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RE: ... - 5/4/2008 3:46:09 AM   
kregan



Posts: 1621
Joined: 11/5/2004
From: Highland, MD, USA
Status: offline 		Another thorn on the rose that is 2.4!

http://tinyurl.com/4kzpev

Watch the heat inside your plane if you are running a FASST system.
Seams that some Rx's are shutting down if they get to hot.

(summer is coming)


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Kelly

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RE: ... - 5/4/2008 3:55:51 AM   
thunder21



Posts: 633
Joined: 8/27/2005
From: College Park, MD, USA
Status: offline 		Kind of windy today at the field, but a nice day nonetheless. I took some pictures of the Albatros and the Me-109 together. They were both Germany's front line fighter pretty much so through each of the wars they were used in. Both of these models are 1/6th scale. The Me-109 shows it's small size next to the Albatros.

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< Message edited by thunder21 -- 5/4/2008 3:57:22 AM >

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RE: ... - 5/5/2008 12:50:10 AM   
kregan



Posts: 1621
Joined: 11/5/2004
From: Highland, MD, USA
Status: offline 		Mark, they look great! Nice job!



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Kelly

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RE: ... - 5/5/2008 12:52:49 AM   
kregan



Posts: 1621
Joined: 11/5/2004
From: Highland, MD, USA
Status: offline 		OK, the paint saga...
Sanded and prepped everything. Cleaned and prepped with wax,grease,silicone paint prep.
Tacked everything and shot the epoxy primer that Dupont recommended for bare fiberglass.

Everything fish eyed except the canopy and landing gear. Now I have had fish eye on occasion,
but this was unreal! Like I wiped the parts down with oil befor I painted or something!!! All the
fiberglass parts were a complete mess. At that point I stopped for the night.

Today, Sunday, I decided to go forward with the canopies so I could see some progress
and get something finished.

I spent the day wet sanding and prepping them, then shot the color. It looked pretty good so I
moved ahead with the clear coat. They turned out OK but I have a lot of dust nibs in the clear
coat. That is to be expected with a gravel driveway and dust everywhere. I don't have a paint
both so I do the best I can.

As for the fiberglass parts, I pretty much have to start all over. I will prime with high build
primer/filler then sand 90% of it away. I am disappointed that I could not get closer to finishing
but thats that way it goes with paint.


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Kelly

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RE: ... - 5/5/2008 1:04:33 AM   
weathervane



Posts: 1184
Joined: 6/8/2006
From: Baltimore, MD, USA
Status: offline 		I wish my paint jobs looked that bad. They are coming along nicely.
-Andrew


quote:

ORIGINAL: kregan

OK, the paint saga...
I am disappointed that I could not get closer to finishing
but thats that way it goes with paint.




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RE: ... - 5/5/2008 1:38:27 AM   
kkling77


 

Posts: 80
Joined: 10/20/2004
From: Laurel, MD, USA
Status: offline 		Ahhhh, I can see a spot from here. Can you do the red one over again......[)]

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RE: ... - 5/5/2008 1:51:33 AM   
thunder21



Posts: 633
Joined: 8/27/2005
From: College Park, MD, USA
Status: offline 		Thanks, Kelly. Your planes look great. The paint looks like it matches perfectly.

I get fisheyes when the paint is too thin. I've found that different surfaces require different amounts of thinner. With oil based paint, water from the air compressor can lead to fisheyes. I use water based paint so if I start to see fisheyes develop, I use a lint free rag to wipe the area and reapply the paint. The surface tension is usually improved at that point and the fisheyes usually don't reappear. I don't know if this is an option when using oil based paint. Painting a mist coat first will also help eliminate fisheyes.

(in reply to weathervane)
       Post #: 5282

RE: ... - 5/5/2008 2:18:31 AM   
kregan



Posts: 1621
Joined: 11/5/2004
From: Highland, MD, USA
Status: offline 		I have some red finger paint! I'll let the twins work on it!

quote:

ORIGINAL: kkling77

Ahhhh, I can see a spot from here. Can you do the red one over again......[)]



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Kelly

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RE: ... - 5/5/2008 2:28:36 AM   
kregan



Posts: 1621
Joined: 11/5/2004
From: Highland, MD, USA
Status: offline 		I made 3x4 inch squares of balsa and covered them with the Monokote. The
paint shop matched it with the computer. The blue is a perfect match and the
red is a little lighter under the shop lights but it is real close.

The red needed about 5 or 6 coats to cover, the blue only needed 3 or 4.

The fish eye was strange... never had it like this before. On top of that all
the parts were prepped at the same time with the same materials and only the
fiberglass fish eyed. It must have been the release agent from the mold but
after sanding with 220 by hand and a DA sander plus the paint prep I don't know
why it would be a problem.


quote:

ORIGINAL: thunder21

Thanks, Kelly. Your planes look great. The paint looks like it matches perfectly.

I get fisheyes when the paint is too thin. I've found that different surfaces require different amounts of thinner. With oil based paint, water from the air compressor can lead to fisheyes. I use water based paint so if I start to see fisheyes develop, I use a lint free rag to wipe the area and reapply the paint. The surface tension is usually improved at that point and the fisheyes usually don't reappear. I don't know if this is an option when using oil based paint. Painting a mist coat first will also help eliminate fisheyes.



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Kelly

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RE: ... - 5/5/2008 12:33:58 PM   
SpitfireMkII


 

Posts: 149
Joined: 12/2/2007
From: , MD, USA
Status: offline 		Kelly,

I have experienced the same problem with my glassed planes, maybe vapor from the curing resin ? Over fresh primer you should not see any problems but I have. I ran the list like you, water ? compressor oil, finger oil but none of these seem to be the cause. I have found with the latex paint (Acrylic too) that a hairdryer to quickly cure the paint and then another coat and it disappears....very strange. I asked Roy Vailliancourt about this ( scale designer who is kind of the "father" of latex sprayed warbirds) and he could offer no clues. I have even had the fisheyes on the second coat where none existed before, no, its not water, I have two moisture traps in the line.

Keep us posted if you figure anything out....

MT

(in reply to kregan)
       Post #: 5285

RE: ... - 5/5/2008 5:03:19 PM   
Montague



Posts: 4606
Joined: 4/19/2002
From: Laurel, MD,
Status: offline 		That looks great, Kelly. I'm sure you'll get that stuff figured out.

I'm going to be shooting some clear coat on my tiger moth real soon now, I think.

This weekend, I finally managed to get the "how fast" and "how high" packaged together on to a bit of scrap balsa that I can tape to the underside of a wing and take readings from. I was playing with my LT-40, and was surprised by some of the numbers recorded.

I took the plane way way waaaaaaaaaaay up there. The "how high" claimed just over 1,700ft, which makes sense, it was really small. Cruising around at about "normal" training altitude, it was recording between 240 and 320ft (I took several samples).

Once the plane was way up there, I did a terminal velocity dive with power off, and recorded 90mph. I also recorded 90mph in a full throttle dive at a moderate angle. I didn't get a level flight max speed. But I did get a couple of readings around 20mph while parking the plane in the high winds, and one around 15mph just before stalling. Cruising back and forth at low throttle was mostly reading around 40-45mph, which is about right.

I'll play with it some more and then move it to some other planes to see what they read for comparison. I'm wondering how high up the Wild Hare gets during a normal IMAC routine, for example. And, of course, I need to ge the airspeed of the Mossie. And anyone else wants to try to readings from their planes.

< Message edited by Montague -- 5/5/2008 5:04:38 PM >


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RCCA 560

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