Erstflug XXL-Indoormodell Boeing 737-200 aus 1mm depron

[Ben_E]

Hello fellow pilots!
I have scratch built a Boeing 737-200 from Depron for indoorflying during winter. 170cm wingspan, 450g flying weight.
Hope you like the video :-)

https://www.youtube.com/embed/K3PlXqZVhdQ?wmode=opaque&start=0

 

[Ben_E]

 

[Pulsar1999]

Hi Ben,

you did an absolutely great job! Seams to fly nicely and has an extremely good sound! 450g including retracts, I´m impressed!

Regards, Peter

 

[Ben_E]

Thanks for the kind words!
It's not that difficult to build light. My method is the same as those who build smaller paper models, but I scale the drawings to wanted size and use 1mm depron sheets instead of paper... If you want some more information on the build visit: https://forums.modelflying.co.uk/in...737-17m-wingspan/&tab=comments#comment-975519

 

[RetoF3X]

Wow, fantastic work, and thanks for sharing the build documentation!

Will you invest some weight for a paint job on the 737?

Best regards,
Reto

 

[Ragnar]

Absolutely great
Can you tell us something about the powerunits?

 

[Ben_E]

Wow, fantastic work, and thanks for sharing the build documentation!

Will you invest some weight for a paint job on the 737?

Best regards,
Reto

I will use waterslide decals, printed with my inkjet printer. As you can see on my 747 it comes out quite nice. It only ads just a few grams of weight

 

[Ben_E]

Absolutely great
Can you tell us something about the powerunits?

Certainlly, and thanks for the kind words!
I use he Emax 1106 4500kv with a 6 blade drone prop on 3S. I think the diameter is 65mm. I have used the same setup with a 3 blade propeller on my B777. I fly on less than half throttle, and can take off in quickly. I also use differential thrust, where I mix throttle with rudder: Turning left, the right engine gets 35% more thrust on the right motor, and simultaneously the left motor gets reduced with 15% - and naturally the oposite turning right.

 

[Ben_E]

Video from flights no 2-4 :-)

https://www.youtube.com/embed/c1ROeK7euMQ?wmode=opaque&start=0