Funny that's just what proud owner Charlie Davis does, although he is more careful when crossing runways and less disposed to headlong leaps. Our FLSC Pegasus is a B model that has a carbon fiber main spar, Some will find it easier to use a different calculation. It has a claimed maximum L/D = 41. Does the extra weight provide the extra energy to offset the extra drag? I don't know of a list. Further practice would reduce the landing distance still further. the glide ratio is independent of the weight or mass of the aircraft. It can be used for spin training with tailweights added. 45 and 45 is what I was told. Cruise speed: 126 mph. I would really appreciate if you could help me out. Operating them while strapped into a parachute and with the front cockpit's five-point harness hooked requires more than a few grunts. A 1.7 NM per 1000 feet glide is an angle of 5.5 degrees, Arc-Tan (1000/ (1.7*6076)) = 5.5 degrees. THE ONLY THING WEIGHT DOES IS BRING THE PLANE DOWN THE GLIDE PATH AT A FASTER RATE. This is a SUPER CLEAN 7KCAB that has been completely rebuilt in 2017 - Has Wood Wings! Further improvements to the 7GCBC include use of the heftier front wing strut from a Decathlon, which is attached to the wing with a beefed-up end fitting. Cars only need 20-40 HP to maintain highway speeds. When imported it was registered in the USA - as an A model. $145.00/hr. The plane is now back to its trimmed AOA and the new constant descent speed is supplying the added lift, not a new AOA). The Citabria is a light single-engine, two-seat, fixed conventional gear airplane which entered production in the United States in 1964. They have effect on the speed to fly to get that best glide (longest distance). WHAT HAPPENS IF WE INCREASE THE WEIGHT THE VERY MOMENT THE GLIDE STARTS? 1974 AMERICAN CHAMPION 7-KCAB CITABRIA New Item. tan(glide angle)=alt/distance. So if I were at 10000 feet and lost all my engines, I could expect to glide about 30 miles. Older Citabria 7GCBC aircraft produced in the 1960s and 1970s had wood spars that are prone to cracking. Probably displaying my lack of understanding. This is not an insignificant difference in speed to be shed during the actual landing phase. This just doesnt seem to jive. the heavier plane will reach the ground faster. You require to fly at a higher IAS to maintain best L/D ratio therefor if you have increased your speed to maintain best L/D ratio (best glide ratio) you will remain on the same flight path as a lighter aircraft at a higher IAS and lower angle of attack. Aircraft Serial Number1335-2002. All the forces are in equilibrium just as they were at the lower weight and same AOA. https://en.wikipedia.org/wiki/Gliding_flight#Glide_ratio, Compute the distances between coordinates, Compute the time to travel between coordinates. Champion introduced the 7GCBC in 1965. Let me know what you think. Use tab to navigate through the menu items. Powerplant: 1 Lycoming AEIO-360-H1B four cylinder horizontally-opposed aircraft engine, 180 hp (130 kW) Propellers: Hartzell Propeller HC-C2YR-4CF/FC7666A-2 Propellers: 6 ft 2 in (1.88 m) diameter Performance Maximum speed: 155 mph (249 km/h, 135 kn) at sea level Cruise speed: 141 mph (227 km/h, 123 kn) Remember weight does affect stall speed. Notice, there is no weight given here. I asked Charlie if I could come back just to play. (just kidding). This particular Explorer is equipped with a radio, Mode C transponder, intercom, and even a II Morrow GPS. Login required to see more detailed info on each aircraft. The airplane is powered by a horizontally opposed, four cylinder, direct drive, normally aspirated, air cooled, carburetor equipped engine. Champion 7ECA Citabria - . Max L/D is given by an AoA therefore in the lift formula Cl needs to remain the same for both airplanes, Density is the same, and the wing surfaces are the same as well So the only component that can/need to change to create more lift to compensate for the added weight is the speed. N3822A, Glider: SchweizerSGS 2-33ATail #: The first Citabria came off the line in 1964 at Champion Aircraft in Oseola, Wisconsin, a company that was later bought by Bellanca. Probably closer than you think. American Champion President Jerry Mehlhaff is banking on the Explorer being much more than a fun machine, of course. Do it again for different airspeeds. for approved maneuvers in the acrobatic category. Instructor Davis said the aircraft requires a long, flat approach, but that was inhibited somewhat at Warrenton by trees off the approach end. hotrod180 offline. Aircraft weight, air density (e.g. This should be a indicated airspeed you should try and maintain the second your engine quits or starts sputtering. How do you determine the best engine off glide ratio in a gyro? SECOND THE SPEED VARIABLE: I know the AOA did not change. Any rule that states an airplane has to be operated within CG limitations? No one expects an air cooled 160hp with a carb. The plane must increase speed or AOA to make more lift.) This means that if you start at an altitude of 1 mile, you can glide for 60 miles. To Mark, JAN 10, 2013: A 5 deg angle (glide path) gets you 1909 feet farther while We purchased it from Doug Cline in 2019. lighter. Glide ratio: 23-1 : Max G: Tow: American Champion Citabria 7GCAA Sn#:2 Tail #: N7519F Description: The Citabria is a light single-engine, two-seat, fixed conventional gear airplane which entered production in the United States in 1964. A high performance glider has a glide ratio of 60:1 (60 miles forward to ever y1 mile of altitude lost). ? 4. The 7GCAA . The system is powered by a 60 ampere, self-exciting, engine driven alternator and a lead-acid battery. Demonstrated Crosswind Component: 17kts. Takeoff Distance Over 50-ft Obstacle: 895 ft. Posts: 9992. For example, a 50:1 glider will fly 50m for every 1m it drops. Drag is apposed by thrust. In this example, the glide ratio provided in the POH comes out . The glider is exceptionally rugged, has a low stall speed, docile stalling characteristics, is capable of a very short landing distance, and wide range of weight in each cockpit. It's based on the Champion 7-series airframe. Page 6-Engine Out Glide Distance? The Explorer likes to fly. And it means you have more vertical speed to arrest in that latter phase. For a better experience, please enable JavaScript in your browser before proceeding. A new relative wind direction from the plane falling tries to create a larger AOA under the wing. The STC covers the replacement of the original early model oleo (Non spring gear) Citabria gear legs with PA-18 style gear legs and the addition of an adjustable bungee and air shock suspension system. Im yet to see a gyro with a better G R than a rock. There is a forward component of weight (relative to Drag) that moves the aircraft forward. All bets are off when the wing stalls. 7GCAA, Citabria 150, Citabria "A" Package, Citabria Adventure, 7GCBC, Citabria 150s, Citabria "C" Package, Citabria Explorer, Learn how and when to remove this template message, "And In This Corner, The Champ: A Pilot Report on the Champion Citabria", https://en.wikipedia.org/w/index.php?title=American_Champion_Citabria&oldid=1119996904, 1960s United States civil utility aircraft, 1960s United States civil trainer aircraft, Articles needing additional references from February 2009, All articles needing additional references, Short description is different from Wikidata, Aircraft specs templates using more performance parameter, Creative Commons Attribution-ShareAlike License 3.0. Glide ratio usually varies little with vehicle load; a heavier vehicle glides faster, but nearly maintains its glide ratio. The math looks like this: 1.5 nm * 6076.12 ft = 9114.18 ft. Now that both the rise and run are in the same unit value (feet), the ratio can be calculated. It is found by multiplying the weight by the sine of the glide angle. Garmin GTX 327 transponder, Garmin GNC 300XL (GPS/COMM), Vortex Generators, and more. The Citabria designs passed through the hands of a number of companies through the 1980s, including a Champion Aircraft Company which was no relation to the Champion Aircraft of the 1960s. Or how do you (avoiding mathematics) figure it out. Solo Date: November 19, 2022. Since lift must equal weight in a steady descent, weight supported by drag assumed negligible, the aircrafts weight will determine the lift necessary. The heavier? Lift (L) is a product of half of the velocity (V) (speed) squared times wing area (S) times air density ( pronounced rho) times coefficient of lift (Cl): Since best glide occurs at an exact Cl, we know Cl is a constant. The electrical system is 12 volts, direct current, using the airframe as a negative ground. The only effect weight has is to vary the time the aircraft will glide for. Examples of how to use "glide ratio" in a sentence from the Cambridge Dictionary Labs The pilots of the Phantom, if they were to stay with the aircraft, could probably get out of the aircraft and run to the point where the 172 was going to land and have a smoke before the 172 got there! First and foremost, of course, is American Champion. The new Ceconite-covered 7GCBC has a 160-hp engine, flaps (as did the original aircraft), and longer wings with metal spars. (And in case you have forgotten where the name Citabria came from, spell the headline backward.). A little extra airspeed has minimal effect, but a little too slow is bad. The airplane is approved for day and night VFR operations when equipped in accordance with F.A.R. Due to its light weight, it climbs well, stalls benignly, will land in an incredibly short distance (due to the nose skid), and is an excellent glider for transitioning after solo and first cross country attempts. Compare. 40 or more to one for single seaters has been common for 30 years or so. Table of Contents. In 1967, Champion switched to spring steel main gear legs; by then, the Lycoming engine had become the standard. Both aircraft will cover the same distance but the lighter one will take a longer time to do so. 3. This is great!! Like the one I just got from Javier who writes asking: Two airplanes are flying at the same altitude, the same day, same conditios, except airplane A is much heavier than airplane B. lots of first timers I've taken flying have been amazed at the low HP of airplanes. The lift produced during the glide is not equal to weight, it is equal to weight times the cosine of the glide angle! Daher Kodiak 100 Specifications. 4 products. - MOUNT ENGINE SET OF 4. You know most wings will stall at 18-20 deg of inclination but how do you know the correct angle of attack for the wing on your aircraft for best glide ? Air cooled 160hp with a better experience, please enable JavaScript in your browser before.! To weight, it is equal to weight times the cosine of the glide ratio in! That has been common for 30 years or so would reduce the landing distance still further expects air. When equipped in accordance with F.A.R is approved for day and night VFR operations when equipped in accordance with.! By then, the glide is not an insignificant difference in speed to be shed during glide... Effect on the speed to arrest in that latter phase glider will fly 50m for 1m. A longer time to travel between coordinates, Compute the distances between coordinates, the. Indicated airspeed you should try and maintain the second your engine quits or sputtering. That has been completely rebuilt in 2017 - has Wood Wings 7KCAB that has common. 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