avatar_Daryl J.

Mirage III, Mirage V, Nesher, Dagger, and Kfir

Started by Daryl J., April 22, 2006, 11:48:20 PM

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PR19_Kit

That'll be one of Mr. Cherrie's things then.  :thumbsup:
Kit's Rule 1 ) Any aircraft can be improved by fitting longer wings, and/or a longer fuselage
Kit's Rule 2) The backstory can always be changed to suit the model

...and I'm not a closeted 'Take That' fan, I'm a REAL fan! :)

Regards
Kit

Tophe

Uh? The name Cherrie just reminds me the (nice!) air-cartoonist Pat Cherry https://blackheartart.com/ngg_tag/aircraft/nggallery/page/12

Something else: a Mirage with ogival wing like the Moskalyev SAM-9 Strela*: <_<

* with a 1/72 kit at http://www.unicraft.biz/on/strela/strela.htm
[the word "realistic" hurts my heart...]

Tophe

The Mirage 5 had a delta low wing, then the Mirage F1 had a high wing with tailplanes, but... what between them?
The answer is top secret but I tell you: the Mirage 5ET had a low wing with tailplanes, don't repeat it (they would say you are crazy, to hide the truth of course): <_<
[the word "realistic" hurts my heart...]

Tophe

63cpe's great 4-engined F-5 at https://www.whatifmodellers.com/index.php?topic=48796.0
gave me the idea to imagine the same process on Mirage 5 (into a 2-engined Mirage 55, up and down like EE Lightning not lateral/classical/boring like Mirage 4/4000): <_<
[the word "realistic" hurts my heart...]

Tophe

For low landing speed (for the Navy) an inverted delta is good: <_<
[the word "realistic" hurts my heart...]

Tophe

And I have seen on https://www.secretprojects.co.uk/threads/convair-f-106-projects.893/ an interesting batch of F-106 derivative projects, inspiring related Mirages in my mind: <_<

[the word "realistic" hurts my heart...]

Tophe

I consider building someday this couple with Mark1 1/144 kits: <_<

from http://www.kristofmeunier.fr/Mirage8_ae.jpg
BSS is TBWT for export (twin-boom without tailplane)
SD is WF for export (without fin)
[the word "realistic" hurts my heart...]

Tophe

I have been inspired by ericr's scale-o-rama Dornier joke at https://www.whatifmodellers.com/index.php?topic=37003.3330
and that made me play with Mirage's canopy: <_<

(the link being http://www.kristofmeunier.fr/Mirage8_af.jpg )
[the word "realistic" hurts my heart...]

Tophe

This Mirage with 2 noses is not beautiful but weird: <_<

(the link being http://www.kristofmeunier.fr/Mirage8_ag.jpg )
[the word "realistic" hurts my heart...]

Tophe

The HAL Tejas is a mid-wing delta fighter, that came from the ADA Tejas design, that (according to my dream) came from the Mirage Tejage testbed <_<

the link being http://www.kristofmeunier.fr/Mirage8_ai.jpg
[the word "realistic" hurts my heart...]

Tophe

Quote from: Tophe on January 26, 2021, 01:16:10 AM
I consider building someday this couple with Mark1 1/144 kits: <_<

from http://www.kristofmeunier.fr/Mirage8_ae.jpg

from strobez's topic https://www.whatifmodellers.com/index.php?topic=49115.0
Quote from: strobez on March 20, 2021, 09:26:09 AM
1/144
the build will feature the Kfir
Well, with 1/144 Kfir I may correct/complete my double little Mirage project:

= link http://www.kristofmeunier.fr/Mirage8_ak.jpg
[the word "realistic" hurts my heart...]

Weaver

Found these extracts from contemporary articles on the Avon-Mirage here: https://www.key.aero/forum/modern-military-aviation/79024-dassault-avon-powered-mirage-iiio-prototype


Article 1 (during Le Bourget 1961)

"The civil engine being shown is the RA.29/6 turbojet of 12,725 lb. of thrust. This version of the civil Avon powers the Caravelle 6. The company is also showing an RB.146 military Avon of 12,220 lb. of thrust with a reheat system that gives it an augmented thrust of 16,000 lb. In this form the engine is installed in the Dassault Avon Mirage IIIO. The same engine also powers the latest version of the Saab Draken, but in this case it has a Swedish reheat system."

"The Avon Mirage, as we showed in a special article in our issue for Dec. 2 1960, has been developed as an export version and the 16,000 lb.s.t. (with reheat) Avon 67 engine makes it one of the most potent weapons in development in Europe. An SEPR 841 rocket pack is an optional extra to obtain optimal performance at altitudes above 60,000ft., but even without this aid the Avon Mirage takes only a fraction over six minutes to reach 50,000 ft."

Source: "The Aeroplane and Astronautics, May 25, 1961", compiled in The Aeroplane and Commercial Aviation News, 1966, pp. 586-587



Article 2 (the Dec. 2 1960 article mentioned above)


Rolls Royce Power
For export, a prototype Mirage III is being built, powered by a Rolls-Royce Avon Mk. 67 or R.B.146, which is similar to some Lightning powerplants. The R.B.146 delivers 12,500 lbs static thrust and 16000 lb. with reheat, compared to the 9370/13200 Ib. of the Atar 9B in the Mirage IIIC. With an assumed intake efficiency of 85%, the British engine will maintain 12600 Ib. thrust at M=2 and 36000 ft. Installation of the R.B.146 involves virtually no modification, and this engine has a considerably better specific fuel consumption than the Atar.

The engine compartment remains unchanged, the turbojets being almost identical in diameter except for the Avon's slimmer afterburner. The R.B.146 slides forward on the same two lateral rails for installation as the Atar, after removal of the double-skinned rear fuselage. Rear fuselage doors give additional access, although the engine continues to be reached principally through the fuselage mainwheel wells for servicing. No change in intake configuration is needed despite the 3% increase in mass flow of the Avon, except for the alteration of the shock-cone supersonic movement ratio. Weight increase with the Avon is about 640 lb., which causes a slight aft CG movement. Time for an engine change is quoted by Dassault as two hours.

As the other component of the intercepter powerplant, the SEPR 841 rocket pack is completely self-contained, with an integral 69 gal. tank for the nitric acid propellent, and a six- bolt attachment to the rear-fuselage recess. A telescopic spline-shaft picks-up via a pneumatic clutch with the separate turbojet accessory gearbox to drive the rocket pack pumps, which feed TX Furaline from a 32-gal. tank in the gun bay and the acid propellent to the combustion chamber. Rocket operation is controlled by a three-position switch in the cockpit which permits almost instantaneous election of half or full thrust (1,654 or 3,374 lb. at sea level). At full power, which reaches 3.704 Ib. at 52459 ft., there is a continuous output of 80 sec., which is naturally doubled at half-thrust.

The specific consumption of the SEPR 841, which is manufactured by Hispano-Suiza, is 0.0048 Ib./lb./sec. at sea-level, and 0.00435 at 52500 ft Through the widespread use of light-alloy parts, stainless steel being limited to the turbine and some parts of the oxidizer circuit, the unit has a total dry weight of only 452 Ib. From the maintenance viewpoint, it is cleared for 50 flights between major checks. It is jettisonable for safety in a belly landing, and when not required, is replaced by a finned fuel tank of up to 130 Imp. gal. capacity.

Source: The Aeroplane and Astronautics, Volume 99, Number 2563, Dec 2. 1960", compiled in The Aeroplane and Commercial Aviation News, 1966, pp. 709




Article 3 (exact publication details unknown)


Currently shopping in the international fighter market are Australia, Israel and Switzerland, the main contenders being the F-104, and the Mirage III of Generale Aeronautique Marcel Dassault. There is also the excellent SAAB Draken, which is something of a dark horse, except in Switzerland, where the choice has narrowed between it or the Mirage.

On purely a technical basis, the "export" Mirage III, powered by a Rolls-Royce R.B.146 turbojet, seems in a strong position. It is the only M = 2 interceptor which has shown a take-off and landing performance, with a full operational load, of less than 1,000 yd., plus a grass field capability. It is also a more recent design than the F-104, and is therefore that much further from obsolescence, the F-104 having originated from design studies in 1950, when Korea showed the need for more advanced American military aircraft."

Source: The Aeroplane and Commercial Aviation News, 1966, pp. 707

"Things need not have happened to be true. Tales and dreams are the shadow-truths that will endure when mere facts are dust and ashes, and forgot."
 - Sandman: A Midsummer Night's Dream, by Neil Gaiman

"I dunno, I'm making this up as I go."
 - Indiana Jones

Tophe

[the word "realistic" hurts my heart...]

Tophe

The Mirage came in 1956 a little later than the ONERA Deltaviex (1953), a mix was possible: <_<

= link http://www.kristofmeunier.fr/Mirage8_aq.jpg
[the word "realistic" hurts my heart...]

Tophe

[the word "realistic" hurts my heart...]