P&W R-1340 details

General information about Wing42's Lockheed Vega.
Jarek
Posts: 76
Joined: 18 Jun 2018, 21:31

Re: P&W R-1340 details

Post by Jarek » 12 Jul 2018, 23:28

Some technical data for R-1340 Wasp. Source: "Aviation" Magazine, March 22, 1930.

Rated HP and RPM at Sea Level: 420-2000
Maximum HP and RPM at Sea Level: 450-2100 (aka British 105%)
Weight Dry without Hub or Starter: 690
Weight per Rated HP: 1.64
Bore and Stroke (in.): 5.75 x 5.75
Compression Ratio: 5.2
B.M.E.P.: 124
Displacement (Cu.in.): 1344
Diameter of Mounting Ring or Distance Between Bearers (in.) 23.375 (23 3/8")
Length Without Starter (in.) 43.375
Guaranteed Fuel Consumption at Rated HP Lb./HP./Hr.: 0.55
Oil Consumption Lb./HP./Hr.: 0.035
Cylinder Construction: Aluminum / Steel
No. Intake/Exhaust valves per cylinder: 1/1
Make Spark Plugs Supplied with Engine: BG
Type of Ignition: 2 x Magnetic
Make Ignition: Scintilla
Shipping Weight Crated: 1150
Dept. of Commerce License: 14
Cost at Factory: 7,200$

Post Reply