REFLECTOR:exhaust system, my solution
reflector@tvbf.org
reflector@tvbf.org
Sat, 12 Jul 2003 17:23:11 EDT
See photos at "photos.yahoo.com/n19dw", click on "Velocity" folder, then on
each picture to enlarge.
System is 3 individual pipes on each side that direct exhaust down, then bend
45degrees up to exit cowl in an aft direction. Each pipe is one piece rigid
with no slip joints, springs or supports, but each has a safety cable. Pipe
lengths are from 10 inches long to maximum 20 inches, minimizing heat expelled
inside cowling.
Advantages:
1) No hot pipes in fwd section of cowl and therefore no possible breaking
pipes and fire in fwd cowl.
2) 6 individual pipes minimize exhaust back pressure to give best breathing
for each cylinder.
3) Closest pipe exit to MT prop blade is 15 1/2 inches which produces almost
no deposit on cowl and very slight glaze on prop.(See photo 6) Note: crankcase
breather exit tube clamped to right fwd exhaust pipe. Don't have to worry
about that tube freezing.
So far 43 hrs on this system with no problems or cracks.
Don White N19DW XL/RG