REVISED: 11/3/08

Loening

SEE ALSO Keystone-Loening

1913: Grover Loening. 1917: Loening Aeronautical Engineering Co, 31 St at East River, New York NY. 1928: Merged with Keystone Aircraft Corp as Loening Aeronautical Div. 1929: Loening Aeronautical Engineering Co, Garden City NY. 1938: Ended operations.

1911 = 1pOlwMFb. Grover Loening. The world's first monoplane flying boat.

1917 = 1pOhw(?)M. No data found.
  Loening Air Yacht [N-ABCF] (1922 Aircraft Year Book)

Air Yacht 1922 = 5pO*MAm; 400hp Liberty 12 pusher; span: 45'0" length: 30'0" v: 125/110/x. The original Air Yacht. *Semi-enclosed cockpit with side windscreens, looked somewhat like an antique Republic Seabee. POP: 16, with 9 to US Army as S-1. Loening earned the Collier Trophy in 1921 for his design, for which major patents included #1,545,505 and #1,617,816.
Air Yacht 1928 (ATC 66, 67) = 5-7pO/CBAm; 500hp P&W Hornet; span: 46'8" length: 34'8" load: 2033# v: 112/100/52 range: 500. Pilot in open cockpit. $25,000. POP: unk [NC7770, et al]. Also with 500hp Wright Cyclone under (67) for similar performance, possibly the one appearing in registers as W Air Yacht [C4592] c/n 201.
Amphibian 1923 = OBAm.
C-1W Amphibian 1927 (ATC 34) = 7pOBAm; 410hp P&W Wasp; span: 45'8" length: 34'8" load: 2170# v: 116/97/54 range: 570. Leroy Grumman, Grover Loening. First of the "shoehorn-float" civil Loenings; derived from USN OL-8 design. $24,000; POP: 7 or 8. One C-4C also built under this ATC, and one repowered with 525hp Wright Cyclone as prototype C-2C.
  Loening C-2C

C-2C Air Yacht 1928 (ATC 90, 2-116) = 8pO/CBAm; 525hp Wright Cyclone; span: 46'8" length: 34'8" load: 2006# v: 124/102/52 range: 550. Pilot and one passenger in an open cockpit. $27,900; POP: 23 [C64K, C131H/134H, C138H/140H, NC9156, NC9703, NC9784, et al]. (2-116) approved three models in 1929 as 9p with increased load.
  Loening C-2H Catalina Air Lines [NC9773] (Gene Palmer coll)
  Loening C-2H [NC136H] (Frank Rezich coll)

C-2H 1928 (ATC 91, 2-187) = 525hp P&W Hornet; load: 2356# v: 124/102/55 range: 800. POP: 14 [C58K, C65K, C135H/137H, NC9773, et al], of which 2 to USN as XHL-1 [A8275/8276], and 1 converted from C-2C [NC9703]. (2-187) authorized 3 as 9p in 1930.
  Loening C-4C [X62K] (Aerofiles coll)

C-4C Cabin Amphibian 1928 (ATC 34, 2-298) = 5-7pO/CBAm; 425hp P&W Wasp; span: 45'8" length: 34'9" load: 2170# v: 120/97/54 range: 650. Identical to Wasp Amphibian except for a cabin in the hull. POP: 2 [X62K, 10588]. (2-298) for 525hp Wright Cyclone in 1930. Became Keystone-Loening K-85.
  Loening C-5 [X813W] (via Louis Emond)

C-5 19?? = 2pChwMAm; unknown pusher with pylon-mounted prop; no data found. POP: 1 [X813W] c/n 1.
C-6 Commuter 1929 = 4pCBAm; 300hp Wright J-6; span: 40'0" (?>36'0") length: 32'1" load: 1260# v: 116/90/50 range: 400. $16,800.
COA-1 SEE OA-1.
  Loening Duckling (National Archives)

Duckling c.1918 = 1pOBFb; 60hp Lawrance L-2 pylon-mounted in front of the cockpit. Twin tails. POP: 1.
Duckling 1929 = 2pCmwMAm; 110hp Warner Scarab. POP: 1 [X913W]. First product of Loening's new company.
FL-1 19?? - Fighter design study as XFL-1 cancelled, but USN s/n assigned [9346].
HL 1930 = USN aerial ambulance based on C-2H. POP: 2 as XHL-1 [A8275/8276].
K-84, -85 SEE Keystone-Loening K-84, -85
LS 1918 = USN. 2pOmwMF; 300hp Hisso; span: 34'10" length: 28'8" load: 2530#. POP: 1 as LS-1 [A5606].
M-1 - Redesignated M-8.
  Loening Kitten (National Archives)

M-2 Kitten 1918 = USN ultralight to operate from battleships or submarines. 1pOmwM wheels or twin floats; 55hp Lawrance L-3; span: (land) 22'0" (sea) 25'2" length: {land) 13'11" (sea) 17'4" load: (land) 224# (sea) 240# v: 100. POP: 3 [A442/444]; the first initially had British 32hp ABC Gnat.
  Loening M-3 [A5469] (National Archives)

M-3 1918 = USN development of M-2. 1pOmwMF; Lawrance; span: 25'2" length: 17'4" POP: 1 [A5469].
  Loening M-8

M-8, M-80, -81 1918 = Army/USN fighter and racer. 2pOmwM; 300hp Wright-Hisso H; span: 32'10" (?>35'0") length: 21'6" (?>24'4" ?>25'0") v: 144/x/58 ceiling: 18,600'. Ordered from Wright-Martin, subcontracted to Loening. Strut-braced shoulder wing, twin rudders. The first military monoplane in the US; originally designed with two rudders. Altitude record of 21,000 set in 1919 by Maj R W Schroeder. POP: 2 prototypes to Army [AS40121/40122], 1 to USN in 1919 [A5631]. Production contract for 5,000 planes cancelled by the Armistice, but design continued as PW-2.
M-8-0 1918 = span: 35'0" (?>32'9") length: 24'2" v: 143 ceiling: 22,000'. POP: 1. SEE NAF M-81.

M-80 1918 = span: 35'0" length: 25'0" v: 151. POP: 10 to USN [A5637/5646].

M-81, -81S 1919 = To USN. 1pOhwM and MAm. POP: 6 as M-81S seaplane with twin Elias amphibious floats on wheels [A5788/5793], plus 36 M-81s built by Naval Aircraft Factory.

Monoduck 1934 = 4pChwM; 300hp Wright J-6 mounted on a pylon; v: 135. POP: 1. Single-wing Commuter conversion. The last of the civilian Loenings.
O-10 SEE OA-1
O2L - Modernization of OL-8 design.
XO2L-1 1932 = 450hp P&W R-1340C; span: 37'0" length: 29'10" v: 132 ceiling: 16,200'. POP: 1 [A8525], modified with two vertical tail mini-fins.

  Loening XO2L-2 [A-8606] (IAATE via Clark Scott coll)

XO2L-2 1932 = Similar to XO2L-1, but with 550hp R-1340D and redesigned rudder; span: 37'0" length: 33'3" v: 142 ceiling: 15,600'. POP: 1 [A8606].

OA-1, O-10 - The Army's first amphibian. 2pOBAm; inverted 428hp Liberty V-1650-1; span: 45'0" length: 34'7" load: 1570# v: 119 range: 360 ceiling: 11,825'. USN version OL.
  Loening COA-1 [AS24-8] (Frank Rezich coll)
  Loening COA-1 [25-228] (USAAC via Edgar Allen coll)
  Loening COA-1 [25-228] (William T Larkins)

XCOA-1, COA-1 1924 = POP: 1 prototype XCOA-1 [AS23-1234], after which the "C" (for Corps) was dropped, and 9 production models followed [AS24-8, 25-226/234], of which 3 transferred to USN for 1925 Arctic Expedition.

  Loening XO-10 [26-212] (Roy Nagl coll)
  Loening XO-10 [26-212] (Frank Rezich coll)

XOA-1A, XO-10 1925 = Experimental OA-1A> with inverted 480hp Wright V-1460-1 and a single wheel retracting into the hull and skids under the wingtip floats. POP: 1 [26-212], redesignated as XO-10.

  Loening OA-1A (USAF Museum)

OA-1A 1926 = Redesigned tail group. POP: 15 [26-428/442].

OA-1B 1927 = Minor modifications. POP: 9 [27-318/326].

  Loening OA-1C at Crissy Field, San Francisco [25-81] (William T Larkins)
  Loening OA-1C [28-81] (USAF via Jay Miller coll)

OA-1C 1928 = New tail shape. POP:10 [28-73/82].

OA-2 1929 = Similar to OA-1C, but with inverted 480hp Wright V-1640; span: 44'11" length: 34'10" v: 112/90/56 (?>125/95/x) range: 585 ceiling: 10,725'. POP: 8 [29-274/281].
  Loening OL-1 [A-6879] (USN via W T Larkins coll)

OL-1 1925 = USN version of USAAS OA-1. 3pOBAm; 440hp Packard 1A-1500; span: 45'0" length: 35'4" v: 125 ceiling: 12,750'. POP: 2 [A6879/6880].
OL-2 1925 = 2pOBAm; 400hp inverted Liberty 12; span: 45'0" length: 33'10" v: 121 ceiling: 12,100'. POP: 5 [A6980/6983, A7030].
  Loening OL-3 (Roger Seybel coll via Andrew Seybel)

OL-3 1927 = 3pOBAm; 475hp Packard 2A-2500; span: 45'0" length: 35'1" v: 122 range: 420 ceiling: 13,000'. Used for first Alaskan Aerial Survey, 1928. POP: 4 [A7055/7058].
  Loening OL-4 [A-7325] (National Archives)

OL-4 1927 = 2pOBAm; 400hp Liberty 12; span: 45'0" length: 35'1" v: 117 ceiling: 11,000'. POP: 6 [A7059/7064].
  Loening OL-5 [A-7061] still wearing USN s/n on fin (USCG)

OL-5 1926 = USCG version of OL-6 with modified vertical tail; 435hp inverted Liberty V-1650-400; length: 35'4" v: 120/75/60 range: 425 ceiling: 12,750'. POP: 3 [1/3]. Along with 3 UO-4s, these were the first official USCG planes—prior aircraft had come from USN inventory.
OL-6 1927 = USN scout-observation. 3pOBAm; 475hp Packard 2A-1500. POP: 25 [A7324/7350]; 1 each modified to XOL-7 and -8.
OL-7 1928 = 475hp Packard 2A-1500. POP: 1 OL-6 modified as XOL-7 [A7335].
OL-8 - 3pOBAm; 450hp P&W R-1340B; span: 45'0" length: 34'9" v: 122 ceiling: 14,300'.
XOL-8 1928 = POP: 1 converted from OL-7 [A7344].

  Loening OL-8 (Navy League)
  Loening OL-8 One of two VJ-3S West Indies Survey planes (NAS Pensacola)

OL-8 1928 = POP: 20 [A7832/7851].

  Loening OL-8A (Harry Karlsten coll)
  Loening OL-8A Alaskan Survey on hoist

OL-8A 1929 = POP: 20 [A8069/8088].

  Loening OL-9 [9211] (USN)
  Loening OL-9 [8983] (William T Larkins)

OL-9 (Keystone) 1934 = 2pOBAm; 450hp P&W R-1340-C4; span: 45'0" length: 34'9" v: 122 range: 625 ceiling: 14,300'. $18,750; POP: 26 [A8733/8747, A8979/8985, 9208/9211].
  Loening PA-1 [AS64248] (Arthur Martin coll via WASM)
  Loening PA-1 Wind tunnel model (Beverly Howard)

PA-1 1922 = 1pOB; 350hp Wright R-1454; span: 28'0" length: 19'9" v: 124. "Pursuit, Air-cooled" designation used only this one time. POP: 1 [AS64248]; 1 other was cancelled.
  Loening PW-2 (Skyways)

PW-2 1920 = 1pOhwM; 300hp Wright-Hisso H; span: 39'9" length: 26'1" v: 136/122/x. Design based on M-8 POP: 3 prototypes [AS64139/64141]. Last one had original M-8 twin rudders converted to a single unit for testing.
  Loening PW-2A [AS64141] (McCook Field via Skyways)

PW-2A 1922 = Fuselage redesign, balanced rudder. POP: 4 [22-246/249]; orders for 6 more [22-250/255] were cancelled after problems with wing flutter and failure surfaced.

PW-2B 1922 = 350hp Packard 1A-1237, shorter span. POP: 1 [AS64389].

  Loening R-4 (NASA)

R-4 1922 = 1pOlwM racer; 600hp Packard 1-A; span: 26'11" length: 23'6" load: 600# v: 170; ff: 10/1/22. Gross wt: 3050#. POP: 2 [AS68559/68560]. The two Army racers were entered in the 1922 Pulitzer Trophy Race, but were reported as "almost total flops."
S-1 1923 = Army seaplane, the only such use of the "S" designation. 5pO-ChwMFb; 400hp Liberty 12 pusher; span: 43'0" length: 29'3" v: 125. Post-WW1 design based on 1922 Air Yacht. Pilot in open cockpit forward of motor, 4p cabin in hull. POP: 9 [23-01/08, 24-01].
  Loening XS2L-1 [A-8971] (USN & TKnL coll)
  Loening XS2L-1 [A-8971] (USN)

S2L 1931 = 2pOB; 400hp P&W R-985A; span: 34'6" length: 29'5" v: 137 ceiling: 16,900'. POP: 1 as XS2L-1 [A8971].
  Loening XSL-1 Wind tunnel tests [A-8696] (NASA)
  Loening XSL-1 [A-8696] (USN via W T Larkins coll)
  Loening XSL-1 with beaching gear (USN)

SL 1931 = Submarine-based scout. 1pOmwMFb; 110hp Warner Scarab; span: 31'0" length: 27'2" v: 100/88/x ceiling: 14,000'. Gross wt: 1500#. Could be folded up and stowed in an 8' space in 3 minutes. POP: 1 as XSL-1 [A8696], modified with 160hp Menasco B-6 as XSL-2 in 1932 (v: 116 ceiling: 15,200').>
  Loening-Milling

-Milling c.1912 = No specs or data found on this curio that was built for Loening in the Curtiss plant at San Diego's North Island but was not a Curtiss design. 60hp Curtiss S motor installed.