here is my Radian Pitcheron mod

Using four custom designed 3D printed PLA parts.
Two HS-225BB 27g servos drive the pitcheron mechanism.
Wing deflection is +/- 10 mm at the wing root TE , with +/-100% aileron command.
Functional Elevator. Rudder is inoperative.
On a switch , there are three spoileron positions , { 0.0 , 2.5 , 5.0 } mm up at the wing root TE .
build pictures , stl files, etc. , are shown in the following posts

Radian pitcheron maiden flight - Movie. (2 min 22 sec)

Inspired by the work of John Ferguson , I put together a simplified version of the Switchblade 300

The wings and tail fins are fixed to the fuselage. KFm airfoils.
Control surfaces : ailerons and elevator, i.e. two servos only.
Incidence : 0-0-0
Fixed (not-folding) propeller, APC 9"x6"
Motor: RC Timer 2836/7 , Kv=1120 RPM/V , 70g
3S LiPo 1200 mAh battery
25A ESC
AUW 580g; Wing loading 12.3 oz/sqft
CG location: trailing edge of fore wing

NSB "No Switch Blade" , a Switchblade 300 look alike, maiden flight - Movie (2 min 41 sec)

No-Switch_Blade mule chuck gliding tests (0 min 14 sec)

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Quest model plane , a gift from Ron Locke. Thanks Ron !
This is a temperamental model , which took a lot of work to discipline into a flyable model.
Flying at the Bald Mountain site, after a long streak of bad weather.
Spring is coming !

Quest electric powered glider - Movie (2 min 23 sec)

The return of the GWS Slow Stick . A gift of Ed Walker.
Using the standard 46" dihedral wing , and a custom 62" polyhedral wing made from two Slow Stick wings .
Lots of good memories came back flying this classic model airplane in the tradition of " Das ugly stick " .

link to the GWS product web site
https://www.gws.com.tw/english/produ...ow%20stick.htm

The return of the GWS Slowstick - Movie (2 min 12 sec)

Motor: Turnigy Aerodrive SK3 - 2830-1020kv Brushless Outrunner
Propeller: 10"x4.5"
Battery: 3S LiPo

Purchased a Millennium Master model airplane from Andrew R.

I upgraded the stock configuration with a .10 brushless motor and a 3 blade 12"x8" MAS propeller.
Using a 40A ESC and 2200mAh 3S LiPo batteries.
The nose landing gear was also upgraded to accommodate the larger than stock propeller.

Video of the Maiden flight of the Millennium Master RC model airplane.

Millennium Master - Movie (1 min 32 sec)

relevant RCG threads :
https://www.rcgroups.com/forums/show...lennium-Master

https://www.rcgroups.com/forums/show...-Master-Review

Banner Towing
Eagle II ( Carl Goldberg )
at the Lime Ridge site.

Banner towing on the 4th of July - Movie (1 min 12 sec)

Planeprint designed Seagull glider , kit sold by Aloft Hobbies

https://www.planeprint.com/seagull
https://alofthobbies.com/products/3d...seagull-glider

after repairing the wing, moving the CG forward and reducing the servo authority , it flew beautifully:

Seagull take two , gliding after the maiden flight crash - Movie (1 min 50 sec)

the maiden flight was not successful and quickly ended in a crash :

Seagull maiden flight crash - Movie (0 min 16 sec)

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here are a few videos of the fabulous 2023 event.
A great joy, the company and the whole setting were all outstanding.

Sunset Beach 2023 Movie (2 min 35 sec)

Eluna wing based franken DLG - Movie (0 min 43 sec)

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first day testing the new camera.


raw video

Baylands Park, Sunnyvale, California. Flying the Radian glider (1 min 58 sec)

edited and scaled to HD

Baylands Park - Jan 21 2023. - Movie (3 min 7 sec)

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Won an RTF PA-18 1300 mm wingspan by FMS in their Thanksgiving Giveaway.
I am very thankful and happy about it !!!

Received it on Saturday , assembled it , and had the maiden flight on Sunday, after the rain.
Very nice flier, and super stable with the Reflex stabilizer.
Here are some pictures of the unboxing and maiden flight video.


Thanks FMS !

FMS PA 18 1300mm WS - Movie (2 min 13 sec)

Starting to put together a new version of the tow plane, using recycled material that I had on hand.
Length 46". The Aileron Wing is 2m WS.
The Airframe features a plastic gutter drain pipe.

Motor: 3542-800kv brushless outrunner from the Excalibur warmliner. Power: 672 W at full throttle.
ESC 50 A , Battery 4S LiPo.
Propeller: 13x8 MAS
AUW = 1914 g = 67.5 oz = 4.22 lb
FrSky Receiver with telemetry for Flight Battery Voltage and Motor Current


Full throttle RPM : 7900 RPM

=> Static Thrust is 5.7 lb (according to calculator , for the given propeller ) , 5.1 lb with fish scale measurement

Full Throttle pitch speed : 60 mph


Taxi test video.

Tow Plane taxi test - Movie (0 min 24 sec)

Magnus Electric carbon airframe , built and flown as a true glider.

Maiden flight at Mussel Rock , California , USA, on the coast of the Pacific Ocean. Wind: 20 mph+ , from NW.

Sold by : https://alofthobbies.com/magnus-electric-15-meter.html...

Magnus maiden flight - Movie (2 min 22 sec)

Servos used in the wings , ( just because I had them, 10 mm thickness ) , 2x Hitec HS125MG , and 2x JR DS168 MG
Elevator servo Corona DS919MG
AUW is 1105g .
Nose is GWS rubber spinner filled with ballast , total 110g ballast needed to reach specified CG , as there is neither motor nor prop..

here is the event video that my wife recorded , I just edited it for quality and length.
Lots of fun and great flying.

Three mid-air collisions may be seen.

Sunset Beach 2022 - Movie (12 min 23 sec)

link to the event thread:
https://www.rcgroups.com/forums/show...-May-1st%21%21

after my first experiments with towing with a powered dolly and simple hand launch ,
here I revisit the subject with a plain and simple dolly.

GoFlyKite (made in Singapore , ripstop wing with carbon fiber skeleton)
220g AUW

GoFlyKite - Movie (2 min 23 sec)

this is a video of the first flights of the 50" wingspan Eaglet , converted to electric power.
The model is a gift from Ronald, thanks !

Carl Goldberg Eaglet 50 electric conversion - Movie (2 min 23 sec)

Pitts 850 mm WS upper wing bash - Movie (2 min 31 sec)

Eflite Pitts 850 mm upper wing , picked up from the trash bin.

Fuselage made from two bamboo skewers and a fiberglass tube. Homemade tail group.

Motor: Turnigy Propdrive 28-26, Kv=1200 rpm/V.

Battery LiPo 3S 1100 mAh 45C. Folding propeller 9.45" x 8" .

Static test : 16 A , 188 W , at full throttle.

Three 9 g servos (aileron and elevator).

Wing Area : 1.52 sq ft = 1408 sq cm

Flying weight : 489 g = 17.25 oz

Wing Loading : 11.4 oz/sq ft

CG location : 80 mm behind wing leading edge at the root.

Extra 300 by HookLL - gift of a local friend, after some serious crash.

Some TLC brought it back to flying condition.

1200 mm wingspan, 1333 g AUW.

Original motor. Battery 3S 2200 mAh LiPo.

Folding prop.

Cowl made from Blue-Bunny Ice cream container. No landing gear ( belly lander) . No canopy.

Extra 300 by HookLL - Movie (2 min 42 sec)

Great Planes Rifle 31" wingspan moulded wing.

Custom fuselage made from 6mm diameter carbon tube. Homemade tail group.
Motor: Turnigy Propdrive 28-26, Kv=1200 rpm/V.
Battery LiPo 3S 1100 mAh.
Folding propeller 9.45" x 8" .
Two 9 g servos (aileron and elevator).
AUW 410 g = 14.46 oz .
Static test : 16 A , 188 W , at full throttle.

Great Planes Rifle based franken-plane - Movie (1 min 57 sec)

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Brooklyn Dodger , a classic free flight model airplane from 1941 , designed by Sal Taibi.

I got it as a gift from Gary S. ( thanks ! ) , who got it from the original owner and builder Ed Walker ( thanks! ).

Wing span is 55in ( 1.4 m). AUW is 1250 g = 44.1 oz.

Converted to electric R/C , with Rudder, Elevator and Throttle controls.

Removed the old Tornado engine and added an electric brushless motor: 174 g , Kv= 800 RPM/V .

12"x6" APC clone propeller.

LiPo 3S battery 2200 mAh.

Full WOT current is 21A , but it flies ok with just 7 A.

Brooklyn Dodger - Movie (2 min 21 sec)