Matronics Email Lists

Has anyone considered torsion in the spar box as a possible culprit for the shimmy? The video shows both legs vibrating forward and back, and it is the spar box that links the two. This could also e ...

So Buz, if my interpolation skills are up to par, you could shut off your fuel altogether and cruise all day at 100 mph. Shocked

John Eynon
Lightning kit #53

Colin,

As I recall, I needed longer bolts for the nose fork assembly, and the stop bolt. I think the spacer blocks are a little larger now then they were originally, which changed the required har ...

Is the tachometer sender included with the Jabiru engine, or do I need to source this myself? What should I look for?

I would also be interested in how other builders installed their antennas; wh ...

What I did was after bonding the canopy to the inner canopy frame, I ran a piece of narrow painters tape (easy to remove and leaves no residue) around the outside of the canopy, matching the lower edg ...

Nick,

Hope everything went well at Oshkosh. I wish I could have made it.

I would like you to send me a prop bolt kit. Do the prop bolts need to be safety wired?

I received my replace ...

I just checked whether AN5 bolts would fit, and while they will go through the propeller (looks like the propeller could even take AN6) the mounting bushings and plate are drilled for AN4.

John

...

After the great response I received on the prop hub question, I thought I would try again with the prop itself. I'm using a wood Sensenich wood prop. To bolt the prop to the hub the Jabiru manual ca ...

Thanks to all for the lightning quick responses. The attachment Pete sent is better than I was hoping for.

John Eynon
Lightning kit #53

Can anyone tell me what is the proper torque to use for the bolts, and what type of thread compound should be used when installing the prop hub extension? I vaguely remember seeing this information so ...

Thanks for your response Earl, and your explanation Buz. I'll strip her bare and go from there. It's all theory until she flies.

John Eynon
Lightning kit #53

I expect that the weight of the unbalanced elevator would be equivalent to nose down trim requiring a certain amount of nose up trim to compensate. The weight of the elevator pushing down is always t ...

I have recently received the new trim system for my Lightning to replace the bungee trim, but I am confused about how to balance the elevator. Is the balance bungee still used?

John Eynon
Lightni ...

Living in Southern Illinois, I've discovered that it's not so much the temperature but the dew point that tells you what you need to know. When watching the weather forecasts, I look more at the over ...

For some reason I'd rather think of myself as a short guy with a long torso than a tall guy with stubby legs.

John Eynon
Lightning kit #53

I have also been trying to drop the seat pan to gain head room, but am running into the spar box torsional support tube. I could probably gain an extra inch or more if the seat pan weren't blocked by ...

Could anyone tell me how much rudder travel we should have? I just installed the new rear elevator bell crank and put the rudder back on. When the rudder reaches the end of its travel, it hits the b ...

Just wanted to correct my last post. The bottom of the gear legs are not as far off as I thought. With a good night's sleep and fresh sanding muscles, the wheel side of the gear legs are sand-able. ...

First off, I would like to say a heartfelt thank you to everyone participating on this forum. You are an invaluable resource to the lone builder (cue: coyote howling in distance).

With a satisfied ...

Thanks for the responses. It's reassuring to know I'm not the only one spending hours sanding his shaft.

John Eynon
Lightning #53