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FlightGear Newsletter March 2011: Difference between revisions
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→Hawker Tempest
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==== Hawker Tempest ==== | ==== Hawker Tempest ==== | ||
[[File:Fgfs-screen-221.jpg|thumb|Showing the exterior of the BK117.]] | [[File:Fgfs-screen-221.jpg|thumb|Showing the exterior of the BK117.]] | ||
Work on the Hawker Teampest continues but painfully slowly | Work on the Hawker Teampest continues but painfully slowly: | ||
Flight Dynamic Model. There is contemporary performance data [http://www.wwiiaircraftperformance.org/tempest/tempest-V.html] and detailed dimensions available, but no aerodynamic data. This is what YASim was intended for. However, it turns out that YASim does not like high powered high performance propellor aircraft. When fed realistice data YASim produces a near supersonic solution. However,testing and tuning over 2 weeks has produced an output which closely matches the published data, even if the input data look somewhat bizarre. The Tempest could approach the compressibilty region in a dive. Its operating handbook specifically limited its | Flight Dynamic Model. There is contemporary performance data [http://www.wwiiaircraftperformance.org/tempest/tempest-V.html] and detailed dimensions available, but no aerodynamic data. This is what YASim was intended for. However, it turns out that YASim does not like high powered, high performance propellor aircraft. When fed realistice data YASim produces a near supersonic solution. However, testing and tuning over 2 weeks has produced an output which closely matches the published data, even if the input data look somewhat bizarre. The Tempest could approach the compressibilty region in a dive. Its operating handbook specifically limited its performance envelope to avoid this, but it might be a useful future extension to add a bit of transonic drag. | ||
Texture. Nearly finished. Tests have been carried out with | Texture. Nearly finished, but made more difficult by the decision to put all external textures on one 1024 x 1024 sheet. This has the advantage of making a relection map easier to produce, but aligning all the camoflage joins is ... a nightmare. Tests have been carried out with .dds, .png, and .rgb files: there seems little to chose between them in appearance terms. An executive decision-making aid will be used later (AKA toss of a coin). | ||
3d Cockpit. Largely a rework of the Hawker Hurricane cockpit (as it was in real life). About 50% complete. | |||
Overall, we are looking at three months more work. | |||
=== Updated aircraft === | === Updated aircraft === | ||