SticknRudder

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Set up the drill and did both wings this afternoon. The drill is actually the sleeve and the wing tube clamped in the drilling fixture. Iapplied CAto the face of the tubes and dipped it in sand to generate an abrasive surface, so the resulting hole was ground as opposed to cut with teeth. Sleeve ODwas 1.350 - hole diameter 1.390.....this should allow the glue to remain on the sleeve instead of being extruded off the tube during insertion. Cores were extracted by slitting through the wing at 14.75" - inserted 1/32" G-10 plates through the slits to terminate the holes.

eurekame2

Wow,
Now that impressed me... Did you make the drill yourself? The kit that I am finishing the build on has the original plywood brackets. The tubes seem like such a better way to go.

SticknRudder

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Eurekame2,
yep built everything - I planned on using the 80/20 rail for the wing drill when Ifirst started this project, way before Iconsidered it for the frame - just happens that Idid the airframe first. Wing tube is a much better idea. Iset the sleeves in the wings this afternoon and added 1/4"thick plywood pads inside the fuse to reinforcement the wing tube holes in the side plates - these additional plates allow precise alignment of the wing tube parallel to the top of the fuse, and for perpendicularity to the centerline (wing tip diagonals back to the tail).

If anyone's interested in having their cores drilled for tubes, shoot me an e-mail.

Thanks!

PWRDrill

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Excellent work!

SticknRudder

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PWRDrill, thanks for joining us - appreciate you feedback - good job on the "WildHare 50cc MX2 Build" thread. I'm picking up some good tips and thanks for the PM info on the fuel system.

I completed sheeting the fuse this weekend and had intended on doing the wing structural work today, but got involved with the main gear support - decided Ididn't like the existing design. Iwas ready to just epoxy it in-place and move on to the wings, but after studying the assembly Irealized that even a soft landing will flex the main gear plate and bust the sides out of the fuse (this would be the 1/8"sheeting and the poplar stringers on both sides). So Istiffened the plate with a "beam" and detatched it from the sheeting. Inotched the 2 supports from the motor mount assembly to accept the beam as a single piece (see corresponding notches in the beam). I will box in the recess for the gear and also sheet the top of the gear plate with 1/16"balsa which will be tied in to the 1/8" sheeting on the fuse, so if the gear plate does flex (as Ithink it will), it will only crack the 1/16"sheeting and not the sides.

Thanks,

PWRDrill

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That's an interesting design for the landing gear mount. I like what you've done with it. It looks like it will hold up to all but the worst landings. Again, excellent craftsmanship.

Kevin

SticknRudder

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Since I eliminated the doublers from the spar extensions to use the wing tube, I needed a method to secure the wings to the fuse. F-2 and 3 are 1/8"ahead and behind the respective spars by design - decided to locate the attach points where they would be the most accessible inside the forward compartment, so about 1"forward of F-2 and F-3. Iused 1/8"extruded aluminum angle and reinforced the root end of the spars with 1/8"ply. The angles are fastened with #8 buttonheads, and the studs are 1/4-20 SCHS with locknuts. The root plate shown matches the hole patterns in the fuse - it's serving as a template now to make sure the studs are perfectly aligned with the socket, and for maintaining the centerline for the remainder of the foam build-up. If Ihad it to do over Iwould have repositioned F-2 and F-3 in the fuse and simply cut a "T" slot in the root end of the spars (that matches the profile of the cap screw) and inserted a longer cap screw in the slot, sharing the spar centerline, and epoxied it in-place. The root plate will be finished to the airfoil profile and epoxied in prior to sheeting.

T. Bob

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Have one with a G-62 and it's a huge PIG.
But at speed it flew very well.
Keep it fast and it can be fun
Good luck
Still have mine

SticknRudder

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T Bob,
Care to share any more info/details?Any pictures?
Thanks

Tony Hallo

I read keep it lite. The plane was designed in 1986 long before CNC, lasers, and lightened interlocking parts were used. I built one from an Ace kit and later built another from the planes however used a wing tube, substitued lite ply for the sides, hollowed out the turtle etc. I flew the original with a Quadra 52, the plans built used a G62. Flew good for it's time. Today a plane this size would sport a 80-100 cc engine.
I would replace the 1/8" ply wing spars with 1/8" balsa if it were me to save some weight.
You're just the other side of Monroeville from me, maybe one day our paths will cross, there's not many building out there. I fly at the Kittanning 268 Skykings field, how about yourself? Keystone Clippers?

SticknRudder

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Sorry about the delayed response. Ihad hoped by now that Iwould have been much farther along with this build, but will continue on with it over the next couple of months. Since it's flying season here in PA, been spending a few more evenings at the field than in the shop. Anyway, the right wing is ready to sheet and the structural stuff started on the left wing - Iwant to do one at a time so Ihave some recovery from any goof -ups - been lucky so far - but would rather be cautious at this point in the build.

Iwould like to sheet the entire wing and then cut out the aileron, prior to adding the final balsa trailing edge - but having second thoughts. Anything wrong with removing the foam aileron section of the trailing edge, then sheet the wing? I'll add the balsa sub-trailing edge to the aft spar over the length of the aileron first, then sheet. I'd build and sheet the aileron as a separate piece trimmed back to match the thickness of the sub-trailing edge. Does this make sense?How should the be done?

Thanks

rtn9105

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Anymore progress on this build?

SticknRudder

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There will be soon - our flying season is over so I'll be getting back to work on the built and this thread.
Thanks, SnR

rtn9105

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Looking forward to seeing your progress
I know what you mean about the flying season being done, it's 10 deg right now here and that's about as warm as it's suppose to get today. I've got a couple smaller projects to finish and then I plan to finish the build on my 30% 230.

rtn9105

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Anymore build progress on this plane?
Anymore pictures?

SticknRudder

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Man..... Ijust lost 2 paragraphs on my progress since my last post so I'll paraphrase. Finishing up the structural work on both wings getting ready to do the sheeting. I've done some testing with DAPWeldwood non-flammable contact cement and it works great on these white bead (EPS) foam cores - much better than aerosol - just followed the directions on the can. Peel test - either the balsa shreds (leaving balsa behind), or it pulls the foam up with it, as compared to the spray-on ashesive where the balsa separated from the foam. So this is what I'll use to sheet the wings. Panels will be made in the conventional manner - Iuse Super-Phatic (Ontario Adhesives)for the seams. I'll post some pics in a couple days.
Thanks, SnR

rtn9105

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Did you guys put hardpoints for control horns in the ailerons when you built the wings?

rtn9105

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SticknRudder
Did you ever get your sheeting put on the fuse? Did you decide to sheet the entire fuse or just the front part like the plan calls for?
Some pics of your progress would be great.

microdon2

My Feedback: (47)

A few weeks ago I picked up a used Extra 230 \ 30% with an FLT 45 inside (advertised here on RCU). Have spent a few days fixing things up and just tested the engine - sounds very strong. The guy I bought this from had an Top Flight 22x6-10 prop on it - seemed a bit large for this engine and plane (not much ground clearance, either). I'm going to do my initial flights with a Xoar 20x10. This is a handsome airplane - though the wings seem a bit long for the fuse size - guess that's the designe. Still, very nice. I'm happy with the plane so far, plus I got it for a decent price. I'm now working on a better way to anchor the canopy. Should do my maiden with it this week and will post results and some pics.

rtn9105

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microdon2
Can't wait to see the pictures and hear your flight results. I'm still in the middle of building my 30% so I look forward to hearing about yours.

Jamestat2

I got a set of prints for a 30% Extra 230 by Ace off of Outerzone. I printed them out last night and they are frickin huge (36" X 71")! I am in the middle of a 25% Pilot Bellanca Decathlon right at the moment but I can't wait to get on this one!

Sticknrudder, I've got a whole mess of 80/20 sitting around my shop and never thought to use it as a fuse jig! Thanks for the bright idea!

slayur

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I just bought a new in box kit yesterday. I'm going to start it next year some time. I had built one back about 20 years ago or so. I had a Sach's 3.2 for power back then. On this plane I'm going to use an AGM 60 twin.Updates in the future.