HobbyKing.com New Products Flash Sale
Reply
Thread Tools
Old Jan 15, 2007, 07:03 PM
Registered User
Ontario
Joined Aug 2005
172 Posts
Discussion
watts/weight in a slow flyer

Hi,

Anybody can tell me the relation between Watts/weight for slow flyers? the plane will be between 25 till 29 oz.

Thanks

El Flaco
El flaco is offline Find More Posts by El flaco
Reply With Quote
Sign up now
to remove ads between posts
Old Jan 15, 2007, 07:21 PM
SCCA, EAA, M.E.
spinnetti's Avatar
USA, KY, Verona
Joined Nov 2001
3,078 Posts
Quote:
Originally Posted by El flaco
Hi,

Anybody can tell me the relation between Watts/weight for slow flyers? the plane will be between 25 till 29 oz.

Thanks

El Flaco
Opinions will vary ALOT..

I find 50 watts/lb to be fine, and more if you want to go crazy...

My slowstick is only about 43w/lb, and my tiny Adrenaline Rush mini hot liner is almost 200watts/lb..

100watts/lb will hang on the prop in many instances. For a slow flier, better to save on weight and come in betweent 50-100watts/lb..

Just my .02....
spinnetti is offline Find More Posts by spinnetti
Reply With Quote
Old Jan 15, 2007, 07:25 PM
Promoting Model Aviation...
Murocflyer's Avatar
United States, CA, Tehachapi
Joined Nov 2005
25,095 Posts
Wow, I was just thinking about this earlier.

I've seen a watts per ounce list, let me see if I can find it. I just saw it recently.

Frank
Murocflyer is offline Find More Posts by Murocflyer
Reply With Quote
Old Jan 15, 2007, 07:37 PM
Promoting Model Aviation...
Murocflyer's Avatar
United States, CA, Tehachapi
Joined Nov 2005
25,095 Posts
Found a few posts on the subject:

1

50 watts per pound = Casual/scale flying

75 watts per pound = Sport flying and sport aerobatics

100 watts per pound = agressive aerobatics and mild 3D

150 watts per pound = all out performance.

2

Trainer: 50-75W/lb - Can take off and do simple aerobatics.

Aerobatic/Sport: 75-100W/lb - Able to do consecutive loops from level flight

Pattern: 100-150W/lb - Extended vertical climbs, and large loops.

3D: 150-200W/lb - Unlimited vertical, able to hover and perform other high alpha moves

3

TABLE-ONE “Watts/Ounce” (models under 1 lb)
Watts/Ounce Type of Aircraft
1.0 Barely get off the ground
1.25 Powered Sport Sailplanes, Indoor RC
2.0 Parking Lot/Backyard Flyers
3.0 Aerobatic flying
5.0 E-3D models

TABLE-TWO “Watts/lb” (models over 1 lb)
Watts/Pound Type of Aircraft
30 Barely get off the ground
40-50 “Sunday” flyer, sport sailplanes and old-timers
60-70 Mildly Aerobatic
80-100 Aggressive Aerobatic
100 plus Ducted Fans, Competition Sailplanes and E-3D models
Murocflyer is offline Find More Posts by Murocflyer
Reply With Quote
Old Jan 15, 2007, 07:49 PM
Registered User
Ontario
Joined Aug 2005
172 Posts
Wowwww

thanks for the fast reply!!!!!

El Flaco
El flaco is offline Find More Posts by El flaco
Reply With Quote
Old Jan 15, 2007, 07:57 PM
Registered User
Ontario
Joined Aug 2005
172 Posts
Wowwww

thanks for the fast reply!!!!!

El Flaco

Ups, double post...........double thanks,
El flaco is offline Find More Posts by El flaco
Reply With Quote
Old Jan 15, 2007, 07:59 PM
Promoting Model Aviation...
Murocflyer's Avatar
United States, CA, Tehachapi
Joined Nov 2005
25,095 Posts
You're welcome.


You're welcome.

That's what we do here.

Frank
Murocflyer is offline Find More Posts by Murocflyer
Reply With Quote
Reply


Thread Tools

Similar Threads
Category Thread Thread Starter Forum Replies Last Post
In search of an uber-slow flyer. Sparr Scratchbuilt Indoor and Micro Models 27 Jan 05, 2007 04:47 PM
Discussion thrust/ weigth in a slow flyer. El flaco Parkflyers 0 Feb 17, 2006 08:28 PM
Slow Stick mod in Backyard Flyer or Quiet Flyer? dawnron1 Parkflyers 0 Mar 26, 2004 05:01 PM
For Sale: GWS Funny-Park Slow Flyer kit. New in the Box. Gerald Aircraft - Electric - Airplanes (FS/W) 4 Jul 06, 2003 10:13 PM
What is involved in changeing your SkyScooter to a 10-4.7 slow flyer prop? shredder Foamies (Kits) 3 Apr 22, 2001 03:51 PM