TL Aircraft Owners Association

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Para cambiar el idioma en el foro, crea una cuenta, inicia sesión y haz clic en tu nombre de usuario (a la derecha del menú). Haz clic en "Configuración de la cuenta" y luego desplázate hacia abajo para configurar tu idioma preferido.

Chcete-li změnit jazyk napříč fórem, vytvořte si účet, poté se přihlaste a klikněte na své uživatelské jméno (pravá strana nabídky). Klikněte na Nastavení účtu a poté se můžete posunout dolů a nastavit preferovaný jazyk.

Ever wonder how actual performance numbers compare to published performance numbers for aircraft?  We got together one morning at Laurens County (KLUX) airport in SC to answer this question for ourselves.  We assembled a ground crew and equipped them with radios and laser range finders and proceeded to gather data on the Stream EP917Ti with a DUC Tiger prop and the beautiful new Sirius 916iS with a factory prop.  We had  people positioned to mark both the TO and Landing locations and lasers were then shot both directions for accuracy. We executed on both runways and averaged the data, the minor HW/TW making a noticeable difference. Nothing heroic in the flying, just normal ops. These numbers are brake release to breaking ground and touchdown to stop, they are not for clearing a 50 foot obstacle and should not be as official or operational data. The flight condition details are reprinted here for convenience. A fun day playing around with the planes, thanks to all who helped!




Stream N315TL - Ground run distances for Takeoff and Landing
KLUX - grooved concrete - 698' elv. -  55 F  - 15 gal of fuel - GW 1295lbs - 160hp
Winds -  2-3 knot variable 90 degree crosswind  +/ - 4 0 degrees
TO Configuration: TO flaps, start rotation passing 55 KIAS,  airborne approx. 60 KIAS.
LAND Config: Gear Full flaps, 65KIAS short final pulling power in flare
Notes:  Recommend not using brakes until slowed considerably, tires easily lock up and skid at higher speeds, negligible difference with early braking
Data taken on both runways for accuracy and averaged


Sirius N84TL  - Ground run distances for Takeoff and Landing
KLUX - grooved concrete - 698' elv. - 55 F  - 22 gallons - TO Wt 1277lbs
Winds -  2-3 knots variable 90 degree crosswind  +/ - 4 0 degrees
TO Configuration: 1/2 flaps
LAND Config: Full flaps with braking
Notes:  Recommend not using brakes until slowed considerably, tires easily lock up and skid at higher speeds
Data taken on both runways and averaged for accuracy

When I finish my sparker, I'd love to fly over and do some data gathering comparisons.

This is interesting. I would love to have one of these for the Sparker.

Out of curiosity do you have any estimate of how much faster you are than a sparker? From the pics it looks like you flew with a sparker. Did you happen to check?

If you are needing to replace a tire or tube this is what I ended up buying, not the only solution but the one I chose.

Main Tires - Aero Classic 400-6 6 ply Classic
Main Tubes - Aero classic 123x500  6/400

Nose tire is tubeless - Aero Classic 11x4.00-5 8PR