xSonomy← Catalogue
UAV · Loitering munition

ST-35 Silent Thunder

Athlon Avia · Ukraine

Precision loitering munition (unveiled 2019) vertically launched via a multirotor carrier that also relays control and payload data. Carries a 3.5 kg warhead (HE/thermobaric/HEAT/incendiary options) to a ~30 km operational radius.

CountryUkraine
SubcategoryLoitering munitions
SubtypeLoitering munition
RoleLoitering munition
ClassSmall
MissionStrike
MTOW (kg)9.5
OperatorsUkraine
Frame typeFPV–loitering
PropulsionElectric
Range (km)30
Power sourceBattery
Combat-provenUnknown
Launch methodVTOL
Max payload (kg)3.5
Max speed (km/h)140
Production statusIn production
Airframe / lift typeMultirotor – quad
DomainAerial (UAV/UAS)
Mission / use case – dual-use / improvisedFPV strike
Mission / use case – militaryLoitering munition (one-way attack)
Origin / supply chainDIY / FPV kit, Military-grade
PropulsionElectric (LiPo / Li-ion)
Range / enduranceClose range (5–50 km, 1–6 hrs)
Signature / detectabilityRCS – small
Speed regimeMedium (50–150 km/h)
Strike depth / operational roleClose strike / FPV (0–20 km, front line, individual targets)
Threat vectorKinetic – impact, Kinetic – loitering munition
Weight / classClass I – Mini (2–20 kg), FAA <25 kg (Part 107)
Visit manufacturer ↗
Review-stage catalogue data — specs corroborated from manufacturer and secondary sources; not for procurement decisions. Source: athlonavia.com/en/st-35-silent-thunder