Originally posted by Gringotuerto
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Official Freewing 80mm Avanti S Sport Jet Thread
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Originally posted by N4Speed View Post
Thank you! How does the 9-blade sound compared to the 12-blade fan?
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I'm looking for some clarity on the wing fences. Do they or don't they improve flight characteristics? They are fugly so if they don't I'd just as soon leave them off. If I install them there is a wide variety of opinion on to cut or not to cut. Some say the new models have a wing fence groove which they do, and so there's no need to cut, but the manual shows this and says cut. A depth of 3mm and a thickness of 2mm. I will look on Amazon for laparoscopic hobby knives.
So to recap, the wing fences are fugly. Do they provide a benefit that outweighs the fugliness? If so, to cut or not to cut with an aircraft that has wing fence grooves?
Disclaimer: I don't think they would be fugly if they were made out of a nice material instead of bleached recycled toilet paper.
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Originally posted by Chilly Bear View PostI'm looking for some clarity on the wing fences. Do they or don't they improve flight characteristics? They are fugly so if they don't I'd just as soon leave them off. If I install them there is a wide variety of opinion on to cut or not to cut. Some say the new models have a wing fence groove which they do, and so there's no need to cut, but the manual shows this and says cut. A depth of 3mm and a thickness of 2mm. I will look on Amazon for laparoscopic hobby knives.
So to recap, the wing fences are fugly. Do they provide a benefit that outweighs the fugliness? If so, to cut or not to cut with an aircraft that has wing fence grooves?
Disclaimer: I don't think they would be fugly if they were made out of a nice material instead of bleached recycled toilet paper.Hugh "Wildman" Wiedman
Hangar: Mig 29 "Cobra", 8S EuroFighter-Bronze Tiger, A-10 Arctic, F18 Canadian & Tiger Meet, 8S F16 Wild Weasel, 8S F4 Jolly Rodgers & Blue Angel, 1600 Corsair & Spitfire, B-24, Stinger 90, Avanti. Extreme Flight-FW-190 Red Tulip, Slick 60, 62" Extra 300, 62" MXS Heavy Metal, 62" Edge Demonstrator. FMS-SU-30,1700mm P-51, Corsair, Viper, Beast Bi-Plane 60", P2 Bi-Plane, P51.
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Originally posted by Hugh Wiedman View Post
A wing fence prevents the air from flowing sideways and keeps it flowing across a wing (in stall conditions). The location of the wing fence on the Avanti will keep the air flow going across the outside of the wing (and directly over the ailerons) in a stall condition helping maintain aileron control in a stall. Does it help in this model? I believe it does as it is almost impossible to stall the Avanti, in my experience, but when it does (flying at a snails pace), I noticed it still maintains aileron authority. Try flying extremely slow in a high alpha position with this Avanti, the first time I did, I was amazed at how slow it could go while still allowing you to keep the wings level with the ailerons all the while the nose is up at a 35 degree angle. I think without them, it would be almost impossible to keep the wing tips level, but that's just my thoughts. If you just fly around normally, then the wing fences won't do anything for you. And if you decide to install them, I don't seem to remember having to cut any grooves into the wings, they were already there on the red Avanti I got when the red one first came out.
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[QUOTE=Chilly Bear;n270232]I'm looking for some clarity on the wing fences. Do they or don't they improve flight characteristics? They are fugly ... [\QUOTE]
I have flown both with and without them. To me they seemed to improve flight noticeably. The main difference is that it can really slow down to a crawl on landing and stay perfectly stable. They also improve knife-edge a little. But the main difference is slow flight. I was also ambivalent about adding them, but now I really like them, and in fact hunted down wing fences mail-order from China for my 105mm HSD Super Viper.
You mentioned you don't like the material - I suppose they could be sanded and painted, covered with epoxy paint, etc. I agree they are funny looking, but I got used to it. Another thing I like is that I can throw it in the truck with the gear up and the weight isn't resting on the aileron linkages (and sliding around, banging back and forth with every turn, etc.)
Also I noticed you cited the manual above - I have owned an early yellow one, and it did not have slots for the wing fences pre-cut, so I had to cut them as shown there. However, I got a later red one and it did have the slots pre-cut. So there are two wing types in circulation. I don't know if all new ones have the slots pre-cut. It is not easy to get them perfectly lined up without the slots - measure carefully if yours doesn't have the slots.
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Originally posted by LuckyArmpit View PostJust bought one, red color. Says to use between 5000 and 6000 packs. Is there enough room under canopy to move batt pack forward and back? I am finding all my EDF’s like the rear CG. I fly off grass runway.
Most of you guys using the 6000 packs?
DaveHugh "Wildman" Wiedman
Hangar: Mig 29 "Cobra", 8S EuroFighter-Bronze Tiger, A-10 Arctic, F18 Canadian & Tiger Meet, 8S F16 Wild Weasel, 8S F4 Jolly Rodgers & Blue Angel, 1600 Corsair & Spitfire, B-24, Stinger 90, Avanti. Extreme Flight-FW-190 Red Tulip, Slick 60, 62" Extra 300, 62" MXS Heavy Metal, 62" Edge Demonstrator. FMS-SU-30,1700mm P-51, Corsair, Viper, Beast Bi-Plane 60", P2 Bi-Plane, P51.
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Originally posted by LuckyArmpit View PostJust bought one, red color. Says to use between 5000 and 6000 packs. Is there enough room under canopy to move batt pack forward and back? I am finding all my EDF’s like the rear CG. I fly off grass runway.
Most of you guys using the 6000 packs?
Dave
fly off grass as well
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I always thought that an EDF was not in the cards for me, they were too fast for my 66 year old eyes and reflexes and we have a grass field. All I can say is I am having a ball this summer with my Avanti. I have attached a video of the slow flying capabilities and grass field operations of this plane for anyone else who may be debating it.......
https://www.youtube.com/watch?v=Aw46...ature=youtu.be
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Originally posted by mirion View PostI always thought that an EDF was not in the cards for me, they were too fast for my 66 year old eyes and reflexes and we have a grass field. All I can say is I am having a ball this summer with my Avanti. I have attached a video of the slow flying capabilities and grass field operations of this plane for anyone else who may be debating it.......
https://www.youtube.com/watch?v=Aw46...ature=youtu.be
BTW, nice looking field. Where in Michigan is that. Lived in Traverse City many years and still have family on the farms in Manchester and Clinton. Seeing that location brings back fond memories of summers in Michigan!Hugh "Wildman" Wiedman
Hangar: Mig 29 "Cobra", 8S EuroFighter-Bronze Tiger, A-10 Arctic, F18 Canadian & Tiger Meet, 8S F16 Wild Weasel, 8S F4 Jolly Rodgers & Blue Angel, 1600 Corsair & Spitfire, B-24, Stinger 90, Avanti. Extreme Flight-FW-190 Red Tulip, Slick 60, 62" Extra 300, 62" MXS Heavy Metal, 62" Edge Demonstrator. FMS-SU-30,1700mm P-51, Corsair, Viper, Beast Bi-Plane 60", P2 Bi-Plane, P51.
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