Iran said earlier this month that it had successfully test-fired the new Fateh-110 model and that it was equipped with a more accurate guidance system.

“This missile is one of the most precise and advanced land-to-land ballistic missiles using solid fuel,” Vahidi was quoted as saying by Fars.

In July, Iran said it had successfully test-fired medium-range missiles capable of hitting Israel, and tested dozens of missiles aimed at simulated air bases.

It also presented a more powerful, 5,000-horsepower sea-borne engine, the Bonyan-4, Fars quoted Vahidi as saying. A previous version had 1,000 horsepower, the Iranian Students’ News Agency (ISNA) said.

Military experts have cast doubt on Iran’s claims of weapons advances, especially its assertions about its missile program, saying Tehran often exaggerates its capabilities.

“The Fateh-110 has a crude guidance and control system that operates during the missile’s ascent” rather than during final descent, said Michael Elleman, senior fellow for missile defence at the International Institute for Strategic Studies.

“The Fateh-110 appears to lack the subsystems needed to effect terminal steering,” he said in an email.

Iran on Tuesday also presented Armita, an “airborne laboratory” to help test aircraft launch systems and oxygen generation and train fighter pilots, Fars reported.

Vahidi said it was named after the daughter of Dariush Rezaeinejad, an Iranian scientist who was shot dead last year.