I trimmed a Strato Streak using this excellent tutorial, learning a lot. I considered that to be enough. 50+ years later, I decided to give it another go with my 4.5-year-old grandson and the initial results were pretty much what I remembered. (???!)
.jpg)
Think of them as fuel that you burn. The plane will roll in a circular arc. We want the motor to be free to unwind without rubbing on the stick, so we must make a hook that holds the motor farther from the stick. The Academy of Model Aeronautics is using the Sky Streak to introduce beginners to model aviation. It will need a lot of room for takeoff. This angles the left wing more into the airflow, so it gets more lift and counters the left torque roll. You will need two 5 long form boards, two 2 long pieces of 2 Ace bandage, some tape, two 1 1/2 tall blocks and a jar of water about 4 11/16 in diameter. Put the rudder and fin back together, mark 1/4 and 3/4 along the rudder separation line. Now that we have got successful flights out of our Sky Streak, we want to find ways to get longer flights. The heavier airplane will need to fly faster to support its weight. In addition, I will demo a competitive version that has special features. Center the wing between the pencil marks. Putting the motor in a film can is a good way to do it.
guillow balsa planes streak grp rubber powered toy sky band wood balsa streak 5) Aft motor hook using a dress pin (w/ball end) with the hook suspended so that the rubber motors rarely rubs the fuselage.
rei streak balsa plane package sky power wood This is a good time to file off any sharp edges, too. Put tape on the can for a label. Having a full circle with a slight overlap reduces the chance of the motor coming off the hook. The stock wing has 6.4 degrees of dihedral angle under each wing. This is not the best that can be done. It takes less rudder or sidethrust to correct the torque roll. Also mark the exact center of the wing and 3/32 on either side of that, as we did before.
The trailing edge of the fin is soaked in water until the wood is flexible.
Be careful that both wings have the same leading edge. But a motor that is wound close to breaking will not last very long. That isnt necessarily the best that can be done with it. This with the motor wound up only 80% and not the optimum motor. That will require cutting the prop shaft and making a new one. Their AeroLab CD includes an instructional video on building the Sky Streak. Line your eye up with thecenter lineof the wing and look straight across it, then look out along the wing to the tip and make sure it is not twisted.
With care, it can be got to fly reasonably well. Now I will show you how to wet form wing camber using a form. They have produced an instructional sheet for the Sky Streak, showing how they bend the wing tips up to improve lateral stability. Unless you have a very big flying field, it is preferable to have the plane circle the same way on the way up and on the way down.
streak sky guillow balsa pack It is unlikely to dive right. The one on the plane is so close to the stick that the knots rub on the stick.
airplanes streak jetfire powered balsa wood rubber band windup guillow bundle sky toys copter flying Here is a video using a 15 loop of 3/32 rubber for the motor. Right rudder works whether the motor is turning the prop or not. Notice that there is more curvature near the leading edge. I made the stem longer than intended. Pull it all the way through until the hook loop is up against the wood, with the opening to the back. There will be even more and bigger knots on the longer motor. Greater stability makes it easier to get a good launch. The left sideslip produces more lift under the angled left wingtip, countering the left torque roll before it goes too far. Although the curved edge of the fin is supposed to go into the slot (above), I put the straight edge into the slot and use the curved edge as a trim tab (below).
The launch needs to get it only up to flying speed. We need to put pencil marks on the wing to align the wing with the form. The AMA sells Sky Streak kits with the instruction sheet included, as well as a motor of 1/8 contest rubber. The prop shaft is made from 0.045 diameter steel wire. The details are described in the text below the video screen. The outer wing panel was soaked in water to soften the wood, then it was strapped onto a curved form with an Ace bandage to shape the curve, and allowed to dry. Put the hinge wires on the right side of the fin to bend right for a right turn. Or you can wet bend the trailing edge of the fin a bit to the right, to act like a rudder. The blocks at the ends insure that both tips are held flat to the support blocks that are parallel with each other and the center. After you have seen it fly a few times, you will have a better idea how fast to release it. You will find that different combinations of side thrust and rudder can accomplish similar or different flight patterns. You cant rebend a removed shaft, the wire will likely break. It is helpful to have marks along the slot so you can keep track of where the wing is. It will be easier to curve the airfoil shape near the tip.
I love your number 6. You wont be able to get much curve near the center. Great educational video of beginner Rubber Powered FF Airplane from beginning assembly to end of flight. A right-right flight pattern can be accomplished with a bit of right thrust for right turn in the climb and a bit of right rudder to maintain right turn in the glide. With even more right thrust, you can make the plane dive in to the right. Dont forget the lube. The jar shown above is 4 1/8 diameter. This motor must be wound using a winder and stooge. There were scratches on the box. When it is soft enough to form, blot the surface dry. It turns more slowly, lengthening the motor run. The motor in particular is from stock rubber strip. Place it so the rudder is deflected to the right, since we want a right turn. When the wood is completely dry, unwrap the Ace bandage. I used an 11 7/8 x 14 9/32 piece of thin cardboard from a cake box weighing 33.2 grams. I will tell you about that later.)
I would prefer more depth to the curve, but thats about all that can be had with this stiff piece of wood. Make sure it is centered and square. Start by putting a mark 5 in from each wingtip. It made a complete flight and landed upright on its wheels. It is amazing how well it flies. You can moisten the wood and finger form camber into the fin to pull to the left, turning the nose to the right. It is important that these parts be centered. Start by putting about 150 turns into the motor. Scrub it clean with steel wool. A fast airplane also responds strongly to any control inputs. Check that everything is in the correct place before each flight.
We cant bend balsa sheet in two opposite ways at once, so the center of the wing must remain straight across the middle to maintain the bend upward to the tips. Wrap the Ace bandage tightly around the wing, moving outward with each wrap, all the way past the wing tip. Notice the stall and tumble at the beginning. It will wear out and break much sooner. Airplanes may be rated according to their wing loading, the ratio of flying weight to lifting surface area. The motor and propeller will take it from there. Put one end of the wing into the water. Other liquid soaps may be used, such as Johnsons Baby Shampoo. Lets get some 0.025 diameter steel wire at the hobby shop. It makes it easier to overcome the torque roll of the wound motor. I say slightly because the Sky Streak is a fairly heavy airplane that must fly fast to stay up. Buy several AMA Cub kits and continue with the AMA Cub Squirrel, the AMA Cub Denny Dart and the AMA Cub Pennyplane. (I started with a 1/8 width because that is what comes with the kit. Make a 1/4 long cut just above that line to form the bottom edge of the rudder. Twisting the whole wing can have the same effect.
With those modifications and 1,100 to 1,200 turns on the motor (79 to 86% of breaking) I have had many flights of 35 to 37 seconds. They also stretch wind their motors with a winder. Instead, hook an index finger and little finger around the fuselage on either end of the slot and PULL the wing through the slot. Count like this: One, two, three, four, five, six, seven, eight, nine, ONE, that is your first ten. For whatever reason, I can now increase the windings to 500 with the 10 loop and that thing climbs like a rocket even though I know it has more torque with the shorter loop. The next step is to learn to cut out and assemble parts to make more complex airplanes that can fly better. The cambered wing will help lift the extra weight of the larger prop. It is a bit of the logic behind the Squirrel wing. Later I decided that 3/32 strip is better.). After that, everything slips together according to the instructions. The added length brought no benefit so I decreased the loop size to 10 to save weight. I will first explain how to form camber in the wings with fingers. Cut the wire 3/8 away from the bend. Dave teaches kids how to build and fly Sky Streaks. The tips were raised 1 11/16 (1 1/2 + 3/16), putting them 11/16 above the center. When flying on a small field, consistent circle direction is preferred, whether left-left or right-right. We want to make simple flying models easier, better and more accessible to the world! It surprised me by going off to the right in a large circle, getting lost in the trees. Tilt the wing until you can look straight across both edges. Im going to give this a try. It slips together in less than two minutes without glue, pins or sharp tools. You will need to scavenge a D6 propeller assembly or remove your D5 propeller from its hanger and replace it with a D6. You can also use scissors on this thin, soft wire.
toys flying airplanes streak balsa jetfire rubber sky band wood copter windup bundle powered play sports outdoor First make a 1/4 cut into the trailing edge of the fin, just a bit above where it comes out of the slot in the stick, to make the rudder separation. The single most important thing you can do to get longer flights is to use a longer motor.
form the camber at the same time. I found that it worked without the glycerin, but like all liquid soaps, it dried out quickly. If you are looking to win competitions or break records, you will need a good supply of extra motors and good lube, because you will be winding close to the breaking point and motors will not last long. You could see in the last picture that I lost a little of the dihedral. I made a 14 loop (HTP = 8) but I couldnt really get more than 400 turns without over-torquing the plane and sending it into a kamikaze dive. Weigh it down with soup spoons to keep it under water. We want to leave the center 2 of the wing alone for now. You can shift it slightly with your fingers. I decided to try forming the curve with my fingers. You can also wrap rubber bands around your fingers to get a better grip on the parts. Competition flyers also make their motors longer than the distance between the hooks to get more turns in. The area of the wing pattern must be (4.496/33.2) 169.775 = 22.99 square inches. I have worked up to as many as 400 turns. Identify the leading edge. If it does that, something is unsymmetrical. It is good to know about all of them. As you increase the turns and torque of the motor, you will begin to see the plane climbing less, not more. If a motor gets in dirt, wash and relube it before the next flight. Rebend it according to the following directions. There are several things that may be done. We want to tie the ends together without the rubber abradingitself. The stiffness of the balsa will force the curve to be gradual. This article takes me way forward in my thinking Thankyou! Each set includes five components; a wing, a propeller assembly with shaft and bearing, a 7 rubber band motor, a parts sheet and a fuselage stick with wire motor hook. It will settle down and land on the wheels, too. Later I will show you how to make modifications that will greatly improve flights. You can also use the fin to reduce the left turn or produce a right turn. It will keep its shape once it dries out. Push it straight up and pull it out of the wood. We are advocates of simple model aviation! ROG flights wont work in wind. Apply a drop with a toothpick.
Once you have figured out the right place for the wing, you want to be able to get it back there again. The higher speed of flight means it is more tricky to trim. With the left wingtip down, the plane slips downward to the left. After each flight, some things may need to be put back in place. The classic motor lube is a mix of equal parts glycerin and green soap.
balsa guillow airplane The soap makes it slippery and the glycerin keeps it from drying out. Start with the AMA Cub Master Class. It has a 12 wingspan and is 11 long. The Balsa Cabin, Put stooge and winder in the search window. Align the high point mark on the wingtip with the high point line on the form. A figure 8 is hard to fit on a small flying field. Place the wire in the glue and position it carefully. At that time, it is done. A good place to start would be the AMA Cub series on EndlessLift. They can be found online. It could be that better performance would result from rubber stripcustom cutto width. Here is the pilot on the finished airplane. Tomorrow I will be helping at the AMA Flight Camp in Muncie, IN and in my portion of the event, we will be featuring the use of a modified Skystreak. We want to leave the dihedral curve as is.
Tie a simple overhand knot in the two strands, as close to the end as you can. The right hand helix starts on the circle just opposite the straight piece and comes out just enough to clear the O-ring that will be used on the longer motor.
balsa guillow biplane (Except I made it a tiny bit longer than it needs to be.). Redampen and rework as needed until they match as closely as you can get them. If you are teaching a class, use a plastic jar full of sand or gravel. I have two profile scale airplanes, an F4U and Japanese Jill using the bto fly that use the basic Skystreak with added material to assume the scale outlines. This prop size is too small for the wing area. Insert the tailplane into its slot and center it between the pencil marks. WOW! Pull the strands apart to move the knot to about 1/8 from the ends. Greater dihedral improves roll stability. Flying and Improving Your Guillows Sky Streak.
gui balsa packs twin total toy wood guillow planes streak sky The greatest camber would be 1/6, approximately 5/32, located 0.8, approximately 13/16, from the leading edge. The heavier prop will require the wing to be moved forward. The Causeway, Maldon, Notice that the hook on the propeller shaft goes on the same side of the stick as the wire motor hook at the back end of the stick. The AMA breaks the wings and bends the tips up to increase the tip dihedral. Fill a jar 5 deep with water. ), When you are satisfied with the shape of this wing, put the other end in the water and shape that wing. It is best to not do this together with the 6 prop.
And more dihedral to provide more roll stability. Put a tiny bit of light machine oil on the prop shaft and bearing. Shyam Soak the whole wing in a cookie pan of water. The wing forms were cut to 6 lengths. You dont know where the second circle is going to come out. You can cant the wing, putting the left wing forward of the right wing. Needless to say he was shocked and understood the need for a larger flying site. I had the experience of having the motor hook slide up through the wood so I couldnt get the motor on the hook. Also mark 3/32 on either side of the center. For the polishing, I discovered that the multi-colored finger nail buffers are magnificent!! The wing must be moved all the way forward.
balsa guillows gliders jetfire streak guillow schylling pickrightly Soak the whole wing in water until it becomes soft and flexible. Guillow toy airplanes have been around for over 60 years providing millions of youngsters fun and enjoyment letting their imagination soar. Hold one tip of the prop straight below the nose with one hand and hold the stick right behind the wing with the other. That completes the assembly. This motor can take up to about 1,400 turns. The good news is it will be added to their camp next year. You will notice a change at first, but after a while you will not notice any further change. Straighten it and remove it entirely from the wood. You have taken so much time and so many pictures illustrating every step.
This will make the pilot hole for the hook wire.
Finally, with similar mods and 3/32 rubber the Skystreak can do almost a minute indoors if the prop pitch is increased. A piece of paper can be folded on one edge to make a right angle. I found that bubble soap makes an excellent knot lube.
Remember that side thrust is most effective at high torque, but not at all when the motor has unwound and rudder is most effective at high speed, but retains effectiveness at gliding speed. File it round. The center was supported on a 3/4 x 1 1/2 x 3 block of wood to keep the inside ends of the forms off the table top. The stock wing has 6.4 degrees of dihedral angle under each wing.
guillow streak Also look at the wing from the front. Full strength lube is too slippery, the knot will untie itself. Start making the new hook by bending a full circle right handed helix with a tiny bit of straight overlapping at the end. Go together in minutes but provide many hours of back yard entertainment. CA glue is the fastest way to do it, but any glue will work, as long as you use plenty of glue and give the glue time to dry before putting a motor on the hook. Sunlight especially deteriorates rubber motors. Start by filing the cut sharp end off the wire, as usual. It does not take much bend in the rudder to make this fast plane turn.
balsa Dont get water on the central 2 of the wing. I did that after the wing had completely dried out. The motor must be wound fairly tightly. Here is a video of a 40 second flight. You will want two of them.). https://www.amaglider.com/, Great Sir Respect for you. Tape the end of the Ace bandage to the back of the form, extending off the trailing edge. Then the propeller will pull the airplane to the right. Science Olympiad National Supervisor, Aeronautics. The new hook looks like this. This increases the roll stability and resists the roll to the left. Kids love airplanes that can take off from the ground, what we modelers call ROG Rise Off Ground. Too much right thrust and you will have the opposite problem, the plane will dive to the right into the ground. You can do it, too. Place the trailing edge of the rudder on top of a shim to space it up off the table by the amount you want the rudder to be deflected. A form board for this wing would be 2 x 5. The wrong amount of right rudder can have the same effect as the wrong amount of right thrust; the plane will arc to the right into the ground, or it may zoom straight up into a stall.
Sitemap 18
