RV-4 (350) 1:8 Scale, Laser-cut Kit

From: $149.00

We developed the 1:8 Scale RV-4 for publication in balsabuilder magazine.  The 35 in. span RV-4 (350) is a is a complete redesign of our classic brushed speed 300 kit offering.  We refreshed the design to increase the models appeal to both kit and traditional plans builders alike.  We think the updated RV-4 is a great improvement over the original, with a reduced parts count and easier to handle materials, the structure remains light, sturdy, and ridiculously simple to frame – this makes the balsabuilder version of our classic easier to handle, sturdier, and more refined.

We are excited to offer the RV-4 in full kit form.  This comprehensive kit offering includes a full complement of laser-cut ribs, formers, and shape parts along with: balsa wood strip stock, plans, construction article, pre-formed landing gear, canopy, cowl, wheel pant kit, and thorough hardware package.

Published 2018: Issue 7 of balsabuilder Magazine – designed and manufactured by Stevens AeroModel.

Made in Colorado, USA
Item Number: BBM-FK018
Wing span 35 in. | Wing area 250 sq. in. | Flying Weight 17 oz. | 4-Channel REAAT
 View Construction Article

Add our Lucky "7" decals!

Everyone needs a bit more luck so add our Lucky "7" decals it is like having crash insurance... well maybe not... but they sure look great!

Add the motor!

The RV-4 has been designed for the Park BL400 (1400KV) motor.

In stock

Add the propeller!

We suggest the APC 8x4.7 SF style propeller when outfitting the RV-4 recommended. Add one or more now.

Out of stock

Add the ESC!

Our 20A ESC is perfectly matched to the recommended motor and comes with pre-soldered 3.5mm gold bullets – for a plug and play installation.

In stock

Add four servos! × 4

The RV-4 requires four Hitec HS-55 servos, add these to your order.

Insufficient stock (only 2 left in stock)

Add the receiver!

The Spektrum AR400 receiver works great in this application (you'll want to pick up a servo "Y" harness as well).

Out of stock

Add a "Y" Harness

When using a 4-Channel receiver you'll want to run a servo "Y" harness to link the aileron servos.

In stock

Add the battery!

We suggest the ThunderPower 1350 mAh 7.4V battery for this application.

Out of stock

Add the White covering!

You'll need one roll of ParkLITE to cover the model. We suggest picking up an additional contrasting trim color.

Out of stock

SKU: BDL-FK018 Category: Tag:

Additional Details

Kit Includes

  • Precision laser-cut parts from hand-selected AAA balsa wood
  • All required balsa strip stock to complete the model
  • Full-size CAD drawn printed plans
  • Construction article as published in Issue 7 of balsabuilder magazine detailing the build process
  • Pre-formed wire landing gear
  • Clear Canopy
  • Styrene Cowl (two piece)
  • 1 1/2 in. wheel pant kit
  • Hardware package including: DU-BRO control horns, push-rods, foam wheels, and fastener package.


  • Basic modeling tools (knife, sanding block, T-pins, etc..)
  • Your favorite adhesive for construction (CA, Aliphatic, or Nitrocellulose)
  • Covering film, trim tape (for your snazzy design), paints to match your scheme.
  • Power system and electronics (specifications below)

Model Specifications
Wingspan | 35 in.
Area | 250 sq. in.
Average Flying Weight | 17 oz.

Motor | BL400 motor 1400KV (SA Sport 2212-10)
Speed Control | 20A
Battery | 7.4V 1100 mAh LiPo
Propeller | APC 8×4.7 SF
Servos | Hitec HS-55 (4 required)
Radio | 4-6 channel transmitter and receiver (Servo Y Harness with 4-Ch TX)


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