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Posted by droydx | Jan 02, 2014 @ 02:43 PM | 1,610 Views
I posted this one on the slope site. I see these old kits pop up every once in a while. Not many get built though.....

That's too bad, they are fun fliers and an easy build.

http://www.rcgroups.com/forums/showthread.php?t=2065798
Posted by droydx | Mar 19, 2013 @ 09:40 AM | 2,620 Views
I had a hankerin' to build an old school balsa/foam wing ship, so I drug this one off the shelf. It was a fast build....simple box construction using the unique 1/2 side build at a time and then join, to make the fuse straight.

It flies very well, and is relatively quick, could use some ballast to speed it up. I kept it really simple with only 2 servos total...so no wing mixing, but that's the way we flew them. Looks great in the air with the swept wings and high all flying horizontal stab.

The wing cores with the kit were trash (see pics), so I cut my own out of blue foam. S 6062 at the root transitioning to to 6060 at the tip.

I'm a big fan of Jack Caldwells designs. He was active in the 1980's and came up with the Swift, the AR-1 (kitted by Craftaire, then Dynaflight, as the Freedom, the X-Cell and then this one the Mini Xcell. This kit was produced by Swenson Specialties from Pinole, CA. in the early 1990's..I haven't seen many on the market so it is relatively obscure.

Andy
Posted by droydx | May 05, 2012 @ 11:12 AM | 2,962 Views
I cranked out an Evo Alula for the WF 2012 this year..Michael has put so much thought into these kits that they just about put themselves together! I used one of his 300mah battery packs and a set of Futaba 3114 servos, along with a FAST Futaba 2.4 receiver. I could've pulled the case to save a couple grams, but left it on, thinking it would add some strength to the nose area in case of a punt. AUW is at 6.5 oz and it flies great, as all the Dreamflight products have.



Next up is the Prodij HM. I got this one through Tom Copp at F3x. A definite upgrade from the earlier versions..this one is sweet, for those who enjoy something different in the 60" class. I posted my build in: http://www.rcgroups.com/forums/showthread.php?t=1614447

First flights were extremely promising...at 26 oz it even thermaled very well, and has room for 14 oz of ballast, so it should move out when the lift builds. The airfoil is super thin at 7.5% and the moving wing surfaces are huge at around 30% of wing chord, so active camber changing is just about mandatory. I'll still need to do a lot of fine tuning on the set up, but I think that it's a winner and if it holds up as well as the earlier versions then it deserves some recognition, despite it's higher entry cost.
Posted by droydx | Jan 16, 2012 @ 10:23 PM | 3,532 Views
I bought this one off of agarchitect. Adam trucked it down to me, the one piece 110 " wing on top of his car, like a surfboard! Well, it took some work but is now complete and ready to fly. It came in at 84 oz, dry. I used a pallet to mount the V tail servos, like a Legerton kit for an Opus, because there is no nose cone, it is solid up front. There is room to hold about another pound of lead, using the Opus sheet lead plates if needed.

I had to redo the wing mount, area so it would slide off instead of ripping the fuselage in case of a bad landing, this amounted to making small fairings on the wing, counter sinking the wing bolts, upgrading the front bolt to a 1/4-20 I enlarged the rear control surfaces a bit, to just look a little more normal to my way of thinking. Made a wing harness, and got it all wired up. I layed up some servo covers and thats about it. The wing is huge, has a lot of surface area, so it should hold the weight really well. I had to surface the wings and do a lot of sanding because the vac bag job done by the original builder (Tom Roberts?) had a lot of waves, probably due to uneven vacuum along the pull. Anyway, it is still pretty badass looking, and should be a blast for hauling around the upper ruins, not a lot of $ for a lot of sailplane!

Thanks Adam!
Posted by droydx | Sep 18, 2011 @ 12:20 PM | 3,994 Views
This was one of my slowest ever builds... I literally started it at the end of March and finally cleared it off my bench last week. Sometimes you just poop out on the build, and I did with this one, when I realized that I wasn't going to be able to go the the ISR PSS slopefest last May.

Anyway, a lot has been written about these, and the man himself has the best threads on building one of these:

http://www.rcgroups.com/forums/showt...spitfire+cores

All I had to work with was a fuselage that I bought off RCGroups from BillL. This was a very lightweight fuselage, which attracted me, because I wanted to build one with a shorter wingspan and lighter AUW to hopefully be able to fly it at other places than Fermin!

I had to scratch all the other parts, cut the elliptical wings, etc. The fuselage was in one piece, but need to have the vert. stab joined. I was able to fit a nice tail stiffner, and have a nice 1/4" plywood nose tray that holds the servos. This is a simple two servo ship, with the elevator driven by carbon pushrod...standard PSS fare. I cut the wing as per Russ' description, so it starts as an RG14 at 7.5% in the wing and tip areas, but is actually fatter in the middle of the chord...that went well using Russ' tips. I went with balsa skins and a thick basswood LE, to get the right curves was a real bear, and took a lot of hard hand work...whew, many hours of carving and matching. The wing covering is silver solartex fabric.

After putting it all together, painted it all and it came in at 53 oz with a 48" wingspan...it looks more scale than usual...the lines on this Spitfire are very cool.

Thanks BillL, and SlopeIron
Posted by droydx | Mar 30, 2011 @ 02:33 PM | 4,497 Views
Update on my Mark Grand Shredder slope pitcheron:
Well she was fun while she lasted. Unfortunately, she didn't last long....

Pitcherons with wingspans longer than 60" are tough to land at my usual flying site. It's really tough to bleed off the energy needed to turn and land in the usual saddle area. I made things tougher by loading the ballast in and then having not flown in about 6 weeks....
The Shredder looked to be going slow enough, but when I went to turn her back to the wind, she no turned..... although going slow, she touched down a wingtip on the backside and promptly shredded... well maybe that's why it is so named...the entire tailboom. The break was clean, and very complete, just ahead of the TE of the wing. A bent wing rod, showed that the wing tip strike had imparted energy to the fuselage side, and the consequent rotation of the ship whipped the fuselage clean in half. A few more layers of glass, some kevlar, carbon wouldve been helpful, but hey....I knew the risk when I flew it. Anyway, the wings and tails are in super shape, I just may recycle them a little shorter on a new Samurai fuselage that I have!
Posted by droydx | Feb 15, 2011 @ 09:33 PM | 4,999 Views
I just picked up one of these off the RC Groups for sale board. What a great kit! This is a 60" V tail, with foam core pre sheeted wings with obechi and a carbon fiber leading edge...super clean work The wing plan form is pretty old school, single taper RG 15 and pretty chordy, lots of square inches. It should take ballast well. The fuselage is awesome, heavy epoxy layup, nicely reinforced, with a slip on nose cone all with flawless white gel coat. Mr Stevens knew what he was doing here.

I hear these turn well, and are relatively fast...now I just have to figure out how to finish up the wing..maybe light glass or low temp covering?

I think what I like about this ship so much is that it is so simple, and so easy to build because of the amount of prefabrication that it is in line with keeping the hobby fun...which is something that can be lost when you start working on $1000.00 molded ships.....

Will post some pictures soon.

Andy
Posted by droydx | Nov 10, 2010 @ 10:43 AM | 6,442 Views
I just finished up this wood kit...all CAD and an extremely cool design with a lot of thought. Anyone who likes to build should get one of these kits, they are so different in approach and require some careful assembly. Its a 4 servo wingeron, so wing panels move for aileron/roll control, and you have ruddervator V tail for pitch and yaw control.

If you go about the build carefully, and follow the very detailed instructions, you should get a great looking model. I still have to do the final CG and set up, but should be flying this weekend.

Good job Kevin, thanks for the fun build!


Andy
Posted by droydx | Jun 10, 2010 @ 10:14 PM | 6,675 Views
Well I got the plans about 2 -3 years ago from Reed. Ended up buying a Jart LT from him, flew it a couple times, then took a mold off the fuselage for my kit. I ended up giving the LT away to a local sloper who lost his planes in one of our recent wildfires. I layed up a pretty nice fuselage off that mold about a year ago, and now finally got around to cutting the foam cores for the wing and horizontal stab.

It took me a while to get the hang of the foam cutter I built, but now it is doing great. I built it up from some plans and a power supply I got from Ed Berris, the Ex Sky king guy. I use compufoil for my templates...have been using that a while now. I use old formica that I have scavanged for the template material. Airfoil is the stock S6062 and 8020 stab.

I'll build this one with a removeable wing, like the LT, My wingspan will be slightly longer, maybe around 58" Other than a ballast provision it will be stock to the plan set.
Thanks Reed for a great design and fun build to come!
Posted by droydx | May 10, 2010 @ 06:39 PM | 5,188 Views
I had a spare fuselage, and wing cores for a Zipper sitting around. My buddy Glenn always liked the way my old one flew, so I built it up and gave it to him. I layed in some extra carbon in the fuselage, did a bolt down wing with servos wing mount. Extra carbon in the top root area, 1/64 plywood on the stock EH 1.2 airfoil, white foam cores. I put a ballast mount at the CG point in the fuselage and it holds about a 6.5 oz weight for windier days.
Glenn painted it up and should have it flying soon...some pics from his bench:


Posted by droydx | Nov 29, 2009 @ 10:10 PM | 7,711 Views
OK, After the Mark Grand Mini SR, I figured I would build up the Shredder short kit, that I got through another RC Grouper. I'll post some pics, and do a log over the Xmas break but for now, I'm slowed down because I dumbo'd cutting the 1/64" sheeting for the wings. I cut not one, but two complete sheets into pieces that are too small to use ! So, had to buy some more sheeting from National Balsa, the cheapest source I could find. I actually paid $21.00 for one 12 X 4 foot sheet at a Hobby People....akk National has them for 13.75, so the shipping costs are still a deal. Lesson is take your time, think it through and measure twice cut once.

Right now, I have the cores prepped, tubes mounted, outboard panels ready to bag, and tail pieces cut and ready to assemble. My only changes from standard plans is making removeable V tails and having a pop up canopy for a drag brake system.

Lets get ready to shred....
Andy
Posted by droydx | Oct 31, 2009 @ 09:21 PM | 6,667 Views
I've had this kit for a few years, bought it from Ed "Sky KIng" some time ago when it was on sale. I tried to sell it twice, but nobody wanted to buy it at my cost, so I decided to build it. Needed to buy a bit of lumber to finish it. There was some strange bits and pieces that didn't quite match the thickness of the wing sub TE and LE, so I cut my own. The glass work on the fuselage was crude but nice and strong, so I dig that. Mark Grand kitted these originally, and Ed licensed the design, to sell, and I think he changed the airfoil to a RG14 or something close. These are cute little planes, take the SR7 and scale it down to a 44" wingspan.

I built it with balsa wing sheeting, didn't do the "horner" curved wing tips, and made my elevator full span on the horizontal stab. Covering is ultra coat, or what ever they call it lately. 2- HS 85 MGs and a square 1/2 AA 600 MAH battery bring the AUW to 28 oz. I was really happy with the fit of the canopy. These can be a royal pain in the A, and if you kook it, youre done. It's the clear plastic, I spray it with a mist of silver, then black RC car paint on the inside. Its held on with a front pin and rear magnet set up....teee-ight.

Could be a while before it gets flown, but should be a fun, great looking model for close in work and half pipe fun.

Andy
Posted by droydx | Sep 05, 2009 @ 10:36 AM | 6,426 Views
Got this one a while back...flies like all the LEG's: GREAT! 55 oz, standard equipment
Thanks for all the super toys Jack,
Posted by droydx | Jul 05, 2009 @ 09:27 PM | 6,243 Views
This was another blast from the past project ( aren't most all of my builds?).

The telos builds like a typical socal psser, with fiberglass fuselage, and foam core wings. You'll have to think ahead of yourself, if you try to follow the build as in the older instructions. I changed a lot of things to my way...watch out for the aileron hinge geometry if you do top hinged torque tube linkages. You'll need to do a sliding tube set up inside the ailerons, or else you'll have some problems. I silicon hinged the control surfaces. Used a west system syringe to get the goo into the right places on the hinge line. These work super.

The fuselage is actually very narrow around the main wing,plan ahead for that, or you'll have clearence issues. I changed the way the wing attaches to the fuse also, went with a front pin and rear nylon 8-32 bolt. I had some saddle to wing mating issues. My wing was a lot smaller in chord than the saddle area, and using 1/64 ply as sheeting made the wing thinner.
I spent a lot of time fitting the plastic canopy...these things are always finicky. Painted it with flexible RC car stuff on the inside. Richard was cool and sent me 2 canopies.

I used just 1 servo for the wing, and 2 for the canard elevator/rudder. All are internal with torque rods for drive. I'd say max size is an hs 85 for this installation. I use cheap OSH paint on the wings, with OSH white primer. It sands nicely. I used Krylon fusion paint on the glass fuse. It needs to be rubbed out to shine, but is supposed to flex and cling - not blow off. We'll see about that.

Not a build for beginners...but it sure is different and was a lot of fun to put together - Andy
Posted by droydx | Feb 12, 2009 @ 08:59 PM | 6,631 Views
The rainy weather finally broke on the Southern California coast, so I was finally able to take some closet queens up the hill for maiden flights. I packed up my BAE Hawk PSSer, Stingeron, and Jart LT and went for it. Got up to ye olde ruins, and it was 38F, (26 windchill) blowing 30 to 40 from the NW, straight up the slope. Yeah it was cold!
I knew I wouldn't have too long to mess around, as I could see snow flurries hitting Little Pine Mt. across the canyon, so it was time to or get off the pot.

First off was the Doug Buchannon kitted Hawk. I cut my own cores for this one, somewhat based on 6060. Off my hand, it flew out smartly, and was a piece of cake to fly, extremely well behaved, and rock solid for the blustery conditions. CG was spot on, nothing at all wierd or funky, 10 minutes up and in for a good landing....YEAH!!! Note to self: don't mess with anything on this one.

#2 was the Stingeron. Anyone who has tossed off a pitcheron for the first time knows how dramatic these can be, especially when there is a ton of lift. They are fast and things happen fast, especially when setting them up. OK, out of my hand it went DOWN, a nano second and I was able to advert a complete spanking nose in, and it cranked to the right, hauling arse 3" off the slope face until I was able to scrub it in without damage. Whew!
So it needs some up trim in the wing panels from the stock setting. I added 1/16" up on both panels and manned up for another flight attempt....Continue Reading
Posted by droydx | Dec 18, 2008 @ 06:03 PM | 6,725 Views
Well, I fired up the build table after taking about 7 months off to work a million hours at some of the local fires. This was one that I've had sitting for a long time. I sheeted up the original white foam cores using the supplied obechi sheeting using 3M 77 to glue. The obechi seperated and the skin bubbled in a bunch of places, so I chucked them, figured I'd use some that Target had cut for me that were 7.5% RG 14's, but they were not the right size for the saddle! I ended up cutting my own, using SD6060, and fitted them to the saddle with some extra layers of glass to reshape it.

I sheeted these up with 1/64" ply and covered them with solartex for painting. The anhedral full flying horizontal stab is interesting, and I used the stock twin pushrod set up to actuate it. The ailerons are standard torque tube, single servo. Wingspan is 47" auw is around 42 oz. Not a heavy weight, but mid weight for around here. Still have to fly it, went up the hill today, but not enough wind for it....later!
Posted by droydx | Apr 21, 2008 @ 12:15 PM | 7,417 Views
Just finished this ship, and an Alula for the recent Weasel Fest #5 Flew great, super nice kit and fast to build.