New-EZ plane- 4 ENGINES called "2 DUCES"

L Edge

Legendary member
Background: Shooting for 12 designs which are an acrobatic and BWB no wings.

10) 4 engines plane - works and testing.
9) Whichway" control line plane modified to fly, need to be ahead to fly.
8) SR-71 Had long nose problems, just like large one, Best flown in no wind.
7) Bipe Flys just like a bipe, especially turns.
6) MagicJR slow, excellent in gusty winds.
5) B2 Spirit excellent control with no verticals
4) Bobcat good intermediate flyer.
3) X-29 long nose problems, flys just like SR-71, low winds
2) CircleLet Both planes have very high dihedrals
1) Easy Peasy which makes them excellent trainers.


Solving problems:

1) Can a FT transmitter control 2 units of FC? Used 3 FC's, switched pairs and it worked? Ran in house and with wife and phones, went outside about 200 ft and checked it, it worked. Listen for sync of all, plus changes in throttle plus rudder.


2) Enlarged plan.

Did 5 sizes and calc CG. This one was gut size feeling (short sides and longer). Fun part was to place electronics and balance 4 motor/props so all stuff is a go at 1/2 throttle.

2 engine.JPG


Set my CG back limit to get lower 1/2 throttle so I can more thrust for up, maybe to do a loop.
setuo.JPG


2 DUCES READY TO LAUNCH IN CELLAR. Max distance is 42 ft to launch. Designed J shape blue taupe to catch plane, slide down and no damage done including props. You build, fly, crash, rebuild.
Mine is throw, fly, catch, fix if needed, otherwise, step back, throw, catch, etc.

My first throw at 2 ft, spun and slid down, (wrong prop on other red), set up and here is my throws at different lengths.. Did not adjust batteries and notice last throw I add DT to the right(low rate). Not even a scratch. Now to see what happens outside.


4 ENGINES ARE A GO!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
 
Last edited:

L Edge

Legendary member
Background: Shooting for 12 designs which are an acrobatic and BWB no wings.

10) 4 engines plane - works and testing.
9) Whichway" control line plane modified to fly, need to be ahead to fly.
8) SR-71 Had long nose problems, just like large one, Best flown in no wind.
7) Bipe Flys just like a bipe, especially turns.
6) MagicJR slow, excellent in gusty winds.
5) B2 Spirit excellent control with no verticals
4) Bobcat good intermediate flyer.
3) X-29 long nose problems, flys just like SR-71, low winds
2) CircleLet Both planes have very high dihedrals
1) Easy Peasy which makes them excellent trainers.


Solving problems:

1) Can a FT transmitter control 2 units of FC? Used 3 FC's, switched pairs and it worked? Ran in house and with wife and phones, went outside about 200 ft and checked it, it worked. Listen for sync of all, plus changes in throttle plus rudder.


2) Enlarged plan.

Did 5 sizes and calc CG. This one was gut size feeling (short sides and longer). Fun part was to place electronics and balance 4 motor/props so all stuff is a go at 1/2 throttle.

View attachment 252514

Set my CG back limit to get lower 1/2 throttle so I can more thrust for up, maybe to do a loop.
View attachment 252515

2 DUCES READY TO LAUNCH IN CELLAR. Max distance is 42 ft to launch. Designed J shape blue taupe to catch plane, slide down and no damage done including props. You build, fly, crash, rebuild. Mine is throw, fly, catch, fix if needed, otherwise, step back, throw, catch, etc.

My first throw at 2 ft, spun and slid down, (wrong prop on other red), set up and here is my throws at different lengths.. Did not adjust batteries and notice last throw I add DT to the right(low rate). Not even a scratch. Now to see what happens outside.


Flying weight is 115.8 grams

4 ENGINES ARE A GO!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
 

L Edge

Legendary member
I thought this would probably work. So glad you tried. Flight tested?

Worked fine. I was concerned when you bind 2 receivers, but it worked out fine. Have a number of flights, so it flies real well with both left and right turns as well as slow flight for a flying wing. Fast flight is excellent and prefer to slow flight to practice throttle management and placing the plane were I want to go.

Give the EZ Power Pac a 10/10 for someone learning how to fly. Real impressed that with using foam board, a wide range of planes can be built.

 

BadAir

Active member
So, inspired by your advance, I bench tested tested running motors off the led switch using a relay. This works as well, although I need a different relay for a practical build. 6+ motor seem realistic. 250 grams on EZ reciever(s) challenge?
 

L Edge

Legendary member
So, inspired by your advance, I bench tested tested running motors off the led switch using a relay. This works as well, although I need a different relay for a practical build. 6+ motor seem realistic. 250 grams on EZ reciever(s) challenge?
Go for it.