Napier Rapier

E878364

The Napier Rapier was a British air-cooled, 16-cylinder H-type aircraft engine developed in the early 1930s for light aircraft and racing planes.

All labels observed (2)

Label Occurrences
Napier Dagger 2
Napier Rapier canonical 2

How this entity was disambiguated

Statements (44)

Predicate Object
instanceOf H‑type engine ⓘ
aircraft engine ⓘ
piston engine ⓘ
application air racing ⓘ
civil aviation ⓘ
blockMaterial aluminium alloy crankcase ⓘ
bore 3.5 in ⓘ
category 1930s aircraft piston engine ⓘ
Napier aircraft engines ⓘ
configuration H‑configuration ⓘ
coolingSystem air‑cooled ⓘ
countryOfOrigin United Kingdom ⓘ
crankshaftConfiguration two crankshafts geared together ⓘ
cylinderArrangement four banks of four cylinders ⓘ
cylinderHeadType aluminium alloy cylinder heads ⓘ
designedFor light aircraft ⓘ
racing aircraft ⓘ
designGoal compact high‑revving engine ⓘ
designPeriod interwar period ⓘ
developer Napier engineering team led by Arthur Rowledge ⓘ
displacement approx. 1,960 cu in ⓘ
era early 1930s ⓘ
fuelType aviation gasoline ⓘ
ignitionSystem dual ignition ⓘ
manufacturer D. Napier & Son ⓘ
marketRole competition to contemporary inline and radial light‑aircraft engines ⓘ
notableFeature unusual 16‑cylinder H‑layout for light aircraft ⓘ
numberOfCylinders 16 ⓘ
powerOutputClass low‑to‑medium power ⓘ
productionStart early 1930s ⓘ
propulsionType propeller‑driven aircraft engine ⓘ
status historic engine ⓘ
out of production ⓘ
stroke 3.5 in ⓘ
successor Napier Dagger ⓘ
supercharging naturally aspirated ⓘ
typicalMounting nose‑mounted tractor installation ⓘ
usedBy British private owners and racing pilots ⓘ
usedIn experimental aircraft ⓘ
record‑attempt aircraft ⓘ
usedInAircraft Blackburn B‑1 Segrave ⓘ
de Havilland DH.71 Tiger Moth (modified examples / trials) ⓘ
various British light aircraft prototypes ⓘ
valvetrain single overhead camshaft per bank ⓘ

How these facts were elicited

Referenced by (4)

Full triples — surface form annotated when it differs from this entity's canonical label.

Napier Lion → successor → Napier Rapier ⓘ
Napier Lion → successor → Napier Dagger ⓘ
linked to: Napier Rapier
Napier aircraft engines → notableEngine → Napier Dagger ⓘ
linked to: Napier Rapier
Napier aircraft engines → notableEngine → Napier Rapier ⓘ