Re: Some enlarged and "tweaked" known photos of Ar 234s

[Karoband]

Thanks, Egbert. There's more to come.

[Karoband]

http://forum.12oclockhigh.net/album....pictureid=1545

The Arado Ar 234 was designed at Theodore Rowehl's behest by an Arado team in 1941 to be a recce high-wing monoplane replacement for the Ju 86 R using two Daimler Benz ZTI 5000 or Junkers Jumo 004 turbojet engines. This photo shows Ar 234 V1 W.Nr. 130001 "TG+KB" with two Jumo 004 A-0 engines in July 1943. Note the radical concept for take-off and landing using a trolley and skid. The first flight took place on 30 July 1943 at Münster-Rhein, the pilot being Arado's flugkapitän Heinz Selle.


http://forum.12oclockhigh.net/album....pictureid=1546

69. Upon lift-off. from the level, concrete runway, the trolley was jettisoned from the undercarriage, deploying a drogue chute to bring it to a quick halt. However, the long take-off roll on the awkward trolley caused Arado to find a starthilfe (booster) to get its A-series "Antons" into the air more quickly.


forum.12oclockhigh.net/album.php?albumid=73&pictureid=1547

70. Upon landing, the skid was extended as were the outriders under the engine nacelles in order to land on the grass beside the concrete runway.


http://forum.12oclockhigh.net/album....pictureid=1548

71. This poor screenshot show how the V1 was lifted by three tubular jacks in order to place the trolley under the skid again.


http://forum.12oclockhigh.net/album....pictureid=1549

72. This photo shows a frontal view of V1 revealing the inadequacy of the bare-bones structure of the trolley's attachments with no stabilization under the outriders at all.
The Ar 234 V1 was seriously damaged on landing on 29 August 1943 and was then broken up for parts.

[Karoband]

http://forum.12oclockhigh.net/album....pictureid=1550

73. This frontal view of Arado Ar 234 V4 W.Nr. 130004 "DP+AY" shows the solution for the problems that the Arado designers came up with. Under the wings, outside of the engine nacelles, are two kraft-ei (power-eggs) to assist with lift-off. As well, the new trolley is less flimsy with supports for the outriders.


http://forum.12oclockhigh.net/album....pictureid=1551

74. The starthilfe power-eggs were a pair of reuseable Walter 109-500 rocket boosters built by Heinkel using T-Stoff and Z-Stoff to create a sustained thrust of 500 kg. each for thirty seconds. Note the parachute pack attached to the front of the "egg". In documents these "eggs" are referred to as R-Geräte (Rauchgeräte).


forum.12oclockhigh.net/album.php?albumid=73&pictureid=1552

75. This poor screen shot perhaps shows best the effectiveness of these "power eggs" easily cutting the take off run to one-third and boosting the Arado to 150 metres.

http://forum.12oclockhigh.net/album....pictureid=1553

76. Here, the boosters are being jettisoned after burnout, with their parachutes deploying. It should be obvious that, due to this design, the Arado Ar 234 Antons would require a great deal of equipment and ground support if they were to be deployed operationally to a forward base.


http://forum.12oclockhigh.net/album....pictureid=1554

77. Another innovation of the Ar 234 A was the concept of a braking parachute in the rear fuselage to greatly reduce the landing roll especially in an emergency. Here, the Ar 234 V3 W.Nr. 130003 "DP+AX" deploys the open-lattice type chute. This feature became standard on all Ar 234 B aircraft.

[egbert]

Great posts, thanx