Elevator control tube boot ??

[SHIPCHIEF]

I thought the air would be flowing out the aleron push rod holes into the wing? The only openings in the wing are @ the rear spar, which should be a low pressure?
Don't racers seal these to reduce plume drag?

[Pilottonny]

I flew the plane a few times since my last mod (elevator push-rod boot), yesterday it was around 2°C and I could still feel lots of cold air coming in. Now it is coming in through the flap push rod openings and the rear of the slider skirt. I expected air to be sucked out here, not coming in.

Somehow a lot of air is sucked out of the cabin, otherwise no air could come in

I have, more or less, sealed the side canopy skirts with foam-rubber strips, stuck on the inside of the skirt and sealing on top of the longerons. What I will try next, is taping up the front of the slider. I suspect that there is a lot of suction in that area.

If anybody has anymore suggestons, please post here.

Regards, Tonny.

[Pilottonny]

Flew the plane again, a couple of days ago, at -1°C.

Since I only noticed the cold air coming in, when I shut the ventilation off when it was getting colder, I figuered this is a pressure issue. So I opened the heat more than just a crack (far to hot with the Vetterman mufflers) and also opened up the vents, to allow some cold air to mix with the hot and "Voila", no more cold air coming in at the back.

At the moment the temperatures are getting slightly higher, so I am not going to play around with this problem for the time being. May even leave it the way it is, if the wife is comfortable with it.

Regards, Tonny.