Otto Dieffenbach's blog View Details
Posted by Otto Dieffenbach | Jul 25, 2016 @ 10:57 AM | 14,410 Views
Had a great time flying at ComicCon for the fourth year. Crowd had a fun time too. Always a fun event. Also flew Snoopy the next day at Knotts Berry Farm for the International Peanuts Club during their Beaglefest celebration.

Flying Snoopy and Superman at ComicCon 2016 by Otto Dieffenbach (1 min 42 sec)

Posted by Otto Dieffenbach | May 28, 2016 @ 02:01 PM | 14,928 Views
Two very successful flights today. There was a lot of discussion about shimming the stab and I decided to go with the shim. As it turned out I still needed about 1/4 inch down trim so I may shim it more. My Bipe does have a larger top wing, 2 more ribs on each side, so this is effecting things a little.

On my first flight I immediately notice how much extra power I had. I could cruise at 1/8 to 1/4 throttle. I did gentle turns both directions with ailerons only and saw only minimal adverse yaw at cruise. As I slowed down for a touch and go I did see significant adverse yaw and coordinated with rudder. I did one loop and landed after 5 minutes for a rigging inspection. All was well.

Second flight I opened the flight envelope with many loops, an Immelmann, a few barrel rolls and an axial roll. This is a fun plane.

Mine is back in the hanger for a full inspection and then a lot of flying.
Posted by Otto Dieffenbach | May 26, 2016 @ 08:59 AM | 15,444 Views
Just finished my Antic Bipe and Antic Monoplane. The Bipe has wheels, a std Antic top wing and a Spad type nose. The Monoplane fuse uses the top wing, nose and tail from the Bipe and is on Proctor looking floats. I put LEDs along the main spar of all four wing panels. White in the top panels and red and green in the bottom panels.

First flight on the Bipe Saturday.

I found the kit talking with Frank Gagliardi. I had mentioned that since I was 15 I wanted to build an Antic and built a smaller homebrew back in 1968. He went to a storage area and pulled out the Bipe kit, a gift from Lou Proctor just before he pasted. Time passed and I decided to buy it from Frank and he threw in another partial kit he had found at a swap meet. This enabled the second fuselage.

Next stop was Don Madison's to get some ply for the 2nd fuse. Don handles estate sales for modeler's widows in the area and just happen to have an Antic on floats bound for a restaurant display. Well, I bought up all his 1/32 ply, traced the floats and now have two Antics after 45 days of work.
Posted by Otto Dieffenbach | May 03, 2016 @ 12:24 PM | 15,804 Views
I like fun Float Planes and added GWS floats to one of my EFX Racers. An outstanding combination that flies like the std Racer.

My other project is a scratch built 1963 Marksman from AMA plans. I flew this back in the day and was the plane that I learned to fly inverted. I modified the plans for electric, added a 1969 wing and retracts.
Posted by Otto Dieffenbach | Mar 15, 2016 @ 01:17 PM | 15,225 Views
Posted by Otto Dieffenbach | Mar 10, 2016 @ 07:25 PM | 16,486 Views
Well, finally achieved a goal we set over 2 years ago; to get a human form hovering and flying. It was just a matter of time and a lot of testing.

Gothminister 3D Hover Flyguy by Otto Dieffenbach (3 min 35 sec)

Posted by Otto Dieffenbach | Nov 01, 2015 @ 10:35 AM | 17,512 Views
Article on Snoopy and his Flying Doghouse to appear in December's Model Aviation. New Build Log for The Flying Depron Doghouse posted in rcgroups. Here's the new video:
Flyguy Promotions New Website Video by Otto Dieffenbach (0 min 38 sec)

Posted by Otto Dieffenbach | Jul 13, 2015 @ 06:33 AM | 16,363 Views
Had a great time at Comic-Con and the crowd really loved the show. People stand in line for 24 hours to get into the important Panels and they ringed the water front on Friday. R2-D2 provided the entertainment. Crowds varied from around 2k for the TARDIS and Snoopy to 5-6k for R2.

Flying R2-D2 and Snoopy Fly At Comic-Con By Otto Dieffenbach (2 min 28 sec)

Posted by Otto Dieffenbach | Oct 10, 2014 @ 10:49 AM | 18,628 Views
Had a blast the other night flying my Witch over the San Diego skyline and over/around the full moon. A great time.

RC Flying Witch over San Diego by Otto Dieffenbach (Long Version) (2 min 18 sec)

Posted by Otto Dieffenbach | Feb 01, 2013 @ 10:24 AM | 23,618 Views
For those trying to find info on Flyguy, I have a master thread here in rcgroups. This is the link:

Here is the old master thread. Has good and dated info.

The first post gives you all the info needed to find discussion and build logs for the various forms of Flyguy.

Two are build logs for the Version 2 of Flyguy62 and Flyguy46. They are more rugged versions of Flyguy and the Depron and ply cutouts are available from if you don't want to cut the parts yourself.

Another entry point into all things Flyguy are my web pages at: and

Here is some information on my latest Flyguy, Version 3.
Flyguy62 Version 3 is a fully aerobatic version of Flyguy and new as of February of 2014. Version 3 is designed for the intermediate to advanced flyer where Version 2 is designed for anybody that can fly a trainer. Version 3 has twin motors for yaw control and is capable of inside and outside loops. Rolls are very axial and yaw control allows slow and point rolls. Here is a link to the Build Log:

Flyguy 62 Version 3 Fully Aerobatic with Twin Motors by Otto Dieffenbach (1 min 11 sec)

I just completed some experiments into flying boxes and cylinders. I dressed the prototype box up as Doctor Who's Tardis and the cylinder as a Red Bull can. Enjoy.

RC Flying Tardis on Doctor Who's 50th Anniversary by Otto Dieffenbach (1 min 14 sec)

RC Red Bull Can : Day 4 by Otto Dieffenbach (0 min 46 sec)

Another creation is my Broom Flyer Wizard/Witch. We took her out on an evening of a full moon and had some fun.

RC Broom Flyer Wizard Returns by Otto Dieffenbach (0 min 55 sec)

Finally, I've been developing a Quadplane. Working out the control system has been a challenge.

HoverflyDart Hybrid Quadcopter and Plane Flight 2 by Otto Dieffenbach (1 min 5 sec)