Online Community of Zenith Builders and Flyers
Yes, my 601 HD has a solid lifter Jabiru 3300 up front. It climbs great but doesn't fly any faster that I can see. My installation is probably not tuned as well as it could be. I used the FWF package from Pete without any real problems. I have dual throttles. I beefed up the firewall with both the HD braces and the then current XL braces. The XL later added even more bracing along the shelf, but I haven't had any problem there. I also used the XL canopy. My plane is hangered in Warrenton, Virginia. There are some videos on youtube. Search for "N601T".
Jeff, thanks for chiming in. It looks like your main gear has the bungee cord shocks. Is that right, and if so how often do you change the bungees?
Thanks. That's good news about the longevity of the bungees on the mains, and I suspect you're right about the engine heat causing premature failure of the nose gear bungee. I replaced mine in July because it looked like it had a social disease and my prop ground clearance was getting scary. I also used the Zenith tool; you still have to lower the strut below the top firewall stiffener hole to loop the bungee over the strut top, but the tool definitely makes the job easier. I'm thinking about installing the Viking spring strut.
i am looking for a faster plane i fly a ch701 c/w 80hp 912 now.. and am getting 90mph cruse... what you are saying is the 601hd with 100hp 912s will only do 10mph faster....
i was looking at the web site and they are claiming 120mph... ???? who do i trust
I dont trust the specified numbers. I have seen 110mph in discussions with a 100 hp 912. I will put a viking 130 hp engine in mine. People say the limiting factor is the wing design - increased speed just increases drag. But no one has ever put a 130 hp high torque engine in it. It will be fun to see the numbers. Unfortunately, my airplane wont be complete for another several years. I agree that I wanted a faster airplane, but since I’ll be flying sport pilot rules anyway, and since I adore the design, the 601 HD is for me.
The 601 HD design is supposed to be lmited to 115 hp, so I’ll keep the V-130 to max 5000 rpm at which the output is 115 hp. We’ll see..... Afterall, these are EXPERIMENTAL airplanes!