Libelle201B's blog View Details
Posted by Libelle201B | Jul 24, 2016 @ 07:47 PM | 895 Views
The Chuperosa was a very popular HL glider from the early mid 90's if I am not mistaken. I aquired a partially built one from a fellow flier a while back. Parts of it ie the tail surfaces became part of my Chupacabra, an ad hoc hand launch glider I designed from parts of other HL gliders, one from Multiplex (the wings) and fuselage from Brian Agnew's Vertigo design, it flies very well. What was remaining was the fuselage of the Chuperosa and it's partially finished wings. So, I have decided to build a light weight and simple sloper for light lift conditions using the Chuperosa fuselage which is also of built up construction ie light.
Posted by Libelle201B | Jun 17, 2016 @ 09:12 PM | 1,062 Views
Took the Monterey to the Hill last weekend for its first flight. There was little to no wind with a slight breeze at times. The first flight required some down trim and it was apparent I needed more rudder throw, so after a few short passes I landed the plane. I added a bit of nose weight maybe 3/8 of an ounce and went back on the elevator trim three or four clicks, also moving in one hole on the rudder control horn. The second flight was a blast as I encountered lift soon after launch and circled right on up having to leave the lift several times to keep from getting to high. The Monterey has no spoilers so I was being very careful. The adjustments were just about perfect. It's been a long time since I have flown a larger span rudder/elevator sailplane but like riding a bike it came back to me fairly quickly. The Monterey is fairly light and climbs very well but you have to think a bit ahead while maneuvering as things don't happen as quickly as an aileron equipped sailplane. Overall the Monterey is very stable and beautiful in flight and she didn't display any bad habits, almost certainly why it was my first really successful rc sailplane back in 1971 or so. The landings were very smooth and predictable but the landing pattern will have to be adjusted to compensate for no spoilers i.e. a bit larger and lower than usual if there is no wind. I can't wait to fly her again, this time maybe launching with my up-start if there is little or no wind., saves a lot of walking I should add that way back in 1971 I had not learned how to thermal or even recognize thermal lift so this series of Monterey flights were kind of special.
Posted by Libelle201B | May 22, 2016 @ 01:29 PM | 1,416 Views
Finished covering the wings, next install rc gear, hook up linkages, add tow hook, balance, go flying! May put N numbers on the tail or fuselage, haven't decided yet.
Posted by Libelle201B | May 21, 2016 @ 08:33 PM | 1,797 Views
Major components done, covering under way. Will mirror to the best of my recolection the Monterey I built in 1971 or so, white fuselage with orange wings and tail surfaces.
Posted by Libelle201B | May 08, 2016 @ 11:15 AM | 1,637 Views
Almost done with the fuselage, some delays for various reasons, one being the bulkheads were all supposed to be 1/16" ply, only one was ply, the main leading edge bukhead which was 1/8" ply, not a problem, all the rest were balsa and none of them had the nesessary openings for pushrods or wiring so I had to make new bulkheads out of available 1/8" ply. There were some other minor issues, no material for reenforcing the fuselage under the wing root structure shown on the plans and no hardwood for the tow hook or servo rails. Also after 30+ years the (thin) tinted canopy developed several cracks, one of which is close to the front of the canopy tray and impossible to fix wo showing.
Posted by Libelle201B | Apr 04, 2016 @ 07:30 PM | 2,096 Views
One wing is done now except for wing tip and final wing sanding. I have to admit the Monterey wing structure is a bit different from the many other built up wings I have built since the 1971 or so Monterey. First off there is no lower spruce spar, just the one on top with shear webbing between the ribs of course, also the main wing joiner is located forward of the wing spar, not inside the spar box area as would be expected. Not sure of why but these guys I think knew what they were doing, that is until winches and mega launches for altitude became the norm. Also there are no spoilers, thought about adding them but I'm gonna stick with the original disign. Colors will match those of my first Monterey, solid orange on the wings and tail surfaces with a white fuselage, maybe in some way it will take me back to when I was 16 or 17 years old I'm hoping . The last photo is of the E 387, seems the text is limited. Anyways I have a hand signed computer generated airfoil plot of the E 214 (Windsong) signed by Richard Eppler himself at the first Soaring Jamboree in Richland Washington back in I think 1994, now that's COOL:0
Posted by Libelle201B | Apr 02, 2016 @ 03:00 PM | 2,117 Views
Oops, double post
Posted by Libelle201B | Apr 02, 2016 @ 02:50 PM | 2,080 Views
The wind forcast was 10-20 mph out of the SSW, pretty close but more like 10-15 mph. This wind direction gives us a quartering wind on the slope so you lose quite a bit of slope lift vs 90 degrees not to mention this part of the hill where we fly from is L shaped and somewhat blocked windwise by the part of the hill that extends south for a quarter mile or so with a SW wind direction. Oh well, time to launch and see how she flies. Almost immediatley I noted the plane wanted to bank left so I added right aileron trim until there was no tendancy to bank left, pitch was good with more than enough authority, same with rudder. After a dozen passes or so I landed the plane, I did launch a few more time however. She is very stable and where you point her she goes, inverted flight requires a bit of down elevator as expected but not much. I had taken out a bit of nose weight (1/2 oz) or so during hand launches prior so I put it back in to see what would happen and the directional stability was a bit better, not that is was bad to begin with, but a slight nose down glide ie more speed which is where I will keep the CG. I was surprised how well she flew in fairly light lift and I can't wait to fly her again with more wind. The bank left tendancy is no doubt due to a slight twist in one wing easily corrected by twisting the offending wing tip while taking out the wrinkles with the Monokote iron, the good thing about a built up wing. Hope to have some flying pictures soon
Posted by Libelle201B | Mar 30, 2016 @ 08:49 PM | 2,159 Views
Seems my new Monterey was one of the last versions, not sure when Astro Flight stopped production but it was certainly after I built my first kit. The wing rod seems to be some sort of aluminum and the sleeves for that are carbon fiber, also the wing rod position is now 1/4" back from what the plans call for and where the wing root ribs are drilled for, and I don't remember wing rib gussets on the trailing edge of the wing structure. In any event it's all cool
Posted by Libelle201B | Mar 28, 2016 @ 08:16 PM | 2,383 Views
This was the first RC sailplane model that I learned to fly with, the others before for various reasons never made it to that point, me and my inexperience with rc flight being the prime cause, I taught myself basically. So it's 1970 or 71 and the Monterey is built and ready to fly, I do some hand launches and all is good, flat glide nothing unusual, hook it up to the hi start and lo and behold it goes up perfectly releasing when the hi start parachute disengages, what a moment, lot's of altitude and time to learn how to fly. All of those many early flights were in hindsight pattern flights of sorts, learning how to control the plane, soaring flight came much later.
Posted by Libelle201B | Mar 25, 2016 @ 06:36 PM | 2,386 Views
Went to fly the QB today, the wind forcast was absolutely bogus, 10-15 mph turned out to be 0 mph. Went home and did two hand launches in the front yard, the first was pretty nose down, removed some nose weight and the glide was flatter, control pretty sensitive in roll and pitch. Went back to the plans for CG and noted the instructions called for 65-75mm back from the root leading edge, the forward CG I went with where the plans showed 70mm, so I'm pretty close now to the ideal CG I think. A few flights will decide where the control throws should be
Posted by Libelle201B | Feb 24, 2016 @ 05:45 PM | 2,451 Views
The QB fuselage is almost done now, servo rails, canopy and painting are all that needs to be done. I did decide to paint the fuselage rather than cover it in mono kote so the holes in the tail section were filled with 1/16th balsa which won't make much difference weight wise, it's a sloper after all. The other mod I made was eliminating the rubber band dowels and replacing that setup with a wing alignment dowel at the leading edge of the wing/fuselage and two nylon bolts at the trailing edge of the wing/fuselage.
Posted by Libelle201B | Feb 03, 2016 @ 06:40 PM | 2,731 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 @ 01:57 PM | 3,081 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 @ 01:30 PM | 3,003 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 @ 01:52 PM | 3,039 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 @ 10:10 PM | 3,297 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.