Midwest Extra 300xs Build
#151
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From: Newnan,
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CA claims that it will build at 13-14 lbs. That would be a nice power to weight ratio with a 50cc. Do you think it will actually build that light with a with the larger of the recommended motors ar did they come up with that weight with the 1.8 glow?
#152

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From: Frederick,
MD
Digger44,
I expect to be around 14 lbs with a BME-50. It should weigh 3 to 4 lbs lighter than the ISC Staudacher it's replacing. I'll try to get some digital photos and start a thread on the Columbo~Anderson model build. Mine is framed however a friend is doing one along with me and his is in the rubber band stage on the fuse. Be aware the directions leave a lot to be desired. If you have built other models you should be fine. Set up of a plane this size or larger takes skill not necessary in smaller planes. No hardwaare is included with the kit.
I'm using a Rod-Chuck system to make pushrods. Fuselages are framed up in a Gator RC fuse jig so they are square and without twist. These planes don't take much longer to do than most ARC (Almost Ready to Cover) planes.
See http://aero-works.net/store/ for additional kit information. The page for the 27% is http://aero-works.net/store/detail.aspx?ID=195 Take a look at the video on this page. If the video doesn't convince you......... I would suggest an engine with a front intake due to the fuselage design including a good bit of foam. If gas gets to the foam it would be a disaster.
EXCAP232
I expect to be around 14 lbs with a BME-50. It should weigh 3 to 4 lbs lighter than the ISC Staudacher it's replacing. I'll try to get some digital photos and start a thread on the Columbo~Anderson model build. Mine is framed however a friend is doing one along with me and his is in the rubber band stage on the fuse. Be aware the directions leave a lot to be desired. If you have built other models you should be fine. Set up of a plane this size or larger takes skill not necessary in smaller planes. No hardwaare is included with the kit.
I'm using a Rod-Chuck system to make pushrods. Fuselages are framed up in a Gator RC fuse jig so they are square and without twist. These planes don't take much longer to do than most ARC (Almost Ready to Cover) planes.
See http://aero-works.net/store/ for additional kit information. The page for the 27% is http://aero-works.net/store/detail.aspx?ID=195 Take a look at the video on this page. If the video doesn't convince you......... I would suggest an engine with a front intake due to the fuselage design including a good bit of foam. If gas gets to the foam it would be a disaster.
EXCAP232
#153
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From: Newnan,
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So much for plans, I mean I really did intend to get a lot done over the last couple of weeks but seems I had other priorities. Needless to say I didn't get too much done. I did get to fly a couple of days though
.
Just wondering, Has anybody here used these rod ends for carbon fiber .188 rods and if so what do you think of them? Found these after clicking one of the links here on RCU.
[link=http://www.abellrc.com/ABELLRCHOME.htm]ABELLRCHOME[/link] These look like a pretty clean setup to me, but again, I am new at this.
. Just wondering, Has anybody here used these rod ends for carbon fiber .188 rods and if so what do you think of them? Found these after clicking one of the links here on RCU.
[link=http://www.abellrc.com/ABELLRCHOME.htm]ABELLRCHOME[/link] These look like a pretty clean setup to me, but again, I am new at this.
#155
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From: Newnan,
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Finally got back to it a little bit. I've been just piddling around and not getting much done. Havn't had the right attitude lately, but the days are starting to get a little longer already so I need to get going. Any way here are a few updates.
I removed the cowl and motor and reinforced the motor box with tri-stock on the outside and on the inside. This might be a little overkill. I also plan on wrapping the edges of the firewall around to about an inch or so with fiberglass.
I removed the cowl and motor and reinforced the motor box with tri-stock on the outside and on the inside. This might be a little overkill. I also plan on wrapping the edges of the firewall around to about an inch or so with fiberglass.
#156
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From: Newnan,
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Next, I cut the opening in the bottom of the wing for the servo and installed the servo tray doublers and bracing. Then I knocked out the opening between the top and bottom spars for the dihedral brace.
#157
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From: Newnan,
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Now it's time to install the hinge points so I drew a center line on the trailing edge of the wing and the leading edge of the aileron. Then, over the plans, marked the hinge point locations on both edges. Drilled 1/16" hole to be used as a pilot for the larger pin size.
#158
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From: Newnan,
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I decide to bevel the trailing edge of the wing along with the aileron. Don't know why this wasn't in the instructions. The aileron bevel is, just not the wing.
#159
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From: Newnan,
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After the bevels were planed and sanded, I drilled the 3/16" (I think) holes for all the hinge pins. Actually I stepped up to this size in steps using a 1/8" first and then the 3/16" on all the holes. You might have noticed that I removed the 6-32 control horn bolt from the aileron. I did this because earlier on I had decided to use 8-32 hardware and 4-40 connectors so installing the 6-32 horn was a mistake. I plan on using carbon fiber .188 rods with the ends shown in post# 153. I ordered these the other day and they look like a pretty clean setup to me. I will also be using the Dubro 4-40 ball joints on the servo end of the rod, and probably RCL horns and connectors at the control surface end of the rod.
Somehow I uploaded the wrong picture??
Somehow I uploaded the wrong picture??
#160
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From: Newnan,
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I didn't get any good pictures of the hinge point recess on the aileron and the wing. But while fitting the hinge pins, I cut a recess as wide as the pin and deep enough so that the center pin in the hinge is centered on the peak of the bevel for each surface. This should allow the gap at the hinge line to be at a minimal when permanently installed. Did that confuse you too???[sm=bananahead.gif]
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From: Blackfoot ,
ID
Hey there digger glad to see your back at it .keep up the good work still plenty of time for the weather gets real good for flying ,sides a plane like this a person wants to savor some .I'm away from the tble for a while yet due to back surgery,but hopfully in a few weeks I can get things back in order. I'll keep checking back hope to see the finish product here soon .Happy Landings.
#162
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From: Newnan,
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Hey Cyber, hope everything is ok with your back. I know a few people with back issues and I understand they are no fun. Get well soon.
I did finally check the incidence across the first wing and to my surprise it was off about 1/2 deg from base to tip. I guess it could have been the way I used the meters. I started the other wing tonight and will post some updates later on or tomorrow.
I did finally check the incidence across the first wing and to my surprise it was off about 1/2 deg from base to tip. I guess it could have been the way I used the meters. I started the other wing tonight and will post some updates later on or tomorrow.
#163
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From: Newnan,
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Well, I did get started on the other half of the wing and made a little progress. It's at the point of installing the main sheer webs. I hope to get some more time tomorrow to work in the shop.
#165
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From: Newnan,
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On with the sheeting. Progress pics. Not too much detail here, same as other wing.
1.) Trailing and Leading edge sheeting applied.
2.)Wing base sheeting on.
3.)Tip sheeting.
4.)Servo Tray glued in.
5.)Rib cap strips.
6.)more rib cap strips.
7.)Servo bay bottom sheeting.
8.)Wing root block sheeting.
9.) Bottom sheeting complete.
1.) Trailing and Leading edge sheeting applied.
2.)Wing base sheeting on.
3.)Tip sheeting.
4.)Servo Tray glued in.
5.)Rib cap strips.
6.)more rib cap strips.
7.)Servo bay bottom sheeting.
8.)Wing root block sheeting.
9.) Bottom sheeting complete.
#166
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From: cypress,
CA
nice build thread Digger i built one of the first one when they first came out. did alot of mod's to it power was a moki 1.8 cut my own airfoil tail for it weight was 12 pounds 13 ounce's . looking through your thread i think ill see if i can find one and build it with a 2 peice wing . that plane was one of the best flying one's i had i wish i never sold it
#168
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From: Newnan,
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Few more update pictures.
1.)Angle blocks pinned over plan.
2.)Aileron horn block epoxied in place with cap.
3.)Forward wing bolt down block.
4.)Rear wing bolt down block.
5.)Servo wire tube installed.
1.)Angle blocks pinned over plan.
2.)Aileron horn block epoxied in place with cap.
3.)Forward wing bolt down block.
4.)Rear wing bolt down block.
5.)Servo wire tube installed.
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From: Clarks Summit, PA
Digger, nice build thread, very detailed progress. Did you go with those ends on the control rods? I have good luck with the CF rod/titanium end from CH. Light and strong. Double bevels are a nice touch. Keep at it. Joe
#170
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From: Newnan,
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Thanks Joe, well I did buy some of them to check them out, They look pretty good so far. Havn't made any up yet but hope to soon. I think I will do a couple tests before I install on the extra. I am a little concerned that nobody seems to be using them that I know of. Havn't had any feedback good or bad. They might just be new on the market?
#171
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From: Newnan,
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A few more update pics on the wing.
1.) Leading and trailing edge sheeting installed.
2.) Tip sheeting installed.
3.) Base sheeting installed.
4.) Rib cap strips.
7.) Wing tip cap glued on and rough sanded to shape.
5.) Leading edge carved and sanded to rough shape.
6.) Wing bolt block sheeting and aileron servo wire hole cut.
1.) Leading and trailing edge sheeting installed.
2.) Tip sheeting installed.
3.) Base sheeting installed.
4.) Rib cap strips.
7.) Wing tip cap glued on and rough sanded to shape.
5.) Leading edge carved and sanded to rough shape.
6.) Wing bolt block sheeting and aileron servo wire hole cut.
#172
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From: Newnan,
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Next step is cutting the aileron off of the wing,[X(] I really didn't like doing it this way. Building the wing and aileron and wing in one piece is ok and pretty efficient I thought, but you could end up re-building them if you are not careful while cutting.
First pic is the cutting process and the second and third are the results after sanding the cut edges flush with the spars. Fourth is the trailing and leading edge hinge blocks installed. Next is the leading and trailing edges glued in place ready to be drilled for the hinge pins and the bevel shaped on them.
First pic is the cutting process and the second and third are the results after sanding the cut edges flush with the spars. Fourth is the trailing and leading edge hinge blocks installed. Next is the leading and trailing edges glued in place ready to be drilled for the hinge pins and the bevel shaped on them.
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From: Blackfoot ,
ID
Hey guy that looks familiar Hehehe ,I know how the alottment of time always goes elsewhere , but your getting there ,for ya know it your going to be covering that doll,keep up the good work.I did get back to my little project some ,at least enough to see what it will appear like when finished.I'll be checking back to watch your progress.Looks mighty fine to me great thread.Happy Landings
#174
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From: Newnan,
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Cyber, your Corsair looks good. Glad to see your back at it. Hopefully, I'll get more time in the shop this week. Preparing to join the wing and get started putting all the pieces together. I am curious to see what the weight will be with all gear installed before covering. Seriously considering a paint job on this plane over Coverall. I think that would be different and I have a couple of schemes in mind, but I am not willing to sacrifice too much weight.
#175
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From: Newnan,
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A few more updates,
After sanding the leading and trailing edges flush with the sheeting,
1.) Marked the hinge locations on both aileron and wing and step drilled to the right size
2.) Beveled the leading and trailing edges
3.) Cut recesses for the hinge point in the edges
4.) Hinged the aileron to the wing to check for clearance and hinge gap.
5.) Full hinge gap
After sanding the leading and trailing edges flush with the sheeting,
1.) Marked the hinge locations on both aileron and wing and step drilled to the right size
2.) Beveled the leading and trailing edges
3.) Cut recesses for the hinge point in the edges
4.) Hinged the aileron to the wing to check for clearance and hinge gap.
5.) Full hinge gap


