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RE: Hot Hots Plans Build Thread - 1/2/2013 1:14 PM   
kdc



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Status: offline 		No, I dont think it was SLEC but Micromold, Chart, MFA or Flair or somebody else.

Anyway its no longer available here. But note the Hot Hots is not quite the same as the other Hots versions. Some had removeable wings, some fixed and other variations. Many different Hots plans have been published

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RE: Hot Hots Plans Build Thread - 1/2/2013 1:26 PM   
WILDCRASHWILLY



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Status: offline 		Thanks for the info and the correction on the SLEC kdc. If not posting a pic I'm usually on a kindel. If I'm not careful it will auto lowercase after the first cap.

I didn't work on the Hots until fairly late lastnnight. For some reason yesterday was down in my back all day. Did start sheeting lastnight though. I'll take somnpics tonight.

Have a good day all.

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RE: Hot Hots Plans Build Thread - 1/2/2013 2:33 PM   
john josey


 

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quote:

ORIGINAL: kdc

No, I dont think it was SLEC but Micromold, Chart, MFA or Flair or somebody else.

Anyway its no longer available here. But note the Hot Hots is not quite the same as the other Hots versions. Some had removeable wings, some fixed and other variations. Many different Hots plans have been published


Your quite right, it was Micromold. A friend of mine has plans for an eliptical wing hots which he's always on at me to build. Any of you guys ever seen one fly ?


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RE: Hot Hots Plans Build Thread - 1/5/2013 12:38 AM   
WILDCRASHWILLY



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Status: offline 		Not part of this build but, I thought I would post a pic of the Hots I had last year, RIP. I had stick built the bottom portion of the rear and tail feathers to resolve the tail weight issue that this model has had over the years, at least on mine.


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RE: Hot Hots Plans Build Thread - 1/5/2013 11:11 PM   
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Status: offline 		Yours had a fiberglass cowl??? Oh man! I had to build mine up.


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RE: Hot Hots Plans Build Thread - 1/6/2013 2:29 AM   
WILDCRASHWILLY



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Status: offline 		I built the cowl. I still have the plug so it is my intention to cut the nose off and build a couple cowls for these as well. I'll document the process with pictures. It's pretty straight forward on the Hots as there is no weird shape to deal with. We have been out to my inlaws this afternoon. When I go out to the shop in a few minutes. I'll take a couple of pictures of the plug. I made it with florist foam. I learned how here on RCU somewhere.
I originally had Tower Hobbies 46 on the plane in the picture but decided to put an OS 55 on it. What a weak piece of junk... Putting the Tower back on this one. Have also had great performance with Magnum 46 XLS engines on the Hots. I have a brand new Magnum but I've decided to save it for another project. Got to get a 2nd one so I can build a TF DC 3 kit that I have laying on a shelf. That one is some time away though.


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RE: Hot Hots Plans Build Thread - 1/6/2013 6:59 PM  1 votes
WILDCRASHWILLY



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Status: offline 		Red_Jeepster,

Here are a few pictures of the plug. put about a six or eight inch piece of 1/4 or 5/16 dowel rod sicking straight up out of your vice or other holding fixture. Stick the plug on to the dowel with the fat side down, " nose of the cowl aiming up". I pull seran wrap tight over the plug and tie it off under the plug around the dowel with a small 3 inch zip tie. Here is the most dangerous part,,, use extreme caution,,,go in the house, go through your wifes chester drawer and get a pair of her stockings, "leg highs work well", try not to get caught because wives don't seem to like this part very much. Usually mine catches me and picks out an old pair for me to use. Then split the legging or stocking open so that no seams are on the mold, pull them tight over the Seran wrap previously placed on the mold and tie the bottom off around the dowel with a another small 3 inch zip tie. cut enough strips of .5 oz glass cloth about 1 inch X 8 inches long depending on plug, to cover the plug top to bottom. Set aside... then I like to cut more strips of 1 or 2 oz cloth to cover the plug again and set aside. depending on how thick you want the cowl is how many strips of cloth you cut to build it up. The above usually takes care of my cowls. Mix up a small container of polyester finishing resin epoxy, " I like to thin mine slightly with denatured alcohol or acetone purchased at lowes or some other hardware store. Brush the mixture onto the stocking covered mold first trying to keep smooth as possible with out air bubbles, Being thined usually takes care of this. Then go back and lay the .5 oz strips top to bottom all the way around the mold, works best for me. Then brush the mixture on again followed by winding the next layer of cloth around the mold. I wind starting at the bottom and overlap about a 1/4 inch or so as I work my way to the top. at the top be sure to lay the glass in over the top to be cut out later with a hole saw or a dremil so the propeller shaft can stick out the front. Then I sand with 150, then fill any pin wholes or weave with a tube of automotive body filler puddy that I got down at the NAPA store. sand again and finish sanding with 220 grit, then prime and paint. If you really want it slick, you could sand with 400 or finer but, I'm not patient enough. This is just a little fun fly plane and 98 percent of the people won't know the difference. Cut the prop. shaft nose hole and cut the circumference about a 1/4 inch from the bottom of the cowl on the plug. Simply slip the cowl off and you're ready to go. Paint to your taste. Also, I added an extra 1/2 inch of foam and sanded to shape on the large end of the plug so the cowl would be large enough to slip over the front of the Hots on final assembly.

The first two pictures are of the plug and the last picture is of the broken cowl I saved off of my last Hots.

Edited spelling



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RE: Hot Hots Plans Build Thread - 1/6/2013 7:14 PM   
WILDCRASHWILLY



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Status: offline 		On the first pic, I did some sheeting on the wing last night. I like just a little sheeting on the leading edge, servo mounts and cap strips to finish one of the wings, Hopefully this afternoon. End caps also.

2nd picture is where I deviated from plans a little as I like to use two wing hold down bolts. The plans only call for one. I had some leftover balsa block from a Decath build, that I cut and placed in the center of the wing in the bolt hold down area for extra support.

3rd picture is where I discovered my trailing edge stock, that you saw me cut earlier with the cutter is just a little short. I cut the sticks diagonally for greatest strength and glued the them together. Then I cut the length I needed. The splice is out at the last rib so strength shouldn't be an issue.

Pictures number 4 and 5 are cutting and glueing the hinge blocks.

BTW Guys, please forgive my terrible spelling, it's pretty crappy and much worse if I get in a hurry typing.


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RE: Hot Hots Plans Build Thread - 1/6/2013 7:21 PM   
WILDCRASHWILLY



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Status: offline 		A little off topic here but, I decided I need to replenish my balsa inventory which I normally do around every eighteen months or so. I spent some time looking through a supplier's web site the other night and what I paid $125, give or take, is going to cost me around $300 plus. WOW! What happened? I missed something here. Was there a big balsa destroying event that I missed? I don't have any choice as I like to build so I'm gonna suck it up and get it ordered. I'm going to get some alternate pricing though just to see whats out there.



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RE: Hot Hots Plans Build Thread - 1/6/2013 10:02 PM   
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Status: online 		Bill, a lovely clean and tidy build......loving it !         I know what you mean on the balsa prices, i got the fright of my life the last time i bought wood.

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RE: Hot Hots Plans Build Thread - 1/6/2013 11:49 PM   
RCFlyingKnight


 

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Status: offline 		Your build is looking good.

Do you think 6 hinges per side is really needed? I was planning on using 4 as most planes I've built that size have 3. Or is the aileron a little on the flimsy side?

Matthew

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RE: Hot Hots Plans Build Thread - 1/7/2013 12:26 AM   
WILDCRASHWILLY



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Status: offline 		Matthew,

Good call,,, I agree, you are correct. I'll probably just use four per side. I think that's what I've used in the past. Actually, I may have put all the hinges in as ca's on my very first one but I can't remember for sure, that was too far back for me to remember. In fact, I'm not sure what I did on the last one. I'll have to look at a couple of pics and see if I can tell what I did on that one. I just kind of got in the drone frame of mind and put a hinge block everywhere the plans illustrated. Not sure if I'll use Robarts or Blade hinges. The plans call for CA hinges but, I probably use one of the other type as I like a free surface and the ca's are a little stiff at times. These planes were designed a little heavy by today's standards but this overkill type building was the way everyone designed ten and fifteen years ago for the most part. The plans don't call for it but I'll probably build the rudder and elevators with counter balances. I've done that on most of the Hots that I've built but really hadn't decided for sure on these.

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RE: Hot Hots Plans Build Thread - 1/7/2013 4:14 AM   
WILDCRASHWILLY



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Status: offline 		Hi everybody,

The first two pictures are where I put the bottom sheeting on the LE. On this one I used CA on all ribs except right at the LE. There I put down about a 1/2 wide strip of Tite Bond so I could sand and shape the LE easier. The third picture is a shot of the LE where I have done a little rough sanding to get close to the final shape.

On the other wing for the 2nd Hots, I'm thinking of demonstrating the Tite Bond or Elmers and heat method of glueing the sheeting on. I've done both over the years and they each work well. Each one has pros and cons so I might go into that a bit on the other wing.



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RE: Hot Hots Plans Build Thread - 1/7/2013 4:34 AM   
WILDCRASHWILLY



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Status: offline 		Here I took some lite ply and made some brackets for the servo rails. Sometimes I make servo boxes and glue to one rib but, useing both ribs on each side of the wing seemed more appropriate for the strength needed here. The plans actually call for cuttung square holes in the ribs and sliding the rails in. I did that on the first one about ten years ago and it worked okay but I never really felt comfortable with it strength wise. This was just some left over lite ply saved off of a recent kit build. Many times I save bits and pieces from kit die cuts to make small parts.

I took the measurements so that the rails would be the correct depth under the sheeting for the servos to be mounted. I have built some of these per plans and used hatches but, on these I'm just going to have cut outs the size of the servos and have them, "the servos", protrude through the sheeting on the bottom of the wing. Mainly, I'm doing this because I'm lazy and want to speed the build up a little by not messing with th hatche build.

Pic 1, shows the lite ply I used. I put a spot of tite bond on ea. piece and temporarily stuck them together so I could cut all the knotches at once. I then seperated them with an Xacto by cutting the glue spots between the sheets and started fitting them to the wing.

Pic 2 and 3, I ca'd them to the ribs at the correct depth, which in this case is allowing for a top sheet or cap strip is 5/16 inch below the rib surface. It would be 3/8" from a cap strip surface.

Pic 4, Test fit the hardwood rails I intend to use. Made them out of basswood. Did not glue at this time. Will use 15 or 30 minute epoxy when the time comes.

Pic 5, test fit a servo. Ironically, this is the very servo out of my previous Hots that was destroyed.


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RE: Hot Hots Plans Build Thread - 1/16/2013 7:47 PM   
Red_Jeepster



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Status: offline 		Willy, did you run out of steam?


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RE: Hot Hots Plans Build Thread - 1/17/2013 2:00 AM   
WILDCRASHWILLY



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Status: offline 		No Jeepster,

I haven't quit, just been out of pocket the last 8 or 10 days.
I did a little on the Hots Saturday... Very little maybe 30 minutes tops. I actually spent the weekend with my wife remodeling one of the rooms in the house. She says very little about my nasty modeling addiction so when she wants to do a little project from time to time, I owe it to her, plus it's some time we enjoy together. She was real happy with the way the room turned out. The last thing she said was she would not bother me next weekend and I was free to play. I travel considerably in my job during the week so that impacts my building speed. I will be in a position to work on it quite a bit this weekend.

One of my favorite sayings is, It's a shame we have to work for a living.

In reallity, I'm very blessed to have a good job, "even if does cut in to my modeling time". I have friends and family that have had some tough times, job wise the last few years.

BTW: I saw your last entry on the Decath thread, looking good.


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RE: Hot Hots Plans Build Thread - 1/17/2013 3:02 AM   
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Status: offline 		No rush! I do know how it is with travel for career and all. I especially know the part of having a great wife who isn't all negative about the hobby. It is good to do more with her.
I have started some builds myself and then life happens and I lost the time to finish posting to the thread. Next thing I know a year goes by.
looking forward to the updates.


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RE: Hot Hots Plans Build Thread - 1/21/2013 5:14 AM   
WILDCRASHWILLY



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Status: offline 		Did a little more building lastnight and this afternoon,

Picture 1: Epoxied the basswood to the lite ply for the servo mounts.

Picture 2: Cut the 3/32 shear webs. The plans called for four webs but, I extended an extra web each way for a total of six. If you've ever flown a Hot Hots, you know they can be pretty violent when you stop some of those extremely fast rolls on a dime. They will roll 3 to 4 complete rolls a second with barn door throws and wide open throttle. I broke one side of the wing hold down on one and was lucky to get it back on the ground without crashing. I learned then not to abruptly stop those extremely fast rolls.

Picture 3: Shear webs installed. I added additional material to the two center webs due to that being a very high stress area and I felt like my fit was not tight enough. Also, note the string I added to make servo lead installation easier when the time comes. Normally larger planes, I cut shear webs and place them inside of the spars to make an I Beam construction which is much stronger however with this wing only being 48 inch, I have never seen a web fail, especially adding a couple of extras and extra material on the center two the way I did this oone.



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RE: Hot Hots Plans Build Thread - 1/21/2013 5:22 AM   
WILDCRASHWILLY



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Status: offline 		With these pictures we'll see the following:

Picture 1: Installed the top center 1/16" sheeting. Here you can see the extra webs on each side of the sheeting.

Picture 2: Installed the bottome sheeting. Measured, cut out holes, and fitted the servos. I deviated from the plans here as they call for the making of servo hatches. They are not noticable on the bottom of the plane and just take up building time. Maybe on a scale or a larger plane with more detail but, I'm not willing to spend the extra time on a little funfly plane that I plan to fly the wings off of anyway.



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RE: Hot Hots Plans Build Thread - 1/21/2013 5:33 AM   
WILDCRASHWILLY



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Status: offline 		Here is a series of four pictures showing cutting the 1/16 X 1/2" wide cap strips for the ribs.

Picture 1: Cutting the strips to the correct length useing a neat little chopper that my kids got me for father's day 7 or 8 years ago from Micro Mark.

Picture 2: Close up of the little chopper tool. The blade is a single edge razor blade.

Picture 3: Cap strips installed on the bottome of the wing.

Picture 4: Cap strips as they look installed on the top of the wing:

Something worth mentioning that I wish I had taken a picture of. I put a small amount of Tite Bond on each end of the strip but, run a bead of medium CA down the length of the rib. This way the rib sticks immediately with no waiting while the Tite Bond or Elmers glue at each end of the strip allows for easy sanding to blend the cap strips smoothly to the forward and aft sheeting.



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RE: Hot Hots Plans Build Thread - 1/21/2013 5:37 AM   
WILDCRASHWILLY



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Status: offline 		The last two pictures tonight are where I installed the endcaps to the outer ribs. I put CA in the middle of the rib area and smeared Tite Bond around the outer circumference to make for easy sanding after the Tite Bond sets. I still followed up with tape eventhough the caps are secured due to the CA. This reduces the possibility of a gap on the edges of the caps where they meet the outer ribs.



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RE: Hot Hots Plans Build Thread - 1/28/2013 4:44 AM   
WILDCRASHWILLY



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Status: offline 		Here is a picture of the end caps installed and sanded but not finish sanded. Wings and rest of both planes will get a final sanding prior to covering.



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RE: Hot Hots Plans Build Thread - 1/28/2013 5:02 AM   
WILDCRASHWILLY



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Status: offline 		I had told Mathew that I was only going to use 4 hinges in an earlier post however, I decided to use six 1/8 Robart hinges vs the four 3/16 hinges that I was going to use since I already had hingblocks in the wing.
(Pic. 1 and 2): Since I'm not going to sheet the ailerons, I went with 3/8 sq basswood for the aileron leading edge to inhibit twisting and flexing. Drilling the leading edge of the aileron prior to building the aileron assembly useing a drill press. I previously cut the basswood to length for each side of the wing and marked the correct hinge locations on the basswood while holding it against the wing trailing edge.

(Pic. 3): Drilled each end of the aileron in the wing for a test fit.

(Pic. 4): Trial fit two hinges on each end to make sure I have a good free working and aligned end hinges.

(Pic. 5): Since the holes drilled are 1/8 inch for the hingepoints I'm installin, I used a couple of Bamboo Scewers as alignment pins to hold the basswood edge in place while drilling the rest of the hinge holes in the wing. Had I been installing 3/16 hingepoints, I would have used 3/16 dowel rod as an alignment tool. Makes for a good fit of all the hinges.



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RE: Hot Hots Plans Build Thread - 1/28/2013 5:13 AM   
WILDCRASHWILLY



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Status: offline 		In these pictures, I CA'd 3/8" triangle stock to the front of the aileron leading edge. This way I have a nice 45 degree LE on the ailerons without all that sanding. It does make the ailerons about a 1/4 inch larger fron to rear but, these things are so large, a quarter inch really makes no difference. If anything, it gives you a little more aileron power when deflected. I chased the holes from the back side to get the holes through the triangle stock in the right place. In the last pic, a nice fit, everytime.



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RE: Hot Hots Plans Build Thread - 1/28/2013 5:21 AM   
WILDCRASHWILLY



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Status: offline 		As mentioned earlier, I deviated from the plans on the ailerons. I built them 3/8" thick. Started by glueing 1/4" X 3/8" balsa laterals for strength. I followed up with more 1/4" X 3/8" balsa for the angles. I made sure each end had an angle going to the outside rear corner for additional strength at the outside corners. The last pic it the finished aileron but, not sanded yet. That will come later. Notice, I installed a small gusset at front inside corner for additional strength since this aileron is fairly deep on the inside next to the fuse.



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All Forums >> RC Airplanes >> Scratch Building, Aircraft Design, 3D/CAD >> RE: Hot Hots Plans Build Thread
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