Author Topic: B-29A - Loading and Performance for a typical mission  (Read 7849 times)

Offline columbus

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Re: B-29A - Loading and Performance for a typical mission
« Reply #15 on: November 03, 2010, 08:08:47 PM »
Wonder if they'll model in the engine problems?

be funny if they did it with the 262.. 200+ perks and then boom!

Offline THRASH99

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Re: B-29A - Loading and Performance for a typical mission
« Reply #16 on: November 03, 2010, 08:40:39 PM »
be funny if they did it with the 262.. 200+ perks and then boom!
The 163 had that problem as well. Since they mixed in chemicals for the rocket fuel, it would sometimes blow up on takeoff.

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Offline 5PointOh

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Re: B-29A - Loading and Performance for a typical mission
« Reply #17 on: November 03, 2010, 08:46:36 PM »
I'm thinking that if they modeled engineering/manufacturing flaws that some of us may not ever get off the ground. 
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Offline Larry

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Re: B-29A - Loading and Performance for a typical mission
« Reply #18 on: November 03, 2010, 08:48:38 PM »
I think they should force it to have 100% fuel every time it takes off (like every heavy and medium bomber should) in-game to prevent it from proverbially flying around on fumes (like a bat outta hell, unlike it ever did in combat).


Why? They didn't load bombers with 100% fuel during the war when it wasn't necessary.
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Offline 1Boner

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Re: B-29A - Loading and Performance for a typical mission
« Reply #19 on: November 03, 2010, 09:14:05 PM »
60 minutes to make it to 20k? yeah thats gonna happen!

Perk it!!  Its da debil!! :devil
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Offline StokesAk

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Re: B-29A - Loading and Performance for a typical mission
« Reply #20 on: November 03, 2010, 10:08:18 PM »
some of us may not ever get off the ground. 

some of us barely do!
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Offline kvuo75

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Re: B-29A - Loading and Performance for a typical mission
« Reply #21 on: November 03, 2010, 10:23:39 PM »
where do they come up with the combat weight? it has to be after bombs out, plus half the fuel burned?

(just trying to figure out how they come from 140,000 to 96,900 on "max bombs mission")


anyway, notice the high alt combat speed is 399mph :)


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Offline Guppy35

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Re: B-29A - Loading and Performance for a typical mission
« Reply #22 on: November 04, 2010, 01:32:06 AM »

Why? They didn't load bombers with 100% fuel during the war when it wasn't necessary.

I don't know that it ever applied to the 29.  If we really want to do it right, we'd make the first 29 drivers carry fuel over the Hump to their bases before they can take off for a mission :)
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Offline Lusche

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Re: B-29A - Loading and Performance for a typical mission
« Reply #23 on: November 04, 2010, 01:32:55 AM »
If we really want to do it right, we'd make the first 29 drivers carry fuel over the Hump to their bases before they can take off for a mission :)

Somehow I like that idea  :D
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Offline HPriller

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Re: B-29A - Loading and Performance for a typical mission
« Reply #24 on: November 04, 2010, 05:53:13 AM »
what's interesting about that chart is the Takeoff run to clear a 50' obstacle distance, 7800'.  Do we even have a runway long enough for that in the current game?  Most runway seem to terminate with 100-150' tall trees starting abrubtly thereafter.

Offline RTHolmes

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Re: B-29A - Loading and Performance for a typical mission
« Reply #25 on: November 04, 2010, 06:31:24 AM »
60 minutes to make it to 20k? yeah thats gonna happen!

the chart shows RL figures, not AH figures. the 500fpm climbrate and times to 10k and 20k are using Normal Power settings.

Assuming its modelled like the other US heavy bombers in AH it will be allowed to fly around permanently at Takeoff Power (ie. WEP).

the chart shows 1,555-2,140fpm for Max Climb using Max Power depending on loadout. Given it will be flown in AH at 25% fuel and firewalled to Takeoff Power, I'd expect typical AH climbrates to be around 2,000fpm, so figure 15-20min to hit 20k.
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Offline RTHolmes

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Re: B-29A - Loading and Performance for a typical mission
« Reply #26 on: November 04, 2010, 07:13:51 AM »
B-29 loadouts from the manual (AN 01-20EJ-1):

80x 100lb
56x 300lb
40x 500lb
12x 1,000lb
12x 1,600lb
8x 2,000lb
4x 4,000lb
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Offline Yossarian

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Re: B-29A - Loading and Performance for a typical mission
« Reply #27 on: November 04, 2010, 11:26:35 AM »
B-29 loadouts from the manual (AN 01-20EJ-1):

80x 100lb
56x 300lb
40x 500lb
12x 1,000lb
12x 1,600lb
8x 2,000lb
4x 4,000lb


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Offline columbus

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Re: B-29A - Loading and Performance for a typical mission
« Reply #28 on: November 04, 2010, 12:50:23 PM »
only thing i see with that load out you devistate a V base within mins , so i forsee someway of making Vbases alot more harder to take and even airbases. cause i know people in here probably have 1000000 bomber points saved up.  unless AH resets the bomber points to make it fair.  i mean a raid of 2-3 people in 29's can take out a vase with ease.

Offline MiloMorai

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Re: B-29A - Loading and Performance for a typical mission
« Reply #29 on: November 04, 2010, 12:59:52 PM »
The 163 had that problem as well. Since they mixed in chemicals for the rocket fuel, it would sometimes blow up on takeoff.

Got proof this happened.

Suggested reading, http://homepage.ntlworld.com/andrew.walker6/komet/flight/flight1.htm

1. Rocket engines would explode without warning.

RO: engines were reliable and relatively safe and were adjusted so as to shut down in the event of an imbalance in fuel flow. If there was a problem in engine performance, it related to shutdowns, not explosions. The only instances of engines blowing were in early testing of prototypes or when they had been damaged in battle or by accident.

  2. Leaking fuel could turn pilots to jelly, particularly if the plane flipped over.

RO: pilots, me included, survived overturned Komets, and an overturned ship would not necessarily leak fuel into the cockpit. When fuel contacted organic material, including skin, it ignited after only a few seconds. Our protective nylon suits would not ignite but were porous, and fuel could sop through to the skin.

3. Forward-mounted flaps were necessary to counter a negative pitching moment from the trailing-edge flaps.

RO: the TE flaps were trim flaps only, and the deployment of the forward-mounted underwing flaps did not cause a pitch change.

4. The Komet’s dive to speeds resulting in compressibility were often fatal.

RO: no fatalities resulted from this, to my knowledge. The Komets in such dives recovered after reaching a lower altitude that neutralized the compressibility problems.

5. As many as 15 percent of Komets broke up while pulling out of high-speed dives where compressibility had became a factor.

RO: no such fatalities to my knowledge.

6. Stall characteristics were abrupt and severe and taxed the skills of even experienced fighter pilots.

RO: the plane was equipped with leading-edge slots that eliminated stalls and caused it to mush forward in a mode that was immediately recoverable. The plane would not spin and was intentionally designed to be docile for low-time pilots.

7. Only experienced pilots could adequately handle the airplane at slow speeds.

RO: the plane was docile and friendly at slow speeds, and it had to be for low-time pilots to successfully land it dead-stick.

8. The Komet was not a successful fighter but future development would have made it a formidable interceptor.

RO: The 263—the next incarnation—had retractable landing gear, a pressurized cabin and considerably more fuel, but it never got beyond the early prototype stage.

I agree the 163B was not a successful fighter. Several hundred 163Bs were built,
but only 91 were operational as of December 31, 1944, and only 16 kills were attributed to 163s during the War. Note, however, that while under power or in a fast glide, the 163 could fly circles around any other fighter of its time.

In fact, the true contribution of the Komet was to high-speed flight as evidenced by the success of the delta-wing Concorde and delta-wing space shuttle. These Lippisch planform concepts live on today.