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P-61 Black Widow Plan

Only 1000 left

70 $70.00

Product ID: ZIR:P611

  • Scale: 1.71" - 1'
  • Wingspan: 114"
  • Length: 84"
  • Wing Area: 1875 sq/in
  • Weight: 38-45lbs
  • Power: 38-50cc gas

The sinister looking Black Widow was built to an Army specification issued in 1940 and eventually saw service with both the Air Corps and Marines. Designed primarily as a night fighter, much of it's equipment was the then secret Radar. The detailed plan set consists of five large sheets which clearly illustrate all structure as well as showing flap and retract installation. The design also features spoilers in outer wing panels.


The giant scale P-61 Black Widow plan set is 1/7 scale and consists of five large sheets that clearly illustrate all structure as well as showing installation of flaps, spoilers and retracts. The P-61 Black Widow plan shows the installation of Robart retracts, servos and Zenoah G-38 engines and features three piece wing.  The basic structures use conventional “modeling” tools and materials such as balsa and plywood, and the techniques are straightforward; easily accomplished by anyone with previous model building experience. There are many online building threads at www.rcuniverse.com forums and www.rcscalebuilder.com  forums for Nick’s plans. Tech support is also available via email at www.ziroliplans.com or by phone 9:00 to 5:00 Mon - Fri EST 631-467-4765. The plan includes full-size templates for all the required parts allowing you to cut a complete “kit” before you start construction. If you would like to purchase a wood kit see KIT CUTTER'S on selection bar at the top of each page.  The plans have a separate instruction guide and building notes on the plans. If you choose gear or an engine not shown on the plans you should have them on hand when you start construction to make any changes needed for mounting. Nick Ziroli Plans recommends covering the airframe with 1 oz fiberglass cloth and ZAP Z-poxy finishing resin and elevator and rudders with iron on cloth covering such as Solartex.. Nick Ziroli Plans has building and scale accessories available for the P-61 Black Widow. 

Plans Specifications:
  • Specifications: P-61 Black Widow Plan
  • Scale: 1/7
  • Inches to the foot: 1.7" - 1'
  • Length: 84"
  • Weight: 38-45lbs
  • Wing loading: 46-55oz/sqft
  • Wing area: 1875 sq.in
  • Wing span: 114"
  • Wing incidence at root: +2 degrees
  • Stab incidence: 0 degree
  • Dihedral: jig built center cention
  • Power: 38-50cc gas
  • Washout at wing tip: 2 to 3 degrees built in with jig
  • Aileron throws: 3/4", spoiler up 1/2" up & 3/8" down
  • Elevator throws: 1.25" up and 1.25" down
  • Rudder throws: 1.5" to right & 1.5" to left
  • Flap degrees down: 40-50
  • Cowl length: 8"
  • Cowl height front: 7.5"
  • Cowl height rear: 9"
  • Cowl width front:: 7.5"
  • Cowl width rear: 9"
  • Engine offset degrees: Right engine 3 right o down, Left engine 0 right 0 down
  • CG Location: 4" back from the leading edge of the wing at centersection fuselage with the gear down.
  • Requires:
  • Ziroli cowls (2)
  • Ziroli canopy
  • Ziroli plastic wing scoops, turret and wheel fairing
  • Engine: (2) 38-50cc gas
  • Spinner: (2) 3" P-51 Style
  • Fuel tank:: (2) 16oz square
  • Wing Tube: 1.5" X 36"
  • Control Horns: (4) .5", (2) .75"
  • Hinges: (22) DUBRO# 257 LG flat hinges
  • Covering: 1 oz fiberglass cloth & epoxy resin
  • Retracts Main
  • Retracts nose
  • Retract Air Kit
  • Wheels Main: 6.5" or 6"
  • Wheel nose: 4.5"
  • Radio channels: 6 or more
  • Servos: Flaps (4) 120+oz MGBB, Ailerons (2)90+oz BB, Elevators (2)90+oz BB, Rudder (2)90+oz BB, Gear (1)50oz, Throttles (2)50oz BB
            MG-metal gear BB-ball bearing