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Posted by Libelle201B | Feb 03, 2016 @ 07:40 PM | 1,373 Views
The QB slope wing build is now 90% finished, adding the forward alignment pin/dowel, drilling the rear attachment holes (2), covering and adding the ailerons and aileron servo is all that needs to be done. Next will be the horizontal and vertical stab with rudder.
Pics to follow.
Posted by Libelle201B | Jan 24, 2016 @ 02:57 PM | 1,722 Views
My new project is the QB-16 (quick build) Pilot slope glider, an incredible find. I have been looking for a Pilot Divine Wind for many years and it seems few if any exist today either built or in kit form. Seems the QB-16 is just an easier/faster build version of the Divine Wind sloper based on the plans I remember seeing as the wing profile/airfoil look identical as do the tail surfaces with the exception of the full flying stab being plank and not built up symetrical. The fuselage seems to be different only in that there is no turtle deck going back from the wing leading edge to the tail as with the Divine Wind, just a box type rear section with the rounded plastic canopy extending back over the forward section of the wing, all the basic aerodynamic dimensions seem to be unchanged. My only mod will be the wing attachment, no dowels and rubber bands, will become a forward alignment dowel and one or two nylon attachment bolts close to the trailing edge. Thought about making this a build thread in the slope forum but who has another QB sloper
More pics to follow.
Posted by Libelle201B | Dec 20, 2015 @ 02:30 PM | 1,633 Views
Really windy at the Pompano Hill yesterday with 20-25 mph winds gusting to over 30 mph my guess, you had to lean a bit forward to stay upright at times. It was also VERY turbulent with the gliders becoming slaves to the wind currents, loss of control for brief moments. In any event the FOX did very well in these conditions and I was surprised by that along with her ability to penetrate into the wind given she isn't heavy by any means. Just for kicks I added about 1/2 ounce or a bit more of lead to the nose to see what effect it would have, pitch stability and tracking improved as I predicted, not that it was bad to begin with but it was noticable. She flies inverted just as well as upright with just a little bit of 'down' elevator meaning the airfoil is not absolutely symetrical, my guess about 1% camber or so. Cruising along inverted with some speed and pushing in full down elevator results in a nice half loop to upright flight. Outside loops are no problem. I'm really happy with my FOX and although she may look a bit 'rough' she flies great!
Posted by Libelle201B | Dec 06, 2015 @ 02:52 PM | 1,741 Views
Perfect wind today, 20 mph or more at times. The FOX flew well as expected although I think there may have been some very minor changes in decalage due to the repairs/damage done to the feuselage ie the mid air. Gone is the main gear with just tape on the foam nose. It was a surprise to get to the beach and find however that the sea grape trees had been drastically trimed, probably 4'-5' cut off which really reduced some of the slope wind effect. They will be allowed to grow back I hope. Due to the lower lift band and choppy air I kept to simple maneuvers. As usual a few folks stopped to watch and ask, 'where is the motor'
Posted by Libelle201B | Nov 28, 2015 @ 11:10 PM | 2,013 Views
We had a quartering wind today so the slope lift wasn't quite as good, but still ok. The Fox flew as expected, very well. The control response was fairly quick in roll and pitch, yaw was more subtle due to the not so large rudder area. Inverted flight needed just a touch of down elevator but was just as predictable as upright flight. Unfortunately the Fox was damaged due to a midair and will need some repair as it no longer has the plastic nose cone or the main wheel which were ripped off. The forward section of fuselage was cracked open slightly at the seam and at the leading edge of the wing, which was easily repaired with 5 minute epoxy and wood glue. I may just cut off the foam nose an inch or so back and replace with balsa. Might take the Fox to the beach for its next slope soaring adventure.
Posted by Libelle201B | Nov 27, 2015 @ 12:19 PM | 1,707 Views
Really excited, the hand launch test flights went perfectly, flew strait as an arrow with about 4 clicks of down elevator to get perfectly flat launches (the elevator was slightly up to begin with). 0-0 incidence was the design. CG seems quite fine, at almost exactly 30% mac with no nose weight needed, gotta love that long nose moment. Off to the Hill tomorrow.
Posted by Libelle201B | Nov 25, 2015 @ 09:18 PM | 1,671 Views
I guess I was wrong in naming my new ad hoc sloper the Taylor "Swift" as it is really the two seat version, the FOX! In any event Taylor Swift is a FOX so I wasn't far off at all She is ready to fly now, no expense was avoided in regards to procrastination and waiting for another day to finish building her, a real shame based on my old days of building sailplanes. Here are the latest pics, nothing fancy, never was supposed to be, just a fun project Plan to fly her this weekend as strong easterly winds are in the forcast. Will be back to give a review.
Posted by Libelle201B | Aug 23, 2015 @ 04:37 PM | 2,460 Views
Not much left to do on the Swift. Being it's kind of unique and my love of beautiful woman I think I'm gonna call her the "Taylor Swift" Also the nose to tail moment is not that far off from being identical, only about 3" given the estimated MAC of the wing, almost control line in nature so I'm sure it's going to be very pitch sensitive, low throw for sure on the elevator to start with, maybe 1/4 inch up/down to begin with.
Posted by Libelle201B | Aug 09, 2015 @ 05:42 PM | 2,596 Views
Like the Chupacabra this one is also a piece of this and a piece of that. Not sure what I'm going to call it yet, but it is a foam Swift fuselage with a balsa foam wing I cut/built long ago, airfoil being very close to symetrical, maybe 1% camber. I will almost certainly make a new balsa stab with a bit more area and adjust the decalage to 0-0. More as things progress.
Posted by Libelle201B | Feb 15, 2015 @ 03:44 PM | 3,783 Views
Added to the original Chupacabra thread for those interested.
Posted by Libelle201B | Jan 01, 2015 @ 07:28 PM | 3,590 Views
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Description: The Vertigo fuselage is on it's side and the Dart wing at it's pre designated location, the moment arm is  more than enough ie 2/3+ the forward moment.If you have been in the hobby long enough you will no doubt have aquired kits or parts of unfinished kits or even the remains of crashed kits, so what do you do with them? Given my inventory of such I have decided to build on a whim the Chupacabra, a RE poly design incotporating three designs, the Chuperosa, Vertigo and the Multiplex Dart, the vertical tail with mods will be from the Chuperosa, the fuselage and horizontal tail will be from the Vertigo and the poly wing from the Dart. If all goes well I will have a cheap fun fly hand launch sailplane that doesn't cost $700+ dollars. Two pics included so far. Will post more pics as the Chupacabra comes to life.
Yesterday the Chupacabra took flight for the first time, and things went very well after a minor cg change (was a bit nose heavy). I also have reduced the rudder throw a bit. The Chupa is very stable and thermals very well. It was quite breezy so the slope was working well along with some very good thermals due to the dry air and heating around 12pm. She also penatrates well into the wind with the SD 7037 airfoil, never had a problem getting back to the hill face with forward stick pressure/trim after drifting down wind. The only down side is she has no spoilers so it takes a bit more time to get down as I had her a speck and far away at times, flying out of the lift is important and I also flew inverted for a bit to accomplish this several times but a spin or very shallow spiral dive (watch the speed) would probably be just as effective. Looking forward to a calmer day to see how she behaves in a pure thermal conditions.
Posted by Libelle201B | Dec 14, 2014 @ 01:56 PM | 4,027 Views
Today was perfect for the Radian and flying, calm to gentle breeze out of the north and fairly cool and dry. Here in FL the summers are very hot, humid and unpleasant, making flying RC and FS gliders a real physical challenge at times, so the autumn and winter months here are a real relief for us. Here in S FL we used to have large open areas where one could roll out a high start or winch and launch their sailplanes pretty much unmolested, but not so anymore, and why I bought the Radian a few years back. Actually it's my second Radian as I lost the first one due to the 2.4 lockout syndrome, this on is on 72 mhz as most but not all my planes are on. The day called for temps in the low 70's and I could see lot's of buzzards circling when I got to the school yard so I knew it was gonna be good flying. There was an inversion as the pictures will show and the soundings verified that at about 3500' msl obviously not an issue, but interesting for those interested. Down low ie tree top height or so the thermals were very tight and a 60 degree bank or more was required to stay in the thermals but as you gained altitude the bank angle could be decreased substantially. The lift wasn't super strong but consistant if you stayed in or near the core and I was able to speck out three or four times drifting down wind at which point I would push the stick forward and get the Radian moving to cover ground as is always needed with any sort of headwind or breeze and looking for the buzzards or...Continue Reading
Posted by Libelle201B | Nov 28, 2014 @ 03:23 PM | 3,555 Views
I bought the Ruby a 2 meter molded sailplane some years ago in the hopes it would be a competetive TD sailplane, not so IMHO as it's a bit heavy and I don't think the airfoil (MH 32) is really suited for slowing down and floating even with a few clicks of camber based on my experiences so far. However it's been a great multi purpose sailplane ie slope/thermal which is perfect for our hill in Pompano Beach FL. Today (Friday) was a perfect example of such as it was quite windy, my guess being 20 mph + with gusts a bit higher. The Ruby LOVES these conditions and combining it with strong thermals is where she really shines. With some down trim she really scoots along and with the strong thermals she climbs well and what is really impressive to me is her ability to penetrate with no ballast in these kinds of winds. With some altitude I was able to penetrate up wind with no problems at all searching for other streeting thermals till I was close to the limits of my aging vision (still pretty good) and even going down wind a bit presented no problems as far as getting back in front of the hill at a safe altitude. Basic aerobatics ie rolls, loops, chandelles, and stall turns (gotta use that rudder) are routine in nature and quite graceful as long as you have adequate airspeed + some altitude. Today for me anyways was one of those days when you discover the potential of a plane you may have felt just so-so about.
Posted by Libelle201B | Nov 08, 2014 @ 06:19 PM | 4,534 Views
My second outing with the KA-8 was much better given the addition of aprox 1/2 oz of lead to the nose before the flight. The addition of nose weight from the first flights and now this later amount has brought the cg closer to 70mm from the leading edge vs the 75mm suggested in the instructions. At this point I think I am at the rearward limit of the cg envelope and could no doubt go farther forward if I wanted. The KA-8 indicates and climbs very well in lift as I had her up quite a ways several times having to use full spoilers with turning slips to keep her from climbing and specking out. There was also slope lift later ie a moderate breeze and she flies well there also. I have found that leading with the rudder just before initiating the bank for turns seems to work well and even some "top" rudder while in the turns creates a flatter turn. (the rudder push rod clevis is in the innermost hole of the control horn, max throw) The landings are very "scale" as the spoilers are not over effective ie slowing the plane down with too much drag and flaring with full spoilers creates a very realistic scale landing. I'm real happy now with the way the KA-8 flies and she flies and looks so scale.
Happy soaring!
Posted by Libelle201B | Oct 19, 2014 @ 04:51 PM | 3,791 Views
Have flown the Banshee twice since it's maiden flight and the only mods have been taking small increments of lead out of the nose which now duplicates the cg recomended by the designer Brian Agnew ie 4" and 7/8" ahead of the TE. In this configuration she's a real climber as I found myself well below hill top several times and recognising some hint of lift I entered a tight turn/circle which resulted in a very recognisable height increase which allowed me to seek another thermal.
Posted by Libelle201B | Sep 21, 2014 @ 03:13 PM | 3,714 Views
Well, for anyone following this blog, the Banshee has flown it's maiden flight at our hill in Pompano Beach, FL. The wind was marginal at times and often at 45 degrees to the slope with virtually no thermal lift at all. The launch was completely uneventful and other than two or three clicks of aileron (roll) trim it flew exactly as I expected, quite different from my ParkZone Ka-8 experiences a weekend earlier. I set it up exactly to the instructions ie CG, control throws etc with the exception of flap throw which I set at about 50 degrees or so. Given the conditions I was still able to keep the Banshee airborn although at times just a wingspan or less above terra firma. As the morning progressed so did the wind and thermal activity. No doubt I will make some small adjustments to suit my flying style in the next few flights, particularly for thermal conditions and not wind related slope flying. I still have my 15+ year old Hobby Lobby (red rubber) hi start that has many hundreds of launches to it's credit
Posted by Libelle201B | Sep 14, 2014 @ 01:48 PM | 4,461 Views
Got the Ka-8 together (pics) and here are my thoughts on the first 3 flights (aprox 30 minutes of flying). The first flight required a fair amount of down elevator to keep it flying so after a pass or two on the hill I brought it in for a landing. Looking at the elevator/stab there was about 1/4 inch down trim deflection in the elevator due to the trim change. (cg was at the designated location per plans) I added about 1/2 ounce of lead to the nose and brought the trim up 3 or four clicks. The second launch was quite different with the plane going immediatly into a shallow dive and pulling back on the elavator to counter the shallow dive sent the plane into a sereies of very serious PIO's (pilot induced occilations) with the outer wings flexing to the max. After what seemed like an eternity I got the plane flying again with low rates stitched on but it still had a tendancy to dive so more and more back trim to compensate. Eventually with some effort I got to a decent altitude and some breathing room. More back trim eventually produced the flying characteristics one would expect and things settled down considerably. What I did note is that for some reason if this plane starts flying much above a slow glide ie a fast glide it wants to tuck under and literally go into a self imposed death dive. The only thing I can figure out is that as the airspeed increases and the AOA (angle of attack) decreases the outer wingtips are twisting downwards at the leading edges forcing the plane...Continue Reading
Posted by Libelle201B | Sep 14, 2014 @ 12:20 PM | 4,200 Views
Here are three pics of a classic sea breeze front often found along coastlines where the warmer land air comes into contact with the cooler (heavier) air of the ocean or water mass. These fronts can extend for many many miles and are very well defined. Soaring along these fronts will take you a long ways, unfortunately in S FL you would have to deal with Class C and B airspace and you would be traveling just above highly populated areas.
Posted by Libelle201B | Jun 29, 2014 @ 11:05 AM | 4,404 Views
Still working on my Brian Agnew Banshee 2 meter TD contest sailplane. I remember flying Brian's personal Banshee way back in the late 80's I thing and it fit me like a glove. Back then 2 meter was still very popular in the contest circuit here in FL with lot's of 2 meter kits to pick from. The Banshee is a real beauty and I was able to find one NIB in the "classified" section of RCG. It takes me much longer now to finish a kit than in the past when I would have one ready to fly in a matter of weeks or a month or so max. Based on my procrastination I "hope" to have it in the air in a few months.