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Hi guys,
Precision Aerobatics Team wishes you a merry Christmas and a fantastic new year. We prepared a special treat for you – so if you ever wondered how Santa torque rolls – check out this short video http://www.precisionaerobatics.com/v...o%20xmas08.mov Dave, Matt - absolutely brilliant! Precision Aerobatics Team www.PrecisionAerobatics.com |
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North Carolina
Joined Sep 2003
1,961 Posts
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The only thing these two airframes have in common is that they are both Ultimates by name. There is no other comparison at all. The E-Flight is no where near the kind of airframe as the PA. The PA is light years ahead of the EF.
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Renton, Wa.
Joined Feb 2006
1,440 Posts
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Steve |
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Well yesterday was the only day this week that was to have a break in the rain and low winds, so I worked my butt off all Friday (until 2:30am) to finish it. Got everything finished except cutting out the spinner as I didn't want to wake the family up using the dremel tool.
My setup was the Thrust 40, TP Extreme V2 2200 3S1P, Turnigy Plush 60A ESC (which will be replaced by my defective CC 45 when I get it back), APC 14x7, HS-65MGs in the tail and HS-65 HBs in the ailerons. The plane came out to 40.1oz (1137grams). My first flight I had the CG pretty far forward and I noticed that it took some work to get the nose up and keep it there. There was also some rock in the upright harrier, but inverted it was perfectly smooth. As I move the CG back in small increments over the first 5 flights, I noticed that the harriers rocking smoothed out dramatically. I could also maintain a higher alpha harrier without it wanting to drop a wing. Of all of the larger bipes I have flown, this easily does the best harrier of the bunch. It also is the easiest to harrier. By the end of the day I was confident enough in it to start doing some low hovers and torque rolls. Really that’s one of the best features of this bipe with those short wings and that big 14x7 prop, it really does a nice torque roll. The other features that make bipes fun is the end over end maneuvers such as waterfalls and knife edge spins. Even with my CG forward on the first flight, it would do the tightest knife edge spin I have ever done. With the CG back, it was crazy tight and fast. Tumbling was also impressive, but this plane needs a bit more power to knock of my Velox on a 4s system as the king of tumbling. The short fuse length also allows AMR to do some wicked flat spins. It needs quite a bit of countering aileron throws to keep it from rolling out of the flat spin, but they are really tight and was one of the moves that really wowed the crowd. I put the plane through quite a few blenders and everything held together. The rolls were fast and the snaps hard and it flattened out nicely at the end of the blender The PA Ultimate like most bipes has major coupling issues in a knife edge that have to be mixed out. 2 different mixes were needed to get rid of roll and elevator coupling in a knife edge, but once that was done, it held the KE cleanly. The rudder had plenty of authority to keep the nose up or pull it into a nice looking knife edge loop. As I moved the CG back each flight I noticed my knife edge mixes had to be adjusted as well, so once I find the spot I like best, I probably won't move it again. Power on the thrust 40 with a 14x7 and 3s1p 2200 25C pack was good, but not amazing. Don't expect the same power you see with the Torque 2814 or Reaper GR45 on 4S packs, but it’s definitely on par with those motors on 3s setups. I have yet to set it up on my thrust meter, but its feels like it’s around 1.25 to 1.5 power to weight ratio. It has decent pullout power from a hover and for unlimited climbs. As I mentioned earlier, this plane has a lower top speed then a plane like the Velox because of its 3s setup and more airframe drag, so the tumbles are no where near as hard as the Velox. On a 4s setup, I think the AMR would do wicked tumbles. So this brings me to my biggest gripe about this plane and that is the battery tray and the major pain that it is to get the battery in and out. First off, the space between the tray and the cross supports on the fuse leave ZERO space for anything larger than a standard 3S pack. Actually fatter 3S packs won't even fit and 4S packs are completely out of the question. My Zippy-R 3S 2200 packs rub against the cross supports when they are inserted, the TP Extreme packs have maybe a 1mm of clearance and my older loongmax packs wouldn’t even fit. To get the packs in you have to twist them in between 2 cross supports and slide them forward along the tray. If you have Velcro on the tray you won’t be able to slide the battery in to place. I ended up using 2 tiny squares of Velcro on the tray, just to stop the battery from moving forward and back, but allowed the battery to be pushed easily over them. I also used a Velcro strap to wrap the battery to the battery tray. I found that the battery didn't move at all during my 5 flights. Aside from the battery tray, the rest of the construction of the plane is top notch like most PA products. All of the pieces fit perfectly and the build time was about 7 hours. My covering was smooth and I didn't encounter any warps in the wings or stabilizers. This plane has a lot of small pieces that have to fit in a very exact manor and everything was perfect. I have to give PA props for also having a great tinted canopy. They have the strongest oversized magnets in the rear of the canopy and I can't see this blowing off. Actually it almost makes it a bit hard to get the canopy off because they are so strong. It’s not quite as good as a canopy latch, but it’s the next best thing. I would like to recommend that PA start adding a extra parts package with their planes as its way to easy to lose one of the small bolts or screws and have your construction come to a grinding halt as you have to make a trip to the hobby store. So based on my first 5 flights, I have to say I'm very impressed with this plane. It flies great, even with the biplane quirks; it has solid 3D performance and good construction. It is also one of the best looking planes I have seen in a while (Yellow all of way!). Matt |
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Latest blog entry: More FPV flying! Checking out a couple...
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Matt |
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http://www.precisionaerobatics.com/v...0xmas%2008.mov
I can view it when I go to the site...strange! Sounds like a plan Matt! But yeah it will be a while...7 days of rain stinks!! |
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Latest blog entry: More FPV flying! Checking out a couple...
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