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Good catch! I went back and looked at the TCDS for both aircraft and engine and couldn't find anything about he -G5 being used on the DC-3 however, several internet sources say that the R-1820-G5 was used on the first DC-3s, of course I can't find any hard reference for that.The FAA type certificate TC154 lists a take off power of 1000 hp at 2200 rpm at 41.0" mp for the Wright R-1820-G5.
No type certificate for the DC-3 has the R-1820-G5 as an engine, but I have no doubt that at some stage a DC-3 flew with it installed sometime!
I'm beginning to believe the sameI doubt that the G5 was used in the DC-3.
Yep!The Wright data sheets I am using may have some mis-prints/typos.
100%Most G5 engines are listed as not having reduction gears and why anybody would put an R-1820 with a small diameter fast turning prop on a DC-3 is beyond me.
Saw the same - see my post aboveApparently the number after the Letter is supposed to designate the gear ratio of the supercharger.
The G5 used a two speed supercharger while the some of the other versions use single speed superchargers.
The fuel required for the G series includes 80 (one model) 87, 92 and a few with 100. there is one lonely entry listed at 100/130 but that is for the engine used in the Brewster/Naval Aircraft Factory SNA-1/SBN-1.
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Since the last was delivered in March of 1942 I suppose some paperwork somewhere may have listed 100/130 fuel but it didn't change the power rating
BTW I have not found any early DC-3s that were listed as having (or leaving the factory) with G5 engines but I don't have a complete list. The G5 was listed as a option.
Some of the earliest DST (Douglas Sleeper Transport) used G2 engines. There were 21 of the DSTs built but they were built with G2s, G102s and G-202s.
The engine was an export version of the R-1820 used in the F2A1. They also changed the radio and the gun sight.I believe the Finns got an F2A-1 variant (Brewster model B-239E, the F2A-1 was a model B-239) It didn't have armor, self sealing tanks, an arrest hook, carried 2 extra guns and had a more powerful engine.
Buffnut,One other tidbit...the F2A-1 and Model 239 had the least powerful engine of any variants, just 950hp IIRC.
Could be referencing the B-18 Bolo bomber version of the DC3.I have seen reference to the R-1820-G5 engine used on some of the early DC-3 that were taken up from the civil airlines for military service. This G5 variant was the Model 286T which had a reduction gearbox fitted. Reduction ratio was 16:11. The military designation was R-1820-71 (I think).
Yes but which dash number or letter? From sources it's being shown the engines on the 239's delivered to the Finns put out at least 10 HP moreThe engine was an export version of the R-1820 used in the F2A1. They also changed the radio and the gun sight.
I've seen it too but the TCDS doesn't show it as an original installation, that's not to say some were installed with a Field ApprovalI have seen reference to the R-1820-G5 engine used on some of the early DC-3 that were taken up from the civil airlines for military service. This G5 variant was the Model 286T which had a reduction gearbox fitted. Reduction ratio was 16:11. The military designation was R-1820-71 (I think).
From what I remember, the B239 got the G5 engine. The F2A1 got the -34.Yes but which dash number or letter? From sources it's being shown the engines on the 239's delivered to the Finns put out at least 10 HP more
Buffnut,
Do you know if the engine used in trials for the XF2A was different from the one used in the F2A-1?
I remember seeing that issue but at the same time, as SR pointed out earlier in this thread, there's been many mis-prints and errors with regards to to the 1820 and model designations so information on this is all over the place!If anyone has the November 1996 issue of Aviation History, it will literally answer all the questions you guys are asking.