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Posted by Old_Pilot | Jun 11, 2021 @ 01:09 PM | 32,315 Views
I took Dan Sponholz's Bloody Baron and scaled it up to a 36" wing span, and adapted it to the materials and techniques that I normally use to build foamies. The power plant is larger as is the battery, ESC, and servos. Wish me luck.I'll post progress pic's and a flight video if successful.
Posted by Old_Pilot | Jun 05, 2021 @ 04:48 PM | 34,573 Views
We had our Scale/Warbird Fly in today at our club, the Memphis PropBusters....
we had close to 50 pilots and almost that many spectators....It was AWESOME..Enjoy!

There's 35...Continue Reading
Posted by Old_Pilot | May 31, 2021 @ 01:02 PM | 22,369 Views
Even though the USAF never nicknamed the A9 like the A-10, I'm gonna christen her the A-9 Hedgehog
Once I got her trimmed (1st and 2nd flights) and changed to a heavier battery, she was easy to fly

Northrop YA 9A II (2 min 8 sec)

Posted by Old_Pilot | May 28, 2021 @ 06:33 PM | 27,613 Views
Just finished this one for one of our new club members, a 15 year old high school student.
He's the nicest, most polite kid I've encountered in a long time.
And he can fly the wings off almost anything .....

And he wants to learn to build !

27 "(685mm) WS, 70mm 6 blade fan, 3000kV motor, 65A ESC, 17gr metal gear digital servos,
Lemon 6-chanel DSMP receiver, 2600mah 45c 4S battery .. ..and my new coffee cup ..... lol
Posted by Old_Pilot | May 23, 2021 @ 09:11 PM | 19,529 Views
This is what happens when you put a high performance aircraft in the hands of a high performance pilot

Venom III (2 min 43 sec)

Posted by Old_Pilot | May 20, 2021 @ 01:15 PM | 32,887 Views
Down to push rods and control horns. A friend of mine is going to 3D print me napalm cannisters for the 10 hardpoints under the wing...The graphics are superb.....between a new Epson 2760 printer and the Avery vinyl, I can't buy anything any easier or better
Posted by Old_Pilot | May 15, 2021 @ 04:59 PM | 32,286 Views
All I can say is Wow.....this thing is a bullet

Venom III (2 min 2 sec)

Posted by Old_Pilot | May 06, 2021 @ 09:14 AM | 5,377 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 | 4,768 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 | 4,737 Views
First dry fit
Posted by Old_Pilot | Apr 28, 2021 @ 08:47 AM | 5,312 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 | 7,002 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 | 9,813 Views
Venom II flight ready, with Avery clear graphics
Posted by Old_Pilot | Apr 01, 2021 @ 08:11 AM | 9,813 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.


Here's the clear coat

Posted by Old_Pilot | Mar 28, 2021 @ 06:33 PM | 10,869 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 | 12,825 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 | 9,203 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 | 16,525 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 | 15,447 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