Parkjets

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Fokker DR

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Fokker DR

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Designed by Steve Shumate

If you download plans and build the DR1, please consider sending the designer a donation for all of his hard work and inspiration!

PayPal | jetset44@gmail.com

Suggested Donation: $10.00

NOTE FROM THE DESIGNER

The design goal of this model was to be a semi-scale parkflyer that also had good 3D aerobatics capability. The end result met all my expectations, and is one of my favorite RC models. When throttled back and flown slowly, this model looks remarkably scale in the air and is a really nice-flying parkflyer. But when you throttle up and put the sticks in the corners, in can also do some wild gyrations and great aerobatics. When I fly this bird at my local park, I like to surprise onlookers by flying really slow and scale-like for the first minute or two, and then let loose all of a sudden with wild aerobatics!

SPECIFICATIONS

Wing area: 575 sq in | Span: 36.5 in | Length: 30.1 in | Weight RTF: 21.0 oz | Wing loading: 5 oz/ft2 | Motor: Axi 2217/20 | Battery: Thunder Power 11.1V 2100 mAh Lipo | Prop: APC 12x6 SF

The Axi 2217/20 is the ideal motor for this model, since it provides 1.5:1 thrust-to-weight and swings a near-scale diameter prop (12x6). And it's really cool that the spinning outrunner motor is similar to the spinning rotary engine used in the original Triplane. This design started with a true scale outline, but I made several deviations from scale to improve the build-ability and flying qualities:

* Flat foam airfoil for easy construction and great aerobatics
* Ailerons on all 3 wings for insane roll rate and better roll control while hovering. Plus, this allows adding camber to all three wings (i.e., flaps) in improve slow speed stability and control.
* Enlarged vertical tail about 20% to improve directional stability
* Increased elevator chord for better aerobatics
* Lengthened nose to improve balance

BUILD THREAD

RC GROUPS BUILD THREAD

 

More Info

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Designed by Steve Shumate

If you download plans and build the DR1, please consider sending the designer a donation for all of his hard work and inspiration!

PayPal | jetset44@gmail.com

Suggested Donation: $10.00

NOTE FROM THE DESIGNER

The design goal of this model was to be a semi-scale parkflyer that also had good 3D aerobatics capability. The end result met all my expectations, and is one of my favorite RC models. When throttled back and flown slowly, this model looks remarkably scale in the air and is a really nice-flying parkflyer. But when you throttle up and put the sticks in the corners, in can also do some wild gyrations and great aerobatics. When I fly this bird at my local park, I like to surprise onlookers by flying really slow and scale-like for the first minute or two, and then let loose all of a sudden with wild aerobatics!

SPECIFICATIONS

Wing area: 575 sq in | Span: 36.5 in | Length: 30.1 in | Weight RTF: 21.0 oz | Wing loading: 5 oz/ft2 | Motor: Axi 2217/20 | Battery: Thunder Power 11.1V 2100 mAh Lipo | Prop: APC 12x6 SF

The Axi 2217/20 is the ideal motor for this model, since it provides 1.5:1 thrust-to-weight and swings a near-scale diameter prop (12x6). And it's really cool that the spinning outrunner motor is similar to the spinning rotary engine used in the original Triplane. This design started with a true scale outline, but I made several deviations from scale to improve the build-ability and flying qualities:

* Flat foam airfoil for easy construction and great aerobatics
* Ailerons on all 3 wings for insane roll rate and better roll control while hovering. Plus, this allows adding camber to all three wings (i.e., flaps) in improve slow speed stability and control.
* Enlarged vertical tail about 20% to improve directional stability
* Increased elevator chord for better aerobatics
* Lengthened nose to improve balance

BUILD THREAD

RC GROUPS BUILD THREAD