Resistência "Alerta" – builder unknown


Tugboat operated by Resistência (Grupo Lutamar) ¹ seen on the Tejo River, Lisboa, in May 2014. It is the tugboat named "Alerta" and registered LX-101-RL. I do not know its origin ². Several published sources say it was completed in 1913 and originally delivered to Sociedade Geral de Comércio, Indústria e Transportes (Lisboa) under the name "Cintra". Steel hull and superstructure (presumably, original wooden superstructure). It has an overall length of 56 ft and is equipped with a 324 kW (435 hp) Caterpillar main engine, providing a tractive effort ³ of 7 tons. Top speed is 10 knots. 

Due to their relative simplicity and, above all, robustness, tugboats normally have long service lives, with equipment being updated according to the evolution of operational needs. The "Alerta", small but deep-voiced and sufficiently muscled for its functions, is proof of that and finding it on the Tejo River in 2023 is still a pleasure for many of us. I hope that one day, after retirement, someone will preserve this long-lived tug with the dignity it deserves. Here, we see the "Alerta" along the south bank of the Tejo River, approaching Cacilhas on a splendid spring morning. ●


Rebocador operado pela Resistência (Grupo Lutamar) ¹ visto no Rio Tejo, Lisboa, em Maio de 2014. Trata-se do rebocador com o nome de "Alerta" e registado LX-76-RL. Desconheço a sua origem ². Diversas fontes publicadas referem ter sido completado em 1913 e originalmente entregue à Sociedade Geral de Comércio, Indústria e Transportes (Lisboa) com o nome de "Cintra". Casco e superestrutura em aço (presumivelmente, superstrutura original em madeira). Tem um comprimento total de 17,08 m e está equipado com uma máquina principal Caterpillar de 324 kW (435 hp), disponibilizando um esforço de tracção ³ de 7 toneladas.  

Pela sua relativa simplicidade e sobretudo robustez, os rebocadores têm normalmente longas vidas de serviço, actualizando-se o equipamento de acordo com a evolução das necessidades operacionais. O "Alerta", pequeno, mas de voz grossa e suficientemente musculado para as suas funções, é prova disso e encontrá-lo no Rio Tejo em 2023 é ainda um gosto para muitos de nós. Espero que um dia, depois de se reformar, alguém preserve este longevo rebocador com a dignidade que merece. Aqui, vemos o "Alerta" junto à margem sul do Rio Tejo, aproximando-se de Cacilhas numa esplêndida manhã de Primavera. ● 


¹  Lutamar - Prestação de Serviços à Navegação, Lda., Setúbal. | Resistência - Serviços à Navegação, Lda., Setúbal. 
²  I don't know its origin. However, the design of the "Cintra" reminds me of some small "sleepboten" built in The Netherlands until the mid-thirties. ● Desconheço a sua origem. Todavia, o desenho do "Cintra" faz-me lembrar alguns pequenos "sleepboten" construídos nos Países Baixos até meados dos anos trinta. 
³  In maritime context, "Bollard pull". 


Resistência 

Name

Registration

Year

Built

Alerta

Tugboat

LX-76-RL

?

builder unknown

1913?

#?

Cintra → Alerta


● References 

Wikipedia | "Caterpillar" 
ShipSpotting | "Cintra/Alerta"
Wikipedia | "Tugboat" 
Wikipedia | "Bollard pull"
Transportes XXI | "Rebocadores de Lisboa" 
Wikipedia | "Lisboa"
Wikipedia | "Lisboa" pt-PT
Wikipedia | "Port of Lisbon"
Wikipedia | "Porto de Lisboa" pt-PT

1 kg → 2.205 lb avdp 
1 t (metric) – 2204.623 pound (lb) (avdp) 
1 kW → 1,360 hp (metric/PS)
1 kW → 1,341 hp
1 hp (metric/PS) → 0,986 hp
1 km → 0,621 mile (international)
1 m → 3.281 ft 
1 nautical mile → 1.15078  mile → 1,852 km
1 kn or knot → 1.15078 mph → 1,852 km

Comments

Post a Comment

Popular posts from this blog

Transtejo "Algés" – FBM Marine TransCat

Image
Ferry operated by Transtejo  seen on the Tejo River arriving at Terminal Fluvial do Seixal in July 2019. This ferry of the catamaran type, named "Algés" and registered LX-3168-TL, is an FBM Marine TransCat completed in 1995, yard number 1422. Aluminum hull and superstructure. It has an overall length of 147.6 ft and can accommodate 496 passengers (496+4). Fainsa Arianne seats. It uses two 960 kW (1287 hp)  Deutz MWM TBD 616 V16 main engines and two Lips water jets, and can operate in just 6.6 ft of water. Service speed is 22 knots. Its class includes four vessels – "Algés", "Castelo", "Chiado" and "Bica". "Algés" and "Castelo" are designed and built in the United Kingdom by FBM Marine   ¹ . "Chiado" and "Bica" are built under license in Portugal by Estaleiros Navais do Mondego  ² . Similar in appearance, vessels from the "Algés" class are shorter and less powerful than those in the ...
Read more

Transtejo "Eborense" – Estaleiros Navais de Viana do Castelo

Image
Ferry operated by Transtejo seen on the Tejo River heading to Lisboa in October 2013. This ferry of the monohull type, named "Eborense" and registered LX-2794-TL, is built in Portugal by Estaleiros Navais de Viana do Castelo   ¹  and completed in 1954 with yard number 23. Steel hull and superstructure. It has an overall length of 154.3 ft and can accommodate 346 passengers and 30 vehicles (346+30 v+5). It is equipped with two 364 kW (495 hp) MTU 12V 183 TC91 main engines and two fixed pitch propellers. Top speed is 11 knots. Withdrawn in 1983, the "Eborense" is rebuilt in 1991 and returned to regular service, first between Lisboa (Cais do Sodré) and Cacilhas and then between Lisboa (Belém) and Trafaria, where it remains until 2017. Despite its historical value, the place it occupies in the hearts of successive generations of commuters and with a robustness and reliability that have not been surpassed by more recent constructions, it was not possible to keep the fe...
Read more

Back to Normality

Image
After the disastrous choice of the British operator VODAFONE as my internet provider , which sent my connectivity back into the dark ages and whose mediocre or non-existent service affected five months of publications (September, October, November, December and January), it is finally possible to bypass the obstacle with the support of an interested party. The return to normality should occur from February 20th, closing with sixteen publications the cycle dedicated to passenger vessels in regular or tourist service on the Tejo River. As a note of interest, partly motivated by this disastrous experience with the British operator VODAFONE, I will soon launch a new digital space –  UNPLEASANT | LX . It will be interesting. By the way, the problem reported to the operator VODAFONE in August 2023 is still unsolved in February March April October November 2024 . Literally, unbelievable . As I wrote in one of several texts published on social media and made known in Berkshire, «[…] ...
Read more