Larry Dudeck

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For those of you who still like to design and build your own planes...

My latest is an F86 Sabre, 48" wing span with 360 sq.in. of wing area. Push will come from a Kyosho T33 fan driven by a HET Typhoon 2W powered by a 2S2Px2600 pack. I plan on using a CC45 ESC, 3 HS81's, a HiTech 555 receiver. Construction will be 99% balsa with a bit of pink foam.

AUW should be right around 42 oz for a wing loading 16.8 oz/sq/f. As all of my EDF's, the F86 is being designed for simple hand launch, small field flying.

Rusty-Gunn

Hi Larry... I enjoy designing my own planes, and truely enjoy building them a bit more then flying them (I tend to crash a bit too often). The material i have on hand is one-inch blue foam board, and "C" Foam from BP Hobbies. The plane i'm working on now is one i call the Slasher Cat, which is a duct fan plane, using two EDF 50's. My nephew is building a duel duct F-15 style plane that he designed. I've got a slightly larger SC that I intend to install a brushless motor in, rather then ducts, as this version is profile. I'll see if we can put up pics of these planes soon (my nephew's sister has a camera, and we're subject to it's availability). Good luck on your project.

vicman

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Git er done and we shall see! I am waiting for a worthy plan to occupy my time.

Larry Dudeck

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Limiting my building time to after 10:00 PM and a rainy/windy Saturday morning, I built the wing panels. Ribs are 1/16" balsa, top and bottom spars are 1/8 x 1/4 spruce, shear webs are 1/16" balsa, LE is 1/2 x 3/4 balsa and the TE's are commercially available 1 1/4 x 1/4. The TE's had to be built up to match the curve of the 12% Clark Y. About 6 hours for the two panels

Larry Dudeck

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A little bit of progress...

F6 is the only lite ply in this build.

Larry Dudeck

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Some progress on the F86.

Larry Dudeck

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Slow progress continues...

monss

The F86 looks great - cant wait to hear how it flies. I'm a newbie to EDF and would love to build one, but am having a hard time finding plans. I have found plenty of plans on the net for prop driven planes, but almost none for EDF. Do you know of any good sites for buying/downloading EDF plans? I am also not an experience builder (3 or four ARFs and one simple electric scratch build), so would need plans that are reasonably detailed.

Rusty-Gunn

Nice plane. I await its finish, and maiden flight. you do good work.

Larry Dudeck

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Monss,

Take a look at

www.traplet.com

for plans of EDF's. They have a HE 162, an A10 and a MIG 15, all EDF. I haven't seen their plans so I can not comment upon the quality but I'm guessing they will be OK.
Rusty-Gunn

How did those little GWS fans work out?

Larry Dudeck

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Stand back, turn down the lights and squint - you can just see the F86 emerge...

Larry Dudeck

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Monss,

try this...

http://www.parkjets.com/free-plans.html

monss

Thanks Larry - some really nice looking planes at both sites. I'll let you know what I decide to go with, once I've finshed the ARF and first scratch build that are in the shed at the mo!! The F86 looks great - have looked at the kit for these from Alfa Models and they also look fantastic.

bingo field

Hi Larry, Don't be ashamed it takes a half mile runway to get it off the ground. I worked at China Lake a long time ago, and watched how slowly (compared to more modern jets) the F86 accelerated to get airborn. We used them as targets, (made me kind of sad to see them go down the runway for their last flight) - hope yours comes back in 1 piece. Nice work.

Larry Dudeck

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"... We used them as targets..."???

Explain, please

bingo field

Just think of large UAV's. Air to Air missle exercises. I didn't personally shoot at them, I was ground crew for a number of different types of aircraft.

How's your build progressing?

Larry Dudeck

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Until I receive the 1/32nd balsa I've ordered, not much else to do

bingo field

With all the shops around you, you have to order it? Maybe you are being very selective?

Larry Dudeck

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bingo field,

Only two places around here carry the 1/32nd. And I have cleaned them out.

Heres a couple of progress pix. Ailerons hinged and servoed. elevators hinged, vert. stab covered.

bingo field

Looks better than a lot of arfs. How are you going to finish it, with sheeting? Where do you go shopping at? I am somewhat familiar with your area, I used to be there nearly every day for work over the last 3 years. Most familiar with Fields and Hobbytown, couldn't find the one in Lockport while I was working.

Larry Dudeck

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Up until recently I shopped at Fields. Now that I am working a part time job in another LHS, I stay away from Fields. Although yesterday I stopped by, wearing a "Groucho Marks" disguise of the eye glasses, bushy eyebrows and large nose. True to form, Doug had a nice supply of "Bud Nosen select" balsa, much better than anything else I can find around here. So I bought a pile of 1/32nd sheet.

I will continue to deal with Doug as he offers a very nice decal service that is not available anywhere else, except on line.

I have purchased from Hobbytown, only because that shop is closer to me than Fields. My purchases there where limited to CA,
maybe some CA hinges, etc.

For finishing, the wings will be 1/32 nd sheeted from the LE to the main spar and I will add 1/32 cap strips. The bottom will have the center section sheeted with 1/32nd then glassed. Then the wings will be covered with Ultracote. The fuse will be fully sheeted as with my minimal frame design, the sheeting is what provides all of the structural rigidity. The fuse will get 4 or 5 coats of shellac to seal the wood, followed by rattle can paint.

What were you doing in this area?

bingo field

The company I used to work for had a lot of computer customers in the area, with 24x7 service. Also Angola, Syracuse, Rochester, Binghamton, Ithaca, Elmira, Olean, Watertown, Ft. Drum, Utica...... When I was in the area and it was daylight out, I used to like to stop in at Fields, sometimes Hobbytown, depending on which way I was traveling...

If you get a chance to post some pictures of some of the sheeting process, I would like to see it.

Larry Dudeck

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bingo

Some progress on the wing panels. The sheeting starts at the center of the spar and is wrapped around the LE, past the stagnation point. The cap strips are put in place, then the spar is sheeted to the rest. The wing panels are now ready for covering, but only from the tip to the root rib.

Then the panels will be joined at the proper dihedral and the bottom of the wing will be sheeted from root rib to root rib.

Sheeting the fuse is a time consuming process. It will be done in sections, from one former to the next. I would not be surprised to have 20 to 30 sections by the time it is finished.

bingo field

Wow, nice job on the le sheeting. I just finished the last sheets on the Venture 60 I am building. Maybe it's too warm in my shop, but I can't seem to cut the sheeting as nicely as you have it. I don't see much in the way of glue that sticks out from the spar. Looks like it may take some time, but nice work. I can't seem to make much in the way of headway on my build. I know I'll get there, but I get frustrated with the lack of consistancy I have with "time off" to build. Too many little things get in the way it seems. Maybe it doesn't make much of a difference, but wouldn't the aileron servo be more effective at a 90 deg. angle to the trailing edge? I guess if you are using a ball link, it would help to add some "exponential" maybe at that angle? It could be the angle that the picture was taken at, I am by no means a pro at this. Keep up the good work. I hope to see more pictures of your build. If I can make some progress on some other stuff around here, I might attempt an A-4 with a ducted fan. It would be nice to see one of those represented..

Larry Dudeck

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Bingo,

I make sure I "give" myself a minimum of 15 minutes a day to build. No matter how much is going on I can always find at least that much time. Sometimes it is much more convenient for me to hit the work shop 3 or 4 times during the day than one longer stint.

"...but wouldn't the aileron servo be more effective at a 90 deg. angle to the trailing edge..."

Absolutely! If this was to be an aerobat than I would do just that. But the controll rods will penetrate the surface of the wing so I want them parallel to the air flow. The rods, oriented as they are, will minimize any disruption of the air flow as they will present the least amount of area. Minimizing the drag inducing area is even more important if I decide to cover the rods with a fairing.

Typically, my aileron throws are only =/- .375" on low rate. Rarely use high rate