angle of incedence - RCCanada - Canada Radio Controlled Hobby Forum
RCCanada - Canada's Radio Control Hobby Forum
Jet Aircraft Discuss Jets in Canada

Closed Thread
Thread Tools Display Modes
Old 05-02-2005, 10:35 PM   #1
RCC Noob
Join Date: May 2005
Location: ont

Feedback: 0 / 0%
Posts: 1
Total Props: 0
angle of incedence

       Remove this ad - become a site supporter!
what does angle of incedence mean
JG is offline   Quick reply to this message.

Sponsored Links - Subscribe to remove this ad.
Old 05-02-2005, 11:53 PM   #2
RCC Contributor
waynek's Avatar
Join Date: Aug 2004
Location: Cold Lake, AB

Feedback: 0 / 0%
Posts: 345
Total Props: 0
According to Martin Simons' Model Aircraft Aerodynamics, "angle of incidence refers only to the rigging angle" of the wing or tail.

More simply, it is the angle between the wing (or horizontal stab or vertical stab, for that matter) and some reference datum, usually the fuselage reference line or thrust line. It is usually shown on the plans.

For symettrical wings, the designer may opt for a couple of degrees of positive (up) incidence so that when the fuselage reference line is level (as it would be in level flight) the wing will have a slight upward angle, producing just the right amount of lift at the most oft-encountered regime of flight--cruise.

Hope that helps.

MAAC# 19744
AMA # 777559
waynek is offline   Quick reply to this message.
Old 05-03-2005, 12:03 AM   #3
RCC Supreme Contributor
nony's Avatar
Join Date: Sep 2002
Location: the Park, Ab.

Feedback: 0 / 0%
Posts: 4,339
Total Props: 0
The angle of incidence is a built in angle between the wing and the fuselage such that there is usually a positive angle between the aircraft datum line (centerline, if you will) and an imaginary line drawn between the leading and trailing edge of the wing. It can be as little as zero degrees for an aerobatic aircaft upwards close to 7 degrees for an airliner.
It is used to increase lift, reduce takeoff roll, enhance inflight stability and reduce the deck angle on approach so the pilots have a better view over the nose, while still allowilng the wing to work at a good angle of attack.
Diadvantages is that it increases drag, etc.

a picture is worth a thousand words:

The sooner you fall behind, the more time you will have to catch up.
nony is offline   Quick reply to this message.
Old 05-03-2005, 06:23 AM   #4
RCC Supreme Contributor
AJCoholic's Avatar
I am: Andrew Coholic
Join Date: Sep 2002
Location: Timmins, Northern Ontario
Radio of choice:
JR 12X

Feedback: 5 / 100%
Posts: 9,873
Total Props: 1
Nony your picture isnt working for me!
OK its working fine now...
Andrew Coholic -MAAC #26287L

1/2A to giant scale, IMAC, SAM, R/C sport, turbine jets, Heli's...
if its got a wing or two and an engine - I like it!
AJCoholic is offline   Quick reply to this message.
Old 05-03-2005, 06:25 AM   #5
RCC Supreme Contributor
ronm's Avatar
I am: Ronm
Join Date: Dec 2002
Location: Mission, B.C.
Radio of choice:
# of RCs: 10

Feedback: 0 / 0%
Posts: 5,625
Total Props: 0
Ron Mattiuz

Flying Tigers RC Club
"Flying an airplane is just like riding a bike...except it's harder to put cards in the spokes"
ronm is offline   Quick reply to this message.
Old 05-03-2005, 09:05 AM   #6
I am: Boolean21
Join Date: Sep 2002
Location: Singapore

Feedback: 0 / 0%
Posts: 38,228
Total Props: 56
Meaurement to a reference line is often done but is quite arbitrary and depends on the designer of the model and thus can have little basis for comparison of one plane to another.....

The best method for measuring incidence is to put the meter on the stab and set the angle of the fuse so that incidence of the stab is measure the wing and thrust for incidence and you will have a good reference to where everything is at. This also allows simple comparison between other models.

A good designer will draw the reference line for a model with the stab set to 0 incidence, and reference all other incidences (including thrust) to that line.

How to set these is another topic entirely.....
PurgatorY is offline   Quick reply to this message.
Closed Thread

Quick Reply

Register Now

In order to be able to post messages on the RCCanada - Canada Radio Controlled Hobby Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

Member names may only be composed of alpha-numeric characters. (A-Z and 0-9)

!!ATTENTION ADVERTISERS!! If you intend on advertising anything on this forum, whatsoever, you are required to first contact us here . Additionally, we do NOT allow BUSINESS NAMES unless you are an Authorized Vendor. If you own a business, and want to do sales on this site via posting or private message, you will need to follow the rules. Shops, Stores, Distributors, Group Buys without being authorized will see your account terminated.
User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:
Your Name
Your first name and last initial is required if you plan on using the forum.
Which city & province you live in. This is mandatory for classified listings.
Radio of choice?
Which radio is your current favorite to use?
Number of RC Vehicles?
How many boats, cars, planes do you own?


Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
vBulletin Message

Thread Tools
Display Modes

Forum Jump

All times are GMT -5. The time now is 11:16 AM.

vBulletin Security provided by vBSecurity v2.2.2 (Pro) - vBulletin Mods & Addons Copyright © 2016 DragonByte Technologies Ltd.