Recommended Parts List
Every part a TerraHawk FPV needs, in the order the manual fits them. No shop links, because those change and the parts do not. Search your usual shop for the exact name.
From the TerraHawk FPV v1.0 Assembly Manual · Prices checked September 2026 · Rough estimates, not quotes
Four decisions, then it is just shopping
Everything on this page follows from these four. Make them in order and the rest of the list reads itself.
- Your routeBasic FPV, or advanced autonomy. Same flight controller either way. The GPS and the airspeed sensor differ.
- Your battery voltage6S or 4S. It sets the motor windings and the ESC ratings.
- Your lift prop8-inch bi-blade, or 7-inch tri-blade. It sets the lift motor KV.
- Your FPV systemDigital, analogue, or none at all. Two nose cones are in the kit.
Pick your route
Both routes share the airframe, motors, ESCs, battery, servos and radio. The difference is the avionics.
| Area | Basic FPV build | Advanced autonomy build |
|---|---|---|
| Flight controller | H7 wing controller | H7 wing controller |
| GPS | One M8-class GPS | One or two M10-class GPS |
| Airspeed | Highly recommended | Required, DLVR sensor |
| RC and telemetry | ExpressLRS or Crossfire, MAVLink on | Same |
| FPV video | Your choice | Your choice |
Bigger antennas are always better for GNSS units.
Pick your battery voltage
Choose once. Every motor and ESC below has a 4S answer and a 6S answer.
| Build | Lift motor KV | Pusher winding | Battery |
|---|---|---|---|
| 6S, the baseline the manual assumes | Lower KV, see VTOL lift propulsion | 640KV | 6S 4500 to 5000 mAh LiPo, or 6S2P 21700 Li-ion |
| 4S | Higher KV, see VTOL lift propulsion | 900KV | 4S 6000 mAh LiPo, or 4S3P 21700 Li-ion |
Shopping summary
One aircraft. Details and branded options follow.
| Item | Qty | Rule | Rough price (USD) |
|---|---|---|---|
| Electronics | |||
| VTOL lift motors | 4 | Four identical motors, one family, one KV | $90 to $210 for four |
| Lift ESC | 1 | One 4-in-1, 45 A or more per channel, 32-bit firmware | $50 to $110 |
| Lift propellers | 4 plus spares | Matched CW and CCW set. Buy a spare set | $10 to $25 for two sets |
| Pusher motor | 1 | 3115 class, winding matched to your battery | $45 to $60 |
| Pusher ESC | 1 | 50 A or more, rated for your battery voltage | $15 to $60 |
| Pusher propeller | 1 plus spare | APC 12x8, E or EP to match motor rotation | $15 to $20 for two |
| Elevon servos | 2 | 9 g or 12 g, metal gear | $15 to $35 for two |
| Linkage set | 1 | Adjustable pushrods and linkage stoppers | $2 to $10 |
| Flight controller | 1 | H7 wing controller | H7 $65 to $130 |
| GPS | 1 | M10 generation or newer, with compass | $20 to $60 |
| Airspeed sensor | 1 | Highly recommended on basic, required on advanced | MS4525 $35 to $70. DLVR $90 to $190 |
| RC receiver | 1 | ExpressLRS or Crossfire, carrying MAVLink | $15 to $45 |
| Flight battery | 1 | 4S or 6S, 50 A continuous, XT60 | $65 to $165 (6S LiPo) |
| FPV system | Optional | Anything that fits the nose | DJI O4 $150 to $290. Not in the totals |
| Airframe materials | |||
| Carbon spars | 3 lengths | 2 m of 8 mm, 2 m of 14 mm, 1 m of 6 mm | $70 to $100 |
| Filament | 2 rolls | 1 roll of PLA Aero, 1 roll of PETG | $60 to $80 |
| Estimated totals | |||
| Estimated total, basic route | 6S build, FPV not included | $450 to $980 | |
| Estimated total, advanced route | 6S build, FPV not included | $500 to $1,120 | |
Airframe materials
Filament and carbon. Order these on day one. A full airframe takes days of printer time and the parts take about as long to arrive, so the two happen in parallel.
Filament
| Filament | How much | Used for | Est. cost (USD) |
|---|---|---|---|
| Lightweight foaming filament (PLA Aero or LW-PLA) | ~1 kg | Fuselage, wings, elevons, nose cone | $55 |
| PETG | ~250 g | Spar plates, mounts, hardware interfaces | $22 |
- Starter build
- PLA Aero and PETG. Basic, lighter. LW-PLA is the alternative.
- Performance build
- ABS-GF and PETG-CF. Engineering-grade, heavier, and it needs an enclosure.
- Heat resistant build
- ASA Aero and PETG. Difficult to print, light, heat resistant.
Carbon spars
| Order | Cuts into | Left over | Est. cost (USD) |
|---|---|---|---|
| 2 m of 8 mm pultruded | Rear fuselage spar and both wing spars | 50 mm | $30 |
| 2 m of 14 mm woven | Front fuselage spar and both VTOL spars | 760 mm | $45 |
| 1 m of 6 mm pultruded | Both elevon spars | 300 mm | $20 |
VTOL lift propulsion
Four motors, one 4-in-1 ESC, and a matched set of props with a spare.
Lift motors
- Class
- 2807-class brushless, 2806.5 to 3008 stators. Four identical.
- Variants
- By battery and by prop. Lower KV swings the 8-inch bi-blade, higher KV the 7-inch tri-blade.
| Battery | Prop | Motor KV | Branded offerings |
|---|---|---|---|
| 6S | 8-inch bi-blade (baseline) | 1050 to 1250KV | T-Motor VELOX V3008 1155KV, iFlight XING2 2809 1250KV, SpeedyBee 2807 1050KV (may be discontinued, check stock) |
| 6S | 7-inch tri-blade | 1300KV | EMAX E3 2807 1300KV (sold as ECO III), BrotherHobby Avenger 2806.5 1300KV, T-Motor VELOX V2808 1300KV |
| 4S | 8-inch bi-blade (baseline) | 1600 to 1750KV | EMAX E3 2807 1700KV, EMAX ECO II 2807 1700KV, BrotherHobby Avenger 2806.5 1700KV |
| 4S | 7-inch tri-blade | 1900 to 1950KV | BrotherHobby Avenger 2806.5 1920KV, T-Motor VELOX V2808 1950KV |
Lift ESC
- Class
- One 4-in-1 ESC, 45 A or more per channel, 32-bit firmware (BLHeli_32 or AM32) so DShot300 and ESC telemetry work.
- Variants
- The board must be rated for your battery. All four below cover 6S, two go to 8S.
- Branded offerings
- TBS Lucid 60A 4-in-1 AM32 (3 to 8S, our pick), T-Motor F60A Mini 4-in-1 AM32 (3 to 8S), Hobbywing XRotor Micro 60A 4-in-1 BLHeli_32 (3 to 6S), iFlight BLITZ E55 4-in-1 BLHeli_32 (2 to 6S).
Lift propellers
- Class
- 8-inch bi-blade with the baseline motors, or 7-inch tri-blade with the higher-KV motors.
- Branded offerings
- 8-inch: Gemfan F8041 folding 2-blade (8041F-2), HQProp 8x5 bi-blade. 7-inch: Gemfan Hurricane 7043 3-blade.
Buy a matched CW and CCW set, plus at least one spare set. Folding blades trail back once the lift motors stop in forward flight, which cuts drag.
Pusher propulsion
One motor, one ESC, one propeller, and a spare propeller.
Pusher motor
- Class
- 3115-class brushless, one.
- Variants
- 640KV for 6S builds, 900KV for 4S builds. Both swing the same 12x8 prop.
- Branded offerings
- T-Motor VELOX V3115 (640KV and 900KV), BrotherHobby Tornado T5 3115 Pro (640KV and 900KV), EMAX ECO II 3115 (640KV, rated 6S and up, so 6S builds only).
Pusher ESC
- Class
- One single ESC, 50 A continuous or more, rated for your battery voltage. PWM is fine here. The pusher does not need DShot.
- Branded offerings
- TBS Lucid 90A single AM32 (3 to 12S, 70 A continuous, our pick), Hobbywing Skywalker 60A V2 (2 to 6S), Hobbywing Skywalker 50A V2 Plus (3 to 6S), T-Motor AT 55A (2 to 6S).
Pusher propeller
- Class
- APC 12x8 Thin Electric. The balanced all-rounder for this airframe.
- Variants
- 12x8E (standard rotation) or 12x8EP (pusher rotation). Pick the one that matches the direction your motor will turn. Buy a spare.
Battery and connector
One flight pack, and the one connection that can destroy everything downstream.
- Class
- One flight pack, 50 A continuous discharge or more, XT60 connector.
| Build | LiPo | 21700 Li-ion |
|---|---|---|
| 6S | 6S 4500 to 5000 mAh | up to 6S2P 21700 pack |
| 4S | 4S 6000 mAh | up to 4S3P 21700 pack |
- Branded offerings
- LiPo from CNHL, Tattu or GNB in the sizes above. Li-ion packs built from Molicel P45B or Samsung 40T cells.
Elevon servos and linkage
Two servos, one per elevon, and the rods that connect them.
- Class
- Two 9 g or 12 g metal-gear servos, one per elevon. The servo bay fits both sizes.
- Branded offerings
- EMAX ES08MD II (12 g, digital, our pick), EMAX ES08MA II (12 g, analogue), JX PDI-1109MG (9 to 10 g, digital), Corona DS-929MG (12.5 g, digital).
- Linkage
- One adjustable pushrod and linkage-stopper set. Use the arms supplied with the servo and a control horn of your choice, bought or printed. The manual, step 4.3, shows the fitting.
Avionics
The flight controller, what it needs to know where it is, and the link that carries both control and telemetry.
Flight controller
- Class
- A wing-style controller with onboard power regulation, so no separate BEC and no power distribution board. It needs four outputs in one DShot-capable group for the lift motors, and three more for the pusher and servos. DShot is highly recommended but not mandatory. PWM can also work for lift motors.
- Variants
- H7 wing controller, one family, for both routes.
- Branded offerings
- iFlight BLITZ Wing H743, Holybro Kakute H743-Wing, TBS Lucid H7 Wing, MicoAir743 V2.
| Board | ArduPilot firmware target | Battery |
|---|---|---|
| iFlight BLITZ Wing H743 | BlitzWingH743 | 2 to 8S |
| Holybro Kakute H743-Wing | KakuteH7-Wing | 2 to 8S |
| TBS Lucid H7 Wing | TBS_LUCID_H7_WING | 3 to 12S |
| MicoAir743 V2 | MicoAir743v2 | Up to 6S |
GPS
- Class
- One M10-generation GPS with compass, on a UART. The advanced route may fit two, where the board has the ports.
- Branded offerings
- GEPRC GEP-M1025 series, Matek M10Q-5883, TBS M10 GPS Glonass, Holybro M10 GPS V2.
Airspeed sensor
- Class
- A digital pitot airspeed sensor, with its pitot tube and tubing. Recommended on the basic route, required on the advanced route.
- Variants
- MS4525-class (I2C, fine for manual and assisted flying), or DLVR-class (I2C or CAN, precise at low speed, use it for autonomous missions).
- Branded offerings
- MS4525: Matek ASPD-4525, Holybro Digital Airspeed Sensor (MS4525DO version). DLVR: Matek ASPD-DLVR (I2C and CAN), Holybro High Precision DroneCAN Airspeed Sensor (DLVR).
RC receiver and telemetry
- Class
- One receiver in the ecosystem your transmitter speaks, set up to carry MAVLink telemetry as well as control. One link, both jobs.
- Variants
- ExpressLRS (2.4 GHz or 900 MHz), or TBS Crossfire (900 MHz).
- Branded offerings
- ExpressLRS: RadioMaster XR1 Nano (dual-band version), RadioMaster RP4TD (2.4 GHz true diversity), HappyModel EP2. Crossfire: TBS Crossfire Nano RX Pro.
FPV video
Optional, and the nose is built to take more than one answer.
- Class
- Any camera and video transmitter that fit the nose cone. Two nose cones are in the kit, for 15 mm and 21 mm cameras, plus a STEP file if yours is neither.
- Branded offerings
- Digital: DJI O3 Air Unit (camera 20 mm wide), DJI O4 Air Unit Pro (camera 20 mm wide), DJI O4 Air Unit (camera 12.4 mm wide). Analogue: any 19 mm micro camera with a 5.8 GHz video transmitter, for builders who want maximum range.
Before you order
Nine things worth checking twice. Every one of them is a mistake somebody has already made.
The list is free. The aircraft is the kit.
This page tells you what to buy. The kit tells you what to do with it: the full STL pack, the assembly manual, the print profile and a starter ArduPilot configuration, in your hangar for good.
