The good news is that my Hangar 9 Sopwtihfits in my new car. I traded in my Lexus IS 350 for a more economical, and while smaller, roomier Lexus CT200h. Now I don't need to borrow my wife's crossover anytime I want to fly more than one plane, and driving to the field doesn't cost me $10 in gas. I actually like this car better than my IS, and I loved my IS.
Its a tight fit, but it works! I was able to get my Eflite Pulse XT25e, my Electrifly Cosmic Wind, my two PDYSysytems carriers, my battery charger box, and my radio box all in there. Very nice!
The bad news is she still flies like a pig... She took off from the middle of the field and this time rolled left despite full right aileron and then right rudder, and back into the ground. She bent her motor mount, broke her prop, cracked the cowl, knocked a piece of the mock motor out, and broke her wing. When the wing twisted, the wires snapped, again. Looks like I lost a turnbuckle to boot. Vinsen was there and he echoed my concerns since the first flight, that the motor is not powerful enough. She has a 14x8 prop, lifts off, but doesn't seem capable of controlled flight, just waffles. I ordered a true 60 size motor from Heads Up RC. The plane is stock recommended for an Elite 46, which my installed HURC 4260-06 motor is a replacement for. Many builders have done fine with the Elite 46, but most are recommending steppjng up. Since her power has been bothering me, I opted to buy aHURC 5065-04 motor, which is equivalent to a true 60 size motor. I also purchased a Hobbywing C-Platinum 100A ESC, to upgrade from the installed 70A ESC. I wonder if I should step up from the 14x8 prop? This motor has a lower KV, but I am also going to ramp up to 6S from the 4S I had tried. My fear is she will just crash harder...
The flying monkeys got me...
Helis, Fixed Wing, RC Sailing
AMA 957918
Pirate Kid Skeleton by RadDezigns.
Monday, December 19, 2011
Sunday, December 18, 2011
Thunder Tiger eHawk 1500
Yesterday was a marginal day flying at BMF. Very windy, which limited our flying. I did take the Hobby King ASK2100 up. We know how she flew last time we tried that.
I flew her a couple of times... but she hated the winds. Her wings flexed and bent in flight, her tail twisted, and she was a bucking bronco between being carried by gusts to following her own lead when her control surfaces twisted in flight. It wasn't any fun, and every flight ended in a tip stall. I gave the controls to Paul Minnick. Immediately after launching her she kited up and backwards, then flipped nose down as she shot over the pits. He cut power to avoid the pits, clearly having no control over her, and she simply drove herself into the ground. He felt awful, I felt it was inevitable. She was a terrible aircraft. So I removed the receiver and gave all her parts to Greg Reed, who loves a challenge.
I still love my Diamond 2500, but I am done with foamy gliders. I need a new glider, less than 2 meters, power, and not foam, for a low price. I like T-tails, but that means fiberglass (or heavy foam like the Diamond), but I also like V-tails. I found this Thunder Tiger eHawk 1500 at Tower Hobbies for a very reasonable price. I couldn't find any legitimate gripes about her. I watched several vids and liked the way she flies. I will build her stock but want to work on giving her separate aileron servos (don't know why they didn't do that) when I can figure out how to make the cuts in a new servo tray. She needs spoilerons or will be challenging to land at slow speeds. She should get here by the end of the month. Looking forward to her and learning how to program V-tails!
I flew her a couple of times... but she hated the winds. Her wings flexed and bent in flight, her tail twisted, and she was a bucking bronco between being carried by gusts to following her own lead when her control surfaces twisted in flight. It wasn't any fun, and every flight ended in a tip stall. I gave the controls to Paul Minnick. Immediately after launching her she kited up and backwards, then flipped nose down as she shot over the pits. He cut power to avoid the pits, clearly having no control over her, and she simply drove herself into the ground. He felt awful, I felt it was inevitable. She was a terrible aircraft. So I removed the receiver and gave all her parts to Greg Reed, who loves a challenge.
I still love my Diamond 2500, but I am done with foamy gliders. I need a new glider, less than 2 meters, power, and not foam, for a low price. I like T-tails, but that means fiberglass (or heavy foam like the Diamond), but I also like V-tails. I found this Thunder Tiger eHawk 1500 at Tower Hobbies for a very reasonable price. I couldn't find any legitimate gripes about her. I watched several vids and liked the way she flies. I will build her stock but want to work on giving her separate aileron servos (don't know why they didn't do that) when I can figure out how to make the cuts in a new servo tray. She needs spoilerons or will be challenging to land at slow speeds. She should get here by the end of the month. Looking forward to her and learning how to program V-tails!
Friday, December 16, 2011
Waffly Warthog
Took the A-10 Warthog up yesterday. She really didn't have enough thrust to takeoff from grass without a good head wind. She rolled fine on her big wheels, but she just didn't have the thrust. I did manage to takeoff once into a gust, but otherwise I hand launched her.
The pic in the manual that sets the CG at 80mm from the tip of the pylon is incorrect, as one might imagine. I set it about a third back from the leading edge, which put it over the spar, and it was spot on. I had set my low rates for elevator at 50% with 25% expo. She porpoised a lot, so I ended up setting it at 35% and it settled down. Elevator authority is no problem! She is marginally powered with the two 64mm fans on a 3S. She has 40amp ESCs, so she could handle a 4S, but I would have to chisel EPO, and I don't know if the extra weight would bog her down more than the 4S would improve her power. She hand launched easily, but her size and power require she be launched by a flying buddy. Once she waffles up to speed and is truly airborne she flies fine. She is no speed demon, but she is quick. She trimmed out easy, and once I got her elevator expo set she flew quite stably. On landing with power off she loves to float, and her gentle stall behaviors let her come down nicely.
I did have problems with the retracts. They bind, and it took some surgeries on the case to resolve that. The cheap stock servos on the mains burned out, one yesterday, and another today. I replaced them with Tower Pro SG-90mgs. Yesterday's went in no problem, but today's was "reversed" so the left main was out of sync with the nose and right main. The servo was moving correctly, but the installation would not let me put it in "backwards" to get it in sync. I don't know why this servo was different than the stock one, but it is, even though its installed the same. I ended up getting a servo reverser, and its all set now. I didn't get to fly her today due to this retract issue...
Tomorrow I hope to take her out and see if I can takeoff from the ground. Hopefully the grass will be cut before then so I can get her rolling!
The pic in the manual that sets the CG at 80mm from the tip of the pylon is incorrect, as one might imagine. I set it about a third back from the leading edge, which put it over the spar, and it was spot on. I had set my low rates for elevator at 50% with 25% expo. She porpoised a lot, so I ended up setting it at 35% and it settled down. Elevator authority is no problem! She is marginally powered with the two 64mm fans on a 3S. She has 40amp ESCs, so she could handle a 4S, but I would have to chisel EPO, and I don't know if the extra weight would bog her down more than the 4S would improve her power. She hand launched easily, but her size and power require she be launched by a flying buddy. Once she waffles up to speed and is truly airborne she flies fine. She is no speed demon, but she is quick. She trimmed out easy, and once I got her elevator expo set she flew quite stably. On landing with power off she loves to float, and her gentle stall behaviors let her come down nicely.
I did have problems with the retracts. They bind, and it took some surgeries on the case to resolve that. The cheap stock servos on the mains burned out, one yesterday, and another today. I replaced them with Tower Pro SG-90mgs. Yesterday's went in no problem, but today's was "reversed" so the left main was out of sync with the nose and right main. The servo was moving correctly, but the installation would not let me put it in "backwards" to get it in sync. I don't know why this servo was different than the stock one, but it is, even though its installed the same. I ended up getting a servo reverser, and its all set now. I didn't get to fly her today due to this retract issue...
Tomorrow I hope to take her out and see if I can takeoff from the ground. Hopefully the grass will be cut before then so I can get her rolling!
Wednesday, December 14, 2011
BlitzRCWorks A-10 Warthog
Its not like I needed a new plane, but I go this one during the Black Sunday Sale at Bananahobby for less than half the price, in fact, almost a third. Its the BlitzRCWorks A-10 Warthog. I had wanted the camo one, but it was NIS, so I got the Black Lightening one. She is very nice! In set up one of the landing gear retract servos burned out, but the rest of her is working just fine! I didn't blog the build, it was very simple: bolt on the wings, stab, etc. The multiple wires took a bit of time, but that was easy too. Some areas of paint came up with low tack tape so had to be repainted. I set her up with flaperons, and slowed the retracts down to 3 seconds. Her wheels are large enough she should have no trouble with the grass runway at BMF! Looking forward to flying her soon!
Monday, December 5, 2011
Silver on Red
Kenny Chandler suggested a silver prop spinner would look smokin' on the nose of my very red Cosmic Wind, so I ordered one from Maxx Products International (MPI). What do you think?
Before: Red Spinner
After: Silver Spinner
Thursday, December 1, 2011
Physics is consistent, I'll give it that...
Well, yesterday I flew the ASK 2100 power glider, and landed her with the spoilerons with good speed, and she landed sweet with remarkable sink. I am also aware that she will tip stall like crazy. And I know that if you want to tip stall more spectacularly use spoilerons at stall speed. So what did I think would happen if I made my approach at just above stall speed and tripped the spoilerons, especially after I saw her do it twice at altitude while slow flying today. She tip stalled and dropped like a rock right on her nose...
Despite a fairly high speed spinning crash she came away pretty well. The nose is cracked on both sides as can be seen here, with a little foam squish. The motor and motor mount are fine. The long canopy snapped on the foam part. Epoxied everything back together easily. Good as new!
I tried a carbon fiber spar in place of the aluminum spar, which of course had no dihedral. The aircraft flew much better for being lighter and didn't seem affected by the loss of the dihedral. But on flaring for a landing the spar snapped and she dropped to the ground in a semi controlled landing. I put the aluminum spar back on and curiously, she still flew well! Today she flew more stably than she did yesterday. Conditions were much, much calmer. Flew her several times and she was a pleasure! And then I tried to defy physics...
Tomorrow is supposed to be an even better day! I am nervous because I plan to maiden the Hangar 9 Sopwith!
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