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Asrori Asrori
Politeknik Negeri Malang
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Modification of counter recoil system in pneumatic counter-tank weapon (CTW) for recoil force reduction Rosady, Siti Duratun Nasiqiati; Budiarta, Transisma; Adiwidodo, Satworo; Asrori, Asrori; Buwono, Haris Puspito
Jurnal Polimesin Vol 24, No 2 (2026): April
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jpl.v24i2.8208

Abstract

The rapid advancement of defense technology within the Indonesian Army (TNI AD) requires effective, realistic training systems for Counter-Tank Weapons (CTW). Pneumatic CTW trainers have been developed as cost-effective alternatives to live-fire training; however, field tests indicate significant recoil that reduces weapon stability and shooter comfort. Unlike conventional recoil mitigation methods that rely on external dampers, springs, or structural reinforcement, this study proposes an integrated, collision-based counter-recoil mechanism embedded within the valve lever assembly that reduces recoil through internal momentum transfer without adding complex external components. This study aims to design and evaluate the proposed mechanism to reduce recoil force while maintaining firing accuracy and projectile range. Experimental tests were conducted at Politeknik Angkatan Darat under controlled conditions, using three pressure levels (10-30 bar) and three counter pad masses (0.5-1.5 kg), with three repetitions per condition. Recoil force was measured using a calibrated load cell sensor, while projectile range was recorded manually. Data were analyzed using two-way ANOVA to evaluate the effects of pressure and pad mass on recoil behavior. The results show that the proposed internal collision-based counter recoil system significantly reduced recoil force across all pressure levels. At 30 bar, recoil decreased from 81.7 N (without modification) to 65.7 N using a 0.5 kg pad and further decreased to 34.33 N with a 1.5 kg pad. Statistical analysis confirmed that both pressure and pad mass significantly influence recoil force (p 0.001, R² = 98.35%). In addition, the maximum firing range increased from 190.7 m to 221.7 m, indicating improved energy transfer and launcher stability. Although the 1.5 kg counterpad had the lowest recoil force, its additional mass may reduce launcher mobility and operator comfort. The 1.0 kg pad provides a balanced compromise between recoil reduction and ergonomic usability, making it more suitable for routine training applications. These findings demonstrate that the proposed internal collision-based counter recoil mechanism offers an effective, passive, lightweight, and practical solution for mitigating recoil in pneumatic CTW training launchers while preserving operational realism and ease of maintenance.
Co-Authors Adikusuma, Thomas Agus Harijono AGUS SETIAWAN Agus Sujatmiko Agus Sujatmiko Akhmad Faizin Alfarisyi, Mirza Fathus Syifa Ariani Ariani Ariani Ariani Arindrian Kurnia Budiarta, Transisma Cucuk Evi Lusiani Dani, Agus Dony Perdana Eko Naryono Eko Naryono Eko Yudiyanto Eryk, Eryk Eryk, Irwan Heryanto Faizal, Elka Faizul Ahmad Jatmiko FATHUR ROHMAN gumono Gunawan, Chandra Hadi Susilo, Sugeng Harahap, M. Zusriansyah Fahrudin Hari Rarindo Harie S Jaya Harie S. Jaya Harijanto, Priya Surya Harijono, Agus Haris Puspito Buwono Hasan Abdillah Helmy, Abdullah Heryanto Eryk, Irwan Heryanto, Irwan Hilmi Iman Firmansyah Imam Mashudi Jaya Harie Satiyadi Khalimatus Sa'diyah Kris Witono Kris Witono Lisa Agustriyana Ludfi Setiawan Lulut W Lusiani, Cucuk Evi M Hasyim Nurwansyah M. Hilmi Syiva Afiat M. N. Wahyudi Abdullah Mardyansyah, AA Martawati, Mira Esculenta Maskur Maskur Mira Esculenta Martawati Mohammad Noor Hidayat Mohammad Noor Hidayat Mokhammad Khatami Muhamad Hanifudin Muhamad Zulvi Anam Muhammad Fakhruddin Nanang Qosim Novembrian Isam Dinata Nugroho, Pipit Wahyu Nurhadi - Pondi Udianto Pranoto, Bayu Putu Wijaya Sunu Qais Rakhmanda Yoga Pratama R.N. Akhsanu Takwim, R.N. Akhsanu Rahmad, Cahya Rahmat Muhamad Hudan Rahmat, Muhamad Hudan Raihan Insan Nararya RAMDHANI, ACHMAD FAJAR Ridho Ilham Rifa’i, Muhamad Ronilaya, Ferdian Sa'diyah, Khalimatus Santoso, Asfari Hariz Sapto Wibowo Saputra, Masramdhani Satworo Adiwidodo Simbolon, Massuradi Siti Duratun Nasiqiati Rosady Subagiyo Subagiyo Sugeng Hadi Sugeng Hadi Susilo Sugeng Hadi Susilo Sugeng Hadi Susilo Suharto, Nugroho Sulistyono Sulistyono Sulistyono Sulistyono Susilo, Sugeng Hadi Suyanta Suyanta Syamsul Ph.D M.A. Hadi Walid, Achmad Yudianto, Eko Yuliyanto, Catur Fajar Zainuri, Ach. Muhib