Altitude Limiter for R/C Planes
Winged Shadow Systems announces the Sky Limit altitude limiter. The Sky Limit monitors altitude and/or flight time of an R/C plane. When the plane reaches the user-specified altitude or time limit it reduces the throttle to a preset level. Applications include: altitude-limited electric soaring (ALES) competition, altitude
limiting to meet rules and regulations, keeping planes within visual range, fun-fly and club contests, or just having fun. The Sky Limit works in any gas, glow, or electric-powered model. Electric motors
are turned off completely while engines are throttled down to a reliable idle point. The user can also choose to allow, or inhibit, throttle restarts after the limit is reached. A tiny, 3.6-gram airborne circuit installs inside the plane
Accessories for flying models
www.parkflyerplastics.com
and connects to the receiver and the throttle servo (or electric speed control). A plug-in programmer is used to select altitude (in feet or meters), time, and option settings. The Sky Limit offers several additional features including the capture and display of the maximum altitude of a flight. A selectable anticipator (anti-zoom) function reduces altitude overshoot. Additionally, an elevator mode allows experienced pilots to experiment with channels other than the throttle. The plug-in programmer has a
two-line LCD display and simple two- button control. Housed in a compact 1.6-inch square enclosure, it is powered by the airborne circuit and needs no batteries. The altitude limit range is 50 to 9999 feet (15 to 3050 meters). The timer has a
range of 5 to 9999 seconds. Both can be turned off to allow unlimited flight without the need to remove the airborne unit from the plane. The Sky Limit and the Programmer are available separately or together at a special
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combo price. Like all products from Winged Shadow Systems, they are designed and manufactured in the USA. Complete details (including free instruction sheet downloads) are available on their website. Sky Limit & Programmer Combo, $54.90 Sky Limit (airborne unit), $39.90 Sky Limit Programmer, $24.90
WINGED SHADOW SYSTEMS, PO Box 432, Streamwood, IL 60107, 630-837-6553,
www.WingedShadow.com
BUILDING WITH FOAM A beginners guide to building model airplanes with foam
by Keith Sparks
This is a step-by-step How-To Guide to building R/C planes from foam. It consists of 80 pages of descriptive text and graphics for building models of most sizes. Even though it is directed toward the novice builder, there are plenty of hints and tricks for the intermediate to advanced builders. Soft-covered, 8¹⁄₂ x 11.
$16.95 + s&h
To Order Call: 1-888-526-5365 (M-F; 9 am to 5 pm est) or FAX us at: 973-383-4064 (24/7) or online:
www.carstensbookstore.com
Carstens Publications, Inc. JULY 2012
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