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Old_Pilot's blog
Posted by Old_Pilot | May 20, 2015 @ 03:10 PM | 754 Views
A few of us had a kinda sorta contest to come up with an RC version of the $10 Wal-Mart foam glider called the Raptor......I decided it needed to be a twin, and now sorta looks like the TU-95 Bear....but with only 2 it's called the TU-47 1/2 Cub.....Started on it Monday....waiting on CW/CCW props and 20A ESC's....but that's why I like to mess with foam....motors are 2200kv Grayson Mini Jet, 4.75x4.75 props and a 2200 mah 30C 3S.....we'll...Continue Reading
Posted by Old_Pilot | May 07, 2015 @ 02:43 PM | 899 Views
Posted by Old_Pilot | Apr 14, 2015 @ 06:02 PM | 1,736 Views
Just finished this one....cut her out yesterday morning.....tweaked a few dimensions here and there from the first design.......

Video of maiden

Einzpfeil 3 70 mm Fan (3 min 23 sec)

Posted by Old_Pilot | Apr 10, 2015 @ 08:09 PM | 1,490 Views
a "one-sheeter"...30" WS x 24" OAL, 22 OZ AUW, 2217/8 1500 kV, 8x6 3-blade, 2200 mah 30C, 40A ESC, MG90 servos, Lemon 6-channel Featherlite......loosely based on a Russian Concept bomber.....maiden tomorrow.....
Posted by Old_Pilot | Mar 19, 2015 @ 06:01 PM | 2,854 Views
No complaints

Motor: Powerforce G15 (LC3542/6T) 920 kV 42A max 36A load
ESC: 40A
Batteries: 3300 3S or 2200 4S
Prop: 11x6 (ESC gets a little hot) probably change to a 10x6
Servos: Towerpro MG90S Micro
Receiver: Lemon 6 channel mini (DSMX/DSM2)

Post maiden notes:
1. PLENTY of power (4s)..unlimited vertical at FT.
2. Plenty of aileron and elevator control....dampened with 35% expo and 80% travel adj in trans.
3. Not enough rudder....already changed.
4. Less than 10 deg of flaps and she'll all but stop in mid air....
5. She'll land dead stick with tip stall...she'll land even slower with flaps....
6. Good sport plane with a 3s....unbelievable with a 4s.......and I'm sold on sewn hinges !

Altagerra Maiden (3 min 35 sec)

Posted by Old_Pilot | Mar 03, 2015 @ 06:14 AM | 2,210 Views
2nd entry in BBCC 6......wont's start on it until after I finish the Altagerra
Posted by Old_Pilot | Feb 19, 2015 @ 05:17 PM | 4,365 Views
35" foam combat ship derived from a 1964 C/L stunt/combat wing called the Blue Bayou....haven't flown her yet......will post video when the ice melts off the runway !...Continue Reading
Posted by Old_Pilot | Feb 06, 2015 @ 03:22 PM | 2,720 Views
Scratch-built Foamie Contest Build - Einzpfeil 2.0 - Proof of flight...sorry for losing sight of her occasionally. I was busy watching the airplane and not the viewfinder....she's plenty fast and maneuverable...though I don't have the stabilizer gains set correctly....she'd flutter with the stabilizer engaged, but only at full throttle.....

Einzpfeil 2 Maiden (5 min 20 sec)

Posted by Old_Pilot | Feb 01, 2015 @ 01:05 PM | 2,257 Views
This one is a little larger than Einzpfeil 1.0 and not quite as big as Doppelpfeil 2.0....single 70 mm fan, no winglets........Continue Reading
Posted by Old_Pilot | Jan 15, 2015 @ 02:41 PM | 2,681 Views
Sorry for the blank spot at the beginning, but I had to launch her and then grab the camera.....

Einzpfeil Maiden (2 min 29 sec)

Posted by Old_Pilot | Jan 09, 2015 @ 04:39 AM | 2,397 Views
After a few tweaks..........Was nervous about flying her, but after big Al told me she's easy to fly, I flew her the rest of the day......
I'm pleased.....the goal was to develop a more aerobatic aircraft , and she seems capable of just about anything

NasTee Maiden (4 min 56 sec)

Posted by Old_Pilot | Jan 02, 2015 @ 10:23 AM | 1,831 Views
Progress pictures are under the Uberpfeil build, but here's the finished product....will mount the servos and push rods this morning
Posted by Old_Pilot | Dec 03, 2014 @ 01:40 PM | 2,289 Views
Here's another one off that I built for BBCC 3 (almost 2 years ago) and never flew. She was underpowered and tail heavy.....I fixed that and flew her for the first time this morning......she's another one of my one off's that has never been far as I know this is the only RC replica of the original......

Bristol 138A Maiden (3 min 7 sec)

Posted by Old_Pilot | Nov 20, 2014 @ 05:31 PM | 2,185 Views
Doppelpfeil 1.0 Maiden (1 min 45 sec)

She's a handful..working on Doppelpfeil 2.0.......

flew her 5 times was that "Oh let's put her up one more time" that killed her in the sun, lost orientation, and she went in hard....BUT..the foam board crumpled like the front of a Mercedes, saving all the electrics........
Posted by Old_Pilot | Nov 11, 2014 @ 03:53 PM | 3,157 Views
This is for all the guys on know who you are !

I've decided to try to build a 3D-ish I stole the stuff I liked from 4-5 ARF's and came up with this....takes (2) sheets of 3/16" Elmers board and a 2 liter bottle for the canopy.....I'll revise and annotate once I build her, but you guys get the idea......As always, drawings are on 36x48 paper.. foam board blanks are 40x30.

I did a box fuse because I don't like batteries, ESC's, and Receivers flopping around in the wind !

This ain't Dollar Tree foam !

Preliminary electrics:


Golden Power 2217/6 1500 kV...

No. of Cells: 2 - 3 Li-Poly
Kv: 1500 RPM/V
Max Efficiency: 80%
Max Efficiency Current: 8 - 22A (>70%)
Load Current: 1.6A @10V
Resistance: 0.100 ohms
Max Current: 28A for 60S
Max Watts: 311W for 60S
Weight: 70g / 2.45 oz.
Size: 27.5 mm x 30 mm
Shaft Diameter: 4mm

Buddy RC

Prop : APC E 8060 or 9060 (probably change, but I'm sure either will fly her)

Battery 2100 mah 20C 3S


9 gram...Continue Reading
Posted by Old_Pilot | Oct 31, 2014 @ 10:27 AM | 2,893 Views
I gave up on the CF 105 Arrow after several attempts to get the EDF mounted......came back into the house, sat down at the computer and came up with this......another morph of the Jetstream....

I'll post the drawings and patterns if anyone is interested.

why I gave up on the 105...I fired up the EDF and it wouldn't stay in the bulkheads....nothing seemed to want to stick to the plastic housing of the EDF....'course, watching the motor go through the front of the aircraft in mid-flight might be worth a look or two....or.....once!

Here's the drawing and the patterns.....thanks Rick !

Update 11/5/2014: fitting out and bench testing this morning....and everything was going fine until I heard "CLUNK" and all the fan blades exited the rear of the aircraft and imbedded themselves in the foam backstop I'd set, two more hatches in the bottom of the fuse and a new impellor. good to go !

Update: 11/7/2014........Too much weight and not enough thrust....and now I have a I eliminated the lower fuse, added another fan and stuck them to the side of the fuse...added a little bit of wing and got the elevons in the jet stream....Continue Reading
Posted by Old_Pilot | Oct 23, 2014 @ 01:36 PM | 3,030 Views
Three more to week

Added 3/8 sq balsa to front of wing and sanded to the shape of a leading edge.

Update: 10/28/2014

APCE 9050 prop

Golden Power 2217/6 1500 kV...

No. of Cells: 2 - 3 Li-Poly
Kv: 1500 RPM/V
Max Efficiency: 80%
Max Efficiency Current: 8 - 22A (>70%)
Load Current: 1.6A @10V
Resistance: 0.100 ohms
Max Current: 28A for 60S
Max Watts: 311W for 60S
Weight: 70g / 2.45 oz.
Size: 27.5 mm x 30 mm
Shaft Diameter: 4mm

Buddy RC