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- เผยแพร่เมื่อ 10 ก.ค. 2024
- If you're flying any high-performance RC glider, you'll have heard of the term ballast. So what does it do? What does it mean to ballast up your glider? What is ballast made of? Why is it used in F3K, F5K, F5J, F3B, and F3J gliders? How is ballast used in your glider? Let's go through the basics of ballast in this video using my Deviant DLG glider as an example.
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What's your heaviest ballast stick weight? Mine is 140 grams but I never use it... the heaviest one I'd use is usually the 80-gram stick.
My heaviest is 60 grams, but in my CX5 I can put two sticks. For one round in Hungary WC I had 60 + 40 = 100g in my model.
60gr, but flying only for fun. F3K is not yet competitive in my country.
@@IvanMacKenzie how do you put two sticks in?
@@stratigios that’s a good start! I hope more people join you, where are you from?
@@ArmSoar my sticks are tungsten fishing weights, there is just room for them side-by-side in the fuse. My wing connector is very low profile, it does not intrude into the ballast area at all. This was not "by design", but "by luck". I never considered using more than one ballast stick, until the group before me had everyone running downwind to retrieve their models! :P
Just getting my first dlg and first carbon glider for that matter. Thanks for taking the time to explain. I am very happy you are sharing your expertise so beginners like me can learn.
I’m glad to help! Welcome to the DLG family!
Another succinct, easy to digest primer...thanks Thomas.
You’re so welcome, Paul!
Nice LTT-like segue to your ad portion of the video. 😂
I was wondering if anyone would get it!! LTT does it best :D
Awesome info, thanks
Thanks Thomas!!
No problem! 😁
Hi I am a big fan
Thank you :)
Nice
really enjoy these videos, I have learned a lot of useful information. can't really say Id buy any armsoor products, in my opinion they have priced themselves out of a lot of business, I have seen their products up close and they are very high quality , as a composite specialist I know what that takes to produce that kind of quality . I also know what the basic products cost and I can say with absolute certainty its not as high as you might think
I been looking at getting into DLG's and im a current RC pilot and would like to buy a decent quality glider, I been dumbfounded at the prices..... ArmSoar is ridiculously priced
A word about the impact of wing loading on th polar of the glider would be in order. I often fly with water ballast in the wings of my full size glider and it increases x-country speeds greatly in good conditions. At higher flying speeds the glide ration of your glider improves a lot with ballast - but it has to go long with flight regimes of high air speeds, for example in final glide.
Oooooooooooooooooooooo Yeeeeeeeeeeeeeeeee 🤘
Hi Thomas - if you take the B2 as an example what is the AUW un ballasted vs 'with ballast' you might recommend starting out?
My BAMF 2's are between 205-240 grams AUW empty depending on layup. I'm mostly flying around the 220-230 gram mark, and then I would go to the strong at ~240grams, and from there start adding ballast. I rarely ballast my standard layup models unless I didn't have a strong layup with me. I can take my BAMF 2 to 380 grams with ballast but I never fly that heavy, 320 grams is about the maximum I would fly.
Like you say is a very hard thing to master… how can I know the increment of ballast each time?…. Very informative and entertaining video keep it coming
I have all my weights in ~20 gram increments: 20/40/60/80/100/120/140 grams. I don't feel much difference with smaller gaps, although I know some are also flying in 10 gram increments.
@@ArmSoar thank you for the info.
nice Segway into the commercial
Got to find a way to expense the video production costs somehow!
Then you could use less expensive building materials like GFK instead of CFK. Then the plane must get other wings instead of more wight. It will not get in my mind
That will lead to a plane with weights spread across the wingspan, reducing launch height, agility, and thermal sensitivity.