The basic P.166 was a development of the P.136 amphibian and flew for the first time on 26 November 1957.[1] The P.166 had a new fuselage and tail unit but retained the wing and engines from the P.136. Several were purchased for use as executive transports or as feeder and taxi aircraft. The improved P.166B was more powerful and had up to ten seats; a prototype was first flown on 27 March 1962.
A further version, the 12-seater P.166C with improved undercarriage, first flew on 2 October 1964.
A turboprop-powered variant, the P.166D, was developed with Lycoming LTP101 engines and it first flew on 3 July 1976.
First production version with non-slanted cockpit side windows. Accommodation for two pilots and six–eight passengers. Powered by 340 hp (250 kW) Lycoming GSO-480-B1C6 engines,[3] 29 built.[2]
P.166B Portofino
Revised, more powerful version with longer nose. Powered by two 380 hp (283 kW) Lycoming IGSO-540-A1C engines.[4] Five built.[5]
P.166BL2/APH
Photo survey aircraft for Italian Air Force. Two built.[6]
Feederliner version of P.166B with external landing gear pods to allow a revised cabin giving room for up to 12 passengers.[7] Two built.[5] or another source gives four built[2]
P.166DL3
Light utility transport version, powered by two 450 kW (600 hp) Lycoming LTP101-600 turboprop engines.[8] 14 built including sub-variants.[2]
P.166DL3/APH
Photo survey aircraft version of -DL3. Six built for Italian Air Force.[9]
Paramilitary maritime patrol (SEM - Sorveglianza Ecologia e Marittima - Maritime and ecological surveillance) version of DL3. 12 aircraft built for Italian Coast Guard and ten for Guardia di Finanza.[11]
P.166DP1
Re-engined version with 615 shp (459 kW) Pratt & Whitney PT6A-121 turboprops. Eight converted (two from -DL3 and six from -DL3/SEM) for Guardia di Finanza.[12]
P.166M
Military version of P.166A, 49 built for Italian air force.[6]
P.166S Albatross
Coastal patrol, search and rescue version of the South African Air Force with longer P.166B-type nose and larger tip tanks, 20 built.[10]
Italian Air Force received 49 P.166M between 1960 and 1968,[15] two P.166BL2/APH photo survey aircraft[6] and six P.166-DL3/APH photo survey aircraft.[9]
Guardia di Finanza received two ex-Alitalia P.166-DL3 as trainers/utility aircraft in 1990 and ten new-built P.166-DL3/SEM between 1991 and 1995.[11] Eight aircraft converted to P.166DP1 standard.[12] Planned to remain in service until 2020.[16]
On 14 August 2011 two privately owned P.166s (formerly with the South African Air Force) flying in formation crashed near Tzaneen in South Africa when they both flew into a cliff face near the summit of Mamotswiri Peak in dense mist.[17] All thirteen on board the two aircraft were killed.
Specifications (P.166-DL3)
Flight deck
Data fromJane's all the World's Aircraft 1988–89[18]
Fuel capacity: 2 x 212 L (56 US gal; 47 imp gal) outer wing tanks + 2x 312 L (82 US gal; 69 imp gal) tip-tanks + 1x 118 L (31 US gal; 26 imp gal) fuselage collector-tank
Auxiliary fuel system: 1 x 236 L (62 US gal; 52 imp gal) optional fuselage tank, with provision for 2x 177 L (47 US gal; 39 imp gal) or 284 L (75 US gal; 62 imp gal) under-wing drop tanks
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