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When u guys doing the towing? Can i go see? I have a EZ Glider too. I really like to see how it's done. Ok to post location/time/date here. Thanks and hope to see u
When u guys doing the towing? Can i go see? I have a EZ Glider too. I really like to see how it's done. Ok to post location/time/date here. Thanks and hope to see u
Great idea on a standardised format
PFW BBQ - SengKang Field
Time: From 5 pm onwards
Date: 12 April 2008
Suitable HLG: Up to 2.5M wingspan.
...please note that the field is directly opposite (across the TPE) from the regular PFW FF field.
Quickly put a towhook onto your EZ glider and bring it along !
Originally posted by Cycross
Tony, pm me. We can arrange. I am also keen to progress on this
Erm sorry just curious, what did you guys use to Tow the glider? a big Nitro plane?
Nope, that is known as an Aerotow !
I'll try and explain the different type of launching HLG (according to my limited knowledge - please forgive if I'm wrong !)
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Unlike a powered model or Heli, where your lipo capacity usually determines the flight duration, a HLG or DLG depends on thermals to stay aloft.
How long you'll stay aloft will depends on 2 factors
1) Skills
2) Luck
The experienced and skillful glider pilot knows all the signs of a nearby thermal and will maximise the opportunity to gain lift.
As a begineer, you'll need lots of luck as it is common to Hi-start launch your glider for 20 times and only manage 2 flights of 10+ mins duration.
There are many ways to launch a TD glider and I list them here in terms of launch height, bear in mind that the higher you launch, the better chances you have of hitting a thermal.
1) Hand launch - All TD gliders can be hand launched, basically you chuck the glider upwards like throwing a javalin as hard as you can.
Expect height of 2 to 3 storeys high with this launch method. Generally, you would hand launch a TD glider for trimming prior to Hi-starting or Winching it.
2) Discus Launch - DLG are usually smaller (1-1.5M wingspans) they are purpose built with a "grip" on the wingtip and are launch in the same manner as throwing a discus.
In the hands of a good thrower, they can reach heights of up to 6 storeys high. DLGs are extremely popular in the USA (lots of Gorillas thrower there )
3) Up Start - Up Starts consists of 20' - 35' of rubber and 200' of towlines and they need a working field of about 300'.
They will bring your TD gliders up to 200' up.
Up Starts are usually suitable for the smaller TD gliders of 2m and below or 2.5m and below. They are the ideal system for small flying fields like PFW.
4) Hi Starts - Hi Starts consists of 100' - 200' of rubber and 200' - 500' of towlines, they'll need a working field of 800'.
They will launch TD gliders of up to 3m span to a height of 500'+
They need a big field like maybe woodlands avs 12.
5) Winch - Winching is a whole different ball game, they consist of a battery powered motor spinning a towline drum which has a braking system.
During launch, the "pull" can be varied by tapping the pedal which controls the juice going into the motor.
A full powered winch tow can easily snap a TD glider's wings in half unless it is properly re-inforced.
Gliding may not be for everyone, I enjoy it because of it's pure form, relying on the elements (wind, thermals) to soar.
I have also learn to appreciate the technical aspects of gliders, why this airfoil works better than that airfoil, how critical is a 3mm movement of the CG.
And when everything comes together well, there is an immense feeling of satisfaction when you see your glider floating along efficiently without losing height.
It is something I could never get with my powered models.
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