----- Original Message -----

From: John

To: Rotary motors in aircraft

Sent: Monday, July 12, 2010 11:24 AM

Subject: [FlyRotary] Flight Test

Here is some test data on my 13B Tailwind.  Marcotte Redrive, ration 25 x 51.

 

1st hour

 

engine rpm 5600 max      prop is Fred Felix 67 x 70, bi-cambered

water temp  190

oil temp       192

fuel press      42

ex temp     1600

MAP           28.5

OAT              76

air speed indicated 163

 

2nd hour

 

engine rpm 5800        At .7 hr into flight the engine was picking up rpm so I throttled back 100 rpm's and tuned the A/F

water temp  185        mixture and the engine picked rpm to 5800 rpm again.  The engine must be breaking in and it was

oil tem         170       running real nice,  VVI was indicating climb of 200 feet per minute.  At this point the Marcotte Redrive

fuel press      42        started to vibrate so I throttled back to 2000rpm on the engine, by this time I could smell 80w and

ex temp     1600        smoke.  I did a 360 turn and I'm flying in the only cloud for 100 miles.  It doesn't give you a fuzzy                                       warm feeling going 190 mph and having a fire at 4000 feet AGL.   My landing was less than stellar

MAP             27        so will have to repair the plane next winter.  I should have been reading between the lines in the

OAT             60         Contact Magazine and replaced the redrive before flight, when it failed the front seal fell out and the

air speed indicated 190         80W followed.

 

Thanks to all you folks for you assistance in getting the engine running real nice.  To bad the redrive was garbage.

 

JohnD....I was really happy I didn't get injured