Flying M24 with both doors off?

Inquiring Mind

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Any safety related reason not to fly M-24 with both doors off?
Magni responded to my question suggesting to take off only one door, passenger side, without explanation why.
 

Illini85

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Not an owner yet, but I think the issue with both doors off is too much wind coming into the cabin from around the pillars. I wish they would instead have a "summer" door that was cut out or vented more. To cut out say the lower 30% of the door might require a frame. But I bet somebody could 3d print something suitable relatively easily
 

WaspAir

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I don't know about the M24 in particular, but for my Bell 47, I really limit my speed with both doors off. Above about 65 knots, there's an annoying buffetting that you don't get with only one door removed or with both on. It's not a safety issue in itself if everything in the cockpit it secured but loose items could get sucked out and into the tail rotor (perhaps the prop in your case). The R22 seemed to suffer much less from speed with doors off, so it wasn't an issue. My old Sikorsky S52 had sliding cabin side doors that could be opened as much as desired.

The A&S18A has a speed limit with its one door removed.

Removing the passenger door can be helpful for photography.
 
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Inquiring Mind

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It's not a safety issue in itself if everything in the cockpit it secured but loose items could get sucked out and into the tail rotor (perhaps the prop in your case).
I see now, thanks. But why passenger door only?
 

WaspAir

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Can't offer much insight on that!
 

Philbennett

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I see now, thanks. But why passenger door only?
Possibly nothing more than security - I have no insight but I suspect (and if I were a corporate giving advice it would be on my mind) they tell you remove a door... You then remove the P1 door and fall out or something distracts and you have issues where does the buck stop...

Doors and M24 have an unhappy story at the introduction of the model in the UK. https://assets.publishing.service.gov.uk/media/5422f93d40f0b613420006a5/Magni_gyroplane_M24C_Orion__G-CGTI_10-11.pdf
 

Inquiring Mind

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You then remove the P1 door and fall out or something distracts and you have issues where does the buck stop...
Thanks, Phil. That was my guess too. So, it is not like some aerodynamic issue arise because of pilot door is off, but just for pilot protection, got it.
 

Philbennett

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Yes I have an M24 at my airfield that I fly but in the Uk we can’t remove the doors at all. I’ve flown a Cavalon without both doors and it’s very nice in the summer but with +70mph it gets very blowy in the cabin.
 

Inquiring Mind

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Yes I have an M24 at my airfield that I fly but in the Uk we can’t remove the doors at all. I’ve flown a Cavalon without both doors and it’s very nice in the summer but with +70mph it gets very blowy in the cabin.
Yeah, both doors open would make the cabin windy, I was thinking of flying with just one door off - pilot's door and leave the passenger door on and closed.

Last year I flew some hours on M-24 with passenger door off and it was not uncomfortable at all.
 
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