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22 Oct 2009, 03:08 (Ref:2566797) | #26 | |
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JMIA was decided to enter Formula 4(Japanese local category).
An interesting controversy has occurred about this matter between Minoru Hayashi and AUTOSPORT(of Japan). It was a start of the controversy that AUTOSPORT had worried about competing intensification of F4. AUTOSPORT insisted that there are a lot of entrants of F4 because the used car can race competitive. If the new car of JMIA participates, the used car becomes not competitive. Then, the number of entrants might decrease. Hayashi objected that because the F4 machine has not evolved, so the used car is competitive. The new car of F4 doesn't sell during this year because of that. This category will disappear if the current situation continues. And the cost decreases in the future if the carbon monocoque of JMIA is widely used. Old cars of the aluminum honeycomb monocoque and the new car of the carbon monocoque of JMIA will run together in next year's F4. Link for their insistence 1)http://as-web.jp/autosport/topics_info.php?no=182 2)http://www.dome.co.jp/column/dt_63c.html 3)http://as-web.jp/autosport/topics_info.php?no=205 4)http://www.dome.co.jp/column/dt_63d.html 5)http://as-web.jp/autosport/topics_info.php?no=210 6)http://www.dome.co.jp/column/dt_63e.html |
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6 Nov 2009, 14:52 (Ref:2577044) | #27 | |
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Tokyo R&D(member of JMIA) developed the new F4 car.
JMIA monocoque is used. http://www.r-d.co.jp/news/F4/RD10Wpamph.pdf |
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8 Nov 2009, 23:09 (Ref:2578516) | #28 | |||
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Quote:
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__________________
'My lovely horse, running through the fields! Where are you going, with your fetlocks blowing in the wind?' |
9 Nov 2009, 03:44 (Ref:2578626) | #29 | |
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Why is the JMIA monocoque epoch-making?
It is because it is a monocoque made of pure CFRP. It is not a alminium honeycomb sandwich manufacturing method. The JMIA monocoque is manufactured by the method of wrapping CFRP prepreg around the mastering model. The advantage and the fault of the JMIA monocoque are as follows. (Advantage) It is possible to manufacture it more cheaply and easily than the honeycomb sandwich manufacturing method. Because the rigidity is uniform, pick-up point of the suspension can be freely decided. It is easy to change to the best rigidity for each category by changing the number of sheets of CFRP prepreg. Because it is not bonded to the honeycomb, the rigidity is not deteriorated. (Fault) It is heavier than the honeycomb monocoque. It is Dome to manufacture the JMIA monocoque. They will promote the sales of the JMIA monocoque to a variety of single seater categories for which the CFRP monocoque is not used. Dome will return to Le Mans if their businesses succeed. |
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23 Nov 2009, 13:44 (Ref:2587799) | #30 | |
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JMIA completed the CFRP monocoque for F4.
http://www.jmia.info/news/ns091121.html Presentation material of JMIA monocoque(in Japanese) http://www.jmia.info/img/jmiauova1122.pdf JMIA say The cost of manufacturing is cheap. F3 monocoque: 3.5 million yen. FCJ(Formula challenge Japan) monocoque: 2 million yen. F4 aluminum honeycomb monocoque: 1.35 million yen. JMIA monocoque: 1.4 million yen. It is easy to judge whether it is a defect. It is excellent in durability. It is excellent in generality. The safety test in accordance with FIA/F3 regulations is scheduled to be done. It is a photograph of the wind tunnel experiment of F4. http://www.jmia.info/news/ns091121b.html Presentation material for F4 participant. http://www.jmia.info/img/f4091121.pdf Present F4 vehicle(West racing cars) http://www.west-racing.co.jp/catlog/west096.html http://www.west-racing.co.jp/west096report.html |
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2 Dec 2009, 11:34 (Ref:2592775) | #31 | |
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Up to now, 1.8-liter B18 engine of Honda had been used in F4.
However, the use of 2-liter engine is admitted in the regulation in 2010. Toda racing supplies the K20A engine of Honda. Tom 's receives the technical co-operation of Ken Matsuura racing service, and they supply 3ZR engine of Toyota. These three companies are members of JMIA. In F4 at the next season, "engine war" starts. http://www.jmia.info/journal/jounal091202.html |
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8 Dec 2009, 12:21 (Ref:2596035) | #32 | |
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JMIA made the English version pamphlet of the JMIA monocoque.
http://www.jmia.info/img/uova091208e..pdf |
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15 Jan 2010, 11:09 (Ref:2613764) | #33 | |
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JMIA announced that Tom's(designed by Mooncraft) and JIM GAINER would participate in F4 as a constructor.
http://www.jmia.info/news/ns100114.html |
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14 Feb 2010, 04:53 (Ref:2633074) | #34 | |
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Tokyo R&D launched new F4 car(RD10W).
http://ameblo.jp/yosuke-f/entry-10458317006.html |
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16 Feb 2010, 10:27 (Ref:2634276) | #35 | |
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RD10W test report on JMIA website.
http://translate.google.co.jp/transl...&sl=auto&tl=en |
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16 Feb 2010, 17:40 (Ref:2634489) | #36 | |
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I enjoy it to follow this topic but with F20 now a single seater series should it not be moved to the single seater forum?
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17 Feb 2010, 04:42 (Ref:2634784) | #37 | ||
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17 Feb 2010, 11:18 (Ref:2634903) | #38 | |
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Sorry for off topic.
Someone, please move this thread. |
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17 Feb 2010, 18:48 (Ref:2635089) | #39 | |
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