Originally posted by asesso
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Durafly Vampire build.
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Is there a definitive answer as to where the CG is on this aircraft? I have just finished a build and want to make sure I use the correct CG
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Originally posted by chipset35 View Post
I might just get it and use my 3200 mah, so I dont have to buy another battery.
Grass runway performance is a must for me.
Uh oh...I just watched a few videos...why does it always veer left during roll out?
Also, do some "testing" up high. You may find that, depending on how you let the glue set on the tail booms and the amount of elevator reflex you have (this plane needs a few degrees of UP). When you go from low rpm or cruising rpm and suddenly pour on the coals, the plane could take a nasty dive. When close to the ground, don't increase throttle too aggressively.
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Originally posted by xviper View PostThis is a 4 cell plane. A 3 cell is barely adequate. I use a 4s, 3000mah, Graphene and it's located under the strap in a mid position and it balances perfectly and has so much power, it'll blast off my rough, weedy grass in very short distance.
Grass runway performance is a must for me.
Uh oh...I just watched a few videos...why does it always veer left during roll out?
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Originally posted by Skyboom View PostI just ordered the STRIX Goblin. A good high performance aircraft. Should be here next week.
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I just ordered the STRIX Goblin. A good high performance aircraft. Should be here next week.
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BTW, it's the same battery that I use in my V-22 Osprey, just like the one in your Avatar. (I've just ordered my second one in white.)
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Oh cool. I'll get the bigger battery then. Seems like xviper and others here are more knowledgable than everybody at are club.
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Originally posted by Skyboom View PostWell, I tried to fly it today. Wouldn't take off the grass runway strip. I could try putting a bigger nose wheel on and not retract. One pilot mentioned useing a carpet for take off. It was tail heavy, when we hand launched it. Had 2200mah 3 cell shoved as far forward as possible. It's a work in progress now. Maybe a more powerfull motor would help it performe better.
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Well, I tried to fly it today. Wouldn't take off the grass runway strip. I could try putting a bigger nose wheel on and not retract. One pilot mentioned useing a carpet for take off. It was tail heavy, when we hand launched it. Had 2200mah 3 cell shoved as far forward as possible. It's a work in progress now. Maybe a more powerfull motor would help it performe better.
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I just want to get it in the air for now. The rudder system can wait. Ran into a hiccup with control rods. Have to file the ends to fit control horns on all of them. Wish they'd make the proper size, but that would be to easy. lol1 Photo
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It doesn't really need rudder unless you are landing in a cross wind a lot of the time and even then, it does quite well. It was designed as a "bank and yank" and it flies that way just fine without rudder. But if that's what you want, do it.
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Cool. Thanks. Seen videos where they've added a rudder system. Was wondering about a cross bar. Between the vertical stabilizers. That would operate both rudders. Theoretically.
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Durafly Vampire build.
If anyone has any tips or advise on this build please let me know. I can't believe it came without instructions. They gave me 5 little bill boards of Hobby King decals instead.1 PhotoTags: None
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