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Vacilando a un colega en la ETSAM. El boomerang creo recordar que rodea la barra de la lámpara y a mi colega, pero no me acuerdo y en el video no se aprecia. Es un boomerang preciso y de muy muy corto alcance (aun menor que el famoso Roomarang) ideal para volar dentro de una casa, con viento cero (aunque soporta una suavisima brisa) La única pega es transportarlo porque si se dobla se fastidia pero estoy tratando de hacer uno que quepa en una carcasa de CD. DETALLES: Boomerang en hoja de polipropileno como la cubierta de plástico rugoso negra o blanca de algunos cuadernos. ¡No es acetato! El acetato se usa en la mayoría de tapas de encuadernaciones pero es más liso, se vuelve blanco al doblarlo, y es quebradizo si se golpea de canto (algún boomerang se me rompió así, siempre con acetato). El polipropileno de encuadernar es más fino y flexible que el acetato, y no lo conozco transparente. Este diseño está sacado de www.kbn3.com/bip/index2.html pero sustituyendo el cartón por el polipropileno e imprimiendo en A4 en vez de en A3. Alcance -2m. Radio del boomerang: 10cm, lo que hace una envergadura de unos 17cm. Boomerang made on a SHEET of polipropylene like those found on some notebooks or photocopied documents. It's not acetate! Acetate is not as flexible and thin, and is more fragile if hit on the edge. Boomerangs made on acetate broke with a glass-like fracture when hit this way. This design taken from www.kbn3.com/bip/index2.html but made on polipro and printing on A4 (210x297mm) instead of A3. Size: radius: 10cm, wingspan: ~17cm
The 2025 skydiving season is officially here! Join us for dropzone opening week as we kick things off with Safety Day, gear checks, refresher training, and—of course—plenty of skydives! From hop and pops to high-altitude jumps, it's time to shake off the rust and get back in the sky. Whether you're a licensed skydiver, AFF student, or just love all things skydiving, this video gives you a behind-the-scenes look at life at the DZ as the season begins. We cover everything from canopy flight, gear checks, and emergency procedures to the pure stoke of jumping with friends again. You'll see skydiving formations, freeflying, belly jumps, and maybe even a little tracking and angle flying. Plus, stick around for a look at the aircraft we jump from—whether it's a Cessna 182, Caravan, or Twin Otter, aviation is at the heart of everything we do. If you're into general aviation, parachutes, pilots, or the wild world of human flight, you're in the right place. Don't forget to like, comment, and subscribe for more content on skydiving, flying, and life at the dropzone! ✈️🪂 #skydiving #aviation #dropzone #parachuting #pilotlife #jumpseason #safetyday #flight #canopy #extremesports #AFF #funjump #generalaviation #DZlife
► Full test in Special Edition #18: https://www.multihulls-world.com/review/catamaran/vaan-r4-meticulous-design-using-recycled-aluminum ► The aim of this new Dutch builder is to launch a range of luxury catamarans based on a maximum of recycled elements - the hulls of the R4 are made of 50% recycled aluminum from window frames, road signs or license plates - and ecological materials such as cork or vegetable alternatives to leather. On deck, the two helm stations - one on each hull - and the absence of a rigid bimini are striking. The principle is to enjoy beautiful sensations at the helm. A removable cover can nevertheless be fitted. Inside, the yard wishes to break away from general trends and propose a design closer to the codes used in luxury hotels. ► TECHNICAL SPECIFICATIONS Builder: Vaan Yachts Length: 42’ (12.80 m) Beam: 23’3” (7.10 m) Displacement: 24,000 lbs (10.9 t) Mainsail: 592 sq ft (55 m²) Solent: 323 sq ft (30 m²) Engines: 2 x 10 or 15 kW Log on to our website to discover over 500 multihulls tests! Subscribe to our newsletter to take advantage of our promotions and boat show invitations! https://www.multihulls-world.com/ Follow us on Facebook! https://m.facebook.com/MultihullsWorldMag/?locale2=fr_FR Discover us on Instagram! https://www.instagram.com/multihulls_world/ Follow our multihulls news on Twitter https://twitter.com/multihullsworld?lang=fr Let’s talk about business on Linkedin https://www.linkedin.com/company/multicoques-mag-multihulls-world/ Like us on TikTok! https://www.tiktok.com/@multihullsworldmag @Vaan #vaanyachts #vaanr4 #electriccatamaran #aluminium #emmanuelvandeth #netherlands #igorkluin #multihullsworld #yachting #multihull #cruising #bluewater #sailing #sailcruising #seatrial #boatreview #bluewatersailing #powercat #boat #boatlife #boating #sailingday #magazine #YouTube #tiktok #catamaran #trimaran