underfire
29th Aug 2013, 22:14
Russia's Central Aerohydrodynamics Institute (TsAGI) has carried out a study into a future small business jet-type aircraft with "enhanced levels of comfort" at high subsonic speeds thanks to a specially-formulated fuselage shape designed to reduce drag.
The windtunnel research, which the agency says was at its "own instigation and not for a commercial client," tested a model of an aircraft representative of a jet weighing around 6,000kg, capable of carrying six passengers 1,730nm (3,200km) or three passengers 2,270nm. my add!
The aircraft model was tested at cruising speeds and also at high Reynolds numbers - signifying turbulent or unstable airflow - and low airspeeds, TsAGI says.
The model's main feature is that it used an area-ruled shape to help enhance comfort, TsAGI says. A straight wing would normally limit an aircraft to a speed of Mach 0.7-0.72. However, the institute's research showed its new design could reach speeds of up to M0.77 while flying to maximum range, and reach a maximum cruising speed of M0.8
http://www.flightglobal.com/Assets/GetAsset.aspx?ItemID=52278
Russia’s TsAGI studies new business jet (http://www.flightglobal.com/news/articles/russias-tsagi-studies-new-business-jet-design-389833/)
In my opinion, yet another half-assed wind tunnel test (with Reynolds references to boot!)
The windtunnel research, which the agency says was at its "own instigation and not for a commercial client," tested a model of an aircraft representative of a jet weighing around 6,000kg, capable of carrying six passengers 1,730nm (3,200km) or three passengers 2,270nm. my add!
The aircraft model was tested at cruising speeds and also at high Reynolds numbers - signifying turbulent or unstable airflow - and low airspeeds, TsAGI says.
The model's main feature is that it used an area-ruled shape to help enhance comfort, TsAGI says. A straight wing would normally limit an aircraft to a speed of Mach 0.7-0.72. However, the institute's research showed its new design could reach speeds of up to M0.77 while flying to maximum range, and reach a maximum cruising speed of M0.8
http://www.flightglobal.com/Assets/GetAsset.aspx?ItemID=52278
Russia’s TsAGI studies new business jet (http://www.flightglobal.com/news/articles/russias-tsagi-studies-new-business-jet-design-389833/)
In my opinion, yet another half-assed wind tunnel test (with Reynolds references to boot!)