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Airflow Systems: Difference between revisions
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* Check the 90-degree fittings before attaching to the condenser as there might be white powder / residue inside from the soldering process. Can be removed with a round brush and blown out with clean compressed air. | * Check the 90-degree fittings before attaching to the condenser as there might be white powder / residue inside from the soldering process. Can be removed with a round brush and blown out with clean compressed air. | ||
===== Painting ===== | |||
* Consider priming and top coating the fuselage bottom skin that is underneath the scoop (primer alone is porous and not suited for wet areas). | |||
* The scoop needs to be painted before mounting it. | |||
** Rough up the gelcoat with sandpaper. | |||
** Smoothen the seams between the different parts of the scoop. | |||
** Fill pin holes and rough areas with epoxy filler. | |||
** Consider creating a smooth transition between the entry opening and the inside walls. | |||
** Suitable filler is [https://www.totalboat.com/product/totalfair/ TotalFair]. You can smooth the surface and transition at the edges with a wrinkle-free glove wetted with 70% isopropanyl alcohol. | |||
===== Evaporator Shelf Mounting ===== | ===== Evaporator Shelf Mounting ===== | ||
*The evaporator shelf touches the vertical bulkhead support on its front side and sits flush against the inside edges of the longerons. The manual states that this is roughly 3 inches back from the bulkhead but it's only 2 inches<br>[[File:2022-08-14 15-11-31.jpg|400x400px]] | *The evaporator shelf touches the vertical bulkhead support on its front side and sits flush against the inside edges of the longerons. The manual states that this is roughly 3 inches back from the bulkhead but it's only 2 inches<br>[[File:2022-08-14 15-11-31.jpg|400x400px]] | ||
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* The rivets supplied for mounting the evaporator shelf are usable but weaker than necessary. They have a marking of "OIDC" instead of a small center dimple. They are made of a soft alloy. Use proper aircraft AD rivets instead. The rivets are not used in a shear fashion, rather the shelf hangs off the rivets underneath the longeron. They need to be strong. | * The rivets supplied for mounting the evaporator shelf are usable but weaker than necessary. They have a marking of "OIDC" instead of a small center dimple. They are made of a soft alloy. Use proper aircraft AD rivets instead. The rivets are not used in a shear fashion, rather the shelf hangs off the rivets underneath the longeron. They need to be strong. | ||
* The kit has only one washer per bolt to attach the evaporator shelf to the side braces. Better to use a washer on the top and bottom to distribute forces across the soft fiberglass | * The kit has only one washer per bolt to attach the evaporator shelf to the side braces. Better to use a washer on the top and bottom to distribute forces across the soft fiberglass | ||
===== Evaporator Mounting ===== | ===== Evaporator Mounting ===== | ||
*There are a lot of loose ends when mounting the evaporator. The issue is that at the point where you would install the AC (before closing out the floor panels), the tailcone bulkhead does not have predrilled holes yet for the closeout panel as it comes from Vans. So the holes in the upper closeout that Airflow sends don't match up with any existing holes.<br>[[File:2022-09-17 19-11-03.jpg|400x400px]] | *There are a lot of loose ends when mounting the evaporator. The issue is that at the point where you would install the AC (before closing out the floor panels), the tailcone bulkhead does not have predrilled holes yet for the closeout panel as it comes from Vans. So the holes in the upper closeout that Airflow sends don't match up with any existing holes.<br>[[File:2022-09-17 19-11-03.jpg|400x400px]] | ||