J-10 Thread III (Closed to posting)

[Deino]

Maybe the first J-10 for the August 1. demo-team ... seems as if the gun was faired over and a smoke-generator added (??)

Deino

 

[Londo Molari]

Not really, delta wings will have higher takeoff and landing speed, a very large pay load maybe dangerous during takeoff and landing.

J-10's delta wing has a lot more surface area than the F-16's wings and produces a lot more lift and has better wing loading. It can definitely carry more payload.

 

[plawolf]

The limit may be down to the pylons. The later block F16s have been beefed up considerably, at the cost of some agility, to carry greater warloads. The J10's focus has always been air combat. So while the airframe may be able to generate enough lift to loft far higher loads, the airframe itself may not be designed to be strong enough to carry that much ordinance in preference for better handling.

 

[duskylim]

Dear Sirs:

Wing area is not as important as wing geometry in creating lift.

An aircraft with high aspect area wings (that is, long and thin, like a glider for instance) will have much more lift (and less drag) than one with delta wings of the same surface area.

Those same delta wings will also experience more drag in the low-to-medium subsonic speed range.

However things change dramatically in the high-subsonic, transonic and supersonic speed ranges - here is where the swept and delta wings really come into their own.

The sweep (and its design cousin the delta) are attempts to reduce the effects of compressibility and shock waves which tend to break the wing.

They also induce beneficial vortices that help generate lift at high angles of attack.

The swept wings of the F-16 (which could also be viewed as a severely-clipped delta) probably generate more lift per unit area than the more conventional inverted-gull wing deltas on the J-10.

That being said, the short take-off runs and steep climbs performed by the J-10, (albeit in a 'light' condition for the airshow) were done with a minimum of control surface movement or deflection, clearly demonstrating the airframes excellent aerodynamic properties - this aircraft is a true interceptor.

 

[latenlazy]

Dear Sirs:

Wing area is not as important as wing geometry in creating lift.

An aircraft with high aspect area wings (that is, long and thin, like a glider for instance) will have much more lift (and less drag) than one with delta wings of the same surface area.

Those same delta wings will also experience more drag in the low-to-medium subsonic speed range.

However things change dramatically in the high-subsonic, transonic and supersonic speed ranges - here is where the swept and delta wings really come into their own.

The sweep (and its design cousin the delta) are attempts to reduce the effects of compressibility and shock waves which tend to break the wing.

They also induce beneficial vortices that help generate lift at high angles of attack.

The swept wings of the F-16 (which could also be viewed as a severely-clipped delta) probably generate more lift per unit area than the more conventional inverted-gull wing deltas on the J-10.

That being said, the short take-off runs and steep climbs performed by the J-10, (albeit in a 'light' condition for the airshow) were done with a minimum of control surface movement or deflection, clearly demonstrating the airframes excellent aerodynamic properties - this aircraft is a true interceptor.

Keep in mind though, the J-10 has canards.

 

[Quickie]

'Keep in mind though, the J-10 has canards.'

The J-10's canards have flat surfaces instead of an aerofoil shape, and therefore do not contribute to lift. It acts like an elevater.

Lift don't contribute directly to the short take off and steep climb of the J-10. The JH-7 is built to have more lift for higher payload, but it can't possibly do the kind of steep climb similar to that of the J-10, even if all other factors, like engine thrust or weight, are considered equal.

 

[Totoro]

Completely flat wings can generate lift. Acrobatic aircraft (red bull air race) basically have those and they still generate lift.

 

[maxx]

Completely flat wings can generate lift.

Depends on the angle of attack and air flow direction, yes. But strictly speaking, no. There needs to be a pressure difference on the wing to generate lift, and flat wings don't provide this.

Acrobatic aircraft (red bull air race) basically have those and they still generate lift.

That's not true. I imagine its the opposite considering recovery from stalling and low speed maneuverability are their top priorities.

 

[Quickie]

Completely flat wings can generate lift. Acrobatic aircraft (red bull air race) basically have those and they still generate lift.

The wings may look flat from certain angles but it's not actually flat.

Air deflection against a flat surface (or any kind of surface) may provide lift in certain instances but obviously that's not aerodynamic lift.

 

[A.Man]

Its Official: The August 1st Team Will Replace J-7GB's With J-10's After Oct. 1.


空军“八一”飞行表演队队长楼国强日前透露说,“完成阅兵任务后，表演队将改装国产最新的歼-10战斗机，空军的飞行表演水平将实现新的飞跃。
　　中新社报道，“八一”飞行表演队素有“空中仪仗队”“蓝天舞者”的美誉，组建于1962年，主要任务是对外迎宾和礼仪特技表演飞行。在国庆阅兵中，表演队的8架歼-7GB飞机将作为空中受阅领队机梯队的护卫机，伴随预警机飞过天安门，并在蓝天上拉出8道绚丽的彩烟。

　　“组建几十年，表演队已经进行了多次改装。”楼国强说，从歼-5、歼-6、歼教-5、歼-7EB到2005年改装歼-7GB，从亚音速飞机到超音速飞机，随着飞机性能的更新换代，飞行员们以超人的胆略、精湛的技艺创造了世界一流的飞行表演水平。

　　国庆阅兵也许是歼-7GB在表演队中的最后一次亮相。国庆后，“八一”飞行表演队将整体换装由中国自主研发设计的最新一代歼-10战斗机。“‘八一’飞行表演队要驾驶我国自主研制最新型的、最能体现我空军实力的、与大国地位相称的表演机，歼-10是最好的选择。”楼国强说。

　　从二代机歼-7GB到三代机歼-10，是机型的跨越，也意味着飞行技艺、表演水平的跨越。“把三代机的性能发挥到极限，创造更加完美的表演编排，不久的将来，我们将为全国观众呈上崭新的‘蓝天视觉盛宴’。”楼国强说。