6
6.0
Feb 8, 2021
02/21
by
Center for Accessible Technology in Sign
movies
eye 6
favorite 0
comment 0
ASL vocabulary
Topic: cutting edge,forefront,leading edge,progressive
895
895
Jan 1, 2018
01/18
by
Leading Edge
software
eye 895
favorite 1
comment 0
MS-DOS 3.30 For the Model "D" Series Computer Disc 2 has bad sectors towards end. May be in empty space, but can't tell. Likely data damaged, unfortunately.
Topics: Leading Edge, software, microsoft, floppy, DOS
Supersonic flow past a semi-infinite array of flat plate cascaded airfoils is analyzed using a linearized method of characteristics procedure. For a cascade having subsonic leading edge focus, but otherwise arbitrary geometry, frequency of blade oscillation, and interblade phase angle, pressure distributions and lift forces and moments are determined. These are used for flutter analysis and the determination of flutter boundaries. In addition, the linearized method of characteristics procedure...
Topics: Aeronautics, Cascade, Subsonic leading edge locus, Flutter
3
3.0
Apr 4, 2021
04/21
by
Alexander Herzig (ZerwasMOD)
data
eye 3
favorite 0
comment 0
Leadingedge asked me to kindly remix his other Fine Tune Adapters. So here they are. The threading is more coarse. Especially with more ridgid PETG makes it easy to assemble. I have chosen to make a wider threading, isometric M14x2, so that the threads are more coarse and so easier to print functionally. I fine tuned the threading even more manually, so that it has a little more play. Still the thread has enough friction to stay at the position it was dialed in for. The thread works for me out...
Topics: thingiverse, Knife_Sharpener, Parts, stl, leading_edge
Accurate estimation of the aerodynamic stability derivatives of airplanes is essential to evaluate the performance of the aircraft, whether civilian or military. Theoretical prediction methods for the dynamic stability derivatives at high angles of attack have not advanced, and in the present paper, an attempt has been made to study the effect of damping derivatives for delta wings for different angles of incidence, and the Mach number for a wing whose leading edge is straight. In this paper,...
Topics: Damping Derivative, Straight Leading Edge, Delta wing & Hypersonic
A 1/7-scale F/A-18 Hornet UAV was constructed for use in generic fighter high-angle-of-attack research. The aircraft, purchased as a kit, has been extensively modified to incorporate rudders and trailing edge flaps. In addition, an emergency parachute recovery system (EPRS) was installed for use in the event of departure from controlled flight, loss of radio signal, structural failure or any other anomally that would preclude a normal landing recovery. Parachute performance data and design...
Topics: UAV, Supermaneuverability, Forebody strakes, Leading Edge Extension (LEX)
This paper presents the results of an analytical study to account the effect of the sweep angle of a delta wing whose leading edges are curved on roll damping derivative at various angles of attack and the amplitude of the full sine waves. In the present theory, the effect of Leeward surface has been taken into consideration with the attached shock case at the leading edge. For a detached shock case, this theory will not be valid. Results have been obtained for the hypersonic flow of perfect...
Topics: Curved Leading Edge, Delta Wing, Hypersonic & Sweep Angle
3
3.0
Apr 4, 2021
04/21
by
Alexander Herzig (ZerwasMOD)
data
eye 3
favorite 0
comment 0
Leadingedge asked me to kindly remix his other Fine Tune Adapters. So here they are. The threading is more coarse. Especially with more ridgid PETG makes it easy to assemble. I have chosen to make a wider threading, isometric M14x2, so that the threads are more coarse and so easier to print functionally. I fine tuned the threading even more manually, so that it has a little more play. Still the thread has enough friction to stay at the position it was dialed in for. The thread works for me out...
Topics: thingiverse, Knife_Sharpener, Parts, stl, leading_edge, hapstone_v6
3
3.0
Mar 19, 2021
03/21
by
Alexander Herzig (ZerwasMOD)
data
eye 3
favorite 0
comment 0
Leadingedge asked me to kindly remix his other Fine Tune Adapters. So here they are. The threading is more coarse. Especially with more ridgid PETG makes it easy to assemble. I have chosen to make a wider threading, isometric M15x1.5, so that the threads are more coarse and so easier to print functionally. I fine tuned the threading even more manually, so that it has a little more play. Still the thread has enough friction to stay at the position it was dialed in for. The thread works for me...
Topics: Parts, thingiverse, leading_edge, hapstone_v7, Knife_Sharpener, stl
3
3.0
Jan 19, 2022
01/22
by
Andrew Landicho Jr (Thr1fty)
data
eye 3
favorite 0
comment 0
This design is inspired by https://www.thingiverse.com/thing:4929847 The downfalls of cghildreth's design: * I didn't dig the linear bearing. it made too much noise and had far too much play. a sleeve that can be replaced serves my purposes better. * No need for set screws its all press-fit. Yes, both components are Press-fit * I couldn't find the linked bearing for sale anymore Post-Process: Requires light sanding. inner sleeve bore should be drilled and reamed to 8mm and some change The...
Topics: thingiverse, Knife_Sharpener, stl, leading_edge, Kitchen & Dining, knife
261
261
May 29, 2011
05/11
by
Bellan, J.; Lathouwers, D
texts
eye 261
favorite 0
comment 0
A novel multiphase flow model is presented for describing the pyrolysis of biomass in a 'bubbling' fluidized bed reactor. The mixture of biomass and sand in a gaseous flow is conceptualized as a particulate phase composed of two classes interacting with the carrier gaseous flow. The solid biomass is composed of three initial species: cellulose, hemicellulose and lignin. From each of these initial species, two new solid species originate during pyrolysis: an 'active' species and a char, thus...
Topics: SUBSONIC SPEED, VORTICES, DEFLECTION, SUPERSONIC TRANSPORTS, DESIGN ANALYSIS, FLAPPING, AERODYNAMIC...
3
3.0
Apr 4, 2021
04/21
by
Alexander Herzig (ZerwasMOD)
data
eye 3
favorite 0
comment 0
Leadingedge asked me to kindly remix his other Fine Tune Adapters. So here they are. The threading is more coarse. Especially with more ridgid PETG makes it easy to assemble. I have chosen to make a wider threading, isometric M14x2, so that the threads are more coarse and so easier to print functionally. I fine tuned the threading even more manually, so that it has a little more play. Still the thread has enough friction to stay at the position it was dialed in for. The thread works for me out...
Topics: thingiverse, Knife_Sharpener, longmen_sharpener, longmen, Parts, stl, leading_edge
Leading Edge Model D Operator's Guide, Fourth Edition (D3.1-87-9-10)(December 1986) scanned: 2021-01-14 part number: D3.1-87-9-10 pages: 100 resolution: 3109x5096 @ 600 dpi post-processed: none OCR: Automatic FineReader 9.0
Topics: Scans, BitHistory.org Archive, BitHistory.org Documentation Collection, NoST, aOCR, Leading Edge
Leading Edge Model D MS-DOS User's Guide v3.10, First Edition (February 1986) scanned: 2021-01-12 pages: 108 resolution: 5000x6460 @ 600 dpi post-processed: none OCR: Automatic FineReader 9.0
Topics: Scans, BitHistory.org Archive, BitHistory.org Documentation Collection, NoST, aOCR, Leading Edge
Leading Edge Model D Operator's Guide, First Edition (February 1986) scanned: 2021-01-12 pages: 90 resolution: 5000x6460 @ 600 dpi post-processed: none OCR: Automatic FineReader 9.0
Topics: Scans, BitHistory.org Archive, BitHistory.org Documentation Collection, NoST, aOCR, Leading Edge
Leading Edge Model D MS-DOS Reference Manual v3.10, First Edition (February 1986) scanned: 2021-01-12 pages: 364 resolution: 5000x6460 @ 600 dpi post-processed: none OCR: Automatic FineReader 9.0
Topics: Scans, BitHistory.org Archive, BitHistory.org Documentation Collection, NoST, aOCR, Leading Edge
3
3.0
Mar 19, 2021
03/21
by
Alexander Herzig (ZerwasMOD)
data
eye 3
favorite 0
comment 0
Leadingedge asked me to kindly remix his other Fine Tune Adapters. So here they are. The threading is more coarse. Especially with more ridgid PETG makes it easy to assemble. I have chosen to make a wider threading, isometric M14x2, so that the threads are more coarse and so easier to print functionally. I fine tuned the threading even more manually, so that it has a little more play. Still the thread has enough friction to stay at the position it was dialed in for. The thread works for me out...
Topics: Parts, thingiverse, leading_edge, edge_pro_apex, Knife_Sharpener, stl
Leading Edge Model D Guide to BASIC v3.11, First Edition (February 1986) scanned: 2021-01-14 pages: 316 resolution: 5000x6460 @ 600 dpi post-processed: none OCR: Automatic FineReader 9.0
Topics: Scans, BitHistory.org Archive, BitHistory.org Documentation Collection, NoST, aOCR, Leading Edge
This study investigates the aerodynamic effects of modifying the leading edge on an unmanned combat air vehicle (UCAV) 1303. Literature suggests that leading edge accelerations are reduced for rounder leading edges and stall characteristics are altered. These phenomena are examined using the previously tested 1/72 scale model with a 47-degree leading edge sweep and a cranked trailing edge delta wing with fuselage. The study consists of both flow visualization and aerodynamic force and moment...
Topics: Unmanned Combat Air Vehicle, UCAV, UCAV 1303, Tip Stall, Leading Edge
Loss measurements were conducted using a five-hole conical pneumatic probe in a subsonic wind tunnel containing a modeled cascade of controlled diffusion (CD) stator blades. Following reference measurements at high incidence one blade was modified (slotted at the leading edge) in an attempt to (passively) reduce the size of the leading edge separation bubble and thereby improve performance. Prior to the surveys, the acquisition and reduction software was modified to provide loss calculations...
Topics: Cascade Wind Tunnel Loss Measurement, Controlled DIffusion Blading, Slotting Leading Edge
463
463
May 6, 2010
05/10
by
James, H. A.; Maki, R. L
texts
eye 463
favorite 0
comment 0
Low speed aerodynamic characteristics of swept- wing aircraft with blowing flaps and leading-edge slats
Topics: AERODYNAMIC CHARACTERISTICS, WINGS, AERODYNAMIC CHARACTERISTICS, FLAP, LEADING EDGE, SWEPT WING,...
213
213
May 6, 2010
05/10
by
Valentine, E. F
texts
eye 213
favorite 0
comment 0
Pressure-drag effects of rounding leading edges of hypersonic inlets
Topics: HYPERSONIC INLETS, LEADING EDGES, PRESSURE DRAG, HYPERSONIC INLET, LEADING EDGE, PRESSURE DRAG
1,486
1.5K
Oct 24, 2015
10/15
by
Engineering
texts
eye 1,486
favorite 0
comment 0
This paper involves study of Savonius Vertical Axis Wind Turbine (SVAWT) blades. In past few years more research works are carried out to increase efficiency of Vertical Axis Wind Turbine. Review of all these papers shows that the experiments are conducted only on semi cylindrical bucket shape blades, twisted blades, blades with end flap edges and blades having frames with cavity vanes, for two blades, three blades and four bladed Savonius Vertical Axis Wind Turbine(SVAWT) to increase...
Topics: Savonius Vertical Axis Wind Turbine, Flow guides, hybrid rotors, leading edge, CFD.
306
306
May 31, 2011
05/11
by
Singleterry, Robert C., Jr.; Sobieszczanski-Sobieski, Jaroslaw; Brown, Samue
texts
eye 306
favorite 0
comment 0
This paper reports on an initial assessment of using a Field-Programmable Gate Array (FPGA) computational device as a new tool for solving structural mechanics problems. A FPGA is an assemblage of binary gates arranged in logical blocks that are interconnected via software in a manner dependent on the algorithm being implemented and can be reprogrammed thousands of times per second. In effect, this creates a computer specialized for the problem that automatically exploits all the potential for...
Topics: AEROACOUSTICS, LEADING EDGE SLATS, FLOW MEASUREMENT, ACOUSTIC MEASUREMENT, DATA BASES, MICROPHONES,...
207
207
May 6, 2010
05/10
by
Neel, C. B
texts
eye 207
favorite 0
comment 0
Aerodynamic heating of sweptback wing leading edge
Topics: AERODYNAMIC HEATING, LEADING EDGES, SWEPTBACK WINGS, WINGS, AERODYNAMIC HEATING, LEADING EDGE,...
BitCom v2.6 For Leading Edge Modem (BIT Software, Inc.)(1986) dumped: 2003-08-16 sha1sum: 8754d6672ccc5aec8c66ba52037c8aec091faeb1 status: not verified
Topics: Floppy Dumps, DOS Applications, BitCom, Leading Edge, BitHistory.org Archive, BitHistory.org...
7
7.0
Jan 21, 2021
01/21
by
Zach Brown (Pikajoos)
data
eye 7
favorite 0
comment 0
Replacement flip out foot I made for an old Leading Edge mechanical keyboard.
Topics: thingiverse, foot, leading edge, keyboard, alps, mechanical keyboard, Replacement Parts, stl, flip...
38
38
May 18, 2010
05/10
by
1110 KBND Radio News
audio
eye 38
favorite 1
comment 0
Your Town Broadcast, segment two, we talk with Parelli Natural Horsemanship about May 22nd and 23rd event in Redmond. We also talk to Leading Edge Aviation about helicopter pilot training financed by GI bill
Topics: 1110 kbnd radio news, kbnd news, your town, Parelli Natural Horsemanship, Leading Edge Aviation
Leading Edge LEPC Model D - MS-DOS v3.10 (Disk 1) Leading Edge LEPC Model D - MS-DOS v3.10 (Disk 2) GW-BASIC v3.11 (Leading Edge Hardware Products, Inc.)(1986) dumped: 2003-08-16 sha1sum disk1: 9932d0a59c1555afd6c0d6bc14a7ed1915d3667b sha1sum disk2: 0e19e8f13379dc57a0794b275375524b0c1258fa status: clean dumps
Topics: Floppy Dumps, Leading Edge, MS-DOS, Operating Systems, BitHistory.org Archive, BitHistory.org...
7
7.0
Jan 20, 2021
01/21
by
Richard Boulanger (Lob0426)
data
eye 7
favorite 0
comment 0
This is a modification of the Scout Tail Repair Clip. This can be used to repair a leading edge, strengthen a leading edge or just to have a more refined leading edge for better aerodynamics. I recommend you hot glue this on for the best strength. It will stay on without glue. Let me know how it works for you!
Topics: Leading edge clip, thingiverse, flitetest, Adams readiboard, R/C Vehicles, Foam board repair, stl
Leading Edge LEPC Model M-H Diagnostics (Leading Edge Hardware Products, Inc.)(1985) dumped: 2018-12-12 sha1sum: 2daf86f295df1f8daaf02060ad4808fb77ab1055 status: clean dump
Topics: floppy disks, DOS Applications, CMOS Setup, Leading Edge, BitHistory.org Archive, BitHistory.org...
Leading Edge LEPC Model M-H - MS-DOS v3.10; BASIC v3.0 (Disk 1) Leading Edge LEPC Model M-H - MS-DOS v3.10; BASIC v3.0 (Disk 2)(L-F-310-120-000079D-013186 U) (Microsoft Corporation)(1985) dumped: 2018-12-12 sha1sum disk1: e0cefd28900960668fa8704515f82f195ce27cb3 sha1sum disk2: 50d6fe774ae8a832611a513ff6c812e204d56f39 status: clean dumps
Topics: floppy disks, Leading Edge, MS-DOS, Operating Systems, BitHistory.org Archive, BitHistory.org...
Optical encoder tracker ball F3052-40 - CEI, Calvert Electronics International, Inc. 1970
Topics: ball, pin, lamp, tracker, output, rotation, circuit, mounting, pins, tracker ball, positive...
9
9.0
Apr 26, 2021
04/21
by
Lee Schofield (Painless360)
data
eye 9
favorite 0
comment 0
These are a few things we use here when building one of these fun little models. It includes a cover for the default sized component cut-out (with gaps for ESC, antenna and servo wires), a clip to hot-glue over the ESC/motor cables to help stop them snagging on landing and covers for the winglets to help protect them in case you clip a tree/bush as they are thin and the leading surfaces get damaged by branches easily. You can see all of these pieces in this video -...
Topics: hobbyking, protector, thingiverse, leading edge, stl, cover, bonzai, bonsai, R/C Vehicles, clip,...
Leading Edge Model N3/SX Diagnostics Diskette (Leading Edge Hardware Products, Inc.)(1991) dumped: 2003-08-15 sha1sum: 56f91f92d4171855c5aa85fb9eab611bdea927fe status: not verified
Topics: floppy disks, BitHistory.org Archive, BitHistory.org Software Collection, No Screenshots, DOS...
333
333
Jul 12, 2010
07/10
by
Baganoff, D.; Liu, G
texts
eye 333
favorite 0
comment 0
No Abstract Available
Topics: AERODYNAMIC CHARACTERISTICS, ARROW WINGS, LEADING EDGE SWEEP, SWEPT WINGS, AERODYNAMIC STABILITY,...
Leading Edge - MS-DOS v5.0 (Microsoft Corporation)(1991) dumped: 2003-03-05 sha1sum disk1: 3a4638842ee0234b5c408f355c022c07f607a73c sha1sum disk2: 1f88d402e7a887f3b799cea5f4180f3292a91115 status: not verified
Topics: floppy disks, BitHistory.org Archive, BitHistory.org Software Collection, No Screenshots, Operation...
Leading Edge LEPC Model D Diagnostics v4.2 (Leading Edge Hardware Products, Inc.)(1986) [!] dumped: 2003-08-16 sha1sum: 58e0d97b4b4b12e94f7e990cd094fb3c1d01b00b status: clean dump
Topics: floppy disks, BitHistory.org Archive, BitHistory.org Software Collection, No Screenshots, DOS...
Leading Edge - Windows v3.00a (Microsoft Corporation)(1990) dumped: 2003-03-05 sha1sum disk1: 054ff48139cd8f19f409e6cb014a4f31d90b28b0 sha1sum disk2: 8e607575897d7fc3cc2f3dd125af1dce712e6012 sha1sum disk3: dcb5b0d1dbbf3c6c28678d8b4b2142759b094933 sha1sum disk4: 6556ca8acc084e5c71c2546ff73acbcf74d0a9b3 sha1sum disk5: 506883df7c5bf5b9f1bf502ba18284a15376c9d2 sha1sum disk6: 47ae82d87ac797561bf412770351ba394e7377d2 sha1sum disk7: 0ed0f8ff3dffa00746ae2786acb2d65d932686e1 status: not verified
Topics: floppy disks, BitHistory.org Archive, BitHistory.org Software Collection, No Screenshots, Operating...
A study of the subsonic aerodynamics of hinged flap systems for supersonic cruise commercial aircraft has been conducted using linear attached-flow theory that has been modified to include an estimate of attainable leading edge thrust and an approximate representation of vortex forces. Comparisons of theoretical predictions with experimental results show that the theory gives a reasonably good and generally conservative estimate of the performance of an efficient flap system and provides a good...
Topics: NASA Technical Reports Server (NTRS), SUBSONIC SPEED, SUPERSONIC TRANSPORTS, DESIGN ANALYSIS,...
9
9.0
Mar 9, 2021
03/21
by
Lee Schofield (Painless360)
data
eye 9
favorite 0
comment 0
This is a simple pre-moulded piece for the wingtips of a HobbyKing Teksumo flying wing. These winglets are easily damaged and have pieces ripped out of them from trees and bushes in the event of a crash/hard landing. These 'bumpers' are designed to fit snugly over the leading edge with a line of hot glue and provide protection. Thanks for looking - Happy Printing!
Topics: leading edge, winglets, stabilisers, bumber, R/C Vehicles, flying wing, stl, thingiverse, demage,...
481
481
Jun 1, 2011
06/11
by
Rhee, Myung J
texts
eye 481
favorite 0
comment 0
The purpose of this study is to examine the previously unpublished instantaneous pressure data of the Aeroflightdynamics Directorate Two-Dimensional (2D) and Three-Dimensional (3D) Oscillating Wing Experiment to better understand the process of dynamic stall vortex development on the NACA 0015 airfoil. This report presents representative 2D instantaneous pressure data for the upper and lower surfaces of the airfoil at various chordwise locations obtained at specific angles of attack during...
Topics: AERODYNAMIC CHARACTERISTICS, VORTICES, SUPERSONIC SPEED, SWEPT WINGS, DELTA WINGS, LEADING EDGE...
The dynamic stall of rapidly pitching and oscillating airfoils is investigated by the numerical solution of the full compressible unsteady two- dimensional Navier-Stokes equations using an alternating-direction-implicit scheme. The flow is assumed to be fully turbulent, and the turbulent stresses are modelled by the Baldwin-Lomax eddy viscosity model. Three airfoils (NACA 0012, NACA 0012-33, and NACA 0012-63) are analyzed for the purpose of examining the influence of leading-edge geometry on...
Topics: Aerofoils, Leading edges (Aerodynamics), Oscillating wings (Aerodynamics), Dynamic stall,...
Topics: DTIC Archive, Hepper, R H, MCDONNELL AIRCRAFT CORP ST LOUIS MO, *MOLYBDENUM, *WELDING, STRUCTURAL...
Leading Edge Word Processing v1.3a (Leading Edge Products, Inc.)(1984) [!] dumped: 2003-08-16 sha1sum disk1: a4d98a10dc0d691a75b95b85d8a028f511eb45ec sha1sum disk2: 0ccf50aa75ff8d17b49637c681f5f9934ec49cb8 sha1sum disk3: 579cabac0771ee15255adefd94aabf82bae61bb1 status: clean dumps
( 1 reviews )
Topics: floppy disks, BitHistory.org Archive, BitHistory.org Software Collection, No Screenshots, DOS...
From the bitsavers.org collection, a scanned-in computer-related document. dysan :: 224-2a 5inch DS AlignmentDiscSpec Aug79
Topics: track, diskette, alignment, usee, dysan, inches, burst, rev, centerline, azimuth, leading edge,...
160
160
May 28, 2011
05/11
by
Greeley, Ronal
texts
eye 160
favorite 0
comment 0
With the flyby of the Neptune system by Voyager, the preliminary exploration of the Solar System was accomplished. Data have been returned for all major planets and satellites except the Pluto system. Results show that the surfaces of terrestrial planets and satellites have been subjected to a wide variety of geological processes. On solid- surface planetary objects having an atmosphere, aeolian processes are important in modifying their surfaces through the redistribution of fine-grained...
Topics: BOUNDARY LAYER CONTROL, LAMINAR BOUNDARY LAYER, LAMINAR FLOW, FLIGHT TESTS, SUCTION, BOEING 757...
1,340
1.3K
May 21, 2011
05/11
by
Samuels, John C; Gale, B
texts
eye 1,340
favorite 0
comment 0
No Abstract Available
Topics: AIRFOILS - WEDGE - DOUBLE - CHAR & MOMENTS, WING FLAPS, WING FLAPS, LEADING-EDGE, WIND TUNNEL...
Acoustic effects of serrated brass strips attached near the leading edges of two different size rotors were investigated. The two bladed rotors were tested in hover. Rotor rotational speed, blade angle, serration shape, and serration position were varied. The serrations were more effective as noise suppressors at rotor tip speeds less than 135 m/sec (444 ft/sec) than at higher speeds. high frequency noise was reduced but the low frequency rotational noise was little affected. Noise reductions...
Topics: NASA Technical Reports Server (NTRS), LEADING EDGE SLATS, NOISE REDUCTION, ROTOR BLADES,...
375
375
Jul 12, 2010
07/10
by
Webb, L. D.; Andriyich-Varda, D.; Whitmore, S. A
texts
eye 375
favorite 0
comment 0
The design of inlets and nozzles and their interactions with the airplane which may account for a large percentage of the total drag of modern high performance aircraft is discussed. The inlet/airframe interactions program and the flight tests conducted is described. Inlet drag and lift data from a 7.5 wind-tunnel model are compared with data from an F-15 airplane with instrumentation to match the model. Pressure coefficient variations with variable cowl angles, capture ratios, examples of flow...
Topics: AERODYNAMIC CHARACTERISTICS, VORTEX FLAPS, COMPUTER PROGRAMS, COMPUTERIZED SIMULATION, PREDICTION...
