Electronics World articles Popular Electronics articles QST articles Radio & TV News articles Radio-Craft articles Radio-Electronics articles Short Wave Craft articles Wireless World articles Google Search of RF Cafe website Sitemap Electronics Equations Mathematics Equations Equations physics Manufacturers & distributors LinkedIn Crosswords Engineering Humor Kirt's Cogitations RF Engineering Quizzes Notable Quotes Calculators Education Engineering Magazine Articles Engineering software RF Cafe Archives Magazine Sponsor RF Cafe Sponsor Links Saturday Evening Post NEETS EW Radar Handbook Microwave Museum About RF Cafe Aegis Power Systems Alliance Test Equipment Centric RF Empower RF ISOTEC Reactel RF Connector Technology San Francisco Circuits Anritsu Amplifier Solutions Anatech Electronics Axiom Test Equipment Conduct RF Copper Mountain Technologies Exodus Advanced Communications Innovative Power Products KR Filters LadyBug Technologies Rigol TotalTemp Technologies Werbel Microwave Windfreak Technologies Wireless Telecom Group Withwave RF Cafe Software Resources Vintage Magazines RF Cafe Software WhoIs entry for RF Cafe.com Thank you for visiting RF Cafe!
Anatech Electronics RF Microwave Filters - RF Cafe

PCB Directory (Manufacturers)

LadyBug RF Power Sensors

Please Support RF Cafe by purchasing my  ridiculously low-priced products, all of which I created.

RF Cascade Workbook for Excel

RF & Electronics Symbols for Visio

RF & Electronics Symbols for Office

RF & Electronics Stencils for Visio

RF Workbench

T-Shirts, Mugs, Cups, Ball Caps, Mouse Pads

These Are Available for Free

Espresso Engineering Workbook™

Smith Chart™ for Excel

DC-70 GHz RF Cables - RF Cafe

Radio Controlled Scale Bell-Boeing V-22 Osprey Model
Videos for Engineers

Radio Controlled Bell-Boeing V-22 Osprey - RF Cafe Video for EngineersAs with amateur radio hobbyists who continually help advance the state of the art in electronics, software, and communications, so too do model aircraft hobbyists help push back the frontiers of ignorance in their realm. Guys like Tom Mast, a Staff Engineer with Bell Helicopter Textron, are part of a fairly elite cadre of people with an ability to integrate a large collection of skills into a single sophisticated project. Knowledge of rotorcraft and fixed wing aerodynamics, propulsion system mechanical and electrical requirements, microcontroller programming, structure weight-strength tradeoffs, materials science, design-for-production aspects, and the skill to fly both fixed and rotor wing models were necessary to pull this off. I have not found any detailed history on the development, but about three years of dedicated effort was required from concept to reality. As you can see from the detailed photos in the build process documentation, the high quality of engineering throughout is typical of what you would find on a military-grade system.

The radio system is a highly configurable, 2.4 GHz, spread spectrum model that is in common use by fliers of top-end helicopters and aerobatic airplanes. When I opened up my 2.4 GHz DSSS radio a few years ago and documented it, I found off-the-shelf ICs and RF components. The magic is in the controlling firmware/software.

Kits are available from Tom's Rotormast company both for a basic, profile fuselage version and for a full-scale fiberglass body. It is a bit pricey, but it does include specialty components like high torque servos for nacelle tilt actuation (no 5,000 psi pneumatic pistons like on the full-size version), wiring harness, and microcontroller. You will need to provide the RC system, motors, batteries, gyros, and Electronic speed controls (ECSs). Total investment will be somewhere in the $3k range. If you have a much more limited budget but really want an R/C V-22 Osprey, try this one on for size for about $130.

Rotormast V-22 Osprey Nacelle - RF Cafe

Flying Radio Controlled Model of Bell-Boeing V-22 Osprey

A More Affordable V-22 Osprey Model  (~$130)

Videos for Engineers - RF CafeThis archive links to the many video and audio files that have been featured on RF Cafe.

1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9
10 | 11 | 12 | 13 | 14 | 15 |
16 | 17 | 18 |19 | 20 | 21 | 22
23 | 24 | 25 | 26 |

Posted November 29, 2011

DC-70 GHz RF Cables - RF Cafe
TotalTemp Technologies (Thermal Platforms) - RF Cafe

RF Electronics Shapes, Stencils for Office, Visio by RF Cafe

Exodus Advanced Communications Best in Class RF Amplifier SSPAs