The Turbo duster is advertised as a Sport/3D aerobatic airplane. As such, it should have spirited performance, neutral flight stability, plenty of excess power, and rock-solid tracking. Let's see how it performs.
Flight Mode 1 had the flaps acting as "normal" flaps on a 3-position switch. Position 1 was flaps up for normal flight. Position 2 was flaps at 45 degrees for takeoffs and landings. Position 3 was flaps at 80 degrees for short takeoffs and landings as well as very steep and slow approaches.
Landings were a thing of beauty. The Turbo Duster could be slowed to a walk and gently touched down even without the flaps. Main wheel landings were as easy as flying the plane down till the wheels touched and cutting the power. Holding the nose up and easing the plane down resulted in impressive tailwheel first landings every time. The flaps were very effective and could slow the plane even further. Landing flaps and Crow allowed for some impressive steep landing approaches and even what appeared to be backwards flight on a windy day. The rudder and tailwheel were very effective and the Turbo Duster was a joy to taxi.
The Turbo Duster is an excellent sport scale model. It is very responsive to control inputs and it will perform all the sport aerobatic maneuvers with ease. Loops can be as big as your imagination and eyesight will allow. Rolls are nice and axial without the need for any differential. Inverted flight is easy and stable with only a hint of down elevator. Knife edge flight is locked in with only a slight bit of coupling to the canopy. Flaps are very effective and need just a touch of down elevator to compensate for the extra lift. Slow speed flight is unbelievable. A good computer transmitter will allow some crazy mixes of ailerons, flaps, and spoilers to really liven up your Sunday flying. Here's just a small taste of what's possible.
Nope! The Turbo Duster has no self-righting characteristics. The airframe is specifically designed for light weight and extreme performance, not basic training. However, it is perfect as a first 3D model that can also serve as a sport scale model and an everyday sport plane.
After 5 min in the chamber, erratic flights would cease and bees would make repeated, controlled vertical ascents. We scored a bee as capable of hovering flight if it successfully ascended to the top half of the chamber. After observing a successful flight at ambient air pressure (corresponding to approx. 3250 m), we slowly decreased barometric pressure (equivalent to increasing altitude) in the sealed flight chamber using a hand pump, and assessed flight capability at barometric pressures equivalent to approximately 500 m intervals (monitored via a calibrated altimeter in the flight chamber). Maximal flight altitude (figure 1, purple points) was estimated as the altitude halfway between the highest altitude of successful flight (figure 1, blue points) and the lowest altitude of flight failure (clearly indicated by repeated attempts at flight during which the bee was capable of ascending only about one body length above the chamber floor; figure 1, red points). Subsequent to determination of maximal flight altitude, the bee was removed from the chamber and the body and thoracic mass were determined to the nearest milligram [3,11]. Air temperature was monitored to the nearest 1C via a glass thermometer placed near the top of the chamber and averaged 27 6C (s.d.) across all flight trials.
Maximum hybobaric altitudes (purple points and boxplot) estimated as the midpoint between altitudes of the highest successful flights (blue points) and of flight failures (red points) for six bumble-bees captured at 3250 m in western China. Everest image by Pavel Novak and bee image by Sputniktilt; both used and modified under the creative commons licence.
Changes in stroke angles during bumble-bee flight at simulated high altitude. (a) Dorsal view of a hovering bee with means (solid lines) and standard deviations (shading around lines) of wing positions at 3250 m (left wing in green) and 8120 m (the average maximum altitude, right wing in blue). The wing positions for 3250 m are also shown in green on the right wing to facilitate comparison. Maximum, mean and minimum wing positional angles (b,c and d, respectively) and stroke amplitude, wingbeat frequency and angular velocity (e,f and g, respectively), for flight at capture and maximum simulated altitudes. Grey lines indicate data for individual bees and coloured points and lines indicate averages among all bees. Lines are only shown for variables that changed significantly between altitudes (table 1).
In this study, bumble-bees were capable of hovering at air pressures corresponding to altitudes in excess of 9000 m. When challenged in hypodense but normoxic gas mixtures, other bees are capable of hovering at similar altitudinal equivalents (i.e. approx. one-third of sea-level density; see also [4]). Moreover, the interpolative methodology used to approximate these values may underestimate altitudinal limits to flight performance. Under hypobaric conditions, bumble-bees increased stroke amplitude by approximately 20 (figure 2a), corresponding to a 15% increase from the starting value at 3250 m. This effect, when combined with little change in wingbeat frequency (figure 2f), resulted in a 16% increase in angular velocity and an estimated 35% increase in steady-state aerodynamic forces (proportional to the square of wing relative velocity). Air density decreases by about 20% over the equivalent altitudinal range, suggesting that the observed changes in wingbeat kinematics could be sufficient for weight offset at extremely high altitudes. Changes in more subtle features of wing motion (e.g. increased angle of attack, and the timing of wing rotation at the ends of half-strokes) cannot, however, be excluded.
So I'll begin by noting he's been happy flying the same DS160 servos in several 60" airframes (he said as much). And so have a lot of folks. In fact, and quite frankly, almost nobody complains about the DS160 within that class of airframe (60"), and some are flown quite hard, and for many, many flights (to include the 69" TR).
And thus, the leverage of the airflow against a ginormous control surface is enough to break the gears in flight. So is a foot bumping against the rudder of a model sitting in the pits, or bumping the rudder against the door frame of your car or house - all are enough to break the gears by exceeding the ultimate strength of the involute profile. And none of these are examples of a defect in the design but merely of encountering the mechanical limit of the servo!
So what's next? Well, since Extreme flight deem it worthy of offering the 277oz-in @ 0.09sec/60 SV1261MG, then it's worth noting for similar money you can buy the DS355CLHV, instead. Ours at 355oz-in is 28% more powerful whilst at the same time, @ 0.077sec/60 it is almost 20% quicker. Quicker is important for 3D. That, and it's built significantly better, too.
Aerodynamic database update from the flight tests using system identification techniques is a crucial tool for the development of control laws and high fidelity simulators. For the certification of aircraft under test, aero-database needs to be validated from flight tests throughout the flight envelope and also to certain levels beyond the envelope boundaries. Validation of aero-database close to envelope boundaries entails additional complexities which necessitates careful handling of flight data identification and update process. This paper discusses the approach adopted for aero-database update and flight clearance, followed by a discussion on the issues relevant in the extreme flight test regimes, such as, flow angle accuracy at higher angles-of-attack, center-of-gravity variation with fuel pitch angle for high-g maneuvering conditions and inaccuracies in Mach number at transonic speeds. Results from flight data identification of a high performance aircraft with relaxed static stability are presented to highlight the impact of each of these factors on aero-database update.
All SCA flights are instructional in nature conducted by certified flight instructors in accordance with federal aviation regulations under 14 CFR Part 61 of the United States Code. Instruction will be provided during ground and flight portions for all flights.
Crewmembers play an important role in ensuring the efficiency of "crew-spacecraft" system. However, despite of the fact that crewmembers are well trained and highly motivated persons, extreme flight factors may influence negatively on their reliability, and lead to human error occurrence. Therefore, working out methods of human error prevention is very significant to increase crewmember's performance reliability. Human error can occur in the operation of systems for a number of reasons. Within the framework of the present investigation, with use the data collected during "Mir" station missions, the significant (p
(PhysOrg.com) -- A new generation of flight simulators will attempt to make air traffic safer. googletag.cmd.push(function() googletag.display('div-gpt-ad-1449240174198-2'); ); Whether for a business trip to a neighbouring country or a holiday in the Caribbean: What most people take for granted, actually poses a great challenge not only for the transport business, but also particularly for pilots. The goal of the European Union project SUPRA, funded with 3.7 million Euro, is to train pilots in the best manner possible and prepare them for hazardous scenarios.Scientists from nine institutions and industrial enterprises aim to investigate motion perception in extreme situations as well as to improve flight simulators, thereby making an important contribution to enhanced aviation safety. Researchers from the Max Planck Institute for Biological Cybernetics in Tübingen, Germany, will contribute to the biological foundations of understanding how pilots become disoriented in extreme flight conditions, and how balance and visual information combine in the brain.Student pilots receive ever increasing amounts of training in simulators, combined with flight training in real aircraft. This saves money, helps protect the environment and above all, is a safer form of training. Standard flight manoeuvres, such as take-off and landing, can already be properly trained with current flight simulator technology. Extreme manoeuvres, such as recovery from loss of control are much more complex and difficult to simulate. One of the problems the interdisciplinary research team seeks to resolve is the lack of an appropriate algorithm to optimize the motion within the limited workspace of any simulator for such extreme conditions. Within the framework of the three-year SUPRA project (Simulation of Upset Recovery in Aviation), their goal is to improve the simulation of such complex flight manoeuvres and to develop a new generation of flight simulators.At first, relevant training scenarios must be chosen for the experiments. This will be done in close cooperation with professional test pilots, who have already acquired much experience with such extreme conditions. The scientists, under the direction of Heinrich H. Bülthoff at the Max Planck Institute for Biological Cybernetics, hope to discover how pilots perceive aircraft motion during the extreme situations and why they can become spatially disoriented. They are particularly interested in the interaction of vision and signals the brain receives from the balance organs in the inner ear. With the help of a robotic arm, test persons will be exposed to a variety of accelerations, while simultaneously viewing a computer-generated virtual environment. By using the appropriate stimulation of both the visual and balance systems, it is possible to "trick" the brain in such a way that the pilot perceives an actual flight manoeuvre, rather than the laboratory. For example, the scientists are able to give an impression of acceleration with purely visual stimulation, although not actually providing real motion. This perception can be enhanced by providing a suitable actual motion. This type of illusion of motion is used in flight simulators to produce a perception of motion that would not otherwise be possible due to the limited workspace.The international consortium makes use of two completely new types of simulators that exist in the Dutch research institute, TNO, and in the Max Planck Institute for Biological Cybernetics in Tübingen, Germany. "In these times of ever increasing mobility, thorough training of new pilots is an important theme. We are pleased that the European Union has provided us with the opportunity to work with an international team to make an important contribution to flight safety by improving pilot training", stated Heinrich H. Bülthoff at the start of the project.More information: Video: motion simulator: www.cyberneum.de/RoboLab_Film_en.htmlProvided by Max-Planck-Gesellschaft (news : web) Citation:A special kind of flight training (2009, December 8)retrieved 3 December 2023from -12-special-kind-flight.html This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no part may be reproduced without the written permission. The content is provided for information purposes only. Explore further
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