No such luck. Received email and text that I owe $240 for import duty. I could attempt to contest it but I'm told the package will be returned in 5 days if unpaid. Do I chance it or just pay up and get the thing here? At this point I'm probably just going to pay it to avoid delay. Got a plane to build.Once they realize there is no tariff due (per your declaration), and that they do not need to collect any more money from you, they will probably send it on forthwith.
You could contest it but with the clock running....No such luck. Received email and text that I owe $240 for import duty. I could attempt to contest it but I'm told the package will be returned in 5 days if unpaid. Do I chance it or just pay up and get the thing here? At this point I'm probably just going to pay it to avoid delay. Got a plane to build.
If purchasing overseas again I will be better studied going in, making it clear these are exempt items. As for this purchase it's just a life lesson in things to check.Do you have the time and patience to go back now and try to find out why you were charged duty on exempt materiel?
Hi John.That's nice! Is it a single or double bearing model? It looks like it could be a 2 place head.
Hi Doug.It IS pretty, Brian.
As a self-confessed physics nerd, I'm sure you're aware of the geometry of offset gimbal heads. The rotor disk blows back during forward flight at an angle of 2-3-4 degrees aft of perpendicular to the spindle axis. The rotor thrust line, being itself square to the plane of the rotor disk, then leans forward of the spindle. We therefore locate the head's fore-aft pivot ahead of the spindle.
Nominally, that pitch pivot ought to be placed at the intersection of the rotor's thrustline and the torque bar. It turns out, though, that if you place the pitch pivot even farther forward than that, and balance the resulting nose-down bias with a trim spring on the back end of the torque bar, you create a helpful, variable soft link between the rotor and the airframe.
Why this review of old hat? A very tall rotor head may require more pitch-pivot offset than the standard 1" to preserve the excess-offset-plus-spring setup. If this head is offset more than 1", that's probably good.
Wonder why the blades are limited to a very modest 70 mph airspeed? Gyro rotors generally get happier at higher airspeeds up to 100 mph o more, as long as the teeter hinge can accommodate the increased teetering action.
I may have missed it Brian if already posted, but what blade loading are you aiming for?Hi John.
It has one double-row bearing listed as '3206 A-2RS1TN9/MT333'. The teeter block is four-bearing + bushing which is replacing the existing bushed-only type teeter block that came with the blades and hub bar. This head is used on two-place ships and beefier than what I've seen used on most 'Bee designs. I have worked with the factory to make sure the blades and the head are suited for the mission and AUW.
If the mission from the start had been 'fast and powerful' I may have chosen different blades. I kinda went the opposite direction, wanting the ship to be a platform for learning rotor management. (Yes, physics nerd). Gyro-Tech Poland made a set of now-discontinued high-lift carbon blades I was able to purchase. Their Vne = 70 MPH, so she's not going to be a speed demon. The ship will be intentionally heavier than UL to keep blade loading in the range needed.
Next up: finish machining the vertical strut mast attachments. Have progress photos to share when they are complete and installed. Starting to feel pretty good about this project. Just didn't realize it'd be years in the making.