Weight savings help!!
Del Rykert
drykert at rochester.rr.com
Wed Feb 26 15:58:23 AKST 2003
Ihncheol.
I have had tow of my plug in wings of my 60 size Nova down to 10oz per panel with retract and servo. Lite weight foam wheels, Nothing special abt the Airtronics servo's. Were contest grade ball bearing but don't remember number. Was honeycombed and covered with 3/32 balsa from Lonestar. I had to double the order of planking and picked and balanced the weight as they were sheeted. In otherwords I left half of the order for other projects.
I followed the lead I learned from Mark Scheda who was a real fanatic for watching the Grams to take care of the oz's.
Del K. Rykert
AMA - 8928
NSRCA - 473
Kb2joi - General
----- Original Message -----
From: Ihncheol Park
To: NSRCA
Sent: Tuesday, February 18, 2003 3:32 AM
Subject: Weight savings help!!
Hi, All,
I am in the process of trying to reduce weight of my plane including
building a new wing with foam core, replacing servos with less weight,
smaller battery etc.
How much can a wing weigh if it is 837 sq-in 67.7" (68") dual servos and
glassed in the center sections top & bottom?
My wing right now weighs 1160g (40oz) with 136G, Supra 60 size retracts, 2x
55mm Tettra wheels, Central hobbies axles, 2x 7005 servos with central
hobbies pushrod, MK horns, and adjusters. Kinda too heavy?
My fuse weighs 2870g RTF. Really heavy for 68". I am not sure how much I
can save from repainting the fuse because I have no data on the weight
before priming and/or painting.
Does anyone know the weight of 2.5" FAI 120-cut, Lightened back plate TT
spinner weight without the screw?
I use 2.5" standard 120-cut that weighs 56g w/ screw, 51.03g wo/screw.
How much can I save?
My battery is Nicad 1700mAh w/ JR connector 140g.
This runs 1x 8411, 2x 7005, 1x Hitec 225, 1x 8231, 1x Futaba 136G
What other type of battery in smaller or lighter weight can I go with?
I use Alpha 4 as primary charger.
Thanks,
Ihncheol Park
1973 White Ave., #402
Moscow, ID 83843
(208) 883-7882 Home
(208) 661-5018 Cellular
PatternFlyer at msn.com
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