RC scratchbuilt Albatross in progress  
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RC scratchbuilt Albatross in progress - 4/18/2007 6:55:29 PM   
www.stef.com


 

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Hi everyone. I'm scratch building a large brushless electric scale Albatross. I'm basing it off of stuff from the internet as well as an old monogram model I bought off Ebay. It will have a two piece wing, a video camera in the nose, and still camera in the aft belly. I though I would share the completed chassis and retract mechanism that I will build the fuselage around. The final wingspan will be 2.3 meters. You can see a video of it working at the following link. http://www.stef.com/Chassis.mov Now on to the wings!! (I tried to upload pictures here but I'm having problems)

http://www.stef.com/Chassis.mov
       Post #: 1

RE: RC scratchbuilt Albatross in progress - 4/20/2007 2:00:40 PM   
cargo1


 

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i'm glad to see that there are other people out there doing this kind of stuff. am trying myself to do what you have done, that is an awesome plane to myself to. as soon as the temp lets me out to my workshop i myself will be doing a dc3 settup. keep going!

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       Post #: 2

RE: RC scratchbuilt Albatross in progress - 4/21/2007 9:32:39 AM   
Fast Freddy


 

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From: Madison, WI, USA
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Stef,

That is one awesome retract mechanism you've designed! Simply brilliant! Can't wait to see the rest of your progress!

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RE: RC scratchbuilt Albatross in progress - 4/21/2007 3:24:37 PM   
www.stef.com


 

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Thanks guys, I'll post more in a few weeks -stef

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RE: RC scratchbuilt Albatross in progress - 6/26/2007 3:14:40 PM   
www.stef.com


 

Posts: 32
Joined: 11/12/2004
From: , CA, USA
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Hi everyone, I've made a bunch of progress.

I'm very near completion of the basic construction and then I can move on to finish work.

So far everything you see weighs 5.9 lbs or 2700 grams - so I am l on my way to meeting my target weight between 7.8 and 10.4 lbs. or 3538 and 4717 grams

Once the entire model is sheeted with 1mm balsa, I will cover everything with 3/4 ounce fiberglass.

Thanks BigR for you advice on using an elevon mixer for my differential thrust, works perfectly!

I've uploaded another progress video here:

http://www.stef.com/JuneProgress.mov

I hope you enjoy it and any comments, tips, or suggestions are greatly appreciated.

Again I try to upload pics here and I keep getting an error. I will try to figure out what is up and will post pics if possible.

-stef

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       Post #: 5

RE: RC scratchbuilt Albatross in progress - 6/26/2007 3:30:54 PM   
www.stef.com


 

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Okay, problem solved, here are some pics -stef








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RE: RC scratchbuilt Albatross in progress - 6/27/2007 2:52:13 AM   
will in the 985


 

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nice. are you going to have plans available? because id be interested to build one. and those planes are awesome!

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RE: RC scratchbuilt Albatross in progress - 6/27/2007 3:13:18 AM   
Bad_Daddy



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WOW! Very impressive, and full of tremendous ideas!

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RE: RC scratchbuilt Albatross in progress - 6/27/2007 8:08:09 AM   
www.stef.com


 

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Thanks for the nice comments guys As for plans if enough people want them I would be happy to clean them up, write up some instructions, and make them available. How would you want them? As a pdf where you take it to a printer, or paper plans? I'm looking to have this thing flying early September so I could probably have plans dialed in and ready a month after that. -stef

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RE: RC scratchbuilt Albatross in progress - 6/30/2007 10:59:31 PM   
LuftwaffeOberst



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OMG Great work! Man I hope I get that creative one day.



Luftwaffe Oberst
Aero Modelers Club
AMA District II
Pulaski, NY


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RE: RC scratchbuilt Albatross in progress - 7/6/2007 1:07:52 PM   
www.stef.com


 

Posts: 32
Joined: 11/12/2004
From: , CA, USA
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Thanks

I've got an identical thread over at RC groups. So this update is pretty much the same as I've posted there.

So I balanced and finished my spinners and props. I printed and sealed all my waterslide decals. I've decided to do a weathered look for the whole plane. I think it looks more real and is also a lot less work than trying to make every surface and detail perfect. Even though I have a lot of building left, I went ahead and took a few pieces all the way through the finish process so I could get an idea of how much time would be involved and how much work I was willing to do. My riveting was pretty shaky but I'm sure my technique will improve. I'm going for the 5 foot read anyway. I'm very proud of my grease trails though!

I hope you enjoy the pics -stef






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RE: RC scratchbuilt Albatross in progress - 7/6/2007 5:43:21 PM   
g_boxwood



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Your work is simply amazing!!! Keep it coming please!

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RE: RC scratchbuilt Albatross in progress - 7/13/2007 6:27:31 PM   
www.stef.com


 

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Thanks again for the nice comments!

I am progressing rapidly now, definitely kicking it into high gear to meet my self imposed deadline. I want to finish by August 20th because that is when I go off on a family vacation. First flights, with video of course, will be the weekend of September 15th/16th. I will post the video soon after that.

Cowlings:

I resumed work on the wings, this time with the top half of the engine cowlings. I had previously molded these forms wrapping saranwrap, then 6 oz glass, then more saranwrap around my wood form. They are featherweight at this point, and will have increased strength and stiffness when bonded to the wings, firewall, and bottom half. I roughed out the depressions for the exhaust stacks, and created fillets both inside and out with expoxy and microballoons. I will smooth the transistion later, and I will add the exhaust pipes at the very end.

Fuselage:

I finished sheeting the fuselage. Some parts went more smoothly then others. There are quite a few difficult transitions. I had to redo one section near the tail as I didn't correctly anticipate the way the tail's underside flows into the rear chines - I will update my plans accordingly should anyone want to build one of these for themselves. I then began to glass the fuselage with 2oz in the forward areas and 3/4 oz in the rear. I doubled up certain areas that I know I will be doing considerable sanding and thin filling.

Wheel wells:

After crossreferencing pictures of a real albatross, I decided to make my wheel wells more realisitic by adding the rounded section you can see in the pic, and narrowing my strut flaps to a more accurate dimension.

Front hatch:

I wanted to the nose section into a large removable hatch so I can easily service the still camera, the video camera, and the front landing gear mechanism should it need servicing. I knew I would end up with a thin fiberglass shell for the hatch so I did a sloppy basket weave-like layup of stringers. I used copius amounts of bondo to finish the form, drew and masked my hatch line, used furniture wax for mold release, applied the equivalent of 3 layers of 2 oz glass, and cut and released the part when cured. The remaining shell is very light and strong, and I plan to use a snap on tongue and groove type connection to the fuselage to ensure a watertight seal.

Until next time -stef





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RE: RC scratchbuilt Albatross in progress - 7/14/2007 12:28:26 AM   
red head


 

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VERY NICE , brings back a lot of memories, I flew crew on one in the early 60's. ENJOY !!! RED

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