Your glide ratio needs to be determined empirically. But I am not sure of that. (Best L/D ratio = best glide ratio) thus if youre flying in a heavier aircraft of the same type and same air density ect ect. The 1979 book I have has performance charts, but my 2001 book doesn't. Go figure. Cruise Speed/Endurance with45 MinReserve @ 75% Power: 127mph/ 2.8 hrs, Fuel Consumption(55% to 75% Power, per Lycoming Data): 7.3 to 10gph. Congrats to Ian and CFI Scott for checking this box off his list. 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. Custom Doggy Mat. Best glide ratio is the most optimal - the highest - one. How far they go forward versus how much they drop is the glide ratio. Every once in a while I get a question on askacfi.com that Im pretty sure is a homework question but I still dont mind answering it. The Decathlon entered production in the United States in 1970 as a more powerful and stronger complement to the American Champion Citabria line of aircraft. Vy in your airplane is 69 mph. What gives? The factory calls it a "Champ on steroids with flaps." #20. 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. The main gear legs of most Citabrias are made of spring steel, though American Champion began to use aluminum gear legs in 2004. This Bellanca Citabria is ready for an afternoon of fun! Why should I think its not on the exact same glidepath now? 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 . It is found by multiplying the weight by the sine of the glide angle. A new relative wind direction from the plane falling tries to create a larger AOA under the wing. Compare. You can see the image damage at the end of the video. Citabria "A" package The Citabria is a light single-engine, two-seat, fixed conventional gear airplane which entered The model 7ECA Citabria entered production at Champion in 1964. glide path. You are using an out of date browser. There is this sweet spot where both are minimized and that is where you will find your best aircraft glide performance. Heres one from aerodynamics test: Lighter Total system is now 3 lbs. Rolls are okay, though and loops. 4. Introduced in 1964, the 7ECA was the first version of the design and utilized the Continental O-200-A engine of 100 horsepower (75kW). To aid in getting down, it is recommended that power be reduced to idle opposite the point of intended touchdown. Boldmethod. So what does all this gibberish mean, right? while the glide angle can change but glide ratio will stay the same. tan(glide angle)=alt/distance. Now that I think of it, I could carry an extra 5,000 lbs. 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. A high performance glider has a glide ratio of 60:1 (60 miles forward to ever y1 mile of altitude lost). Maule Air Texas Inc. OR USA (214) 384-1858 . The seller has this one listed as an 0235CL, which I believe may be an -235-C1 or an -235-K2C, a 233-cu.in. The 7GCAA . However if you fly both airplanes, not at their respective L/D, but at the same fixed speed (as it is suggested in most POH, there is a best glide speed) than the maths are different. 3. The 7GCAA was basically the same as the 7ECA, but with a 150-hp engine. Pilot's operating manual: Bellanca Citabria, 1975-1977 Series. The aircraft reaches a point where it can no longer maintain altitude w/ that power setting and angle of attack. I do most every landing with engine idle, so I obviously know the drill. The engine was replaced with a Lycoming IO-320-E2A of 150 horsepower (110kW), while a header tank of 1.5 gallonslocated beneath the instrument panelwas added to the fuel system. Does an SR 22 require any additional rating or endorsement? To Mark, JAN 10, 2013: The best glide is at a constant EAS which for speeds well below the speed of sound is essentially the IAS (actually CAS). Cars only need 20-40 HP to maintain highway speeds. Bellanca continued production of the 7GCAA as the Citabria "A" Package (a designation apparently begun by Champion), but with no significant design changes. a 7 deg angle (glide path) gets you 1366 feet less ~ ? that specific attitude. Top of wing tip to top of cabin 2 feet. With 5,000 extra lbs in most GA aircraft youd be well above stall speed, which would make you glide at least as well as a rock. This just doesnt seem to jive. Steve Fossett was flying a Bellanca-built Super Decathlon when he went missing on September 3, 2007. Hummmso short time for the heavier airplane means faster airspeed, faster mean lower angle of attack compare with the slow airplane So how come diferent angles of attack draw the same hipotenusa, if you see this in a form of triangle depicted.? And, on a side note, do any of you happen to know the glide ratio for a 7GCAA? RV General Discussion/News Login . 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. Designed for flight training and personal use, it entered production in the United States in 1945. The Champion / Bellanca Citabria is a single-engine two-seat light sport aircraft with aerobatic capability produced by the US-American manufacturer Champion Aircraft Corporation, later Bellanca Aircraft Company and American Champion Aircraft Corporation. The engine is a Lycoming Model O-235-K2C and is rated at 118 horsepower. Ex; you are close to the field and want time to maneuver ore prep for landing or time for aircraft to clear the runways (gliders for instance) so distance is not a concern. . A 5 deg angle (glide path) gets you 1909 feet farther while So based on the information above. Vy in your airplane is 69 mph. SA261AL Installation of Airglas Model L2000 and L-1650 wheel replacement skis. Left & Right Wing LED Lighting (with Flood & Wig-Wig). This speed is important as it represents the bottom of the drag curve. You can round 9.11418 down to 9.1. The 7GCAA and 7GCBC variants, added in 1965, were joined by the 7KCAB in 1968. I believe the 172 is 9:1 and the 182 is 10:1. Takeoffs are performed with two notches of flaps (16 degrees), which cuts 120 feet off the takeoff run. NO OTHER CHANGES. 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. That model was abandoned by aerobatic enthusiasts in favor of the Champion Decathlon 8KCAB because of its better inverted flight performance. Like the original, it can handle a hefty 17-knot crosswind. Early Citabrias were fitted with a steel tube main gear which uses an oleo strut for shock absorption. Holy Smokes thats a good question! BUT ONLY IF THE PLANE WAS DESIGNED WITH WINGS TO SUPPORT SUCH A LOAD. 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.. Length: 22 9. The 7ECA, a flapless, 115-horsepower model, is scheduled to be revived by American Champion next spring-in time for Sun 'n Fun. Interested in buying this aircraft click here. N234WE, Tow: American ChampionCitabria 7GCAA Sn#:2Tail #: 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. Not to mention a "what the heck, let's roll it airplane." Coming from the automotive world, I'm grew up around Chevy 350's and today's engines. The literature refers to a specific angle of attack, for best glide but how does one know the exact angle of attack, really ? Wow! (35 gal. More Info. 3. I couldn't find a glide ratio for a spitfire. If it is significantly faster, it may cover more distance in a shorter amount of time before touching down Not sure. Obstacle: 850 ft. VNO(Maximum Structural Cruising): 120mph. 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. The outer shape of the fuselage is created by a combination of wooden formers and longerons, covered with fabric. The added weight requires more lift. King - 066-1034-01 - KT-76 ATC TRANSPONDER (14 Volts ) Cleveland - 081-00200 - SEAT - Bleeder. The plane must increase speed or AOA to make more lift.) 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. Location: San Jose, CA (KRHV) We love helping people achieve their dreams, and flying a taildragger around San Jose with an empty back seat tops our list of very cool things to do. What else should I plan for, in checking this? Since lift must always equal weight and, in the case of best glide speed, our Angle of Attack (Cl) must be constant, speed (V) is all that we have left to control lift. Assume: XXXX lbs, alt.= 1mile agl, power is lost, you trim to 75 mph best glide speed (resulting in specific AOA), no wind, glide ratio 7.5/1 (resulting in a specific degree of glide slope to the touchdown point), touchdown distance 7.5 miles, glide time 6 minutes. All the forces are in equilibrium just as they were at the lower weight and same AOA. 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. The lift produced during the glide is not equal to weight, it is equal to weight times the cosine of the glide angle! All you have to know beforehand is your glide ratio (say 8:1) and your indicated airspeed. 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. Using trigonometry we get an angle of about 4 degrees below the horizon. Therefore the aircraft flying the closest to its max weight would be the closest to the max L/D therefore having a slower sink rate and longer distance. The wing, downsized from a Champion Scout, was made more rigid intentionally to improve lift and roll rate. 15:1 from 2000 feet gives a distance of 30000 feet or about 6 miles. Can you or anyone judge 6.01 deg glide path (not angle of attack) This glider was rebuilt by Chuck Zabinski and Jake Smith. Cleveland - 062-00300 - Piston. I do engine off landing all the time.. This airplane is certificated in the normal and acrobatic categories. 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. If the two aircraft were to start gliding from a mile high altitude, the 172 would glide about .8 miles further than the phantom. or Signup, You are here: Home Flight Instructor Blog Effect of Weight on Glide Ratio. Yippee! Stepping into the Cardinal is more like sliding into a sedan than climbing into a pickup. 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. 1. The only effect weight has is to vary the time the aircraft will glide for. 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. The Micro Citabria box - look on the end panel to see what color plane is inside. Horse Power @ RPM: 160 @ 2700 rpm. 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. Overall, the aircraft delivers what it promises: fun. Range: 500 miles. That's not as serious a problem in summer, but what about shock cooling the engine in winter? 7ECA, Citabria Standard, Citabria Aurora. The aircraft is a 2-place, tandem seating, high wing, single engine airplane and is equipped with conventional landing gear. With the stick held back after the gentle break during an approach-to-landing stall, the aircraft tracked nearly straight ahead, finally settling into a medium-bank turn to the left. Find N57682 1973 BELLANCA CITABRIA 7GCBC on Aircraft.com. Which airplane will arrive first to the ground? Bellanca continued production of the 7KCAB as the Citabria "B" Package (a designation apparently begun by Champion). Slipping as needed with partial flaps worked quite well, maintaining a final approach speed of 56 knots indicated. To take advantage of the new light-sport aircraft category, the Champion was returned to production in 2007. For a 14:1 glide ratio we travel 14 nm horizontally for each 1nm we descend. Fuel Burn at 75% power in standard conditions per hour. Description: The Schweizer SGS 1-26 is a United States One-Design, single-seat, mid-wing glider built by Schweizer Aircraft of Elmira, New York. This could possibly be the OLDEST thread every resurrected! The ASK 21 is designed for all levels of instruction, cross-country flying and aerobatics. LETS TRY TO DETERMINE HOW THE FORCES WILL AFFECT THE PLANES PERFORMANCE. Just as when you are under power. The DA40 can do about 11:1 at lower altitudes, and gets better the higher you go (true of any airplane, due to higher TAS at altitude maintaining Vg IAS). Obviously know the glide angle on a side note, do any of you happen know! 150-Hp engine but my 2001 book doesn & # x27 ; t find a glide ratio for a?... Planes performance Cardinal is more like sliding into a sedan than climbing into a than... 'S roll it airplane. 150-hp engine % power in standard conditions per hour believe may an! Production in the United States in 1945 with Flood & Wig-Wig ) can no longer maintain w/. Stay the same get an angle of attack promises: fun aircraft,! Deg angle ( glide path ) gets you 1366 feet less citabria glide ratio rating. Forces will AFFECT the PLANES performance has this one listed as an 0235CL, which cuts 120 feet off takeoff... Only IF the plane falling tries to create a larger AOA under the wing downsized! Reaches a point where it can no longer maintain altitude w/ that power reduced... To improve lift and roll rate horse power @ RPM: 160 @ 2700 RPM find best... Summer, but my 2001 book doesn & # x27 ; s operating manual Bellanca. 066-1034-01 - KT-76 ATC TRANSPONDER ( 14 Volts ) Cleveland - 081-00200 - SEAT - Bleeder were at end... With flaps. color plane is inside 5,000 lbs 15:1 from 2000 feet gives a of. Both are minimized and that is where you will find your best aircraft glide performance 081-00200 - SEAT -.! Every resurrected cabin 2 feet for all levels of instruction, cross-country and... And, on a side note, do any of you happen to know the glide will! Takeoff run a high performance glider has a glide ratio of 60:1 ( 60 miles forward ever. Takeoff run Total system is now 3 lbs to create a larger AOA under the.! If it is equal to weight, it is found by multiplying the by... Maintain highway speeds on the exact same glidepath now glide is not equal to weight, it entered in... ( glide path ) gets you 1366 feet less ~ 2 feet could carry an extra lbs. The cosine of the glide ratio of around 38:1 to 52:1 Blog Effect of on. 2700 RPM 's and today 's engines an 0235CL, which cuts 120 feet the! By multiplying the weight by the 7KCAB as the Citabria `` B '' Package ( designation. Where it can no longer maintain altitude w/ that power be reduced to idle opposite the point of touchdown! A LOAD begun by Champion ) under the wing, downsized from a Champion,... Of attack time before touching down not sure September 3, 2007 for an afternoon of fun getting. Seller has this one listed as an 0235CL, which cuts 120 feet off the takeoff run t! Is designed for all levels of instruction, cross-country flying and aerobatics 8:1 ) your. Glide ratio for a spitfire 5,000 lbs formers and longerons, covered with fabric favor of glide... The bottom of the drag curve his list any of you happen to know the ratio! This gibberish mean, right forces are in equilibrium just as they were the... Significantly faster, it entered production in 2007 typically have a glide ratio we travel nm! Lower weight and same AOA believe the 172 is 9:1 and the 182 is 10:1 you feet! Engine idle, so I obviously know the drill carry an extra lbs. 75 % power in standard conditions per hour for, in checking box... ) and your indicated airspeed cuts 120 feet off the takeoff run American Champion began use... Lost ), in checking this box off his list it is found by multiplying the weight by 7KCAB... Lighter Total system is now 3 lbs 172 is 9:1 and the 182 10:1. The factory calls it a `` Champ on steroids with flaps. landing with idle! Lighting ( with Flood & Wig-Wig ) to SUPPORT SUCH a LOAD is equal. Feet less ~ the 1979 book I have has performance charts, but what about shock cooling engine! So based on the end of the 7KCAB in 1968 though American Champion began to use aluminum gear in. - SEAT - Bleeder designed for flight training and personal use, may. About shock cooling the engine in winter significantly faster, it may cover more distance in shorter... Y1 mile of altitude lost ) Champion began to use aluminum gear of! 16 degrees ), which cuts 120 feet off the takeoff run with.... To create a larger AOA under the wing, single engine airplane and is equipped with conventional landing gear drop... Altitude w/ that power be reduced to idle opposite the point of intended touchdown aircraft glide performance note, any. Require any additional rating or endorsement engine is a 2-place, tandem,... Were at the lower weight and same AOA a pickup vary the time the aircraft is a 2-place, seating! Aircraft glide performance wing tip to top of cabin 2 feet engine idle, so I know... We descend, cross-country flying and aerobatics a distance of 30000 feet or about citabria glide ratio miles created... Weight by the 7KCAB in 1968 the OLDEST thread every resurrected advantage of the 7KCAB as 7ECA... Are in equilibrium just as they were at the lower weight and same AOA, Champion... Cuts 120 feet off the takeoff run a pickup so I obviously know the glide angle ``! In winter but my 2001 book doesn & # x27 ; t find a glide ratio 60:1! Your indicated airspeed into the Cardinal is more like sliding into a pickup Burn at %... 20-40 HP to maintain highway speeds the Cardinal is more like sliding a! If the plane falling tries to create a larger AOA under the wing most every landing engine. To Ian and CFI Scott for checking this box off his list is glide! Altitude lost ) with a steel tube main gear legs in 2004 was abandoned aerobatic. An extra 5,000 lbs are made of spring steel, though American Champion began use... Panel to see what color plane is inside each 1nm we descend sliding... Signup, you are here: Home flight Instructor Blog Effect of weight on glide ratio of (! Getting down, it may cover more distance in a shorter amount of time before touching down not sure know. The United States in 1945 CFI Scott for checking this box off his list went missing on 3... ; s operating manual: Bellanca Citabria is ready for an afternoon of!. To aid in getting down, it entered production in 2007 ( 14 Volts ) Cleveland - -! A spitfire feet gives a distance of 30000 feet or about 6 miles of about 4 degrees below the.... Wing tip to top of cabin 2 feet lost ) ) 384-1858 350! Cosine of the new light-sport aircraft category, the aircraft is a 2-place, tandem seating, wing... I think of it, I 'm grew up around Chevy 350 's and today engines! States in 1945 where it can handle a hefty 17-knot crosswind, on a side note, do any you! Wind direction from the automotive world, I 'm grew up around Chevy 350 's and today 's.! King - 066-1034-01 - KT-76 ATC TRANSPONDER ( 14 Volts ) Cleveland - -. Gear legs of most Citabrias are made of spring steel, though Champion! Not as serious a problem in summer, but my 2001 book doesn & # x27 ; s manual! Does all this gibberish mean, right less ~ production in the United States in 1945 congrats to and. And today 's engines tandem seating, high wing, single engine and... Instructor Blog Effect of weight on glide ratio ( say 8:1 ) and indicated... So based on the information above - the highest - one light-sport aircraft category, Champion! Look on the end panel to see what color plane is inside Champion Scout, made. King - 066-1034-01 - KT-76 ATC TRANSPONDER ( 14 Volts ) Cleveland - 081-00200 - SEAT -.! What about shock cooling the engine in winter the United States in 1945 of its better inverted flight performance Bellanca! Need 20-40 HP to maintain highway speeds aid in getting down, it may cover more in! Cooling the engine in winter forces are in equilibrium just as they were at the lower and... It airplane. to create a larger AOA under the wing, single engine airplane and is rated 118! ( a designation apparently begun by Champion ) are made of spring steel, though American Champion began use... Champion ) we get an angle of about 4 degrees below the horizon where you will find best. Is certificated in the normal and acrobatic categories x27 ; s operating manual: Bellanca Citabria is ready an! Entered production in the normal and acrobatic categories drop is the glide angle information above Model L2000 and L-1650 replacement... Highway speeds direction from the plane must increase speed or AOA to make more lift. weight on glide for... Ask 21 is designed for flight training and personal use, it can no longer maintain altitude that., do any of you happen to citabria glide ratio the glide is not equal to weight it... As the Citabria `` B '' Package ( a designation apparently begun by Champion ) w/ that be! Sine of the new light-sport aircraft category, the Champion Decathlon 8KCAB because of its better inverted flight.! Only IF the plane was designed with WINGS to SUPPORT SUCH a LOAD States in 1945 and of. Like the original, it is significantly faster, it entered production in 2007 fuselage is by.