Ventilation
- Thread starter lwford
- Start date
Jonathan Baron
New member
Hey Lynn!
As I look at the ice fog out my window, notions of better ventillation seem as remote as flying in this stuff. For weeks I've dared not try to finally bring my Bellanca home from Oregon, but that's terribly beside the point
As I understand it, the mod involves re-routing the flow of incoming air (and there is a LOT of it due to those twin fresh air ports near the wing roots) from those floor mounted vents, to vents on the panel. After all, we want the air to be blasting on our faces rather than our feet in the summer. This also involves installing pricey eyeball air controls as you see on airliners. Somebody stuck one of these on a vent in the rear seat on my crate...on the floor of course. When I went to price them at Aircraft Spruce, the cost was bizarre. They offer finely machined metal versions, unlike the plastic noisemaker versions on airliners.
I could be wrong, as I've never heard of this mod go by that name. Viking panels have these, at least some I've seen, employing simpler, larger plastic vent controllers. Later and contemporary ships seem to favor those gleaming machined air controllers.
My concern would be the Reynolds numbers involved. As it is, the system delivers the wing port air to the cabin with few major bends in the tubing. Snaking the tubing to the panel, if done in too convoluted a fashion, could turn an airblast into a puff. Given that you've said you're recovering the bird this winter, perhaps you can devise an elegant route and, thus, blast your face with fresh air, rather than have heavy breathing.
Pity you can't have both, the way we have in automobiles. With the cabin heat on, those lower position vents do a great job. But how many airboxes and controls do you really want, after all?
Jonathan
As I look at the ice fog out my window, notions of better ventillation seem as remote as flying in this stuff. For weeks I've dared not try to finally bring my Bellanca home from Oregon, but that's terribly beside the point
As I understand it, the mod involves re-routing the flow of incoming air (and there is a LOT of it due to those twin fresh air ports near the wing roots) from those floor mounted vents, to vents on the panel. After all, we want the air to be blasting on our faces rather than our feet in the summer. This also involves installing pricey eyeball air controls as you see on airliners. Somebody stuck one of these on a vent in the rear seat on my crate...on the floor of course. When I went to price them at Aircraft Spruce, the cost was bizarre. They offer finely machined metal versions, unlike the plastic noisemaker versions on airliners.
I could be wrong, as I've never heard of this mod go by that name. Viking panels have these, at least some I've seen, employing simpler, larger plastic vent controllers. Later and contemporary ships seem to favor those gleaming machined air controllers.
My concern would be the Reynolds numbers involved. As it is, the system delivers the wing port air to the cabin with few major bends in the tubing. Snaking the tubing to the panel, if done in too convoluted a fashion, could turn an airblast into a puff. Given that you've said you're recovering the bird this winter, perhaps you can devise an elegant route and, thus, blast your face with fresh air, rather than have heavy breathing.
Pity you can't have both, the way we have in automobiles. With the cabin heat on, those lower position vents do a great job. But how many airboxes and controls do you really want, after all?
Jonathan
Jonathan Baron
New member
Oops...one other thing. The key to ventillation in a 'Master cockpit is the vent in the roof, designed in a fashion that really sucks...the air out of the cabin. Make sure you check that vent control, as well as the external, topside structure for crap. That vent can be shut. Why....I have no idea. You'd want air - warm or cold - to circulate I'd think.
Jonathan
Jonathan
Jonathan Baron
New member
Okay, I'm an idiot. Dang, if I'd said that more often when I was married.....then again, I'd still be married.
Aztec ventillation is from the tailcone forward. Thus this has to be either a mod that fits that description, or somebody turned the exit vent on the roof around.
Jonathan
Aztec ventillation is from the tailcone forward. Thus this has to be either a mod that fits that description, or somebody turned the exit vent on the roof around.
Jonathan
Jonathan Baron
New member
Okay, it finally hit me....I KNOW the guy representing that yellow Bellanca, Dennis McCormick......hmmmm....a double-Mick-Mick.
The aircraft does indeed have tail cone vents that snake around to vents on the edges of the headliner. Problem is that some owner pulled this stunt in the 1960s. In short, forget about it
Jonathan
The aircraft does indeed have tail cone vents that snake around to vents on the edges of the headliner. Problem is that some owner pulled this stunt in the 1960s. In short, forget about it
Jonathan