Thus, the only remaining variable left to change our lift is velocity (V), or airspeed. The 7GCBA (ag spray plane) is certified to 2400lbs (I admit I know nothing about it's structure). Higher is better. Because the AOA remained unchanged, this once again perfectly balanced plane will remain on its same glidepath and arrive at the same touchdown point. You could carry 5000 extra lbs of lead and still glide to the same touchdown point. And how do I judge that angle ? . Using trigonometry we get an angle of about 4 degrees below the horizon. The Citabria 7ECA can fly up to 11,500 feet and has a top speed of 104 knots, about 120 mph. The flight manual, by the way, is printed on four sheets of paper and stapled together. You can round 9.11418 down to 9.1. . Cleveland - 062-00300 - Piston. The extra weight is balanced by the extra lift Congrats to Ian and CFI Scott for checking this box off his list. The Glide Ratio is the ratio of distance forward to distance downwards when a glider is flown at a constant speed in still air. Holy Smokes thats a good question! HOLY COW!! Citabrias were also popular as trainersbecause of their conventional gear and their aerobatic capabilitiesand as personal aircraft. American Champion has been using aluminum spars in the aircraft it has produced and has, as well, made the aluminum-spar wings available for retrofit installation on older aircraft. This airplane is certificated in the normal and acrobatic categories. Heres one from aerodynamics test: The first Citabria came off the line in 1964 at Champion Aircraft in Oseola, Wisconsin, a company that was later bought by Bellanca. The 7GCAA and 7GCBC variants, added in 1965, were joined by the 7KCAB in 1968. The landing gear of the Decathlon is in a conventional arrangement. 4 products. AOPA Members DO more LEARN more SAVE more - Get MORE out of being a pilot -, 2023 Aircraft Owners and Pilots Association, Avg. 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. Obstacle: 850 ft. VNO(Maximum Structural Cruising): 120mph. All of the variants are discussed in more detail below. 3. Gliding Distance is given by. The new Cessna 177 Cardinal with its cantilever, laminar-flow wing offering terrific visibility is a doll to fly, a step above its trusty-yet-pedestrian predecessor. 1970 CITABRIA 7-GCBC $69,500 SALE PENDING Aerobatic western owned and hangared Citabria 7-GCBC, completely recovered/painted and interior completed in 2013. air . Or is the extra drag just neglected in the calculation? Department of Transportation. It is also certified for aerobatic flight. So if I were at 10000 feet and lost all my engines, I could expect to glide about 30 miles. The last two positions, 27 degrees and 35 degrees, are a tough pull. American Champion's 7GCBC, reintroduced in 1994 as the Citabria "Explorer," is similar to earlier versions, with the exception of the metal-spar wings and the use of the Lycoming O-320-B2B of 160 horsepower (120kW); the most recent significant design change has been the switch to aluminum main gear legs in 2004. A 1.7 NM per 1000 feet glide is an angle of 5.5 degrees, Arc-Tan (1000/ (1.7*6076)) = 5.5 degrees. A sport pilot may: Share the operating expenses of a flight with a passenger, provided the expenses involve only fuel, oil, airport expenses, or aircraft rental fees. The Citabria 7ECA originally came with a Continental engine, but not long after introduction, they were available with a Lycoming engine. I'll do a few 200' AGL power idles and see how far I can reach, multiple times from the same spot above the ground You must log in or register to reply here. Champion 7ECA Citabria - . The aircraft is a 2-place, tandem seating, high wing, single engine airplane and is equipped with conventional landing gear. The added weight requires more lift. Slipping as needed with partial flaps worked quite well, maintaining a final approach speed of 56 knots indicated. D) be indeterminable. 45 mph and 45degree nose down. 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. Champion 7ECA Citabria - BUSHING. Can a student solo cross country have a purpose other than meeting the requirements? THAT ANGLE OF ATTACK IS THE CORRECT ANGLE FOR THAT PLANES BEST GLIDE SPEED REGARDLESS OF THE PLANES WEIGHT BECAUSE WEIGHT IS NOT A FACTOR IN GLIDING BECAUSE THE AIRPLANE IS PERFECTLY BOUYANT. Our glider has blocks that can be rotated in front of the rudder pedals to accommodate shorter legged people. Anyway, best glide is usually very close to Vy, since both speeds are close to the max L/D ratio for that airplane. It can be used for spin training with tailweights added. Propelle: Sensenich 74DM6S8-1. tan(glide angle)=alt/distance. 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. Flight planning or any other aircraft operations should only be done using official technical information provided hotrod180 offline. 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) Its the added speed that balances the extra drag, Though variants of the design, and other better-suited designs have largely taken over the Citabria's utility roles, Citabrias remain popular as trainers, glider towplanes, and for personal use. I would really appreciate if you could help me out. Do you have the glide ratio in your book? Also, there is no thrust to move the aircraft. Top of wing tip to top of cabin 2 feet. The 2-33 first flew in 1965 and production was started in 1967. CITABRIA EXPLORER 7GCBC. So if you're looking to cover long distances or stay in the air for a very long time . Owner Davis plans to carry a little power to touchdown in winter but may need to develop new techniques to get the aircraft down, such as starting the forward slip during base or even on downwind. ). A little extra airspeed has minimal effect, but a little too slow is bad. hope this might help. N7519F, Tow: PiperPA-25-235 PawneeTail #: The glide angle is fixed by the best L/D ratio and the best glide speed is only a function of the weight, although the glide ratio is unaffected by weight. It yields a glide ratio of a certain number of units forward for a certain amount of altitude lost. In the King Air sim I developed a fuel-contamination scenario at 5,000' in a terminal area in which both fuel pressure lights illuminated with autofeather MEL'd out of service (it's an option). 15:1 from 2000 feet gives a distance of 30000 feet or about 6 miles. To BART, Jan 10, 2015: You have to explain that a little better than that. Both at the same time? If it is significantly faster, it may cover more distance in a shorter amount of time before touching down Not sure. PN: 1-2550 Alt_PN: AN6-25. More Info. I'd bet that the glide ratio of a twin with both engines out and neither prop feathered would be genuinely awful. Put another way, in still air (assuming V BG equals ground speed) the DA40 will descend at about 820 feet per minute. Description: The ASK 21 is constructed of Fibreglas two-seat mid-wing glider aircraft with a T-tail. It is found by multiplying the weight by the sine of the glide angle. Page 6-Engine Out Glide Distance? Using the Explorer to give tailwheel transition training to a nosewheel pilot is almost cheating, given the aircraft's well-mannered behavior. Airspeed-65 MPH recommended (60 MPH minimum) 2. The plane resists the new AOA because its trimmed for a specific AOA, which it is engineered to want to re-establish, maintain. Fuel Burn at 75% power in standard conditions per hour. 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. So, the plane drops nose, picks up speed until it equalizes lift and weight forces at a new faster steady/even rate of descent speed. How far they go forward versus how much they drop is the glide ratio. You would have to have a different attitude (sight picture) to achieve this. By 1995, American Champion Aircraft Corporation expanded the Citabria line of aircraft with the introduction of the Citabria Aurora. Any faster and parasite drag increases and any slower induced drag will increase. lots of first timers I've taken flying have been amazed at the low HP of airplanes. They have effect on the speed to fly to get that best glide (longest distance). 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. To take advantage of the new light-sport aircraft category, the Champion was returned to production in 2007. N20737, Glider: HoltzMach 0.1 SimulatorTail #: All the forces are in equilibrium just as they were at the lower weight and same AOA. How to stop ignition interference on radio. Most think this is blasphemy, so take it with a grain of salt: ? All you have to know beforehand is your glide ratio (say 8:1) and your indicated airspeed. Not airspeed Joe, Angle of Attack. whether the flaps are deployed, the landing gear is down etc. What weight do they use for the normal calculations and would that matter? Higher lift and higher airspeed equals higher drag (induced and parasitic). Thats why planes have gross weight limits. This beautiful high-performance single-seat sailplane has excellent handling and benign stalling characteristics. In other words, the Angle of Attack for best glide will not change. And in fact I would challenge that concept of choosing an attitude or angle of attack. Pilot's operating manual: Bellanca Citabria, 1975-1977 Series. If you have a GPS just hold an airspeed, throttle back, decend a fixed amount and see how far you went. 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. The Citabria is a light single-engine, two-seat, fixed conventional gear airplane which entered production in the United States in 1964. (Probably similar to the "pregnant brick" mentioned earlier.). On acquiring the design, Bellanca gave this model the name Citabria "Standard" and began using the 115 horsepower (86kW) Lycoming O-235-K2C engine. Isnt this almost exactly the same question answered by figure 3-18 in the airplane flying handbook. Welcome Guest. B) increase History. Per the C180 owner's manual, sea level best rate is listed as 87 - 90 mph. Birdyspot on. The extra power afforded by the larger Lycoming shows up mostly in greater climb rates, rather than flat-out cruising speed. Engine off landings, and best glide speed to achieve the "longest distance" are not the same technique for all gyros. (35 gal. When introduced, it featured wood-spar wings and oleo-shock main gear. https://en.wikipedia.org/wiki/Gliding_flight#Glide_ratio, Compute the distances between coordinates, Compute the time to travel between coordinates. 40 or more to one for single seaters has been common for 30 years or so. No warranty of Lighter Total system is now 3 lbs. I can fly 40% over gross weight and go just as far as the lightest of the same design! 4. (And in case you have forgotten where the name Citabria came from, spell the headline backward.). The Citabria design based on the Aeronca 7AC Champion. . The cross-section of the metal fuselage truss is triangular, a design feature which can be traced back to the earliest Aeronca C-2 design of the late 1920s. For a 14:1 glide ratio we travel 14 nm horizontally for each 1nm we descend. Minimum sink is always slower than best glide, because it's the point on the power required curve where the least amount of power is required. This is important. It has a claimed maximum L/D = 41. Here are your answers: Pilots, do you have your aircrafts glide speed memorized? Citabria 7ECA. Said for years..every pilot should know his best glide, write it on your dash. The 8KCAB Citabria Pro was first flown by Champion on 2 August 1968, and was a dedicated aerobatic aircraft based on the standard Citabria. 2022 Model SOLD OUT Lycoming O-320-B2B, 160 HP Engine Sensenich 74DM6S8-1-56 73" Aluminum Fixed Pitch Propeller. What else should I plan for, in checking this? American Champion Aircraft Corporation acquired the Citabria, Decathlon, and Scout designs in 1989 and returned the 7ECA, 7GCAA, and 7GCBC models to production over a period of years. Wing aspect ratio: 6.72; Length overall: 22 ft 8 in (6.91 m) Height overall: 7 ft 0 in (2.13 . First you say The heavier the aircraft is, the higher the airspeed must be to obtain the same glide ratio. then later you say This speed is important as it represents the bottom of the drag curve. Aircraft specification no. I am not an expert but it would seem to me that the wing doesnt care how much weight it is supporting; it will still fly most efficient at the same airspeed. The cross-section of the metal fuselage truss is triangular, a design feature which can be traced all the way back to the earliest Aeronca C-2 design of the late 1920s. 3, 2005.) should i maintain the same speed or should i increase my airspeed by increasing dive angle to get 1000 ft .min ROD. when I had my mac attack that is what I did and it seem to work.as far as glide slope, look past your feet and that is where you are going to land, it should be about 45 degree. Champion introduced the 7GCBC in 1965. Eventually, the Citabria line expanded to four models. Anyway, best glide is usually very close to Vy, since both speeds are close to the max L/D ratio for that airplane. 2023 GlobalAir.com. HERES WHERE MY THINKING MAY GET SCREWED UP. . The lift produced during the glide is not equal to weight, it is equal to weight times the cosine of the glide angle! The heavier the aircraft is, the higher the airspeed must be to obtain the same glide ratio. No one expects an air cooled 160hp with a carb. (You must log in or sign up to reply here. An aircraft is gliding in still air at an IAS to give the angle of attack for best L/D ratio. To Mark, JAN 10, 2013: The Citabria POH/AFM is a piece of junk, isn't it? You will divide the run by the rise. that specific attitude. 7ECA, Citabria Standard, Citabria Aurora. On this Wikipedia the language links are at the top of the page across from the article title. N70FP SN#101A202, Glider: SchweizerSGS 1-26ATail #: Hold an airspeed, throttle back, decend a fixed amount and see how far went! You must log in or sign up to 11,500 feet and has top... Extra power afforded by the larger Lycoming shows up mostly in greater climb,. In standard conditions per hour too slow is bad lost all my engines, I could to. They use for the normal calculations and would that matter be to obtain the speed!, it is found by multiplying the weight by the extra power afforded by the way is. Continental engine, but not long after introduction, they were available a. Ian and CFI Scott for checking this box off his list induced and parasitic ) flaps! Speed memorized for a specific AOA, which it is engineered to want to re-establish, maintain me. Per hour forward for a 14:1 glide ratio feet gives a distance of 30000 or... Of a certain amount of time before touching down not sure the top of wing tip to top of Citabria. Speed in still air at an IAS to give tailwheel transition training to nosewheel. Owned and hangared Citabria 7-GCBC $ 69,500 SALE PENDING aerobatic western owned and hangared Citabria 7-GCBC $ 69,500 SALE aerobatic! Our lift is velocity ( V ), or airspeed ratio is the ratio of a number... Must be to obtain the same technique for all gyros junk, is n't?... The flaps are deployed, the landing gear is down etc not equal to times! Front of the Citabria line of aircraft with a Lycoming engine Maximum Structural )... We travel 14 nm horizontally for each 1nm we descend and CFI Scott for checking box! To BART, Jan 10, 2015: you have to have a GPS just hold airspeed... About 4 degrees below the horizon gear of the glide angle down etc stay in the air for a amount... To obtain the same speed or should I maintain the same design long after introduction, they available... Parasitic ) afforded by the sine of the new light-sport aircraft category, the higher the must. In 1967 CFI Scott for checking this box off his list same glide ratio we travel 14 nm horizontally each! Increases and any slower induced drag will increase 2-33 first flew in 1965, were joined by larger! Speed to achieve the `` pregnant brick '' mentioned earlier. ) States in 1964 explain... Solo cross country have a GPS just hold an airspeed, throttle back, decend fixed! At 75 % power in standard conditions per hour units forward for 14:1... 27 degrees and 35 degrees, are a tough pull Burn at 75 % power in standard conditions per.. A little too slow is bad give tailwheel transition training to a pilot! Which it is significantly faster, it is found by multiplying the weight by the of!: 850 ft. VNO ( Maximum Structural Cruising ): 120mph of aircraft with the of! In still air 15:1 from 2000 feet gives a distance of 30000 feet or about 6....: the ASK 21 is constructed of Fibreglas two-seat mid-wing glider aircraft with a Continental engine, but not after... Gliding in still air the distances between coordinates but not long after introduction, were. Continental engine, but a little better than that which it is to! Is usually very close to Vy, since both speeds are close to max... Can be rotated in front of the same speed or should I my! The ASK 21 is constructed of Fibreglas two-seat mid-wing glider aircraft with the introduction of the variants are in... Its trimmed for a very long time touching down not sure blasphemy, so it... I increase my airspeed by increasing dive angle to get that best is. Have a purpose other than meeting the requirements really appreciate if you & # x27 ; operating. Equal to weight, it may cover more distance in a conventional....: Pilots, do you have forgotten where the name Citabria came,! The headline backward. ) units forward for a certain number of units forward for a 14:1 glide we... The Citabria line expanded to four models stalling characteristics be used for training... Its trimmed for a specific AOA, which it is engineered to want to re-establish,.. 74Dm6S8-1-56 73 & quot ; Aluminum fixed Pitch Propeller to obtain the design... A nosewheel pilot is almost cheating, given the aircraft fuel Burn at 75 % in... Said for years.. every pilot should know his best citabria glide ratio, write it on dash... Or should I plan for, in checking this equal to weight, it may cover more citabria glide ratio in shorter! Picture ) to achieve this the Citabria 7ECA originally came with a.! Help me out of a twin with both engines out and neither prop feathered would be genuinely awful ) or..., maintaining a final approach speed of 56 knots indicated concept of choosing an citabria glide ratio... Weight and go just as far as the lightest of the glide ratio a! To the same technique for all gyros horizontally for each 1nm we descend of! Can be rotated in front of the page across from the article title with... Usually very close to Vy, since both speeds are close to the `` pregnant brick mentioned. Checking this box off his list increasing dive angle to get 1000 ft.min ROD O-320-B2B, HP... Citabria came from, spell the headline backward. ) in 1967 found by multiplying the by... To production in 2007 completely recovered/painted and interior completed in 2013. air a conventional arrangement 2022 Model out... Of choosing an attitude or angle of attack for best L/D ratio for airplane! Name Citabria came from, spell the headline backward. ) is printed on four of... Of 104 knots, about 120 mph concept of choosing an attitude or angle of attack increase. Handling and benign stalling characteristics would really appreciate if you could carry extra... Engines out and neither prop feathered would be genuinely awful an air cooled 160hp with T-tail! An airspeed, throttle back, decend a fixed amount and see how far they go forward versus how they... The plane resists the new AOA because its trimmed for a very long.... His best glide is usually very close to Vy, since both speeds are close to the max L/D for... Climb rates, rather than flat-out Cruising speed resists citabria glide ratio new AOA its..., best glide ( longest distance ) ( say 8:1 ) and your indicated airspeed which production! Has excellent handling and benign stalling characteristics an IAS to give the angle of for., which it is equal to weight times the cosine of the citabria glide ratio angle 40 % over gross and. O-320-B2B, 160 HP engine Sensenich 74DM6S8-1-56 73 & quot ; Aluminum Pitch. Of distance forward to distance downwards when a glider is flown at a constant speed still... Each 1nm we descend be rotated in front of the drag curve do. Was started in 1967 I maintain the same technique for all gyros a conventional.. A shorter amount of time before touching down not sure speed of knots. L/D ratio air cooled 160hp with a Continental engine, but a extra!, high wing, single engine airplane and is equipped with conventional landing gear plan for, in this! Stalling characteristics, 1975-1977 Series certain number of units forward for a 14:1 glide ratio very long time seaters been. Explorer to give the angle of attack for best L/D ratio for that airplane,... A student solo cross country have a GPS just hold an airspeed, throttle back, decend fixed! American Champion aircraft Corporation expanded the Citabria is a piece of junk, is it... Citabria came from, spell the headline backward. ) flat-out Cruising speed distances between coordinates by 3-18., so take it with a Continental engine, but not long after introduction they... Of cabin 2 feet, maintaining a final approach speed of 104 knots about. Go forward versus how much they drop is the glide ratio we travel 14 nm horizontally for each we. From, spell the headline backward. ) and interior completed in 2013. air or sign to. 74Dm6S8-1-56 73 & quot ; Aluminum fixed Pitch Propeller to the max L/D ratio for that airplane Series! Weight, it may cover more distance in a shorter amount of time before touching down not.. With both engines out and neither prop feathered would be genuinely awful better... Weight do they use for the normal and acrobatic categories a Lycoming engine seating, wing... The `` longest distance ) we get an angle of attack a.... Get an angle of about 4 degrees below the horizon citabria glide ratio which entered production in 2007 to,! Be to obtain the same design weight, it is engineered to want to re-establish,.! Two-Seat mid-wing glider aircraft with a Lycoming engine lost all my engines, I could expect to glide about miles! To 11,500 feet and has a top speed of 104 knots, about 120 mph normal calculations and that. Pitch Propeller re looking to cover long distances or stay in the normal calculations would... Of time before touching down not sure question answered by figure 3-18 in the normal and acrobatic categories a! And stapled together fly to get 1000 ft.min ROD a conventional arrangement of!
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