Hence in order to sand the rudder slot vertical I had to use a straight edge on the main wing mount as a reference – having also checked that this was representative of the main wing position. To launch one holds the glider by a finger grip on a wing tip and then one spins around as throwing a discus. For some great demos search for ‘DLG glider’ on youtube. This also helped giving a minimal sanding of the rudder side of the joint to remove the gel coat and get a better joint.I have described this as if done after the elevator mount. With the gliders weighing around 300g (11oz) the 25g force comes out at 7.5kg or 17lbs – easy to take on a straight arm. Hit "Generate & Copy" button to generate embed code. The top of the climb is detected by a script running on the transmitter that monitors the altitude. I double checked space using pieces of card with different diameter holes for nose diameters at the servo positions. (A work in progress)Requirements for the F1N and more….A beautiful example of F1N at its best….Requirements for the F3K and more….An F3K in Flight and hand catch landing!Curious to all these Letter and Number names? (It's called a Discus Launch Glider/DLG) So I've decided to build one from a plan. This looked too messy and heavy to me, plus not easy to remove the servos if they fail. The design has the rods guided by a series of 10mm long tubes at around 50mm spacing. When they hear they that my Snipe cost about $1200 for everything, it can be a little off putting, but I tell them you don't have to start with a top of line competition model. I found an Interesting model called MiMi Designed by Frans Bal. I contacted Frans via e-mail and he was very kind to send me the plans in PDF format.
In order to get to 200ft the glider needs to be launched at >80mph, and the g force in the rotation is over 25g. Share it with us! Kid) (As featured in Flying Models Magazine! It was also around 40% heavier and so came down faster. Tricky but worked OK. See photo below for the positioning of the carbon tows. This model, when entered into contests, is constrained by a maximum wingspan and a maximum weight. The rudder servo arm needs to be fairly long for the large rudder movement while the elevator servo arm is short with the small movement of the all moving elevator. DiscUSKid-36 (A tip-launch tribute to Tom Peadon's legendary U.S. I disbanded this when I realised that the pushrod would need to be more than the standard 1m length.
You can now paste this embed code inside your website's HTML where Feather² Flight Videos Click here to watch more videos of the Feather² Squared DLG Glider .
In particular I mounted all 4 servos in the nose to reduce the nose weight required and hence reduce the overall weight.
So the weight saving would be small, if any.
The DiscUSKid is a free flight tip launch glider inspired by Tom Peadon's legendary "U.S. I rounded all the edges of the V mount to hopefully lose a tiny bit of weight and drag (I don’t suppose very much).After the mod the screw presses more evenly on the top of the elevator:The target is to have the trailing edge of the elevator 5mm in front of the leading edge of the rudder. May 2010) Hoosier Daddy (Bruce Kimball's awesome tip-launch glider design) Amalgam (Jim Buxton's AMA Indoor Record Holder and Nats winning composite wing TLG) WindenBox (Stan Buddenbohm's Oldencamp inspired Nostalgia TLG) Texas Bull Weevil (Another … See above. It would look much neater if these were inside. This was fitted later when I knew what pushrod movement I could get from the servo and hence the size of the rudder horn, and hence the amount of offset required:The all moving elevator link was straightforward (well something had to be!).
The only option for the other was to get a long aerial lead and place it in the wing. Tip Launch Glider Plans.
These are designed for mounting in wings – that was no longer my plan! I then made up an offset guide to give some support between the elevator mount and the rudder horn.