Search results

I'm struggling with placement and orientation of the AN804-6D bulkhead tee where the fuel lines come together at the front doorposts (Station B-P). It seems that if I just drill the former and install the T as shown in the Bearhawk Book (image attached here), I will end up with a localized low...

Hi all, I'm seeing interference between the AN115-21 shackle and the flange at the top of the elevator horn, when the elevator is deflected down below the neutral position. At the "full down" elevator position, the shackle is about 35 degrees off line from the cable: ​ The previous builder...

Hi all, In July 2003, an OPTIONAL engineering change modified the length of the 4-place rudder horn from 3-1/4" "center to hole" distance to 2-1/4": http://bearhawksafety.com/4-place/changejul03.html In October 2007, a subsequent engineering change was released to change the design back to the...

I've encountered a puzzle with my 4-place A-Model flap hinges. Background info: Kit was manufactured in 2006. The hinge plates (sheet metal parts that bolt up to the flap spar) were delivered cut, bent, and primed, but without any holes drilled in them. The plans call for MS21152-2 rod end...

Hi all, I'm puzzled about locating the screws/nut plates for the aux tank covers on my A-model wings. The build instructions say to position them "...so they fall midway between the existing skin rivets (to give room for nut plates, etc.)," It seems if I do this I won't have screws at the...

I ended up going the "Buy" approach for sight gauges, following the guidance from the builder's manuals (old version and the updated guidance at https://bearhawk.tips/3609). Here's an abridged version of the story: What I purchased: McMaster 1106K24 (High-Pressure Oil-Level Indicator, Aluminum...

Hi all, I will start with caveats and disclaimers: This is my first build, so input from all is welcome! This is an OLD kit - delivered from Avipro to the first owner in 2006. Some work was done on the fuselage by that individual (landing gear install, tailfeathers initially fitted), and the...

Tubing Bender for 3/8" Fuel lines: Imperial 368-FH (YES) vs. Harbor Freight (NO) I am working with two tubing benders: Imperial 368-FH, and a Pittsburgh model from Harbor Freight (SKU 3755). Both are lever-action and claim to handle 1/4, 3/16, and 5/8 inch tubing. The HFT tool will bend to 180...

Hi all - Sometime this summer I'm planning on match-drilling my A-model QB wings to the fuselage, and trimming/drilling the lift struts. I've scoured this forum and the other Bearhawk sites, and have found what I think are the most recent instructions for my (quite old) kit: Drilling wings to...

Hi all, I've installed the aileron cable fairlead in the flap torque tube support bracket at the wing root, and I'm finding that the fairlead collides with the outboard surface of the root rib. This pushes the support bracket over (toward the wingtip) and causes the flap torque tube to bind up...

Well I tried to test-fit my aux tank from the top side of the wing, before cutting the hole in the bottom skin. Unfortunately the tanks (including the welded fittings) seem to be wider than the spacing between the ribs. The Beartracks article from 1996 says the tank should be 13-1/4" wide. The...

It's time for me to cut one of my 4-place QB wings (A model) open to install the aux tank. The latest builder's manual at bearhawk tips recommends against using snips and seems to caution against using a die grinder. The older builder's manual (PDF version) mentions using a jigsaw, but as that...

I've just become the proud owner of an A-Model 4-place kit. A bit of work was done on it shortly after it was delivered in 2006, but it's otherwise been untouched and sitting in storage for the last ~10 years. It became obvious my 2-car was too small for the build + storage of everything, so I...

Hi all, I'm doing a prebuy inspection on a partially-assembled 4-place QB kit next week which a neighbor has agreed to sell to me. It's an A model, circa 2010, with a fuselage number in the mid-20's. I'm hoping to find a packing list from Avipro in the paperwork that's with the kit to help me...

I'm getting close to pulling the trigger on purchase of a 4-Place QB kit, but need some info on rear seat area. Is it big enough to fit 2 "FAA-standard" adults? My wife and I visited a completed BH recently but only tried the front seats (which were great!). Unfortunately we didn't think to sit...

I'm considering taking the plunge and starting a 4 place QB build. I have a 2 car garage, 19x15 feet. Would the fuselage fit for some of the build, maybe up to the point of rudder and engine installation?

Hi all, Dave here. Private pilot for many years, flying certificated light singles. Considering a 4 Place QB kit as an alternative to a 182 or Skywagon. It would be my first build. I'm good with engines and electronics, but my attempts at welding have been pretty comical, so the kit route is...