With a bomber just get the target in the crosshairs and drop. Speed and altitude mean nothing with the bomb sight.
With fighters there are 2 tactics I use.
Dive bombing, get directly above the target at about 7000 feet and dive vertically on the target. when the targets in the cross hairs drop your bombs and pull out.
Low level bombing. I usually use this method in a mosquito at full throttle.
Come in on the target with bomb doors open at max speed and altitude of between 200 and 500 feet.
When you come up to the target wait intill it goes out of your view under the panel and count to 3. when you reach 3 drop your bombs and pull up sharpish. It helps to have big bombs for this method.
I rarely fail to do damage to a sitting target. In fact my bombing accuracy is 100% in the campaign.
Also note that the weight of the bomb also defines the hight you need to be to avoid damage from the explosion. If the bomb is 250lb then you need to be at 250feet at least to avoid the blast. a 500lb bomb requires and altitude of 500 feet and a 1000lb bomb requires you to be 1000 feet away to avoid damage.
Follow these rules and you shall cause some damage at least.
