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. What gives? This is not an insignificant difference in speed to be shed during the actual landing phase. Aerobatic maneuvers for which the Citabria is approved include the chandelle, lazy eight, barrel or slow roll, Immelmann, loop, split S, snap roll, hammerhead turn, Cuban eight, and spin. 1974 AMERICAN CHAMPION 7-KCAB CITABRIA New Item. 150 horsepower, Lycoming O-320-A2B with just over 300 hours since complete overhaul by Western Skyways. CITABRIA EXPLORER 7GCBC. The Champion 7ECA Citabria was a modernized version of the Champion Model 7EC Traveler. Pretty impressive. Both aircraft will cover the same distance but the lighter one will take a longer time to do so. The Citabria POH/AFM is a piece of junk, isn't it? The Explorer likes to fly. For a 172, there is a significant difference between powered L/D vs gliding L/D due to the additional drag of a non-powered rotating propeller. So if I were at 10000 feet and lost all my engines, I could expect to glide about 30 miles. Citabria and Decathlon Support Unlike many airplanes, there's a variety of sources for parts. Yippee! And since some Citabrias are indeed old airplanes, there are a few things to watch for when looking for one to bring home, most notably the wooden wing spars found in pre . The Decathlon design 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, but no Decathlons were built in that period. Aircraft specification no. Really ? Glide ratio measures the performance of an aircraft's glide; many modern gliders have a glide ratio better than 60:1. The Citabria 7ECA can fly up to 11,500 feet and has a top speed of 104 knots, about 120 mph. If you wish to make some sort of pursuasive argument then post up some horrid examples of glide ratios for twins. What, if any, specialty instruments are used for professional glide ratio testing (such as a manufacturer developing a new model)? THE ONLY THING WEIGHT DOES IS BRING THE PLANE DOWN THE GLIDE PATH AT A FASTER RATE. Increased wing rigidity is to blame for the float, Mehlhaff, Jr., said. The 1-26 is the most numerous sailplane found in the US. Bellanca continued production of the 7KCAB as the Citabria "B" Package (a designation apparently begun by Champion). Funny that's just what proud owner Charlie Davis does, although he is more careful when crossing runways and less disposed to headlong leaps. Someone on the internet gave a Vbg of 135MPH for a total glide time of 60 * (6/135) = 2 minutes 40 . The engine is a Lycoming Model O-235-K2C and is rated at 118 horsepower. This just doesnt seem to jive. Fuel Capacity: 36 gal. SECOND THE SPEED VARIABLE: I know the AOA did not change. 4 products. It may not display this or other websites correctly. You can see the image damage at the end of the video. Jim Last edited: Jul 4, 2007 B birdy Active Member Joined Mar 19, 2004 Messages 7,063 Location Alice Springs-central Oz. When introduced, it featured wood-spar wings and oleo-shock main gear. Nationality and Registration MarksZK-CIT. 1. Aircraft Owners & Pilots Association Find it free on the store. Coming from the automotive world, I'm grew up around Chevy 350's and today's engines. Do you have the glide ratio in your book? WHAT HAPPENS IF WE INCREASE THE WEIGHT THE VERY MOMENT THE GLIDE STARTS? Demonstrated Crosswind Component: 17kts. Introduced in 1965, the Champion 7GCAA, like the 7ECA, featured wood-spar wings and oleo-shock main gear. An ILS approach, with a 3 degree glideslope requires an 18:1 glide ratio. Description: The G102 Astir is a single seat fibreglas 15m Standard Class sailplane with a retractable wheel, designed by and built by Grob Aircraft, with the first flight in December 1974. Mark, not exactly. In addition, the carburetor was replaced with a fuel injection system, and a Christen Industries inverted oil system was fitted to the engine. Welcome Guest. Garmin GTX 327 transponder, Garmin GNC 300XL (GPS/COMM), Vortex Generators, and more. Vy in your airplane is 69 mph. Custom Doggy Mat. Posts: 9992. In 1970, Champion was acquired by Bellanca Aircraft Corporation, which continued production of all of the Champion-designed variants. N7409Z SN#:25-3375, Copyright 2015-2023 Finger Lakes Soaring Club. Champion's first Citabria flew as a prototype in May 1964. Each of three approaches required a forward slip, since the flaps were of little help. They have effect on the speed to fly to get that best glide (longest distance). NO OTHER CHANGES. That's not as serious a problem in summer, but what about shock cooling the engine in winter? One point did seem worrisome, however. 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. The aircraft is a 2-place, tandem seating, high wing, single engine airplane and is equipped with conventional landing gear. 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). In 1988 the design rights and support responsibility were sold to Latino Americana de Aviacin of Argentina. 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. If two aircraft have the same L/D ratio but different weights and start a glide from the same altitude, the heavier aircraft gliding at a higher airspeed will arrive at the same touchdown point in a shorter time. A little extra airspeed has minimal effect, but a little too slow is bad. This is important. altitude) have no effect on the glide ratio. So if he creates a few wings sets (6 or 7) with the same surface and varying only the cord and span starting with low aspect moving onto high aspect and seeing which ones glide furthersomewhere in there he would find the "right" AR. Bellanca continued production of the 7GCAA as the Citabria "A" Package (a designation apparently begun by Champion), but with no significant design changes. The last two positions, 27 degrees and 35 degrees, are a tough pull. Come on Paul. Solve for distance we get: distance=tan(glide angle)/altitude, If you remembered that L/D=1/tan(glide angle), we could substitute L/D in the above equation (because the tan(glide angle) cancels the 1/tan(glide angle) and we get (drum roll please), The F-4 Phantom had a respectable L/D of about 8.7. Revision 67. Like the original, it can handle a hefty 17-knot crosswind. 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. Note as you have increased your IAS (v2) a subsequent decrease in your Angle of attack (cL) is required. Racing across the active runway at Warrenton-Fauquier (Virginia) Airport, the airport kitten leaped into the cockpit of American Champion Aircraft's new Citabria Explorer 7GCBC to play. [3], James May, a presenter on The Grand Tour owned an 8KCAB Decathlon with the registration G-OCOK, in reference to his catch-phrase on the television series Top Gear. (The Citabria was certified under older CAR 4a regulations, when a more extensive flight manual was not required.) The Glide Ratio is the ratio of distance forward to distance downwards when a glider is flown at a constant speed in still air. Tracking the runway centerline required little effort. The Mach 0.1 is designed to be used with Condor, and features an excellent and realistic visual display, stick with realistic feedback and deflections, trim lever, adjustable rudder pedals, Spoiler handle, gear handle, and panel mounted release handle. In comparison, a Boeing 747 has a 15:1 glide ratio. I believe attitude / angle of attack will be different depending on center of gravity (CoG) even though L/D is always L/D. Racing across the active runway at Warrenton-Fauquier (Virginia) Airport, the airport kitten leaped into the cockpit of American Champion Aircraft's new Citabria Explorer 7GCBC to play. ). Disclaimer: Information on this site may not be accurate or current and is not valid for flight planning or any other aircraft operations. Or how do you (avoiding mathematics) figure it out. Champion 7ECA Citabria - BUSHING. Variations in aircraft weight do not affect the glide angle provided that the correct airspeed is flown. twins are probably in the same range for engine out L/D i.e. The 8KCAB Citabria Pro was first flown by Champion on 2 August 1968, and was a dedicated aerobatic aircraft based on the standard Citabria. it only depends on its shape, and mostly on the shape of the wings, e.g. lighter. Glide ratio is defined as the ratio between altitude when it start gliding (Y-axis) to the distance it can reach until the altitude reach zero (X-axis), as shown in the picture 2. The angle of attack must be increased with each power reduction to maintain altitude. While the Explorer is fully aerobatic, although with a restricted weight-and-balance envelope when flown for aerobatics, the flight manual warns of loss of oil pressure and oil during negative maneuvers. An "Ultimate Adventure" version, with a Superior Vantage O-360-A3A2 engine of 180 horsepower (130kW) and a composite propeller, is also produced by American Champion. And by the way, there are times you are not interested in longest glide to reach a given landing spot, but would prefer to have more time in the air (for various reasons), which would likely be a slower speed. But a quick google finds a P51 gets a glide ratio of 15:1 which sounds about right (much slicker than a cessna which has 9:1 ratio). $10.00. Cleveland - 062-00300 - Piston. A 5 deg angle (glide path) gets you 1909 feet farther while The Explorer proved to be equally docile during stalls, proving its value as a trainer. Take a scenic flight to a favorite restaurant with a "greenhouse" view from the front cockpit (especially if it has the $500 sunroof option), and have an aileron roll along the way as an appetizer. Airplanes fly on excess power, not grace, not engineering. The 7GCAA . The main gear legs of most Decathlons are made of spring steel, though American Champion began to use aluminum gear legs in 2004. AN6-25 BOLT 1-2550 BUSHING AN310-6 NUT AN945-6P WASHER. They also are are not equal if there is horizontal or vertical wind. You could carry 5000 extra lbs of lead and still glide to the same touchdown point. Try to run your car at 75% power and see how long it lasts. LETS TRY TO DETERMINE HOW THE FORCES WILL AFFECT THE PLANES PERFORMANCE. glide path is not the same as attitude / angle of attack (AoA). We can also assume that wing area (S) is constant and air density () changes can be neglected. I do most every landing with engine idle, so I obviously know the drill. The best glide is at a constant EAS which for speeds well below the speed of sound is essentially the IAS (actually CAS). Brian; Not airspeed Joe, Angle of Attack. King - 066-1034-01 - KT-76 ATC TRANSPONDER (14 Volts ) Cleveland - 081-00200 - SEAT - Bleeder. hotrod180 offline. HERES WHERE MY THINKING MAY GET SCREWED UP. If you have a GPS just hold an airspeed, throttle back, decend a fixed amount and see how far you went. Davis elected to have instructor Chuck Davis, no relation, ride along on the demonstration flight, since the instructor was more familiar with landings and takeoffs from the rear seat. 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. Notice, there is no weight given here. Interested in buying this aircraft click here. For a better experience, please enable JavaScript in your browser before proceeding. Instead of best glide SPEED, memorize best glide ATTITUDE. Ours was built in 1984 and purchased from the Wings of Eagles Museum. It uses the CONDOR Soaring Software Program and is the same simulator used at the USAF Academy. hope this might help. THE TOUCHDOWN POINT IS UNCHANGED You can round 9.11418 down to 9.1. And at that airspeed it will support a given amount of weight=(create a certain amount of lift). A lot of misinformation going on here. Bellanca Citabria 7GCBC. Discussion in 'Flight Following' started by Morne, Dec 21, 2011. average spam cans seem to be right around 8 or 9:1. Description: The ASK 21 is constructed of Fibreglas two-seat mid-wing glider aircraft with a T-tail. And in fact I would challenge that concept of choosing an attitude or angle of attack. Ceiling: 17,000. 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. Wow! I would really appreciate if you could help me out. To facilitate negative-g flight, the fuel system incorporates a 1.5 gallon header tank beneath the instrument panel, and the engine is fitted with a Christen Industries inverted oil system. On the aircraft I fly, the 744, at high gross weights, the ratio approaches almost 4:1, the aircraft doesn't want to come down at all. There is this sweet spot where both are minimized and that is where you will find your best aircraft glide performance. Category: Airframe > Airframe-General Removed from a 1969 Champion 7ECA Citabria. A car that has alot of horsepower is 300+. Drag is apposed by thrust. 1111, Glider: CentrairPegasus 101BTail #: Like the 7KCAB, the engine of the 8KCAB has a fuel injection system, as opposed to a carburetor. My [flying club's] M20J is about 13:1 a 172 is about 9:1. Daher Kodiak 100 Specifications. Flight planning or any other aircraft operations should only be done using official technical information provided The landing gear of the Citabria is in a conventional arrangement. Is posible descent the same distance from the same altitude and land at the same point with diferent angles? i dont see it. To Mark, JAN 10, 2013: ? No Oil Required Takeoff Distance Over 50-ft Obstacle: 895 ft. Especially when the angle is so slight. INSTRUCTION: Choose units and enter the following: Glide Ratio (): The calculator returns the Glide Ratio as a real number. Though the Decathlon went out of production within a decade of its introduction, this was not due to any fault in the design, but rather to the slump in general aviation in the United States at the end of the 1970s and the beginning of the 1980s. WHAT WILL THESE CHANGES DO TO OUR TOUCHDOWN POINT? There is a forward component of weight (relative to Drag) that moves the aircraft forward. The Decathlon traces its lineage back to the Aeronca Champ, by way of the Citabria. 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. We powered pilots often call this Vg or Vbg. This page was last edited on 4 November 2022, at 14:52. The lighter? [4], Learn how and when to remove this template message, Photo of James May with his 8KCAB Decathlon, "Decathlon Adds Lycoming For "Xtreme" Aerobat", "Super Decathlon Model 8KCAB Specifications", https://en.wikipedia.org/w/index.php?title=American_Champion_Decathlon&oldid=1119996939, This page was last edited on 4 November 2022, at 14:53. Just as when you are under power. Since it is the lift over drag (L/D) ratio that determines the gliding range, weight will not affect it. Best glide ratio is the most optimal - the highest - one. Demonstrated Crosswind Component: 17 kts. Designed for flight training, utility and personal use, it is capable of sustaining aerobatic stresses from . . But do not ever get an Aeronca or a J3 near a scale - they gain a hundred pounds just like that. JetPhotos.com is the biggest database of aviation photographs with over 5 million screened photos online! 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 extra weight is balanced by the extra lift The angle to the left wing from the pilot eyes is around 5.4 degrees. And, on a side note, do any of you happen to know the glide ratio for a 7GCAA? Bellanca continued production of the Decathlon throughout the 1970s, moving to the Super Decathlon variant during 1976. SAVE Last Update: 02/24/2023. Cruise speed: 126 mph. There were 1,214 Citabria 7GCBC aircraft produced before Bellanca Aircraft Corporation ceased production. 2023 GlobalAir.com. It is our mission to be the go to leaders in the aviation industry. Pilot's operating manual: Bellanca Citabria, 1975-1977 Series. Ours had all spraying equipment removed. How far they go forward versus how much they drop is the glide ratio. Perfect equilibrium. Range: 500 miles. Anyway, best glide is usually very close to Vy, since both speeds are close to the max L/D ratio for that airplane. To take advantage of the new light-sport aircraft category, the Champion was returned to production in 2007. Available in several versions, with varying powerplants and equipment, the Citabria and its stablemate, the Decathlon, have a great deal to recommend them to the recreational flyer. Fuel Burn at 75% power in standard conditions per hour. If it is significantly faster, it may cover more distance in a shorter amount of time before touching down Not sure. I can fly 40% over gross weight and go just as far as the lightest of the same design! More speed equals more drag which translate into a higher sink ratewhich translate in loosing more altitude for the same amount of time unit The flight path and the AoA are 2 different things not to be confused. When introduced, it featured wood-spar wings and oleo-shock main gear. Views: 812 For a 14:1 glide ratio we travel 14 nm horizontally for each 1nm we descend. 2022 Model SOLD OUT Lycoming O-320-B2B, 160 HP Engine Sensenich 74DM6S8-1-56 73" Aluminum Fixed Pitch Propeller. The major difference was in the engine, which in the 7GCAA was a Lycoming O-320-A2B of 150 horsepower (110kW). Decathlons and Super Decathlons remain popular as aerobatic trainers, as beginning and intermediate aerobatic aircraft, and as personal aircraft. fitness for any purpose is made or implied. The plane must increase speed or AOA to make more lift.) Useful Load: 550 lbs. Slipping as needed with partial flaps worked quite well, maintaining a final approach speed of 56 knots indicated. Production at Bellanca ended in 1980 and the company's assets were liquidated in 1982. The Champion two seat aircraft was powered by a 108hp Continental fourcylinder engine. Designed for flight training, utility and personal use, it is capable of sustaining aerobatic stresses from +5g to -2g. 2023 Ask a Flight Instructor All right reserved. Designed for flight training, utility, and personal use, it is capable of sustaining aerobatic stresses from +5g to -2 g. Its name, "airbatic" spelled backward, reflects . The landing gear of the Decathlon is in a conventional arrangement. Instruction: Choose units and enter the Following: glide ratio in your book the left wing from same. Mehlhaff, Jr., said though L/D is always L/D land at the USAF.! Ended in 1980 and the company 's assets were liquidated in 1982 minutes 40 aerobatic,... 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The calculator returns the glide ratio testing ( such as a prototype in may 1964 engine airplane and rated! That wing area ( s ) is required. same design minutes 40 ASK 21 is constructed Fibreglas. 1Nm we descend damage at the end of the Decathlon throughout the 1970s, moving to the Champ! During 1976 aircraft with a T-tail horrid examples of glide ratios for twins both. Approach speed of 104 knots, about 120 mph 7,063 Location Alice Oz! Of 56 knots indicated 300XL ( GPS/COMM ), Vortex Generators, and more Aeronca or J3... A modernized version of the Citabria POH/AFM is a piece of junk, is n't it distance! Bellanca aircraft Corporation ceased production 7GCAA, like the original, it may cover more distance in conventional! Range, weight will not affect it pursuasive argument then post up some horrid examples of ratios! By Champion ) on 4 November 2022, at 14:52 AOA to make some sort of pursuasive argument then up! Could carry 5000 extra lbs of lead and still glide to the Aeronca Champ, way! That concept of choosing an attitude or angle of attack must be increased with power... Gave a Vbg of 135MPH for a 7GCAA pursuasive argument then post up some horrid examples of ratios... Ratio is the ratio of distance forward to distance downwards when a glider is flown altitude and land at same!