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Joined: 9/3/2002 From: Burlington, NC, USA Status: offline
workin on a wee stick myself this weekend...hey PT you gonna kit this thing? or have you already?..and why do you have 800 electric motors? if you did, (kit it) send an extra one back with Vic or Ray for me and send me a bill...Rog
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Ever walk into a room and forget what you went in for?...ADHD, welcome to my world,it happens everyday!
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Joined: 2/10/2002 From: Just a little south of Raleigh,
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Patrick,
Oops, The correct spelling is 'Aloysius'. I don't know how I got that wrong. Where is spell-chack when you need it?
But, you ARE right that is NOT my middle name. I'm really known in these hyar parts as, HoSwmbo, which is just about as good as a middle name when chow time comes 'round. Anybody who remembers 'Rupmole of the Bailey' or saw 'King Solomon's Mines' will recognize 'Swmbo'. Once you get that far you'll easily grasp the 'Ho'.
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Joined: 11/22/2003 From: arlington,
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I got my BLINK going today as promised and took it out to the proving grounds. I was pretty confident that I had spotted the trouble that caused it to crash on the maiden, a couple of weeks ago, one of the HS 55s would go into convulsions if you touched the output shaft. This would make 3 out of the 8 HS 55s that I got from SERVO CITY from that big sale, bad already . Anyway, back to todays' efforts. I had a stock TD with a 5x3 running pretty good, which made for an effortless launch. Once the plane got out a couple of hundred feet, it went nuts and corkscrewed in to the mud. What gives? I took the antenna out of the wing, it had been buried in there, loop style, and just let it dangle straight back. Nothing at all happened to the plane, just an engine full of dirt. One can of brake cleaner later, the engine is dooshed out, but I think the chemicals softened the carb housing.....DOH!! I CA'd the carb, NV, venturi down and went for another try. This time the plane handled very well throughout the entire flight. I had the throws turned way down, so all it could do was slow rolls and lazy loops. The plane was in a nice groove for lazy pylon laps, but would try to snap roll out of a tight turn. I was having a lot of fun with the new toy and showing a passerby some stunts, when suddenly it cork screwed in again. Post mortem inspection shows another bad servo, this one is totally dead, it don't move at all. The plane is still completely unscathed, just muddy. Do you think I am anxious to try the contest plane out with this same batch of SERVO CITY HS-55s? I wonder how SERVO CITY would respond if I tell them what's going on? I'm sure several of us took part in that same sale, it was sometime before Thanksgiving if I remember right. Has anyone else had similar trouble?
The plane looks like a tired old dog of 100 flights now, but actually it is pretty amazing to think that it has gone in at 70 mph 3 times and just needed a firewall replaced after crash #1.
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cp: You don't think it is a design problem do you. Maybe we should "work" on that pt design so it won't be a "servo-eater". That mean old Blink is picking on those poor, little old HS-55 servos. And what is with the cork screw? Didn't he design in some hands off, in an emergency, stable flight correctors? Maybe we should ask for our money back? Oh, that's right, I haven't paid him yet!
It drizzled with winds in the 15-25mph range today. We got in a few hours of club field work, but that is all. Weather tomorrow is forecasted to be the same. Maybe my Blink will get some air time this week. Also, trying to get in a flight on the Dragonfly equppied with an 061AME.
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The last crash looked very cool, because the failed servo went to full deflection, and the plane did 10-20 rolls about 20 feet above the ground before going in........this servo deal burns me up cuz I thought I was set for awhile, maybe even enough to make it through the summer? Heck, it's not even spring yet... ! It really inpressed the spectator to see the plane come back in one piece, he figured it was toast. I think it is possible that vibration is killing these servos, I'm not imposing big loads on them that other batches of HS 55s couldn't handle for a reasonable time.
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Joined: 9/3/2002 From: Burlington, NC, USA Status: offline
Too bad about the servos CP, that does sound bad, that many of them..I only bought batteries and switches myself , but any failure in the air switch,battery,servo would have the same disasterous effect ...Rog
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Ever walk into a room and forget what you went in for?...ADHD, welcome to my world,it happens everyday!
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Joined: 1/9/2003 From: santa cruz,
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Hi CP.... You may have hit the head on the nail with a diagnosis of Excess Vibrasis. The '55 is Grommete-less isn't it. I havn't screwed in servo in for a while ... been using servo tape (carpet tape accually) or RTV or Z-56. I wonder if you used a piece of old inner tube for washers if you might solve the prob.
< Message edited by skaliwag -- 2/13/2006 3:18:48 AM >
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Yes, it sure is worth a try! .00001 cents worth of rubber VS burning up servos and toy planes, not to mention dumping a $3 can of brake cleaner into the engine after it eats dirt, and all the emotional trauma it causes......
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Joined: 2/21/2004 From: St. Simons Island,
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Just got in from test flights on Blink. First flight was with a 6X3 prop and the GB. The little delta flew out of my hand and had unlimited vertical, good pitch and roll, and tracked well. Good little flyer. One problem experienced when landing. The GB overflow extends below the firewall. With our club's fabric runway, the overflow dug in during landing and stopped the Blink cold! It looked like an arrested landing. No damage. Second flight was with a 5.7X3 APC. The GB liked that prop better and the little delta was a little faster. Guesstimated speed range was 70-80mph for both props. It was comfortable flyer with the GB and probably be good with a product engine. Note that when it is edge on, it is hard to see. It is not the kind of plane you want to fly too far from you. Probably want to keep it within 300-350 feet.
Will probably reconfigure to a KB and test fly again.
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Joined: 2/21/2004 From: St. Simons Island,
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cp: Believe or not, I am using the Futaba S3108s with micro connectors. In fact, this is the same flight pack that our club pres had in his Killer Buzz when one of the elevator arms failed. I changed the light weight Futaba arms for the new Dubro micro servo arms which are long and sturdy. They are good and make great replacement arms for the Futaba and Hitec micro servos.
pt: Wish I knew you were home. It was a pretty good day to be flying though it got a little windy around 3pm.
Printable Version
All Forums >> RC Airplanes >> "1/2 A" & "1/8 A" airplanes >> RE: Blink - PT's 7oz Racer 
RE: Blink - PT's 7oz Racer - 
. Anyway, back to todays' efforts. I had a stock TD with a 5x3 running pretty good, which made for an effortless launch. Once the plane got out a couple of hundred feet, it went nuts and corkscrewed in to the mud. What gives? I took the antenna out of the wing, it had been buried in there, loop style, and just let it dangle straight back. Nothing at all happened to the plane, just an engine full of dirt. One can of brake cleaner later, the engine is dooshed out, but I think the chemicals softened the carb housing.....DOH!! I CA'd the carb, NV, venturi down and went for another try. This time the plane handled very well throughout the entire flight. I had the throws turned way down, so all it could do was slow rolls and lazy loops. The plane was in a nice groove for lazy pylon laps, but would try to snap roll out of a tight turn. I was having a lot of fun with the new toy and showing a passerby some stunts, when suddenly it cork screwed in again. Post mortem inspection shows another 
Thankfully, I just bought 
Maybe we should "work" on that pt design so it won't be a "servo-eater". That mean old Blink is picking on those poor, little old 
! It really inpressed the spectator to see the plane come back in one piece, he figured it was toast. I think it is possible that vibration is killing these servos, I'm not imposing big loads on them that other batches of HS 55s couldn't handle for a reasonable time.
metal gears and all. GWS all the way these days. I'm gonna get one of these little dudes eventually. 
