CA-X (Long Range Interceptor Aircraft)

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parador

Sage

Posts: 3,829

Tuesday, June 21st 2016, 10:31am

CA-X (Long Range Interceptor Aircraft)

CA-X
CAICO
Type: Long Range Interceptor Aircraft

The CA-X has an all-metal cell with pressurized cabin and a circular fuselage cross-section. At the rear there are two quadrangular air brakes. They become self-activated in critical airspeeds, but can be operated manually by the pilot. In the nose cone is a strong spotlight, which is provided for optical guidance and as landing aid at night.In exchange, a radar device could be installed. Also in the hull there are three fuel tanks with a total volume of over 2000 liters.

The wing has a trapezoidal outline and a laminar profile. There are slats available at the front edge, which extend at the start to 20 ° and at the landing by 45 °. Two additive jettisonable fuel tank with 250 liters can be carried externally.

As powerplant radial motors from E.W.I.L. are used. Due to the generous interpretation also african turbojets may be used . For a reconnaissance variant a serial air survey camera is provided.

As armament two variants are planned, which are interchangeable with each other within a short time. The first version includes three, built between pressurized cabin and nose wheel shaft, installed 37mm guns with 30 shots or four to six 23-mm cannons. The second comprises two guns of 57- or 75-mm caliber. Overall, a weapon or camera payload of up to one ton can be carried.

Variants:
CA-X: standard version equipped with radial engines
CA-Y: advanced version equipped with african turbojet engines

General characteristics:

Dimensions:
Length: 11.54 m
Wingspan: 12.25 m
Height: 3.68 m
Wingarea: 25.0 m²
Empty Weight: 4150 kg
Max. takeoff Weight: 7150 kg

Engine:
2x 14 cyl. air-cooled radial engines EW-2000-A with each 2000hp

Performance:
max. Speed: 650 kph at 5000m
Service ceiling: 10500m
Range: 3200 km

Crew:
1 men

Armament:
3x 37mm machine cannon

Bombload:
up to 1000 kg

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BruceDuncan

Ex chaos ordo

Posts: 12,916

Tuesday, June 21st 2016, 2:06pm

Quoted

As armament two variants are planned, which are interchangeable with each other within a short time. The first version includes three, built between pressurized cabin and nose wheel shaft, installed 37mm guns with 30 shots or four to six 23-mm cannons. The second comprises two guns of 57- or 75-mm caliber. Overall, a weapon or camera payload of up to one ton can be carried.

I have some question about the potential installation of two 57mm or two 75mm cannon on such an aircraft. The single 57mm Molins gun installed on the historical deHavilland Mosquito weighed in at 720 kg with ammunition; two would mass nearly 1,500 kg, exceeding the one-ton weapon payload. I have not found weights for the T13E1/M5 75mm cannon installation on the historical North American B-25, but I strongly suspect that a single such installation would weigh as much or more than the Molins, which results in the same problem.

Interchangeable armaments also raise issues, though it can be accomplished - though "within a short time" is nebulous. Weights, recoil forces, and structural issues are all factors that ought not to be glossed over when operating an aircraft in the field.

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Rooijen10

Mr. Valentines Day

Posts: 9,644

Tuesday, June 21st 2016, 3:48pm

http://www.gunsight.jp/b/english/data/ja-gun-e.htm

The Japanese 57mm 'Ho-401'cannon is given as 150 kg which I think is just the gun. Unfortunately there is no weight given on that site for the Type 88 75mm AA cannon used in the Ki-109.

http://www3.plala.or.jp/takihome/88aa.htm
The weight given here for the Type 88 is 2,450 kg but that is for the whole mount, but if it is the same as the 3"/40 (7.62 cm) 3rd Year Type/8 cm/40 (3") 3rd Year Type/8 cm/40 (3") 11th Year Type/8 cm/40 (3") Type 88 given on navweaps, then the weight is 600 kg for the gun.

Then there is the fact that he's trying to put two 75mm cannons into a plane that is significantly smaller than the B-25 and the Ki-109. 71% the length of the B-25, 64% the length of the Ki-109, 59% the span of the B-25, 54% the span of the Ki-109, 47% the weight of the B-25 and 56% the weight of the Ki-109.

B-25
Length 16.13 m
Wingspan: 20.60 m
Empty weight: 8,855 kg

Ki-109
Length 17.95 m
Wingspan: 22.50 m
Empty weight: 7,424 kg

CA-X
Length 11.54 m
Wingspan: 12.25 m
Empty weight: 4,150 kg

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