Projects New RC Project that has me stressing

Tony

Staff member
Relaxing? I'm not sure of this word that you speak of...

Actually, I'm trying to find a way to get fuel into the RCH Heli without a fuel pump or fuel tubing... This could get interesting lmao. The damn thing is going to start tonight! I don't care if I have to put teh fuel line directly in the gallon of fuel...
 

Derek

Well-Known Member
That's awesome that you're wanting to start that thing up. Hopefully you'll video it running. I'd like to see it.

I just got done starting the upload of a video to YouTube. Should be done in about 22 minutes. Once it's done there, I'll post it here for ya.


This part of this post goes to anyone that is new to RCH and finds this thread. My name is Derek. I live in NE Indiana, where it's nice and FREEZING right now, lol. I've been flying RC planes and heli's for about a year now. In August of 2012, I decided that I was going to make a radio control plane from Dollar Tree foam board with a 20 foot wingspan. Yes....I said twenty foot wingspan. Currently the fuselage is 9 1/2 feet long and the wing measures in at 20 feet 5/8 inches. It is very massive and I am really hoping it works well and flies. I came to RCH, many months ago, after finding Tony's videos on YouTube. Tony and many other RCH members have been helping me out with some details that I really knew nothing about. Tony has been an invaluable asset to me in regard to my big plane. He is actually responsibly for picking out the motor and ESC for me.

If you'd like to see my previous videos on this plane, everything starts on post number 52 of this thread. You'll find it on page 6. There is quite a bit of video that I've shot from the first bit of planning through the results that I have now. I'll be uploading another video in a few minutes from now to show the size of my plane and some changes from the original design thoughts. Take a look and give me you comments, suggestions, and whatevers, lol.
 

Tony

Staff member
Yes, everything is going to be on video with the heli.

Just an FYI, posting page numbers of a post will work for some, but not all. People can change how many posts they see per page. The default is 10, but you can go all the way up to 100 posts per page I think. That would put your post above on page 1 for them, or page 2 for those that have it set to 50 posts per page. Just letting you know. Hyperlinking, or as you did, stating the post number is the best way to do this.

And being 182 posts into this thread, isn't it a little late to be doing an introduction lol.
 

Derek

Well-Known Member
Oh....i didn't know that the settings could be changed like that. I just don't ever mess with them enough.

As far as "late introductions"....of course it's late...for you, Lee, Kyle, and Gaba and such, but there have been dozens of new members in the past several weeks. I'm just trying to "toss out a bone" to those that are really new and show them what I'm making. So far, everyone seems pretty impressed and I just wanted to share it with the new people, too. That's all, lol.

Anyway...here's the newest video update on my big plane...."The FB Albatros"
 
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BOKI

Member
mountaindew76; Derk can't wait to see your plane! also miss seeing you on Phoenix Sim online! The Best! Dave
 

Tony

Staff member
I'm with you in that I don't like the look of that nose at all. Just doesn't look right.

Here are some suggestions that I would do if this were my plane. And I know after all of your work, you don't want to hear this, but... Put the plane back as it was. Triple stack the fuse like you had it and put the motor back in teh rear of the wing. If you need nose weight, then put those massive batteries right there in the nose. You can extend the nose a hair if you need to push the weight further forward. Think about it, Those batteries are going to weight more than the tail section and the motor combined. So, you can use the batteries to set the CoG.

The reason I say to go back to the triple stack design like you had is it will add stability to the plane. Right now, that plane reminds me of a pylon racer with the wing that low. Or like a standard glider. However, a standard glider is made to slice through the air, and they can get going pretty fast because of their design. With this plane, you are wanting flight stability and not something that is just stupid fast. Think "Cessna" or "Ikon A5" here. High wing on both, both made for stability and easy flying. The Ikon A5 though is a pusher and made to land on water. anyway, just think of the design.

I know you can get enough of the battery weight up to the nose to do what you are wanting. I would try to put the batteries as LOW as you can get them with the wing as HIGH as you can get it. This will be like hanging a plant from a basket hanger. Think about it. If you were to just run teh dowel rods through teh center of the pot and hang it that way, it would want to tip over. But, if you put the hook farther ABOVE the pot, the pot is going to hand down and it's going to stay there. VERY hard to flip it over, but I"m sure you are not wanting to do stunts with this thing. Hell, just the weight of the plane and the size of the wing won't allow you to do that because of the force that would be on the wing.

Okay, now that I have said that, lets talk about wing mounting. You already know my ideas of wing stability. It's again, like the Cessna. You are going to need supports. Again, you will have to raise the wing up for this to be effective. The closer you can get the wires to 45º to the wing, the stronger it's going to be. However, 25º-30º will work as well, or is it 60º-65º..., either way, I think you understand what I mean. It's like a tent poll and your runners coming off of it. If you have them close to the same angle as the poll, it won't take much to break them or have a failure. but if you can push them out even further and make more of an angle, it will be more sturdy.

to mount the wing, I would use bolts. No rubber bands, only bolts. Nylon 1/2" bolts can work to save weight. I would use no less than 4, suggested 6. For this you will have to redo the fuse, but not as drastic as you have done it in the video. You will have to add to the side of the fuse so the wing has more of a base to sit on. I would do a full tube like you have now on yoru fuse for the top section, but then do a triangle for the center section and leave the single section at the bottom. This will add a lot of needed strength to the plane. It will look good depending on how you do it, and if you leave it somewhat open, will not restrict the air flow much at all.

I think that is it lol. If I think of more, I will update. Sorry for the 3+ hour delay in watching it, read my blog to find out what I was doing over that 3+ hours...
 

Derek

Well-Known Member
mountaindew76; Derk can't wait to see your plane! also miss seeing you on Phoenix Sim online! The Best! Dave

Thanks BOKI! The plane is coming along....slowly, but it's coming. In regard to Phoenix Sim...Yeah...I've missed it greatly. It's alotta fun to fly with you guys. My work schedule has really been full and not allowing me much spare time. Hopefully that is over and I can have some "home-time." I'll be looking to fly online with ya's.

- - - Updated - - -

Hey there, Tony! I'm not entirely sure that I understand what you are talking about with the changes that you are suggesting. Can you do what I did and go to Paint and draw up a simple side profile of the fuselage with the changes that you are talking about? You are very right about NOT wanting this plane to be "stupid fast" lol. I don't want that at all. I would have no troubles making the plane a "pusher" (as I originally wanted).
 

Derek

Well-Known Member
For those of you that have watched my "update" videos and have followed my progress of this plane...if you have any suggestions, please be sure to voice them. I'm certainly no "pro" builder and I could use all the suggestions possible.
 

Derek

Well-Known Member
No rush, Tony! I'm just up and killing time until 7am (8am your time). I'll be going to bed then and I'm working the next 2 days.

I'm gonna start working on the servo placement for the elevator and rudder. No matter what changes in the front of the plane, the tail end will stay the same, so I can work on that until I hear back from you. I'm gonna also try to re-read your post when you were talking about "triple-stacking" the fuselage like I had it and see if maybe I can understand it. Text is just hard to comprehend sometimes.
 

Tony

Staff member
Yeah, it's going to be a very long time before I can draw anything to explain what I'm seeing in my head. I suck at drawing and I'm not even going to try. I don't know how to explain it though. I guess keep it like it is...
 

Derek

Well-Known Member
I did re-read your post, so let me try to explain what I think I'm understanding.

Are you saying to make the plane, just as I had it before but extend the nose a bit and use the batteries as a ballast in the nose to balance the CG?

...still having the triple stacked nose (or cockpit) and just extend the nose, being the bottom tube.

is that about right?
 

Derek

Well-Known Member
I could probably be ok with that.

Do you think I should angle the motor downward a bit? I'm asking because you have much more experience than I do and you know what motor I am using (245kv).
 

Tony

Staff member
Yes, if the motor is in the front, is needs to be angled down, and slightly to the right.
 

Derek

Well-Known Member
What if the motor is behind the wing, as originally planned? Do you remember how I had it set up before? Like this:

GEDC0002.jpg

Would the motor need to have a down and right angle?

GEDC0002.jpg
 

Tony

Staff member
Actually, if I remember correctly, it would need an up and slightly left angle if it were a pusher.
 

Derek

Well-Known Member
oh! Yeah...I can picture that in my head...with the motor placement the way it was before, if left at a level position, the motor would actually push the nose down. I'm hearin' ya again, lol. I've gotten as far as I can, tonight, with my new Wing, so I'll just get my big plane sections out and see what I can get done in the next 3 hours.
 

wolfman76

Well-Known Member
man that bird is a monster derek i agree with tony on using wing bolts with the sixe and weight of this bird rubber band just will not hold i think... deff. reinforce the fuse real good maybe use the bolt ends not sure what they are called but they are metal and when you tighten wing bolts they will bite into the ply from the underside of the fuse.. i have what i am refering to for wing bolts on my p-51 i will snap photo and post it up soon as i get my new phone since my galaxy went swimming other day waiting on the replacement... i had a OOPS moment
 

Derek

Well-Known Member
Thanks for checkin in on me, Kyle! I certainly know that rubber bands will NOT work with this plane. I was just giving that as an example of the motorglider that was made by ExperimentalAirlines, on Youtube. I made one very similar to his and I really like it. However, using wing bolts and "T Nuts" to hold the wing to the fuselage would probably work real well and it probably wouldn't be that hard to install those at all.

Anyway...keep watching...i'm hoping to post an update tomorrow sometime on my day off.
 
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