This case arises from a mini ship-to-shore gun battle in the Mississippi River. The vessel, no ship of the line, is a 15-foot outboard boat. The combatants are irregular forces, fleeing deer poachers afloat and outraged defenders of a private hunting preserve ashore. The armament, rather than coastal batteries and earronades on the gun deck, consists of hunting rifles. The forces encountered one amother as the result of actual, though unintended, aerial reconnaissance. The engagement commenced with solid shot — from a rifle — fired from shore across the bow of the boat to signal it to stop. It continued on course. The gunners ashore lowered their elevation and fired into the water beside the boat. The boat continued in flight at full speed ahead, and the next rounds were fired into the boat, holing the boat and wounding the man at the tiller, who was the senior man on board, and another. The force afloat, having suffered these serious casualties, dispatched a few rounds shoreward, broke off the engagement and retired from the scene in disarray. The land detachment won the battle but lost the lawsuit. We affirm.
The central issue is whether the tort claims of plaintiffs, casualties aboard the boat, are within admiralty jurisdiction. In addition, defendants-appellants contend that the court erred in failing to sustain their plea of laches to this 5 y2 year old cause of action and in finding Chicot Land Company vicariously liable for the' actions of defendants Smith and Bledsoe.
On November 27, 1965 Allen Eugene Kelly, Sr. and his three sons, all residents of Mississippi, slipped across the Mississippi River to Woodstock Island in their 15-foot boat for a day of clandes*522tine deer hunting. The island is located on the west side of the main channel. It is covered with timber and well stocked with wild game, especially deer. It was owned by Anderson-Tully Co., which had granted to Chicot Land Company, an Arkansas land management corporation, a license for exclusive hunting rights on the island. In return for the license Chicot paid a fee, maintained roads and fire lanes on the island, employed the caretaker, and assumed general responsibility for the well being of the island. Woodstock Hunting Club, the hunting rights licensee prior to Chicot, was an association formed to enjoy hunting on the island and to communally share the expenses of the license and hunting. Chicot succeeded to the hunting club’s license because the club was unable to pay the annual rental regularly or to perform the necessary maintenance and construction on the island. After Chicot took over the license the club members continued to enjoy the hunting rights, and the club reimbursed Chicot for'its expenses as the club members paid their dues. Defendant J. C. Smith, a resident of Arkansas, had been the caretaker of the island for its various owners since the 1930’s. He was also the prime mover in organizing and running the hunting club.1 At the time of the incident Smith was employed by Chicot to maintain its heavy construction equipment, and to serve as caretaker for the island.2
During the afternoon of November 27, 1965, Defendants Smith and Bledsoe were at the clubhouse on the island. Another club member flying a light airplane evidently sighted the Kellys’ boat and dropped a note to Smith and Bledsoe informing them of the suspected poachers on the island. The Kellys, suspecting discovery, took to their boat in an attempt to flee. Simultaneously, Smith and Bledsoe rushed to where the note indicated the boat was docked. At that point the parties’ stories diverge. The exchange of gunfire ensued. Smith and Bledsoe claimed that they signaled and yelled at the Kellys to return to the island in order to establish their identity and that the Kellys responded by shooting at them. The Kellys contended that Smith and Bledsoe fired first. The District Court found that Smith and Bledsoe initiated the firing, first across the bow of the vessel to indicate that it should stop, then into the water next to the boat. The Kellys continued at full speed to try to get out of range, and Kelly, Sr., indicated he would not return to the bank. The two men on shore then fired into the boat, striking Kelly, Sr., and Garland Wayne Kelly. One of the Kelly sons then fired his rifle at Smith and Bledsoe.
In early 1971 Kelly, Sr., and his injured son, Garland Wayne Kelly, filed suits for their injuries in federal district court against Smith, Bledsoe, Chi-cot, Anderson-Tully, and the members of the Woodstock Hunting Club, alleging diversity of citizenship and admiralty jurisdiction.3 The District Court dismissed the Club on a motion for summary judgment.4 ***After a nonjury trial the court concluded that despite the Kellys’ status as trespassers, Chicot, Smith, and Bledsoe were jointly and severally liable to Kelly, Si’., for $69,772.40 and to Garland Wayne Kelly for $2,593.96. It found that Chicot was vicariously liable for Smith’s actions under respondeat superior and for Bledsoe’s actions because *523Bledsoe was acting under the instructions and at the request of Smith to protect and defend Chicot’s valuable hunting rights on the island. AndersonTully was absolved of liability because Smith and Bledsoe were not acting in its behalf. Integral to the District Court’s decision were its conclusions that the cause of action was one in admiralty and that the Kellys were not barred by laches. Those are the issues on appeal, plus the issue of Chicot’s vicarious liability. Defendants do not contest, under the clearly erroneous rule, the District Court’s finding that Smith and Bledsoe were the aggressors, nor the conclusions that Smith and Bledsoe committed the intentional tort of assault and battery and that the force used in protecting Chicot’s exclusive hunting rights was excessive.
a. Admiralty tort jurisdiction
The issue of jurisdiction is crucial. If jurisdiction was sustainable only on diversity grounds the Kellys’ Erie-bound claim was barred by the Mississippi one-year statute of limitations for assault and battery cases. Miss.Code Ann. § 732.5
Historically the standard for determination of maritime tort jurisdiction was viewed as a question of the locality of the tort. Maritime law governed' only those actions where the “substance and the consummation of the injury” took place on navigable waters. The Plymouth, 70 U.S. (3 Wall.) 20, 33, 18 L.Ed. 125, 127 (1886). The strict locality standard was perfunctorily repeated with such frequency6 that most courts seemingly lost track of the failure of the Supreme Court to explicitly decide whether maritime tort jurisdiction turned solely on maritime locality. In Atlantic Transport Co. v. Imbrovek, 234 U.S. 52, 34 S.Ct. 733, 58 L.Ed. 1208 (1914), a case involving injuries sustained by a stevedore on board a vessel while loading copper, the Court upheld federal admiralty jurisdiction but explicitly found it unnecessary to consider whether maritime locality alone was sufficient. The Court did not address the question directly again until 1972.7 In Executive Jet Aviation v. Cleveland, 409 U.S. 249, 93 S.Ct. 493, 34 L.Ed.2d 454 (1972), plaintiff’s plane lost power from ingesting seagulls into its engines while taking off from defendant’s airport and came to rest and sank off the end of the runway in Lake Erie. Plaintiff sued in admiralty, alleging that defendant negligently failed to keep its runway free of seagulls or to warn of their presence. The Court of Appeals found that the tort occurred on land, therefore the case was not cognizable in admiralty. Executive Jet Aviation, Inc. v. City of Cleveland, 448 F.2d 151, 154 (CA6, 1971). But the Supreme Court faced the broader question of whether maritime locality alone is sufficient to create admiralty tort jurisdiction.
*524In the factual context of Executive Jet the Court declared:
. . . the mere fact that the alleged wrong “occurs” or “is located” on or over navigable waters — whatever that means in an aviation context — is not of itself sufficient to turn an airplane negligence case into a “maritime tort.” It is far more consistent with the history and purpose of admiralty to require also that the wrong bear a significant relationship to traditional maritime activity. . . .
409 U.S. at 268, 93 S.Ct. at 504, 34 L.Ed.2d at 467.
In reaching its decision about airplane negligence cases the Court pointed out that
. . . there has existed over the years a judicial, legislative, and scholarly recognition that, in determining whether there is admiralty jurisdiction over a particular tort or class of torts, reliance on the relationship of the wrong to traditional maritime activity is often more consonant with the purposes of maritime law than is a purely mechanical application of the locality test.
Id. at 249, 93 S.Ct. at 501, 34 L.Ed.2d at 463.
Foreshadowing the Supreme Court’s analysis and conclusion in Executive Jet, this court recognized the inadequacies of the strict locality test in Watz v. Zapata Off-Shore Co., 431 F.2d 100, 109-111 (CA5, 1970). And in Peytavin v. Government Employees Ins. Co., 453 F.2d 1121 (CA5, 1972), we concluded that the facts and circumstances of each claim must have a substantial connection with maritime activities or interests in order to invoke the admiralty jurisdiction of the federal courts.8
The analysis and thrust of Executive Jet, coupled with our decision in Peytavin, dictate the conclusions that maritime locality alone is no longer sufficient to sustain maritime jurisdiction,9 and that the wrong must bear a significant relationship to maritime activity.
In Executive Jet, Peytavin, and Watz, the courts presented and analyzed the rationale for adopting significant relationship to maritime activity as a requirement for admiralty jurisdiction. The strict locality test suffered from a susceptibility to mechanical application and from a tendency to create inconsistent results in cases otherwise conceptually analogous. In Smith & Son v. Taylor, 276 U.S. 179, 48 S.Ct. 228, 72 L.Ed. 520 (1928), a longshoreman knocked from a wharf into the water by a sling being lowered from a vessel had remedies only under state law, while in Minnie v. Port Huron Term. Co., 295 U.S. 647, 55 S.Ct. 884, 79 L.Ed. 1631 (1935), the longshoreman who was standing on the vessel and knocked onto the wharf had federal law remedies. Another problem engendered by the strict locality rule was determination of where the tort *525occurred. See the Sixth Circuit’s opinion in Executive Jet, supra. Indeed courts often equated injury with the broader concept of tort, which encompasses not only injury but causation and considerations of public policy. In 1948, as a result of cases which held that injury to property on land caused by vessels on navigable streams was not a maritime tort, e. g., The Plymouth, supra, Congress adopted the Extension of Admiralty Act, 46 U.S.C. § 740. See, Black, Admiralty Jurisdiction; Critique and Suggestions, 50 Colum.L.Rev. 259 (1950); 7A Moore, Federal Practice, Admiralty ¶ .325 [4].
The District Court found that the stretch of the Mississippi River where the Kellys were injured was navigable. The evidence of navigability, including testimony by a tugboat captain who regularly traveled that stretch, is sufficient to support the court’s finding, and it is not clearly erroneous. Rule 52(a), F.R.Civ.P.; McAllister v. United States, 348 U.S. 19, 75 S.Ct. 6, 99 L.Ed. 20 (1954); Chaney v. City of Galveston, 368 F.2d 774 (CA5, 1966).
However, in this case admiralty jurisdiction does not arise from the bare facts that the Kellys’ injury was consummated on navigable waters while they were in a boat. While those facts weigh towards maritime jurisdiction, we must look to all the circumstances for a substantial maritime relationship. Both Peytavin and Executive Jet offer guidelines for the determination.
The incident in Peytavin was a rear-end car collision on a floating pontoon used for loading and unloading a ferry, which resulted in a whiplash neck and back injury to plaintiff. The court, admitting that both parties were using facilities which were connected to maritime commerce, focused on the relationship to maritime activities or interests of the parties, the nature and apparent cause of the accident, and the injury sustained. Finding that a rear-end collision between terrestrial vehicles, operated by landlubbers, and resulting in a typical automobile traffic accident injury lacked sufficient maritime flavor, we concluded that admiralty jurisdiction was absent. 453 F.2d at 1126.
In Executive Jet, the Court recognized that superficial similarities may exist between the plights of sinking ships and airplanes downed on water but pointed out that “. . . the plane’s unexpected descent will almost invariably have been attributable to a cause unrelated to the sea. ...” The Court also stressed the inherent differences between water and air transportation and said:
[Admiralty] [r]ules and concepts . are wholly alien to air commerce, whose vehicles operate in a totally different element, unhindered by geographical boundaries and exempt from the navigational rules of the maritime road. The matters with which admiralty is basically concerned have no conceivable bearing on the operation of aircraft over land or water.
409 U.S. at 270, 93 S.Ct. at 505, 34 L.Ed.2d at 468. The Court did not decide whether an aviation tort could ever bear a “sufficient relationship to traditional maritime activity to come within admiralty jurisdiction . . .,” and indeed it suggested that an aircraft performing a function traditionally performed by waterborne vehicles might bear a sufficient relationship. 409 U.S. at 270, 93 S.Ct. at 505, 34 L.Ed.2d at 469. See, e. g., Hornsby v. Fishmeal Co., 431 F.2d 865 (CA5, 1970) (mid-air collision of light aircraft used in spotting schools of fish); Hark v. Antilles Airboats, Inc., 355 F.Supp. 683 (D.V.I., 1973) (seaplane crash).
From the facts and analysis of Executive Jet and Peytavin we can discern factors to be considered in the circumstances before us: the functions and roles of the parties; the types of vehicles and instrumentalities involved; the causation and the type of injury; and traditional concepts of the role of admiralty law.
The party most seriously injured was the pilot, the person responsible for the *526safe navigation of the river. The vehicle involved was a boat, not an automobile or airplane, whose function was transportation across navigable waters, a traditional role of watercraft.10
The other instrumentalities involved— firearms — and the injuries they caused, are not so inherently indigenous to land as to preclude any maritime connection. Additionally, upholding admiralty jurisdiction does not stretch or distort long evolved principles of maritime law. Admiralty has traditionally been concerned with furnishing remedies for those injured while traveling navigable waters.
Policy militates toward admiralty jurisdiction in this case. The admiralty jurisdiction of federal courts stems from the important national interest in uniformity of law and remedies for those facing the hazards of waterborne transportation. Rifle fire directed at a vessel, albeit a small one, on a major commercial artery, and injuring the pilot, presents sufficient danger to maritime commerce for the federal courts of admiralty to assume jurisdiction and to furnish remedies to those aboard the vessel and injured by that conduct. Regardless of whether the Kellys had available remedies in state courts, the federal interest in protecting navigation on the Mississippi River overrides any considerations of federal-state comity or conflicts of interest.
b. Laches
In Watz v. Zapata Off-Shore Co., supra, and Powell v. City of Key West, 434 F.2d 1075 (CA5, 1970), we discussed the interrelated and often overlapping elements, excuse for delay and prejudice to the defendant, that bear on whether a long-delaying plaintiff is time-barred. See also, McMahon v. Pan American World Airways, Inc., 297 F.2d 268 (CA5, 1962); Molnar v. Gulf coast Transit, 371 F.2d 639 (CA5, 1967); Akers v. State Marine Lines, 344 F.2d 217 (CA5, 1965). The Kellys were diligent in seeking to bring this suit, but, the court found, were thwarted by the failure of reputable law firms to diligently represent them. The District Court found that the delay by the Kellys in bringing the suit was justifiable, and that defendants suffered no prejudice, in fact were aided by the delay. An unknown witness became available to defendants after the running of the Mississippi statute of limitations. The trial judge enjoys a wide area of discretion in ruling on a claim of laches, Powell v. City of Key West, supra, and we cannot say that he exceeded it in this case.
c. Chicot’s vicarious liability
Although some evidence suggests that Chicot lacked substantial control over Smith’s activities on the island, there is sufficient evidence indicating that Smith was indeed acting as an agent protecting Chicot’s interests on the island to warrant the finding of vicarious liability. The conclusion that Bledsoe was acting to protect Chicot’s interest under the instructions of Smith also finds sanctuary in the plainly erroneous rule.
Affirmed.