Rudder Pedal modifications

27 Apr 2005 Rudder Pedal modifications

From ship:

Hi John,
You’re more than welcome to DIY….I probably don’t have enough people (I
need 50) to get the AN bolts made. The fallback will be to publish the recipe to
the community. Cost will be about the same by the time you add in the
shipping for a measly few parts.

Here’s the “hardware store” recipe:
2 Grade 8 bolt 1/4-28 x 7.5 in. McMaster-Carr 91257A428
(5 is min order)
1ft. 6061T6 tubing 3/8 x .277i.d. Aircraft Spruce 03-35600
1ft.
1ft. 6061T6 tubing 1/2 x .377i.d. Aircraft Spruce 03-35900
1ft.

McMaster doesn’t have the proper 1/2in tubing and they only sell in lengths
of 3ft or more.

Total will be about $15 for materials ($12 for bolts, $1 ea tube). If you
don’t have other stuff to order from ACS have them delivered by mail because the
shipping will cost more than the tubes!! Better yet, see if you can find
everything locally up there in AK.

If you can only find the 3/8 tube in .245 i.d. it’s easy to ream out with at
1/4 drill after you’ve cut them to length.

you’ll need to do the following:
— drill out the outboard pedal holes to 1/4in. (inners are already 1/4inch)
— new bolts are mounted from outboard side (nuts on inboard side)…If
pedals are installed in fuselage you will need to remove right side foot box panel
to get the bolt in
— place the new bolts in both pedals to make sure there’s no interference or
binding
— make sure the bolt ends are at least 1/2 inch apart so they can’t hit each
other when the pedals are centered ….measure the clearance on Van’s
installation prior to removing the existing inboard bolts
— trim the bolt length as needed (appx 7.25 inch) (grind it on Scotchbrite
wheel, etc.)
— drill the bolts for cotter pins (you MUST use castle nuts like Van’s)
— cut tubes into 5 1/4 lengths
— thoroughly deburr the tube ends — tubes should slide freely inside each
other
— mount and your done.

You can use both tubes or only the smaller tube….see how it feels.

You may want to adjust your pedals for more back-angle to accommodate the
change in foot position caused by the bars. I like to have my heels against the
lower pivot tubes but it’s all a matter of personal preference.

Email me if you have any ?’s…..and let me know how they feel after you have
flown with them.

ship