Author Topic: Lancaster Divebombers  (Read 2189 times)

Offline SmokinLoon

  • Platinum Member
  • ******
  • Posts: 6168
Re: Lancaster Divebombers
« Reply #30 on: March 15, 2014, 07:19:43 PM »
All I see in the MA are Lancasters 'diving' at 25° and everybody scream "Stuka"  :rolleyes:

I have yet to witness sucessfull and efficient 70° formation dive bombing runs in a heavy bomber formation in the MA. Which is odd as I'm told they are occuring all the time

I think most are complaining about the gross abuse of a bomb truck.  The Lancaster carpet bombing a gv spawn point, or other such rally point, at 800-150 ft, using 1000 lb bombs does get to be a bit much. I've not ever seen a true "dive bombing" Lancaster bomber. 

I have however seen a Ju88 "dive bombing" at 45°+ angles.   ;)
Proud grandson of the late Lt. Col. Darrell M. "Bud" Gray, USAF (ret.), B24D pilot, 5th BG/72nd BS. 28 combat missions within the "slot", PTO.

Offline FLOOB

  • Gold Member
  • *****
  • Posts: 3058
Re: Lancaster Divebombers
« Reply #31 on: March 15, 2014, 07:44:51 PM »
I've not ever seen a true "dive bombing" Lancaster bomber. 

I have seen it thats what prompted me to post this. I dont have a problem with the level bombing of spawn points. But the dive bomb just makes aces high look stupid.
“Montana seems to me to be what a small boy would think Texas is like from hearing Texans” - John Steinbeck

Offline FLOOB

  • Gold Member
  • *****
  • Posts: 3058
Re: Lancaster Divebombers
« Reply #32 on: March 15, 2014, 07:48:10 PM »
All I see in the MA are Lancasters 'diving' at 25° and everybody scream "Stuka"  :rolleyes:

I have yet to witness sucessfull and efficient 70° formation dive bombing runs in a heavy bomber formation in the MA. Which is odd as I'm told they are occuring all the time
As i said the guy dive bombing lost his drones when he dove, i dont know why he bothered bringing them.
“Montana seems to me to be what a small boy would think Texas is like from hearing Texans” - John Steinbeck

Offline bustr

  • Plutonium Member
  • *******
  • Posts: 12436
Re: Lancaster Divebombers
« Reply #33 on: March 15, 2014, 07:58:41 PM »
You need to find the vertical dive test data from Avro for the maximum speed achieved by the Lancaster without shedding the wings.

Those tests usually happened from 25-30k to allow time to pull out. I will bet HTC has a copy. Which means offline you can climb to 25k, point strait down and I think it's between 400 and 450 that you can still pull out by. Keep track of the max G during the pullout. That will be your limit at lower alts dive bombing. Same test can be performed with the other 4 engine bombers. But, then most of the dive bombing I've witnessed hasn't been more than 60 degrees for short dives.

I have faith in Hitech that he includes the maximum G load limits of his airframes in the game. I suspect no one has reached them often with airplanes constructed to carry massive amounts of weight, so are constructed accordingly. We see whines all the time when fighter jockeys find the maximum G load for their airframe.
bustr - POTW 1st Wing


This is like the old joke that voters are harsher to their beer brewer if he has an outage, than their politicians after raising their taxes. Death and taxes are certain but, fun and sex is only now.

Offline Oldman731

  • Plutonium Member
  • *******
  • Posts: 9506
Re: Lancaster Divebombers
« Reply #34 on: March 15, 2014, 11:42:35 PM »
I know the B-17 and B-24 have limits on pitch angles for bomb release -- has to do with the bombs clearing structure as they leave the bomb bay.  Model those restrictions….if exceeding the limit pitch angles then bombs don't drop.


Colmbo, would you be able to find these numbers?

- oldman

Offline colmbo

  • Gold Member
  • *****
  • Posts: 2246
      • Photos
Re: Lancaster Divebombers
« Reply #35 on: March 16, 2014, 12:39:10 AM »

Colmbo, would you be able to find these numbers?

- oldman

I've been trying to remember where I that info.   They might have been on a placard in the bomb bay of the aircraft…in which case someone else is going to have to check on them since I'm a few thousand miles from the airplanes.
Columbo

"When once you have tasted flight, you will forever walk the earth with your eyes turned skyward, for there you have been, and there you will always long to return."

Fate whispers to the warrior "You cannot withstand the storm" and the warrior whispers back "I AM THE STORM"

Offline colmbo

  • Gold Member
  • *****
  • Posts: 2246
      • Photos
Re: Lancaster Divebombers
« Reply #36 on: March 16, 2014, 12:57:20 AM »
Found the info for the B-17, it's in the airplane operations manual. 

 The angle for glide or climb is dependent upon which bomb is being dropped AND from which bomb bay station it is dropped from.  Some limits are very low -- just 2 or 3 degrees while others are as high as 50 degrees.  There is a note that states "Angles shown allow 10 degrees for safety. However, under perfectly smooth flying conditions, if in the airplane commander's opinion conditions warrant it, these give angles may be exceeded by not more than 5 degrees.

I will try and scan the page and post an image of it in the morning.
Columbo

"When once you have tasted flight, you will forever walk the earth with your eyes turned skyward, for there you have been, and there you will always long to return."

Fate whispers to the warrior "You cannot withstand the storm" and the warrior whispers back "I AM THE STORM"

Offline lyric1

  • Skinner Team
  • Plutonium Member
  • *******
  • Posts: 10687

Offline Karnak

  • Radioactive Member
  • *******
  • Posts: 23048
Re: Lancaster Divebombers
« Reply #38 on: March 16, 2014, 10:20:47 AM »
Found the info for the B-17, it's in the airplane operations manual. 

 The angle for glide or climb is dependent upon which bomb is being dropped AND from which bomb bay station it is dropped from.  Some limits are very low -- just 2 or 3 degrees while others are as high as 50 degrees.  There is a note that states "Angles shown allow 10 degrees for safety. However, under perfectly smooth flying conditions, if in the airplane commander's opinion conditions warrant it, these give angles may be exceeded by not more than 5 degrees.

I will try and scan the page and post an image of it in the morning.
Lancaster's bay is long and shallow.  That would larely eliminate the problems the short and deep bay on the B-17 caused for the bombs mounted higher up.
Petals floating by,
      Drift through my woman's hand,
             As she remembers me-

Offline colmbo

  • Gold Member
  • *****
  • Posts: 2246
      • Photos
Re: Lancaster Divebombers
« Reply #39 on: March 16, 2014, 10:30:24 AM »
Very true Karnak.


Here's the B-17 angles and bomb bay stations scans:




Columbo

"When once you have tasted flight, you will forever walk the earth with your eyes turned skyward, for there you have been, and there you will always long to return."

Fate whispers to the warrior "You cannot withstand the storm" and the warrior whispers back "I AM THE STORM"

Offline lyric1

  • Skinner Team
  • Plutonium Member
  • *******
  • Posts: 10687
Re: Lancaster Divebombers
« Reply #40 on: March 16, 2014, 04:40:38 PM »
Lancaster's bay is long and shallow.  That would larely eliminate the problems the short and deep bay on the B-17 caused for the bombs mounted higher up.

Page 15 of Scribd link. Page 29 of actual book.

http://www.scribd.com/doc/42679113/1945-Pilot-s-and-Flight-Engineer-s-Notes-Lancaster-Mark-I-Mark-VII-Mark-III-Mark-X

"Bomb Clearances angles."

Dive 30 deg.
Climb 20 deg.
Bank 10 deg..........(With S.B.C.25 deg.).

Offline kvuo75

  • Gold Member
  • *****
  • Posts: 3003
Re: Lancaster Divebombers
« Reply #41 on: March 16, 2014, 05:57:12 PM »
and also remember most people in the game cannot judge angles correctly. 15-20 degrees = 45-60 to them.. shallow glide = dive bomber
kvuo75

Kill the manned ack.

Offline Tinkles

  • Silver Member
  • ****
  • Posts: 1501
Re: Lancaster Divebombers
« Reply #42 on: March 16, 2014, 09:39:55 PM »
and also remember most people in the game cannot judge angles correctly. 15-20 degrees = 45-60 to them.. shallow glide = dive bomber

Sadly this is true.

I have though seen a lanc dive at 30+ degrees, he however was going too fast and yanked the stick too hard.. ripped his wings off, and collided with my wirble  :lol
If we have something to show we will & do post shots, if we have nothing new to show we don't.
HiTech
Adapt , Improvise, Overcome. ~ HiTech
Be a man and shoot me in the back ~ Morfiend

Offline kvuo75

  • Gold Member
  • *****
  • Posts: 3003
Re: Lancaster Divebombers
« Reply #43 on: March 17, 2014, 04:08:27 AM »
ooopz
« Last Edit: March 17, 2014, 04:11:08 AM by kvuo75 »
kvuo75

Kill the manned ack.

Offline RedBull1

  • Gold Member
  • *****
  • Posts: 2769
Re: Lancaster Divebombers
« Reply #44 on: March 17, 2014, 05:51:37 AM »
Can we please get the Dolby thread hijack back underway?


Thank you.
"There is absolutely no point discussing anything on the BBS, it's mostly populated by people who are right about everything, no one listens and everyone is just talking. People will argue over the shape of an egg." -Anonymous