Overview
The HGLRC Petrel 85Whoop Indoor Frame is an ultra-light indoor FPV racing drone whoop frame designed as a beginner-friendly entry into light flying. The newly upgraded 85mm design adds a reinforced rib structure to improve frame strength and durability for frequent impacts.
Key Features
- Reinforced rib design for increased frame strength
- Motor mounting support for SPECTER 1002 / 1003 / 1202.5 series hole patterns
- Frame-fixed battery secured by rubber band method for flexible 1S or 2S battery swaps (capacity-dependent)
- Supports 14mm camera size
Specifications
| Brand | HGLRC |
| Model | Petrel 85Whoop Indoor Frame |
| Material | Transparent gray |
| Frame wheelbase | 85mm |
| Frame size | 120mm*120mm |
| Flight control mounting hole | 25.5x25.5mm |
| Motor mounting hole | Φ6x3 / Φ9x4 M2 |
| Supported camera size | 14mm |
| Single frame weight | 12.3g |
| Frame plus hood weight | 13.51g |
| Size diagram (additional dimensions) | Ø56.00, Ø4.00, Ø2.00, 18 |
What’s Included
- 1x 75mm frame
- 1x 1.5mm base plate
- 1x 75mm canopy
- 4x screw M1.4*8
- 2x screw M2*4
- 4x M2*6.6 shock absorbing ball
- 2x battery straps 10x120mm
- 6x black rubber band
Recommended Parts (Not Included)
- Flight controller: SPECTER 10A AIO
- Motor: SPECTER 1202.5-11000KV
- Camera: Runcam Nano4
- Propeller: Gemfan2015 2inches
For build guidance or fitment questions, contact support@rcdrone.top or visit https://rcdrone.top/.
Details

Built for indoor FPV practice, the Petrel 85Whoop keeps weight low while adding rib reinforcement for better crash resilience.

Use the size layout to confirm prop-guard clearance and overall fit before starting your whoop build.

Everything needed for the frame assembly is included, along with a quick spec list for camera and mounting compatibility.
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