Lancair Legacy - CAFE Foundation

Darrel Harris, left, and C.J.Stephens crewed the flight testing.Legacy N199L, Feb. 2002Flight/DateStart timePresalt.,ft.Densalt rangeWeight,lbCAS,mphTAS,mphRate ofclimb, fpmcommentAll data "wing cuffs on".Climbsfull power, 2665 RPM, 27", 27.8 gph, full rich#2-2/23/0217:15:3820302014.3-2521.621721521582337130K panelfull power, 2678 RPM, 27.7", 27.8 gph, full rich#2-2/23/0217:18:0920152053.7-2555.721671641692392140K panelfull power, 2692 RPM, 28.1", 28.0 gph, full rich#2-2/23/0217:20:4220302087.1-262021631781842350150K panelfull power, 2690 RPM, 27", 28.1 gph, full rich#2-2/23/0217:23:2920482039.6-2516.421581551612632135K panelfull power, 2690 RPM, 26", 26.0 gph Triaviathon#2-2/23/0217:31:0124832510.5-3532.621431581652299137K panelfull power, 2700 RPM, 27.5", 28.0 gph, full rich#3-2/24/0207:41:59905505.6-1525.122021561602546135K panelfull power, 2698 RPM, 26", 25.0 gph Triaviathon#3-2/24/0207:42:4225042677-3800.822001601682455135K panelfull power, 2677 RPM, 22", 20.7 gph, 200° rich#3-2/24/0207:45:0469508006.4-8518.921951591801618135K panelfull power, 2662 RPM, 19.1", 17.7 gph, 175° rich#3-2/24/0207:47:251032411517.8-12509.721901581901488135K panelGR = glide ratioDescentsStart timePresalt.,ft.Densalt rangeWeight,lbCAS,mphTAS,mphRate of sink,fpmcommentclosed throttle, flat pitch, 1970 RPM, 3.2", 2.4 gph#2-2/23/0216:14:2086799200-820622321381571316120K panel, GR: 10.45closed throttle, flat pitch, 1700 RPM, 4.2", 2.2 gph#2-2/23/0216:15:3671937515.4-664.222311261401253110K panelclosed throttle, flat pitch, 1720 RPM, 3.9", 2.2 gph#2-2/23/0216:21:23992910508.9-982822251211411216105K panel, GR: 10.15closed throttle, flat pitch, 1588 RPM, 4.4", 2.1 gph#2-2/23/0216:22:1589649420.3-8939.822241151321156100K panel, GR: 9.27closed throttle, flat pitch, 1450 RPM, 5.2", 2.0 gph#2-2/23/0216:23:0280918427.8-7980.52224109123135895K panelclosed throttle, flat pitch, 1345 RPM, 5.9", 1.9 gph#2-2/23/0216:23:4273177590.2-7136.12224103115108590K panel, Vx ??closed throttle, flat pitch, 1260 RPM, 5.9", 1.9 gph#2-2/23/0216:31:2289149227.9-8997.8221796110103883.5K panel, Vx ??closed throttle, flat pitch, 1180 RPM, 6.7", 1.8 gph#2-2/23/0216:31:5583228534.8-8090.1221692105108380K panelclosed throttle, flat pitch, 2074 RPM, 3.6", 2.6 gph#2-2/23/0216:33:0563546637.1-6108.722161501651599130K panel, GR: 9.0closed throttle, steep pitch, 980 RPM, 9.6", 1.9 gph#2-2/23/0217:41:2246764803.3-3912.721271581681112135K panel, GR: 13.3FLIGHT TEST DETAILS11 flights including 4 data collectionflights were made during February2002, all during day VFR conditions.A Flowscan 201A fuel flow transdu c e r was used for the gphdeterminations and was calibrated bymeasuring the weight of fuel burned oneach flight. A PropTach digital tachomete r was mounted on the top of theinstrument panel. Performance dataflights were conducted with pilot andflight engineer aboard. Flying qualitiesw e re evaluated using an analog G meterand Brooklyn Tool & Machine Co., Inc.NJ hand-held stick force gauge.Cruise flight data were obtained withthe wingtip CAFE Barograph (#3)mounted on a wing cuff with a dummyb a rograph and cuff mounted on the oppositewing. These were correlated withthe panel airpseed indicator to pro d u c ethe airspeed correction table shownherein.Cowl exit temp (C.X.T.) is a functionof the OAT & CHT and serves as a keyn u m b e r f o r calculating the cooling systemperformance.Cooling ram re c o v e ry was measure din both climb and cruise.The Legacy flaps are very eff e c t i v e .They reduce the stall speed from 83.4smph clean at 2218 lb to 65.6 smph withfull flaps and gear up at 2128 lb. Computationshows this to re p resent anastounding increase in CLmax due toflap deployment from 1.51 clean to 2.54