• Polyurethane RC Blimps & Custom LTA’s since 1999. •

Solar RC Blimps designed and made by Aero Drum Ltd



The main and unique characteristic of Solar RC Blimps is that the flight autonomy is incomparable to any other craft. Simply explained ...the volume of the Blimp is calculated to annul the Blimp weight including envelope, electronics, stabilizers, solar cells, batteries, all rest Blimp related and target payload. The result is a fully set Blimp, ready to fly, that is positively buoyant. All the available energy is than used only for motion with minimum losses (mainly on aerodynamic resistance of the envelope). There is no need to use energy to lift payload, components or else as they have “no weight”. A fully set and loaded Blimp will float consuming no energy at all. That is unique to Blimps! Today flexible solar cells with 20%+ conversion efficiency are giving more energy than the Blimp needs for motion and rest electronic onboard consumers. To take advantage of the two above facts the design of the Solar RC Blimp also had to be ground breaking and innovative. Classic Blimp designs with double turn able main motors are great for maneuverability but are adding too much drag on the low part of the Blimp. In the same time the nose (front) of the Blimp is cutting through air making it extremely aerodynamically resistant (see graphic below). So the results are 2 main aerodynamic resistant areas of the Blimp. With that fact in mind we had to redesign the classic Blimp concept. The obvious place for the main propulsion was at the nose (front) of the Blimp.

Wind tunel on UniBlimp Blimp design

After several years of trials, errors and corrections we have designed One Main Motor (OMM) - front/nose mounted and the results were finally worthy to be integrated into the Solar RC Blimp concept. We named it UniBlimp. There are several unequivocal advantages of this Blimp design:

  • - Only one main power consumer
  • - Motor positioned in the most sensitive position on the blimp
  • - Power drain reduced by 30% compared to a Blimp of same size
  • - Reduced overall weight
  • - Reduced envelope volume (Allowing 5:1 or better ratio)
  • - Reduced Aerodynamic resistance
  • - Added bonus is reduced side aerodynamic resistance
  • - And several other advantages
UniBlimp single axis engine
UniBlimp front brushless motor

10 m Solar powered RC Blimp (Uniblimp design)

26.437,00 Euro - 26.230,00 USD* + transport

The 10 m Solar Blimp is designed for hours of flight autonomy and able to carry a payload of up to 2 kg. It has a single front motor, back reverse motor, stabilizers with ailerons all synchronized for maximum power efficiency. The rail system allows simple payload attachment for various remote sensing equipment. Several subsystems were developed to make this Blimp possible. Most important is the intelligent power distribution unit that is, in essence, an automated switch that diverge the solar power to batteries or system. The power to the Blimp comes from the batteries and the solar modules are in the same time gives energy to the system and charge the batteries. So It flies until sufficient sun power!



    Envelope and related accessories

  • - 10 x 1.9 m
  • - 1: 5.26 Envelope ratio
  • - 22.5 m3 volume
  • - Envelope material 125 microns white Polyurethane UK Quality. B1 grade fire retardant.
  • - Double welding technology
  • - Helium permeability 0.5 to 1% on total volume maximum daily – guaranteed
  • - Envelope parts 8 (longitudinal)
  • - Filling valve 2 x Scoprega (at the front and back)
  • - Balance Lead bars 4 kg (4 x 1 kg) rough balance
  • - Front and back Reinforced with 3 Ply PVC
  • - Balance pockets Front and back weight pockets for fine balance
  • - Lift capacity 1 to 2 kg
  • - Safety Valve Set on top of the envelope – servo controllable.
  • - Rail system Multiple attachment points to allow move able cabin to be set in the exact gravity point.
  • - Strong attach points Front and back for secure tethering and “parking”
  • "Gondola", batteries and electronics

  • - Principal body material 2 mm aluminum – water jet cut
  • - Main motor Positioned on the nose – in line with horizontal axis
  • - Motor mount 3D printed – PLA and aluminum 8 mm tubes
  • - Main motor ESC 120 A
  • - Brushless motors 200 to 340 kv
  • - Back reverse motor ESC 50 A
  • - Back reverse motor 800 to 1100 kv
  • - UBEC 5 A min
  • - Batteries 4 x cells, 22.2 V, LiPo, 5000 mAh – Total 20.000 mAh
  • - Connection system 10 contact points (5 in parallel) for the cabin
  • - RX/TX Futaba T12K or similar in quality
  • - Futaba Telemetry Battery voltage
  • - Intelligent Power Control In: Power from Solar Modules, Out 1: Battery charge, Out 2: Power to the main motor and system
  • - UBEC 5 A min
  • - Batteries 4 x cells, 22.2 V, LiPo, 5000 mAh – Total 20.000 mAh
  • Solar Modules

  • - Cells type Maxeon GEN III 24 % efficiency
  • - Cells per module 18
  • - Number of modules 3 (18 x 3 = 54 cells total)
  • - Cells connection method Serial
  • - Peak Power 12.5 V + and up to 6 A
  • - Attachment system on the envelope 50 mm adhesive tape
  • - Housing Eva foam 3 mm + Pressphan 1 mm + 0.5 mm 100% Clear PET
  • Stabilizers

  • - Material 10 mm Foam (foam/cardboard). Balsa reinforced frame covered in PVC film for durability and water protection
  • - Ailerons 2 x horizontal and 2 x vertical - synchronized
  • - Configuration type X stabilizers
  • - Total number of servos 4 (1 for each aileron)
  • - Stabilizers tensioning system Velcro base, 1 mm Nylon lines and Velcro bases on the envelope.Strong and durable system easy to set and take down
  • - Power to servos 24 V to a DC/DC convertor to 6 V
  • Rest Solar Blimp related

  • - Filling hose 2 m with special adapter to the Blimp Scoprega valve
  • - Repair Kit 0.5 m2 125 microns Polyurethane and 250 g of Special Polyurethane adhesive
  • - Digital charger Included
  • - Small lead for fine balance
  • - 10 m safety "park" line
  • Status - Use

  • - Use 2 settings: Main 1 – Solar setting with solar modules and Main 2 – Batteries only
  • - Aileron servos Power to the stabilizer aileron trough 24 V and lowered to 6V by a DC/DC converter
  • - Safety RC safety valve on top of the envelope, RC Safety reel with 100 m of 2 mm Dacron line
  • - Status Fully set, tested electronics, synchronization and ready to fly -except helium (lift gas)
  • - Transport packing Packed in reinforced cardboard box with humidity protection
  • - Total weight of the Solar Blimp 23 kg
  • - Use (recommended) On air flow of 7 to 8 km/h and wind gusts up to 13 km/h
  • - Autonomy 2 + hours on dry and calm weather
  • - Solar Autonomy Direct sunlight needed to get 100% cells capacity
  • - Status Completely set up to RX/TX level
  • - Power distribution autonomous
  • - Ground crew 2 to 3 trained persons
  • - Storing In closed space or close trailer if not in use
  • - Use and handling responsibility The end client is entirely responsible for Blimp use. We will design and produce the Blimp with outmost care and applying all our experience. Flying, storing and handling is under client direct influence and we recommend to synchronize flight activity with local laws for drones.
  • - Production time Up to 30 to 35 days

Status: Ready to fly (Tested prior to delivery) - All included except lift gas

Production time: around 30 to 35 days

Price: 36.437,00 Euro - 39.794,00* USD

FedEx (Transport): price depending on destination

Payment method: 50% to start, 30% during production and 20% when finished prior to delivery

Note: export value (transport papers are at 20% value)

*Exact USD price on purchase day!

The main components of the Solar Blimp

A-large-engine-with-a-propeller-on-the Blimp nose
Extremely-strong-and-light-stabilizers-with-flaps for Blimps
Direction-stabilizers for Solar Blimps