Level bombing sistematically drop short on Wellington and Fiat BR 20M

[Samuele]

Hi,

i'm starting to do some level bombing in this fantastic sim, but i've some issue on the accuracy.

The problem in short terms is that i sistematically drop short, so the bombs falls before the target of approxmately 100-200m.

I'm using primarly wellington Mk 1A anc C (manual bombsight) and Fiat BR 20.

 

I know the basic rules, as explained both in the flashcards and other guides (chucks one for example):

-Around 10 km from the target i use the autopilot mode 22, to get a steady level flight and direction.

-I set the target altitude according to the altimeter reading minus the target height.

-I set the aircaft velocity according to the estimated True Air Speed, adding 3% each 500m of altitude starting from the indicated air speed. For example if i'm flying at 2000m with IAS 300 km/h, i add 12% to the IAS to get 336 km/h, rounded to 340 into the gunsight.

-i enter the first person view of the bombsight (shift + F1) and drop when target is under the gunsight

 

I've tried to use the Indicated Air Speed instead of the True air speed and the situation is a little better but still short.

 

I've found also also in this thread:

a comment to use IAS for wellington for better accuracy, instead of TAS.

 

The problem can be tested using this sample mission "Bombsight Practice":

https://theairtacticalassaultgroup.com/forum/Downloads.php?do=download&downloadid=193

 

Am i missing something?

 

Thanks 

 

Samuele

[Buzzsaw]

Hello Samuele

 

There is a group on the ATAG forum who specialize in flying bombers and bombing.

 

I would recommend you post there with your experiences... I am sure you will receive a reply.

 

Or you could do a search on that forum.

 

There are guides out there too.

[Pinguim]

just tested here, around 9k ft, IAS is precise for the early wellingtons (tested welly IA with 500lb bomb, started mod 22 at 3km). i might test further soon.

 

some of the bombsights are not precise in all alts. i don't know if it's a bug or it's intended for all planes.

 

i believe that the late wellington and he-111 bombsights are just plain bugged though. for the late welly it's possible to correct the bug by setting a head wind that's the difference between IAS and TAS (got this info from atag's bomber boys). on the other hand, ju88 is perfect.

 

another problem is, i think, the br.20 sight should go higher than 2700m.

 

 

Edited July 11, 2024 by Pinguim

[BENKOE]

The HE-111 bombsight is an inherited 1c:Maddox phantasy piece. 😟

 

3 hours ago, Pinguim said:

... i believe that the late wellington and he-111 bombsights are just plain bugged though. ...

 

 

 

Edit:

I remember, somebody provided a HE-111 bombsight test mission:

                          //forum.il2sturmovik.com/topic/70658-german-bombsights-off

Obviously it has been deleted. Unfortunately I deleted it too.

 

Edited July 11, 2024 by BENKOE

[Buzzsaw]

The thread on the ATAG forums is here:

 

https://theairtacticalassaultgroup.com/forum/showthread.php?t=38039

 

Those who are interested in joining the 'Wimpy Squad' and getting access to posts relating to this subject and optimizing bombing accuracy post in the thread or PM ATAG_Snapper the Admin.