Efficient 7 inch / 295mm platform delivers long flight times and range
In stock
Frames
MARK4 V2 7 inch 295mm Carbon Fiber Frame
The MARK4 V2 7 inch is a 3K full carbon fiber long-range and freestyle quadcopter frame with a 295mm wheelbase, scaled up from the popular MARK4 5 inch to carry 7 inch propellers.
₹3,090 + 18% GST
SKU: BOTBIT-FRM-02 · Best for: 7 inch long-range FPV cruising
Overview
About MARK4 V2 7 inch 295mm Carbon Fiber Frame.
The MARK4 V2 7 inch is a 3K full carbon fiber long-range and freestyle quadcopter frame with a 295mm wheelbase, scaled up from the popular MARK4 5 inch to carry 7 inch propellers. The larger prop disc and X-type geometry make it efficient for cruising and long-range FPV, where lower disc loading translates into longer flight times and a stable platform for HD cameras and bigger batteries. It ships as a bare frame kit, so the electronics are chosen by the builder.
Built for endurance flying, the V2 uses thick 6mm arms to handle the extra torque and mass of 7 inch motors and props, with a wide deck that mounts both 20x20 and 30.5x30.5 flight stacks and an HD air unit. The camera and VTX areas accept the larger components typical of long-range builds, and the layout leaves room for higher-capacity 6S Li-ion or LiPo packs that long-range pilots rely on for extended missions.
It targets long-range FPV pilots, aerial cruising and exploration flyers, and builders who want a 7 inch platform that can carry a GoPro-class camera over distance. It is also a practical base for lightweight survey and inspection FPV rigs where reach and flight time matter more than raw agility.
Key features
Why it stands out.
Heavy-duty 6mm carbon arms handle 7 inch motor torque and crashes
X-type deck mounts 20x20 and 30.5x30.5 stacks plus HD air units
Generous bay accepts large 6S Li-ion and LiPo long-range packs
3K full carbon construction keeps the airframe stiff and lightweight
Specifications
Selection facts.
| Wheelbase | 295mm |
|---|---|
| Propeller size | 7 inch |
| Frame material | 3K full carbon fiber |
| Arm thickness | 6mm |
| Frame structure | X-type |
| Frame weight | ~185 g |
| Stack mounting | 20x20mm and 30.5x30.5mm |
| Motor mount | 16x16mm and 19x19mm |
| Recommended motors | 2806.5 / 2807 class |
| Recommended battery | 6S |
Applications
Where it is used.
- 7 inch long-range FPV cruising
- Long-range exploration and chase flying
- HD camera FPV builds (GoPro-class)
- Lightweight aerial inspection FPV rigs
- 7 inch freestyle and mid-range flying
- DIY long-endurance quad assembly
Buying guide
How to choose.
The MARK4 V2 7 inch is sold as a bare frame, so plan a long-range parts list: 2806.5 or 2807 class motors, a 45A-65A capable 4-in-1 ESC, a 30.5x30.5 flight controller with GPS support, an HD or analog VTX, and 6S packs. For maximum endurance, many pilots pair it with 6S Li-ion packs rather than LiPo.
Choose the 7 inch over a 5 inch frame when your priority is range and flight time rather than agility. The bigger props and 6mm arms add weight but unlock much longer cruising endurance, making it the right base for exploration, mapping reconnaissance and HD filming over distance within Indian regulations for your weight class.
Confirm component fit before ordering. Verify your HD air unit and camera fit the cage, check that your chosen ESC handles the higher current of 7 inch motors, and make sure your battery footprint fits the bottom plate. Keeping spare 6mm arms on hand keeps repairs quick after a hard landing.
FAQ
Common questions.
How is the V2 different from the original MARK4 7 inch?
The V2 refines the popular 7 inch MARK4 layout with updated plate geometry and component mounting. It keeps the 295mm wheelbase and thick carbon arms while improving the deck for current HD air units and stacks. Always check the specific listing, as arm thickness and plate specs vary slightly between batches.
What battery is best for long range on this frame?
Long-range pilots usually run 6S packs, often Li-ion 18650 or 21700 packs for the best Wh-per-gram and flight time, or 6S LiPo for more punch. The frame bay accommodates larger packs; match capacity to your target flight time and total all-up weight.
What motors and props should I use?
The mounts fit 7 inch motors in roughly the 2806.5 to 2812 range. Pair them with 7 inch propellers and an ESC rated around 45A-65A. Lower-KV motors on 6S give efficient cruising, which is the typical goal for a long-range 7 inch build.
Does it fit a DJI O3 or other HD air unit?
There is space for HD air units and standard cameras, but you should confirm the exact dimensions of your air unit and camera against the cage and deck before purchase. A 3D-printed mount may be needed for a clean, secure HD installation.
Is this frame good for aerial mapping or inspection?
It can serve as a lightweight FPV inspection or recon base thanks to its range and HD camera capacity, but it is not a dedicated survey airframe with a gimbal and payload bay. For precision mapping with a stabilised camera, a larger dedicated platform is more appropriate.
Does the kit include any electronics?
No. It includes only carbon plates, arms and mounting hardware. Motors, ESC, flight controller, camera, VTX, antennas and batteries must be purchased separately to complete the long-range build.
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