TCat

TCat's Activity

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   TCat added a post in a topic FWF/Jabiru    23 Jul 2020

   Thanks guys. I don't even think I can reach the bolt from the top, but I'll give it a shot.
   Any thoughts on firewall penetrations? I would really like to get some done before mounting the FW and engine
    
   

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   TCat added a post in a topic FWF/Jabiru    22 Jul 2020

   Well I'm finally back at it again after catching the CoVid. All good now and looking to make some progress. Hope everyone out there is doing well. I would appreciate it if anyone has some guidance on pre-drilling FW penetrations before permanent mounting?
   Also, I tried to upgrade my tail wheel spring and found out that the stud/bolt from the Fuse is only 3/4" long. The new 3 leaf spring is that thick alone! I don't plan to be doing any rock hopping and I wonder if leaving off the smaller leaf would be adequate?  
   

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   TCat added a post in a topic FWF/Jabiru    27 Nov 2019

   Thanks for the responses guys. Much obliged. I re-read the Jab installation manual this morning and the area numbers were actually for the 3300. None actually quoted for the 2200. This afternoon I worked on refitting the cowlings. More trimming(4 times) and fitting and everything is coming together. I can see that it is very close to being correct. Also calculated the inlet area and it is much less than the area for the 3300. I should be fine on outlet area. I to have seen the wicker bill technique used and it is a viable and easy option, should flight testing reveal the need.   
   Safe and Happy TG all
   

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   TCat added a post in a topic FWF/Jabiru    25 Nov 2019

   Thanks again Jim. I tend to agree that it may all work out, but I am a long way from a flight test. I need to be reasonably close to the ultimate fit, so I can set it aside and remove the engine to finalize all Firewall penetrations, windscreen, brakes, etc. Still have to recover the wings and build a panel. Much to do! I also may have to fab some air ducts, since it is very tight. I admit that I am a little concerned about summer temps here in Houston. Take care.   
   

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   TCat added a post in a topic FWF/Jabiru    25 Nov 2019

   Thanks for the info Jim. I've seen many of your posts and I greatly respect your experience and skilled craftmanship. It means a lot to a novice. Is yours a 2200, and if so, would you happen to know the inlet and outlet areas. I am skeptical of the numbers I see in the Jabiru manual. At a 3 to one 1 ratio of outlet to inlet, a small error on the front end can result in a big difference on the back end.   
   

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   TCat added a post in a topic FWF/Jabiru    25 Nov 2019

   I still need a measurement from the bottom of the fuselage to the top of the lower cowling, at the door post. I seem to be making progress, after many fittings and trimmings to the top cowl. Checking back on the Jabiru cooling info, it seems I need much more cooling area at the aft end of the lower cowl. More than it seems I can possibly achieve! Any assistance is greatly appreciated. I really need to get this done and move on to other items.   
   

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   TCat added a post in a topic FWF/Jabiru    30 Oct 2019

   The Firewall and engine are temporarily installed. That is indeed the pamphlet I was referring to.
   

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   TCat added a topic in Kitfox IV    30 Oct 2019

   FWF/Jabiru

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