingen near Stuttgart.

http://images5.theimagehosting.com/abk534-1.1.jpg (http://www.theimagehosting.com)

And last one catching cable http://forums.ubi.com/images/smilies/53.gif yep

http://images5.theimagehosting.com/abk534h1.1.jpg (http://www.theimagehosting.com)

HotelBushranger
09-24-2005, 08:27 AM
Ahhh yes, I remember that too.

Make it, most beautiful biplane to serve in World War 2 http://forums.ubi.com/groupee_common/emoticons/icon_wink.gif That means my Hind is still top dog http://forums.ubi.com/groupee_common/emoticons/icon_razz.gif

zlin
09-24-2005, 08:42 AM
Hello HotelBushranger http://forums.ubi.com/groupee_common/emoticons/icon_razz.gif
I'm going to google Hawker Hind to find out how it looks and something about history of this machine. Hey you are making me busy http://forums.ubi.com/groupee_common/emoticons/icon_biggrin.gif

p1ngu666
09-24-2005, 09:00 AM
theres a sweet fairey aircraft, nose like a spit http://forums.ubi.com/images/smilies/heart.gif

PBNA-Boosher
09-24-2005, 09:02 AM
The B-534 and P-6E are some of my fave bipes of all time.

tigertalon
09-24-2005, 09:27 AM
<BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content">Originally posted by zlin:
My favorite biplane
Avia B-534 (Czechoslovakia)
Probably the fastest biplane fighter ever produced </div></BLOCKQUOTE>

Nice pics Zlin, ty! However, IIRC the fastest biplane ever built was italian Fiat Cr42B, fitted with inline DB601A engine.

Baletzan
09-24-2005, 11:02 AM
I have to go with HBR on this one.
That is one sweet plane. http://forums.ubi.com/groupee_common/emoticons/icon_eek.gif

http://img351.imageshack.us/img351/5769/dahind016va.jpg

msalama
09-24-2005, 01:48 PM
Gents,

Beauties all, but none looks better than the I-153! http://forums.ubi.com/images/smilies/heart.gif

zlin
09-24-2005, 02:23 PM
<BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content">Originally posted by tigertalon:
<BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content">Originally posted by zlin:
My favorite biplane
Avia B-534 (Czechoslovakia)
Probably the fastest biplane fighter ever produced </div></BLOCKQUOTE>

Nice pics Zlin, ty! However, IIRC the fastest biplane ever built was italian Fiat Cr42B, fitted with inline DB601A engine. </div></BLOCKQUOTE>



How about the one equiped with Bf109's engine in 1939 http://forums.ubi.com/groupee_common/emoticons/icon_eek.gif
I still trying to find more information on these biplanes performance. Bf109 engine ? Then Avia should cut the air like a knife http://forums.ubi.com/images/smilies/heart.gif

Baletzan thanks for pic, yep nice piece of work

Badsight.
09-24-2005, 03:32 PM
Tigertalon , at least one Nikitin Shevchenko IS-4 got made , awesome design
<BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content">Originally posted by msalama:
Beauties all, but none looks better than the I-153! http://forums.ubi.com/images/smilies/heart.gif </div></BLOCKQUOTE>

http://xs47.xs.to/pics/05386/i190-i.jpg

it Polikapov's last Biplane design , the I-190 - upgraded I-153 with among other things a curved engine cowl that helps the "hit by the ugly bus" look of the I-153 & a 100 Hp more with its different motor than the I-153 - if they ever got it to run right it would have been produced

btw , wasnt the I-153 the most powerfull production Bi-plane fighter of the 1930's & 40's ?

the Polikapov has 1000 Hp , & get nearly to 370 Kmh nearly at sea level

what Hp & speeds can the normal motor Avia do ?

Secudus2004
09-24-2005, 03:58 PM
She's even better topless... http://forums.ubi.com/images/smilies/16x16_smiley-very-happy.gif

http://img.photobucket.com/albums/v187/Secudus/Toppless.jpg

zlin
09-24-2005, 04:13 PM
<BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content">Originally posted by Badsight.:
Tigertalon , at least one Nikitin Shevchenko IS-4 got made , awesome design
<BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content">Originally posted by msalama:
Beauties all, but none looks better than the I-153! http://forums.ubi.com/images/smilies/heart.gif </div></BLOCKQUOTE>

http://xs47.xs.to/pics/05386/i190-i.jpg

it Polikapov's last Biplane design , the I-190 - upgraded I-153 with among other things a curved engine cowl that helps the "hit by the ugly bus" look of the I-153 & a 100 Hp more with its different motor than the I-153 - if they ever got it to run right it would have been produced

btw , wasnt the I-153 the most powerfull production Bi-plane fighter of the 1930's & 40's ?

the Polikapov has 1000 Hp , & get nearly to 370 Kmh nearly at sea level

what Hp & speeds can the normal motor Avia do ? </div></BLOCKQUOTE>



Technical details B-534 version 4
Type:____________Fighter
Span:____________9.4 m
Lenght:__________8.1 m
Engine:__________Avia built Hispano-Suiza 12Ydrs / 830 hsp.
Max speed:_______380 km/h
Service ceiling:_10500 m
Range:___________600 km
Armament:________4x7.92 mm Mk.30 machine guns



The huge front nose of I-153 is big no no for good speeding (even with big nose speed of I-153 is rather very impressive)
Technical details for I-153 Chaika

Engine: 600-630kW (800-850 hp) air-cooled 9-cylinder M-92R radial engine two-bladed metal propeller of the AV-1 type.
Dimensions:Span of the upper wing: 10.00m; Span of the lower wing: 7.50m; Lenght: 6.17m; Height: 2.80m; Lifting surface: 22.14mÔ┬▓
Performance:Max. speed: 444 kmph at 5600m; Cruising speed: 279 kmph at 2000m; Ceiling: 10700m; Flight range: 470 km or 880 km with additional tanks.; Climbing ability: 3000m withing 3min. 9000m within 13.2min.
Weights: Landing weight: 1452 kg; Take-off weight: 1980-2110 kg
Armament: Basic version: 2 synchronized 7.62mm SKAS machine-guns, with 650 cartridges each
Carrying capacity: Four 25kg, or two 50kg bombs -a total of 200kg of bombs could be carried in the event of reduced flight range. -Six RS-82, or six RS-132 rockets carried in fixtures under the lower wings.

VFS-214_Hawk
09-24-2005, 04:55 PM
This original photo is soon to be in my collection of Curtiss P-6E Hawk photos.

http://x1.putfile.com/9/26617535463.jpg

Secudus2004
09-24-2005, 04:59 PM
Nice... Very nice, thanks for sharing that mate.

Taylortony
09-24-2005, 05:40 PM
What about the Hurricane? that was a cool Biplane in WW2

tigertalon
09-24-2005, 07:02 PM
<BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content">Originally posted by zlin:
How about the one equiped with Bf109's engine in 1939 http://forums.ubi.com/groupee_common/emoticons/icon_eek.gif
</div></BLOCKQUOTE>

http://www.******ssworldrecords.com/content_pages/record.asp?recordid=43996

LeadSpitter_
09-24-2005, 08:52 PM
http://mlk-airbase.wz.cz/msfs/avia534/shots2/Image4.jpg

http://mlk-airbase.wz.cz/msfs/avia534/shots2/Image5.jpg

http://mlk-airbase.wz.cz/msfs/avia534/shots2/Image1.jpg

http://mlk-airbase.wz.cz/msfs/avia534/shots2/Image2.jpg

Feathered_IV
09-24-2005, 09:01 PM
Isn't that the old CFS2 one?

I think I've still got that on a floppy disk somewhere.

woofiedog
09-24-2005, 10:16 PM
http://forums.ubi.com/images/smilies/16x16_smiley-very-happy.gif... http://forums.ubi.com/images/smilies/25.gif

msalama
09-24-2005, 11:49 PM
<BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content">The huge front nose of I-153 is big no no for good speeding (even with big nose speed of I-153 is rather very impressive) </div></BLOCKQUOTE>

Hmmm... That would appear to be the case, yes, but some folks disagree: "Visually blunt nosed and unstreamlined, the designers have achieved an amazing feat here in acquiring more thrust from the hot air exiting the engine cowling than the drag created by the flat nosed front end. The acceleration in a dive, even without power, is contrary to their appearance."

The whole story here. (http://www.polikarpov.co.nz/pages/restoration%20story.html)

PS. That I-190 is a beauty http://forums.ubi.com/groupee_common/emoticons/icon_smile.gif

Badsight.
09-25-2005, 12:29 AM
the Rata & Chaika had low Vne

in FB you can dive them over 600 Km/h with ease , but this is a FB limitation (accurate diving performance)

IRL , even with full power & pointed straight at the earth , Polikapovs wouldnt go over 600 kmh

msalama
09-25-2005, 02:24 AM
Yeah, sez on the pages I linked to in my previous post that I-153M-62's wartime Vne was 449kmph IAS -&gt; pretty low indeed...

Platypus_1.JaVA
09-25-2005, 04:20 AM
Ain't she sweet. Cool looking biplanes from the thirties. I would like to contribute some pics of myself. First, the Fokker C.X It flew with the Dutch and Finnish air corps.

http://www.studenten.net/customasp/axl/image/foto/2-3-2004-9-35-fokker_c.x_klu_with_canopy_parked_side.jpg

And the not so famous Fokker D.XVII It was the last fokker bi-plane fighter. Some have seen action against the German Luftwaffe in 1940 but, where outclassed.

http://www.grebbeberg.nl/bibliotheek/bewapening/gfx/fokker_d17.jpg

HotelBushranger
09-25-2005, 05:09 AM
The XVII's look real nice http://forums.ubi.com/groupee_common/emoticons/icon_smile.gif