G.R. No. 4606 - Rodriguez vs. Findlay and Co.

Plaintiff, Juan Rodriguez, was constructing a freight ship named Constancia in his Manila shipyard.
Defendant, Findlay & Co., represented by its agent, engineer William Swann, entered into a written contract with the plaintiff.
The contract was for the sale and delivery of machinery—including a brass propeller—to be installed in the Constancia.
The vessel was specially designed for coastwise trade with precise dimensional requirements (150 ft. long, 24 ft. beam, 14 ft. depth) as supplied in the plan by Juan Rodriguez.
The contract specifically stated: “One brass propeller of 8’ diameter and suitable pitch for an expected speed of ship about 912 knots; ... The whole to be suitable for a wooden ship 150 ft. long by 24 ft. beam and 14 ft. depth, as per plan supplied by Sr. Juan Rodriguez.”

Prior to the contract, Swann (the defendant’s agent and a recognized naval architect and engineer) made several inspections of the shipyard and the vessel.
The plaintiff, who lacked technical knowledge regarding marine machinery, relied on Swann’s expertise regarding the appropriate machinery specifications.
The plaintiff’s emphasis was on achieving a specific result – namely, that the propeller should enable the vessel to attain a speed of about 912 knots per hour.
Although the propeller’s pitch (a quality determining its performance) was not explicitly described in technical measurements (feet and inches), it was implicitly left to Swann’s professional judgment.

The defendant, upon manufacturing the propeller, observed that the originally specified propeller would not deliver the required speed; it proposed a 10-foot diameter propeller instead.
The plaintiff rejected the modification because it would have necessitated altering the vessel’s design.
The machinery—including the propeller as delivered—was installed in the vessel; however, during trials, the propeller produced less than 7 knots per hour instead of the promised 912 knots.
The essential point of controversy became the failure of the delivered propeller to provide the agreed performance, particularly in its pitch and area, which were critical to achieve the designated speed.

After the unsatisfactory performance of the original propeller, the plaintiff installed another propeller of slightly increased (by 6 inches) diameter but with appropriate pitch and area.
The replacement resulted in the vessel achieving approximately 9 knots per hour.
The plaintiff also incurred additional expenses and losses, including costs for coal consumed during trials, wages for employees involved in the testing, and other necessary expenses.
Furthermore, the defendant failed to deliver additional machinery and materials as agreed in the contract, for which specific amounts are detailed (totaling P1,133.45).

In the trial court, the defendant secured an affirmative judgment against the plaintiff for P9,216.60, based on the balance due from the purchase price.
The plaintiff moved for a new trial claiming that the evidence did not justify the decision and that the decision was contrary to law; this motion was denied.
The plaintiff’s appeal was perfected following the denial.
Ultimately, the court modified the lower court’s judgment by offsetting the damages for the breach from the balance due, arriving at an adjusted sum.

Whether the contract’s language requiring “a propeller of 8’ diameter and suitable pitch for an expected speed of ship about 912 knots” imposes a functional guarantee of performance.
Whether the defendant’s reliance on technical specifications (e.g., pitch, area, and diameter) sufficed to meet the contractual promise of achieving the designated speed for the vessel.
Whether leaving the determination of the specific pitch to the defendant’s agent, Swann, absolved the defendant of liability if the resultant speed fell short.

Whether the failure of the propeller to produce the required speed was attributable to its inherent construction—specifically its coarse pitch and excessive area.
Whether other factors, such as the vessel’s design (including the location relative to the sternpost and rudderpost), could have independently contributed to insufficient performance.
Whether the defendant’s explanation, based on the positioning of the propeller, sufficiently accounted for the breach, or if it was merely a diversion from the contractual specifications.

Whether the defendant, having failed to meet the contractually promised performance, is liable for damages, including consequential losses such as lost labor, testing expenses, and the purchase price of the inadequate propeller.
Whether the additional undelivered machinery and materials, for which the plaintiff incurred confirmed costs, should be considered in mitigating the balance due from the plaintiff.
The appropriateness of deducting the damages allowed from the overall balance due under the purchase contract.