9M38M1 rolls to turn

[Northstar98]

Hi everyone,

Small issue, with the late January update, the 9M38M1 as fired by the Buk-M1 rolls to turn.

While I don't know if the 9M38M1 actually does, rolling to turn would be quite unusual given its conventional cruciform layout (a layout it shares with most missiles in-game) - it's the only missile with a cruciform layout in-game that does so - no other missile with the same configuration exhibits this behavior and the only missiles in-game that do, are missiles with prominent wings (such as cruise and certain gliding munitions like the JSOW) where rolling to turn is expected. 

The only SAMs IRL that I'm aware of that roll to turn are the British Thunderbird and Bloodhound SAMs, which don't feature in DCS.

9M38M1_roll2turn.trk

Edited May 30 by Northstar98

[Muchocracker]

It's not neccesarily unconventional it's just up to the design philosophy. There are many X config missiles that use bank-to-turn, particularly the ramjet powered types for intake air-flow reasons. Some designs also leverage BTT to maximize control authority in a single axis. 

Edited Saturday at 11:06 PM by Muchocracker

[Northstar98]

3 hours ago, Muchocracker said:

It's not neccesarily unconventional it's just up to the design philosophy. There are many X config missiles that use bank-to-turn, particularly the ramjet powered types for intake air-flow reasons. Some designs also leverage BTT to maximize control authority. 

This may be true, but the 9M38 remains the only missile of its configuration, propulsion and use case in DCS that exhibits this behaviour. It also doesn't feature any form of air-breathing propulsion.

I don't have any specific evidence to hand one way or the other - searches are drawing a blank. But at the moment, it is the odd one out. I guess I'll have to wait for it to be properly investigated though it's not like BTT is adversely affecting performance.

Edited Saturday at 05:24 PM by Northstar98