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1

Tuesday, March 21st 2017, 2:05pm

Dassault Marin

I'm kinda derping around on a drawing of this aircraft, but I haven't finished it yet.

Quoted

Dassault MD.455 Marin
The MD.455 Marin is a navalized variant of the Dassault MD.451 Ouragan II. The Marin received doubled main and nose wheels, reinforced landing gear, folding wings, and a tailhook. Some attempts were made during production to increase the aircraft's effective operating range. The final aircraft was heavier than the original Ouragan, and had a lower top speed and rate of climb.

The Marin entered service with the Aeronavale in September of 1947, re-equipping part of the fighter groups of the carriers Bucentaure and Conquérant beginning in early 1948. However, its limitation of low range meant that it could never fully replace the propeller-driven Dassault Milan. Lessons learned on the Marin, as well as the other early French jets, were eventually incorporated into the Dassault Mistral, which appeared in 1950.

General characteristics
Crew: One
Length: 10.73 m (35 ft 2 in)
Wingspan: 13.16 m (43 ft 2 in)
Height: 4.14 m (13 ft 7 in)
Wing area: 23.8 m² (256.2 ft²)
Aspect ratio: 7.3:1
Empty weight: 4,380 kg ( lb)
Loaded weight: 7,644 kg ( lb)
Max takeoff weight: 8,190 kg ( lb)
Powerplant: 1 × Rateau-Anxionnaz A.65 turbojet, 22.2 kN (4,990 lbf)

Performance
Never exceed speed: Mach 0.83
Maximum speed: 910 km/h (491 knots, 562 mph) (Mach 0.74) at sea level
Cruise speed: 725 km/h (391 knots, 450 mph)
Combat radius: 750 km (466 mi)
Ferry range: 1350 km (839 mi)
Service ceiling: 13,000 m (42,650 ft)
Rate of climb: 34 m/s (6,693 ft/min)

Armament
Guns: 4 × 23 mm DEFA revolver cannon with 125 rounds per gun
Rockets: 16× 105 mm (4.1 in) Brandt T-10 air-to-ground unguided rockets; or, 2× Matra rocket pods with 18× SNEB 68 mm rockets each
Bombs: 2,270 kg (5,000 lb) of payload on four external hardpoints, including a variety of unguided iron bombs such as 2× 454 kg (1,000 lb) bombs or 2× 458 liter (121 US gallon) napalm bombs or drop tanks for extended range.


In comparison to the Ouragan II, the Marin lost about 30 km / h speed, and about 4 m/s of climb rate.

2

Thursday, March 23rd 2017, 9:40am

Looks ok to me.

3

Thursday, March 23rd 2017, 6:40pm

Has the Ouragan II been posted yet?

4

Thursday, March 23rd 2017, 8:41pm

I'm pretty sure I posted it somewhere before, but here it is.

I've never firmed up the date when the Ouragan II appears, since I'd intended to introduce it to service at a point when aircraft with similar levels of performance appeared. If everyone will recall, I drew some criticism for my original Ouragan specs a few years back, and chose to divide the type into the MD.450 Ouragan I (which has a weaker engine and entered production in 1945) and the MD.451 Ouragan II, which has the historical aircraft specs. It was my stated intention at the time to introduce the Ouragan II at such a time as aircraft with similar performance entered service.

I think we're definitely close to that point, although the stated numbers for rate of climb might still be on the high end of average (actually, I need to double-check the figures on this, since it seems so high). So I'm leaving it a bit murky as to whether the Ouragan II is currently in service (at the close of 1948) or not. If it is not in service now, then it will be in service before the conclusion of 1948. I anticipate that the follow on Dassault Mystere I will almost certainly have its first flight in 1949 or 1950, and may even enter production sometime in 1950. Alternately, I might leave the Mystere alone, and introduce a fictional Dassault Ouragan III.

For clarity, the Marin was developed simultaneously with the Ouragan II, rather than being a navalized conversion of it.

Quoted

Dassault MD.451 Ouragan II

General characteristics
Crew: One
Length: 10.73 m (35 ft 2 in)
Wingspan: 13.16 m (43 ft 2 in)
Height: 4.14 m (13 ft 7 in)
Wing area: 23.8 m² (256.2 ft²)
Aspect ratio: 7.3:1
Empty weight: 4 142 kg (9,132 lb)
Loaded weight: 7 404 kg (16,323 lb)
Max takeoff weight: 7 900 kg (17,416 lb)
Powerplant: 1 × Rateau-Anxionnaz A.65 turbojet, 22.2 kN (4,990 lbf)

Performance
Never exceed speed: Mach 0.83
Maximum speed: 940 km/h (508 knots, 584 mph) (Mach 0.76) at sea level
Cruise speed: 750 km/h (405 knots, 465 mph)
Combat radius: 450 km (245 nm, 280 mi)
Ferry range: 920 km (500 nm, 570 mi)
Service ceiling: 13 000 m (42,650 ft)
Rate of climb: 38 m/s (7,480 ft/min)
Takeoff distance: 783 m (2,570 ft)
Landing distance: 910 m (2,985 ft)

Armament
Guns: 4 × 23 mm DEFA 501 revolver cannon with 125 rounds per gun
Rockets: 16× 105 mm (4.1 in) Brandt T-10 air-to-ground unguided rockets; or, 2× Matra rocket pods with 18× SNEB 68 mm rockets each
Bombs: 2,270 kg (5,000 lb) of payload on four external hardpoints, including a variety of unguided iron bombs such as 2× 454 kg (1,000 lb) bombs or 2× 458 liter (121 US gallon) napalm bombs or Drop tanks for extended range.

5

Thursday, March 23rd 2017, 10:07pm

Thank you. I recall the discussion regarding the design and your decision to delay it - I just do not recall seeing it posted. I believe that your current timeline for the Ouragan II is quite reasonable. The Marin also appears plausible, standing somewhere between the Ouragan I and the Ouragan II. I do wonder about the need for dual wheels on the undercarriage, but you presumably have your reasons. ;)

6

Saturday, March 25th 2017, 10:31am

I think the Ouragan II timeline is reasonable.
On the rate of climb, I have read a time of 3.15 minutes to reach 3,000m for the OTL Ouragan.