The only effect weight has is to vary the time the aircraft will glide for. Is posible descent the same distance from the same altitude and land at the same point with diferent angles? i dont see it. An aircraft has a single best glide speed for a given configuration. Jim Last edited: Jul 4, 2007 B birdy Active Member Joined Mar 19, 2004 Messages 7,063 Location Alice Springs-central Oz. I have a restricted category for my 7gcbc ('69 w/ wood wings) for crop dusting, it states 2300lbs gross. View photos, ownership, registration history, and more. The major differences between these two models are that the 7GCBC has a wingspan of 34.5 feet (10.5m), 1-foot (0.30m) longer than the 7ECA and 7GCAA, and carries wing flaps. While the Citabria designs remain successful, and the introduction of the 7KCAB variant of the Citabria had added limited inverted flight capability, the Citabrias are not capable of "outside" maneuvers, those requiring significant negative-g loads. I guess for the glide ratio, Ill just have to go experiment to see what that is. Empty Weight: 1200 lbs. Aircraft Serial Number1335-2002. 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. The angle to the left wing from the pilot eyes is around 5.4 degrees. Glide ratio measures the performance of an aircraft's glide; many modern gliders have a glide ratio better than 60:1. . . It may not display this or other websites correctly. Designed for flight training, utility and personal use, it is capable of sustaining aerobatic stresses from +5g to -2 g. Its name spelled backwards, "airbatic", reflects this. ? An airfoil glides at a maximum lift over drag coefficient, which occurs at a precise Angle of Attack. 7ECA, Citabria Standard, Citabria Aurora. PERFORMANCE Acrobatic Limit Loading: +5, -2g's Takeoff Distance, Ground Roll: 430 ft. Takeoff Distance Over 50-ft Obstacle: 895 ft. Ours had all spraying equipment removed. 13:1 with the prop stalled, MAYBE. You would have to have a different attitude (sight picture) to achieve this. Locate a Dealer. This speed is important as it represents the bottom of the drag curve. Bellanca introduced two designs with close connections to the Citabria: The 8KCAB Decathlon and the 8GCBC Scout. Rolls are okay, though and loops. hotrod180 offline. Wikipedia (https://en.wikipedia.org/wiki/Gliding_flight#Glide_ratio). It was substantially similar to the 7GCAA of the same year, with wood-spar wings and spring steel main gear legs. Description: The Schweizer SGS 2-33 is an American two-seat, high-wing, strut-braced, training glider that was built by Schweizer Aircraft of Elmira, New York until the late 1980s, the 2-33 was the main training glider used in North America. It is our mission to be the go to leaders in the aviation industry. 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. SECOND THE SPEED VARIABLE: I know the AOA did not change. If I were to draw the aircraft in gliding flight, we would see that the tan of my glide angle is altitude/distance covered over the ground. The math looks like this: 9114.18 ft /1000 ft = 9.11418. Maximum speed: 162 mph. 4. With only half tanks, we were still right at the new, higher gross weight of 1,800 pounds. The glide ratio varies with air speed, but there is a maximum value which is frequently quoted. But I think I found your answer from: A lot of misinformation going on here. The main gear legs of most Decathlons are made of spring steel, though American Champion began to use aluminum gear legs in 2004. FIRST THE WEIGHT VARIABLE: I know the disruption of equilibrium due to the added weight was in effect neutralized, cancelled out by the lift forces created by the speed increase. The model 7ECA Citabria entered production at Champion in 1964. Garmin GTX 327 transponder, Garmin GNC 300XL (GPS/COMM), Vortex Generators, and more. Production at Bellanca ended in 1980 and the company's assets were liquidated in 1982. (Use your L/D max speed). 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. Variations in aircraft weight do not affect the glide angle . JetPhotos.com is the biggest database of aviation photographs with over 5 million screened photos online! Overall, the aircraft delivers what it promises: fun. Try this Aviation Glide Calculator. Obstacle: 850 ft. VNO(Maximum Structural Cruising): 120mph. Vy in your airplane is 69 mph. The cruising speed of the Citabria is sedate: 100 to 110 knots or so, depending on model, and some owners use them for travel. The 7GCBA (ag spray plane) is certified to 2400lbs (I admit I know nothing about it's structure). Instead of best glide SPEED, memorize best glide ATTITUDE. 2022 Model SOLD OUT Lycoming O-320-B2B, 160 HP Engine Sensenich 74DM6S8-1-56 73" Aluminum Fixed Pitch Propeller. The major improvement in Bellanca's introduction of the Super Decathlon was the change of engine to the Lycoming AEIO-360-H1A or H1B, both of 180 horsepower (130kW), which was accompanied by a selection of constant speed propellers. Description: The ASK 21 is constructed of Fibreglas two-seat mid-wing glider aircraft with a T-tail. AOPA Members DO more LEARN more SAVE more - Get MORE out of being a pilot -, 2023 Aircraft Owners and Pilots Association, Avg. The C172S will descend at about 760 feet per minute. But do not ever get an Aeronca or a J3 near a scale - they gain a hundred pounds just like that. Cars only need 20-40 HP to maintain highway speeds. The following formula is used: = S / H where: = Glide Ratio S = distance of forward travel This is not an insignificant difference in speed to be shed during the actual landing phase. A few seconds of rolling at full power, a gentle forward pressure to raise the tail, a gentle pull, and we were off in what appeared to be less than 500 feet. Description: The Citabria is a light single-engine, two-seat, fixed conventional gear airplane which entered production in the United States in 1964. Introduced in 1964, the 7ECA was the first version of the design and utilized the Continental O-200-A engine of 100 horsepower (75 kW). How do you determine the best engine off glide ratio in a gyro? With no other changes the plane starts too fall. The RAF 2000 and the SH seem to fall at about 4 to 1 but both the blade loading and disc loading on those aircraft is very high. lots of first timers I've taken flying have been amazed at the low HP of airplanes. One of these aircraft is displayed at the Rahmi M Ko Museum in Istanbul. How would you go about finding it yourself? American Champion's 7GCAA, reintroduced in 1997 as the Citabria "Adventure," is similar to earlier versions, with the exception of the metal-spar wings and the use of the Lycoming O-320-B2B engine of 160 horsepower (120kW); the most recent significant design change has been the switch to aluminum main gear legs in 2004. We use the aircraft for Spin training, cross country field selection, tow pilot checkouts, and as a backup towplane for our lighter gliders. Minimum sink is not usually published (except for gliders) but it's easy enough to figure out with the VSI, and it is always slower than best glide ratio. The landing gear of the Decathlon is in a conventional arrangement. 45 and 45 is what I was told. . 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) Introduced in 1964, the 7ECA was the first version of the design and utilized the Continental O-200-A engine of 100 horsepower (75kW). As far as flight path is concerned its now like the added weight never existed. Champion 7ECA Citabria - 1 . Thanks, hi i just wanted to ask that while practicing a flameout landing.. i m maintaining the best glide speed that is 125 KIAS for my aircraft , i should get 1000 ft/min ROD but i am getting 800 ft/min so what should i do. You may have to depart from your standard because of traffic, airport rules or other things, but you should return to idle approaches as your "default" technique. The most noticeable external changes to the design are the Citabria's squared-off rudder surface, wingtips, and rear windows. Hang gliders typically have a glide ratio of between 15:1 and 20:1 while sailplanes have a glide ratio of around 38:1 to 52:1. 1. (Probably similar to the "pregnant brick" mentioned earlier.). The engine is a Lycoming Model O-235-K2C and is rated at 118 horsepower. It uses the CONDOR Soaring Software Program and is the same simulator used at the USAF Academy. Like the Champ, the Citabria features tandem seating. I believe the 172 is 9:1 and the 182 is 10:1. Weight opposes lift, it does not oppose drag. Cruise Speed/Endurance with45 MinReserve @ 75% Power: 127mph/ 2.8 hrs, Fuel Consumption(55% to 75% Power, per Lycoming Data): 7.3 to 10gph. A modern German counterpart about 33:1. More Info. To Mark, JAN 10, 2013: Maule Air Texas Inc. OR USA (214) 384-1858 . whether the flaps are deployed, the landing gear is down etc. See the airplanes P.O.H. Why? The Glide Ratio is the ratio of distance forward to distance downwards when a glider is flown at a constant speed in still air. THE ONLY CHANGE THAT OCCURS IS IT WILL GET THERE QUICKER. 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 weight is no longer a factor in this scenario. In GA aircraft, the speed is given in reference to the max weight. Nationality and Registration MarksZK-CIT. The 7GCAA was basically the same as the 7ECA, but with a 150-hp engine. The wing, downsized from a Champion Scout, was made more rigid intentionally to improve lift and roll rate. They also now manufacture the Citabria Adventure and the Citabria Explorer. I am not sure this is correct re: glide angle which is not the same as glide ratio. . $85,500 Reg# N8552V TT: 2408; Performance Specs. CITABRIA EXPLORER 7GCBC. Demonstrated Crosswind Component: 17kts. FWIW in the "before landing" operating checklist, it mentions "glide at 80-90 mph with flaps up". 2. 8-10:1. best glide speed is really high though thanks to much higher wing loading. Gliding Distance is given by. What does glide ratio mean? In that period, only one Citabria model was builta 7GCBC marketed as "Citabria 150S." HeyI describe the glide ratio of a gyrocopter as the trajectory a possum travels as he leaps off a hayloft. Bill Piper really needed to have someone shot over that! We use cookies to help you get the best experience when using our website. BUT ONLY IF THE PLANE WAS DESIGNED WITH WINGS TO SUPPORT SUCH A LOAD. Aircraft weight, air density (e.g. Vy in your airplane is 69 mph. when the weight increase, the glide ratio remains the same but the speed increases, i.e. Recommended Engine TBO: 2000 hours. They also are are not equal if there is horizontal or vertical wind. WHAT WILL THESE CHANGES DO TO OUR TOUCHDOWN POINT? The plane must increase speed or AOA to make more lift.) Now that I think of it, I could carry an extra 5,000 lbs. All bets are off when the wing stalls. If everyone landed their gyros the way gyros should be landed, ie; without power, from any alt, then the glide ratio would be second nature. All you have to know beforehand is your glide ratio (say 8:1) and your indicated airspeed. The pilot suffered a catastrophic engine failure (cylinder separation) in a Cessna 205. Description: The Centrair Pegasus 101 is a single-seat, Standard Class, retractable wheel, competition sailplane, developed in France using a fuselage based on the ASW-19 with the wing profile sections being an improved new design. Airplanes fly on excess power, not grace, not engineering. The 2-33 first flew in 1965 and production was started in 1967. (You didn't ask, but minimum sink is usually close to Vx, although in most airplanes minimum sink is easy because you just dial in full nose up trim and you're pretty much there.). Login required to see more detailed info on each aircraft. Citabria 7ECA. Description: Our Club purchased this glider simulator in 2019 for our students from Russell Holtz. The real-world measurements I've done with our 182 resulted in a 7.04:1 glide ratio. Do you have the glide ratio in your book? tan -1 (1/14) or tan -1 (0.714) or 4.086 degrees. The Micro Citabria box - look on the end panel to see what color plane is inside. gyro's don't glide far. Ceiling: 17,000. And if you are advocating that you must glide faster the heavier you are then how would you not come up short. 14:1 means 14 km of distance per 1 km of altitude. Glide ratio is the distance a glider (aircraft without an engine or the engine switched off) covers for each unit of altitude lost while descending - e.g. Fuel quantity is registered by two direct reading float type gauges, one for each tank. C) remain the same The Decathlon traces its lineage back to the Aeronca Champ, by way of the Citabria. For airplanes with the same aerodynamic characteristics, no wind, starting at the same altitude, and both of them flying at their corresponding speed to achieve max L/D. Cruise speed: 126 mph. Champion switched to spring steel main gear legs in 1967. The Citabria, great-great-great-grandchild of the Aeronca 7AC Champ, is a fly-for-fun airplane. Best angle is listed as 70. AN6-25 BOLT 1-2550 BUSHING AN310-6 NUT AN945-6P WASHER. So Joe, Jim and Paul are correct but they have not told us how they determine Funny that's just what proud owner Charlie Davis does, although he is more careful when crossing runways and less disposed to headlong leaps. A) decrease By 1995, American Champion Aircraft Corporation expanded the Citabria line of aircraft with the introduction of the Citabria Aurora. The plane is now EXACTLY as buoyant as it was before. Will both airplanes arrive at the same point? In comparison, a Boeing 747 has a 15:1 glide ratio. A little extra airspeed has minimal effect, but a little too slow is bad. Come on Paul. or Signup, You are here: Home Flight Instructor Blog Effect of Weight on Glide Ratio. I do engine off landing all the time.. What else should I plan for, in checking this? YOU GET THERE QUICKER. The wood winged 7GCBC weight go up to 1800lbs on edo 2000 floats. The glide ratio is based only on the relationship of the aerodynamic forces acting on the aircraft. The 180-hp Decathlon, already in production at American Champion, is the company's biggest seller accounting for 16 of the 18 sales made so far this year (see " The New Champion," October 1991 Pilot). 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I could carry an extra 5,000 lbs not sure this is correct re: glide angle which is quoted... The new, higher gross weight of 1,800 pounds Reg # N8552V TT: 2408 Performance. Used at the new, higher gross weight of 1,800 pounds: Maule air Texas or...