Old_Pilot's blog View Details
Posted by Old_Pilot | May 06, 2021 @ 09:14 AM | 1,121 Views
Our club has a Scale/Warbird Fly-In coming up in early June, and I've been trying to decide what to build.......
Finally settled on the Northrop YA-9......I built her a year ago and she died due to a dumb electrical mistake
on my part.....Gonna try again

Build log will be here: https://www.rcgroups.com/forums/show...0#post47079263
Posted by Old_Pilot | Apr 30, 2021 @ 03:22 PM | 1,415 Views
Venom I was underpowered, Venom II was tail heavy......Venom III.....Weather permitting, she'll fly either tomorrow or Sunday.......the Avery crystal clear vinyl graphics are superb.........The inspiration for this model came from my Einzpfeil, and the Concorde wing........so I mashed them together
Posted by Old_Pilot | Apr 30, 2021 @ 05:46 AM | 1,423 Views
First dry fit
Posted by Old_Pilot | Apr 28, 2021 @ 08:47 AM | 2,078 Views
Found a better "nacelle". 20oz double wall coffee cup. Increased the ground clearance a bit....headed to the shop to cut a new airframe.

Cup dimensions: 3.25" ID inlet (82.55 mm) A= 8.3 in^2
2.19" ID outlet (55.63 mm) A=3.76 in^2
6.5" overall length
9.3 deg included angle (taper)

Fan dimensions: 2.76" ID Fan Body A =5.98 in^2
1.27" OD Hub A=1.26 in^2
FSA = 4.722 in^2

3.76/4.722 = 80% FSA Efflux

Estimated thrust = 3.45 lbs each fan
Posted by Old_Pilot | Apr 16, 2021 @ 07:49 AM | 3,803 Views
Well, she flew just fine......until I hit a dirt clod on the runway and sheared the blades off both fans......I knew the fan intakes were low, but I thought I had enough clearance....Oh well, I'll go back to putting the fans higher on the airframes....live and learn
Posted by Old_Pilot | Apr 01, 2021 @ 12:35 PM | 6,719 Views
Venom II flight ready, with Avery clear graphics
Posted by Old_Pilot | Apr 01, 2021 @ 08:11 AM | 6,702 Views
For those of you that like to print your own decals, Avery now has DIY Decal Vinyl. It's crystal clear and accepts Inkjet ink....
You have to water proof the ink, but in the long run it'll save you from having to buy custom graphics. Available at most
office supply stores.

https://www.avery.com/products/labels/61512

Here's the clear coat

https://www.krylon.com/products/uvre...clear-coating/
Posted by Old_Pilot | Mar 28, 2021 @ 06:33 PM | 7,771 Views
30" WS, (2) 70mm Fans w/ 3500kV motors, 65Amp ESC's, Lemon 6 channel receiver, (2) 2600 mah 50 C 4S batteries, 19 gr metal gear digital servos.
50% KF-2 airfoil

Maiden next week
Posted by Old_Pilot | Mar 27, 2021 @ 10:08 AM | 9,718 Views
Found a couple of previously flown 70 mm fans...so I mashed together the Einzpfeil and the Vulcan

30" WS, (2) 70mm fans, KF-2 wing (what else...lol)......Nacelles are Lenny's Sub Shop drink cups

I cut it out yesterday afternoon. Depending on the paint job, I could possibly finish it today
Posted by Old_Pilot | Mar 25, 2021 @ 10:28 AM | 6,132 Views
Because I drove her sister into the ground like a tent stake......got into the sun and everything went white....things happen much too quickly at 30 feet and 100 mph......
Posted by Old_Pilot | Mar 20, 2021 @ 07:46 AM | 13,399 Views
My friend Thomas B. , a teacher in Cologne Germany, sent me this...The Einzpfeil is now famous.........LOL..Oh, Flugmodell is the largest model airplane magazine in Germany
Posted by Old_Pilot | Mar 16, 2021 @ 01:24 PM | 12,388 Views
So I was bored.......cut and built a CG Balance frame....$2 in material. The ones I saw on line cost anywhere between $17 to $150......took about an hour to draw and program it, and a little more than an hour to cut it
Posted by Old_Pilot | Mar 12, 2021 @ 09:11 AM | 10,974 Views
I didn't like the first one....not very rigid....so the old engineer in me took over and I built a beam......
Posted by Old_Pilot | Mar 03, 2021 @ 08:05 AM | 8,218 Views
So I made an adjustable cradle for airplane fuselages.......some 1/4" ply, some screws and wing nuts, and some foam pipe insulations
Posted by Old_Pilot | Feb 26, 2021 @ 05:50 PM | 11,374 Views
Now I can get back to building airplanes
Posted by Old_Pilot | Feb 04, 2021 @ 05:29 PM | 15,146 Views
Gonna pause for a bit on building airplanes....have a new CNC machine on the way...
Posted by Old_Pilot | Jan 29, 2021 @ 03:14 PM | 9,594 Views
Gonna try this little girl again....but this time with a 48" nominal wing, and a wire cut fuselage.....
the numbers look good, and the templates seem to work....
Posted by Old_Pilot | Jan 27, 2021 @ 05:16 PM | 11,796 Views
And a new toy today..20" hot wire bow...had everything except the spring.....wire is a light gauge B string

1/2" aluminum channel frame with 3/8" spruce fillers ,
1/2" sq oak dowel spreader with 1/2x1/16 flat bar stiffeners and pivot
and a whole passel of SM screws
Posted by Old_Pilot | Jan 24, 2021 @ 07:54 PM | 10,737 Views
Phase II of shop/CNC refit....new 25x56 combo vac/t-bolt cleat table