In low ceilings (21 ft) we moved in same direction with just little higher pitch. The only explanation to offer about wide cross section would be much better power per turn last quarter of flight. That portion of flight proved to be extended even just before landing compared to lower pitch thin motors . With higher pitches it demand a very well constructed (straight) model void of slightest warps. After achieving this it came as a surprise when moving back toward 1.8/1 with thinner motors flying in general was so much easier with same flight time. Makes me wonder if all that was realized was finding micro warps and perhaps optimum trim settings. BTW: years a go we watched Don Slusarcrzk at Kent (48 ft?) put up best WS flight at the time with 2.6/1 pitch.
----- Original Message -----
From: brantfredrickson<mailto:brantfredrickson_at_yahoo.com>
To: Indoor_Construction_at_yahoogroups.com<mailto:Indoor_Construction_at_yahoogroups.com>
Sent: Monday, January 28, 2008 8:48 AM
Subject: [Indoor_Construction] 2008 Div C SO
We had some models from last year where we changed the prop dia from
~7.24 to ~9.5 inches. We moved the pitch from ~12 to ~18 inches and
moved the rubber width from .85 to .112 inches. Our times in the same
22 ft gym have gone up about 10%.
I am amazed that we don't run out of turns with the wider rubber. I'm
having difficulty understanding why out models work so much better
with the higher pitch and wider rubber. Anyone want to offer an
explaination?
[Non-text portions of this message have been removed]
Received on Mon Jan 28 2008 - 09:41:15 CET
This archive was generated by Yannick on Sat Dec 14 2019 - 19:13:45 CET