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RCAF_Wingnut

Here are the formulas that I use to calculate the distances from destination to begin descent and the rate at which that descent should be accomplished.

Distance for Descent

(((Alt - (Field Alt + Approach Alt)) divide by 1000) * 3) + 20 miles = Distance from destination to begin descent

ie. (((20,000 - (2500 + 10)) / 1000) * 3) +20 = 72.47 nm from destination.

Descent Rate

Ground Speed * 3 = Descent Rate @ Foot Per Minute

ie. 430 * 3 = 1,290 fpm Descent rate

I always add the extra 20+ miles in the distance to give me plenty of time to get flaps, gear, and lights set for landing. That can be altered by your own personal choices. This will give you a 3% angle on the descent, which is typical of a commercial passenger plane. If you are in a Military fighter, the descent rate can be higher or lower depending on the crew comfort requirements. These formulas are also what real pilots use.

Uhu_Fledermaus

Thankx Wing!

fled

JG300_Hunt

Thanks Wingnut, this will come in real handy. I usually give a good bit of room with that Sabre though, can be a bugger to slow on descent and maintain a good speed! Bit of a headache juggling speed brake on and off.

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