Hf SAFETY flight box retractable landing gear Yes Safety Starter Cart provides stable platform remote behind-the-propeller starter can used paved surfaces guy wires stakes also convenient inexpensive-to-build easy-to-operate model aircraft transporter Todays model engines make ones grew up look like toys demand new respect operate especially combination glassreinforced nylon propellers Ive seen severe hand injury starting accident alloy motor mount failed engine started propeller slashed its way unmercifully up starter across pilots hand pilots hand could have permanently impaired injury could have avoided pilot started engine behind model routinely see pilots starting engines large portions anatomies eyes face neck arms hands prop arc SPA Lots modelers have seen similar incidents remote starter important contribution operating engines safely devices usually consist sliding pivoting mechanism microswitch suitable current rating starter models spinner pressed starter cone switch engages Cart makes remote starter easy use sets up quickly minimum effort needs no extra hardware Cart can carry fully assembled model least 40-size box could enlarged just about normal size model fuel support equipment car flying strip especially important because clubs flying strip quarter mile parking lot system fits conveniently compact cars hatchback everything models wing inside box Theres plenty room mount power panels fuel cans 52 Model Aviation ht line NASAs Johnson Space Center Cart wheels up making broad stable base starting models extra anchoring hardware birison RTER electric fuel pumps lead-acid batteries cutouts straps Velcro system other starter remote switch can built common materials less $20 Several types commercial homemade remote switches available use made Weaver Machining Service 6 Dewey Street Maynard MA 01754 energizes starter spinner cone tipped downward Construction Cut parts sizes indicated dimensions chosen minimize waste standard lumber sizes Painting parts good household urethane enamel before assembly ensures nothing will soak through joints seams wood Make upper 1 x 4 lower 1 x 6 frames Note staggered corner joints see illustrations make durable frames since joint lies different plane Use two countersunk #10 x 2-inch screws per corner Fasten two pieces particle board upper frame shown using two #8 x 1 /2-inch screws per side Fasten 2 x 4 x 4-inch axle blocks flush bottom edge lower frame two #8 x 1 /2-inch screws shown illustration Drill pilot hole axle blocks receive lag screw axles size pilot holes lag screws will depend wheels use wheels can now installed upper frame upside down position lower frame mark its inner perimeter Fasten 2 x 2 x 6-inch blocks particle board inside mark side #8 x 1 /2-inch screws blocks upper box should nest snugly bottom frame assembly complete mounted starter remote switch two carriage bolts short mast made 1 x 6 pine fastened mast assembly May1994 53 Cart ready roll carries fully/assembled airplane fuel starter batteries support hardware convenient package CART upper box frame two carriage bolts length mast determined size models propellers used Additional Suggestions pair drawer handles sides upper frame helpful its time heft Cart out car Some flat steel brackets could used protect edge lower frame wheels up Mine has few clings sitting loose pebbles Cart could equipped removable push bar made metal conduit PVC tubing etc prefer simple pull cord tied eye bolt lower frame can make padded cradle model just put box its landing gear Using Cart Load up go field Once out car mate two halves wheels down can assemble model car roll everything flight line Once place have flip over bottom half Cart wheels up replace upper box make starter secure ready use Now somebody would invent good needle valve extension wed have made Dont let new hardware lull complacency about other possible safety problems flight line starting posture shown photograph okay general sport flying two-handed grip enables control model surfaces coated oil still has let go hand order adjust throttle needle valve would far better have helper hold transmitter control throttle stick perhaps tweak needle valve have seen number reports accidents caused inadvertent movement throttle stick high holder wasnt ready control thrust Good luck have good time start safely Materials 41x4x231/pine 4lx6x23pine 25/ x 12 x 24 particle board 42x4x5pineaxleblocks 46-inch diameter wheels approx found plastic lawn mower-type wheels major building materials outlet less $2 apiece 2 3-inch lag screws have hex head very coarse threads Match diameter wheels will need smooth shanks about inch long Also #10 x 2/2 #8 x 11/2 wood screws polyurethane enamel similar fuelproof paint Suggested Tools Saw Drill bits Screwdriver electric power helps #8 #10 countersink bits see Black & Decker selection Frame clamp rticle Board S 2x2x6Skeg 4 places j x 4 x 2325 4 pcs lx 6 x 2325 Approx 6 WheelPine 4 pcs 4 pcs Figure 1 Figure 2 54 Modei Aviation ter Mast 1 x 6 Pine suit starter prop size Figure 3 2x4x5 Pine 4 pcs Approx 3 Lag Screw 4 pcs
