Author Topic: Our SBD's Bombload...  (Read 632 times)

Offline Warspawn

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Our SBD's Bombload...
« on: November 27, 2006, 01:51:19 AM »
Quick question...

Was watching Dogfights and noticed their ordinance listed for the Dauntless was way over what we could load, by half a ton.

So I went here:

http://www.boeing.com/history/mdc/dauntless.htm


to the manufacturer's site, and they have it listed as higher than ours as well (2,250 lb bomb load, ours is max 1200).

Which is correct?




*edit* ah, found it.  Ours is the early model, the BT prototypes:  In the spring of 1938, a Northrop dive-bomber designated the BT-1 entered service with the US Navy. Its influence was felt over at the Douglas Company, where a new naval dive-bomber was designed and produced based on the Northrop design. Initially designated the XBT-2, the new design was later called the SBD when Northrop became a division of the Douglas Company. The XBT-2 was powered by a 1,000-hp Wright radial engine with a top speed of 265 mph, a cruising speed of 155 mph, a service ceiling of 30,600 feet and a maximum range of 1,485 miles (scout) and 604 miles (bomber). Armament consisted of 2-fixed forward firing .30 cal machine guns and defensive armament was 1 .30 cal machine gun. Bomb load was 1,200 pounds.
« Last Edit: November 27, 2006, 01:53:20 AM by Warspawn »
Purple haze all in my brain
Lately things just don't seem the same
Actin' funny, but I don't know why

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Offline Krusty

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Our SBD's Bombload...
« Reply #1 on: November 27, 2006, 12:04:31 PM »
No, we have the SBD-5, not the BT-2. We have 2x 50cals fixed and firing forward and 2x30cals in the tail gunner position. (or are they 50cal? I think 30). I always thought it was a small bomb load, but anything more and the plane would never climb. It already does less than 1000fpm under all conditions as-is.

Offline Warspawn

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Our SBD's Bombload...
« Reply #2 on: November 27, 2006, 04:35:12 PM »
I think our SBD-5 is actually a -1 or -2.  Everything I can find indicates that, except for the .50's in the cowling instead of the early models' .30 cals.

The -3 added .50's.

If we have -5's, then I have no idea what we could do to correct the ordinance deficiency (1000 lbs less than the SBD-5's historical bombload).  I see reports that a 1,600 lb AP bomb would occasionally be loaded centerline with 2 x 325 lb GP bombs loaded on wings.  Would at least let it get picked occasionaly over the TBM's that are the preferred ride in almost every situation where you need CV ordinance delivered by dedicated light bombers if we had something close to that.

Of course...real-life situations where you're launching from a deck of a carrier often meant flying with less ordinance than what the manufacturer 'listed' as the aircraft's max payload.  Perhaps that's what we're seeing here...


Douglas Aircraft Company, El Segundo, California, and Tulsa, Oklahoma.

Type: Carrier-based scout, dive-bomber.

Accommodation: Pilot and observer rear gunner.

Power plant: One 1,200 hp Wright R-1820-60.

Dimensions: Span, 41 ft 6~ in length, 33 ft O~ in; height, 12 ft II in; wing area, 325 sq ft.

Weights: Empty, 6,675 Ib; gross, 10,855 lb.

Performance: Max speed, 245 mph at 15,800 ft; cruising speed, 144 mph; initial climb, 1,190 ft mm; service ceiling, 24,300 ft; range, 1,100 St miles.

Armament: Two fixed forward-firing 050-in guns; two flexible dorsal 030-in guns. Up to 1,600 lb external under fuselage and two 325 lb under wings.
_____________________________ ___________


I wonder if we could either increase the payload, or remove the .50's for .30's instead and re-designate it SBD-1 instead of -5 for accuracy.

« Last Edit: November 27, 2006, 04:48:50 PM by Warspawn »
Purple haze all in my brain
Lately things just don't seem the same
Actin' funny, but I don't know why

'Scuse me while I kiss the sky                 
                                                 --J. Hendrix

Offline Krusty

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Our SBD's Bombload...
« Reply #3 on: November 27, 2006, 04:46:15 PM »
I think the data is mis-worded in there. It can only ever carry 1 bomb centerline, because it only has 1 trapeze to swing it out past the prop arc. The TBM had 2 trapezes installed in the bomb bay, but the SBD only had 1 external. So maybe the size of the bomb changed, but only 1 at a time could be carried on that mount. Just an addendum to what you posted.

It's possible we have a different version. Other planes have been noted to be combinations of data or versions (like the old F4u-1, and the 190a5) to get the proper end result version. I don't know for sure, though.

Offline Warspawn

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Our SBD's Bombload...
« Reply #4 on: November 27, 2006, 04:57:42 PM »
AH!

Found reports where the Navy never launched their SBD's with more than 1000 lbs of ordinance from CV's due to safety issues.  The aircraft often launched with much more, but only from land-based operations.

It appears that, at least in carrier ops, that the VS and VB squadrons (SBD-2/3) carried only 3 possible loads of bombs.

Single 500lb
Single 500lb and 2 100lb
single 1,000lb


I don't know if those were increased when these squadrons received the SBD-5's or if they continued with that loadout for convenience purposes.
« Last Edit: November 27, 2006, 05:04:07 PM by Warspawn »
Purple haze all in my brain
Lately things just don't seem the same
Actin' funny, but I don't know why

'Scuse me while I kiss the sky                 
                                                 --J. Hendrix

Offline Krusty

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Our SBD's Bombload...
« Reply #5 on: November 27, 2006, 05:04:27 PM »
Interesting... But they WERE used quite frequently from land strips, as well, right?

Offline Warspawn

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Our SBD's Bombload...
« Reply #6 on: November 27, 2006, 05:11:04 PM »
Correct.  The load-outs I found for Guadalcanal were the same as the CV load out because...CV's were shipping the ordinance there, and the aircraft would actually sometimes fly to CV's in order to re-arm.

Found some load-out info from the Intrepid that indicates, at least on paper, that the aircraft was loaded heavier than what we see modeled in-game:

Naval Aviation Journal:

http://journals.aol.com/cv11njrep/USSIntrepidCVCVACVS-11andNavalAv/entries/2004/11/01/the-ac-carrier-uss-intrepid-aircraftboats/759

Douglas SBD-5 'Dauntless' : Type: 2 Seat Dive Bomber; Entered Service; 1941 (carried by Intrepid 1943-44); Wingspan: 41' 6 3/8"; Wing Area: 326 sqft; Length: 32' 6"; Weight: 6675 lbs, 9530 lbs (normal load); Speed: 229 mph at sea level, 253 mph at 16,600'; Engine: 1200 hp, 9 cyl, Wright R1820-60; Fuel Cap: 260 gal (plus 2x58 gal drop tanks); Range: 1300 miles at 144 mph; Ceiling: 26,500'; Armament: 2-.50 cal MG(360 rpg), 2-.30 cal MG (2000 rpg); 1x1600 lbs, 1000 lbs or 500 obs bomb/or 2x325 lbs bombs or 1 to 3 depth charges.
Purple haze all in my brain
Lately things just don't seem the same
Actin' funny, but I don't know why

'Scuse me while I kiss the sky                 
                                                 --J. Hendrix

Offline Stoney74

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Our SBD's Bombload...
« Reply #7 on: November 29, 2006, 01:30:03 AM »
Quote
Originally posted by Warspawn
AH!

Found reports where the Navy never launched their SBD's with more than 1000 lbs of ordinance from CV's due to safety issues.  The aircraft often launched with much more, but only from land-based operations.




Wings of Gold provides an anecdote from an SBD pilot describing taking off for a mission with a single 1000lb'er and 2X 100lb'ers.  I can look it up to see what battle it was for...