RM1 or variant, may refer to: * RM1, the postcode for a part of Romford, see

RM postcode area The RM postcode area, also known as the Romford postcode area,Royal Mail, ''Address Management Guide'', (2004) is a group of twenty postcode districts in south-east England, within nine post towns. These cover parts of eastern Greater London and ...

* RM1 (Recife Model 1), a quantum computational method of calculating molecular electronic structure, a variant of

Austin Model 1 Austin Model 1, or AM1, is a semi-empirical method for the quantum calculation of molecular electronic structure in computational chemistry. It is based on the Neglect of Differential Diatomic Overlap integral approximation. Specifically, it is a ...

* Valmet RM 1, a class of two-bogie four-axle tram, see

List of Valmet products This is a list of Valmet products. The Valmet Corporation is a developer and supplier of technologies, automation systems and services for the pulp, paper and energy industries but Valmet's history as an industrial operator stretches back over 20 ...

* RocketMotorOne (RM1), a Tier-1 rocket engine for

SpaceShipOne SpaceShipOne is an experimental air-launched rocket-powered aircraft with sub-orbital spaceflight capability at speeds of up to 3,000 ft/s (900 m/s, 3240 km/h), using a hybrid rocket motor. The design features a unique "feathering" a ...

* RM1, a cancelled space station

Russian Research Module The Russian Research Module (RM) was to be a Russian component of the International Space Station (ISS) that provided facilities for Russian science experiments and research. History The original designs of ISS featured two research modules shape ...

* RM1, a type of railcar in the

NZR RM class The RM class was the classification used by the New Zealand Railways Department (NZR) and its successors gave to most railcars and railbuses that have operated on New Zealand's national rail network. "RM" stands for Rail Motor which was the comm ...

See also