Firewall Forward Kit Arrival
Last week I received the custom firewall kit I ordered to install the 915iS on my Sling 4. Shipping took a long time – almost 5 months – but I’ve read it’s a widespread issue in sea container shipping right now. Everything in the kit arrived just fine. I...
Aileron Trim Kit
It’s been a little bit since I posted, but there are a few exciting developments to share. First, I got word that my firewall forward kit arrived in Torrance CA last week and is on its way to me! This is the long-awaiting custom kit that will allow me...
Rotax 915iS vs 914UL: Cost and Technical Differences
By request, here’s a breakdown of the technical and cost differences to equip my Sling 4 with a Rotax 915iS engine instead of the Rotax 914UL engine. As a quick reminder of why I’m doing this: +26HP at takeoff power (5800 RPM), +35HP at max continuous power (5500 RPM),...
Engine Arrived
My engine arrived today! This is the Rotax 915iS engine, and as I described in an earlier post, this particular engine is used with just 12 hours on the clock. Even though I bought it locally, it was inspected by Lockwood Aviation down in Florida, as they are currently...
Engine On The Way
Coming soon to my workshop: a Rotax 915iS engine! Those familiar with the Sling lineup know that the 915iS engine normally is found on the Sling TSi, not on a Sling 4. So, my airplane is going to be somewhat unique, but that’s part of what experimental aviation is...
Engine Choices
Here’s what I have to choose from: Notes: NA = Naturally Aspirated EFI = Electronic Fuel Injection 5 min max continuous power (for takeoff) 154HP is the advertised power, but I would probably ask for derated to ~135 HP for compatibility with a Whirlwind propeller Price when purchased through...