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| Electric flaps. Help! http://t18.net/thorpforum/viewtopic.php?f=36&t=6947 |
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| Author: | flychris [ Sun Feb 26, 2012 8:32 pm ] |
| Post subject: | Electric flaps. Help! |
Ok so I put in some new parts pics to come tomorrow with everything updated. Problem is I need to get rid of the flap handle anyone have a how to on adding electric flaps? Chris |
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| Author: | flychris [ Sun Feb 26, 2012 8:44 pm ] |
| Post subject: | Re: Electric flaps. Help! |
Here is an outside shot with the new wheel pants and the 360 and CS prop on. Hope to run this week! Sun N Fun is the goal.... Might not have all the pretty details done but it will be flying. Attachment: gettingclose.JPG [ 1.75 MiB | Viewed 14959 times ] Chris |
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| Author: | Bill Williams [ Mon Feb 27, 2012 6:07 am ] |
| Post subject: | Re: Electric flaps. Help! |
Google "Firgelliauto" search for FA-240-S-12-3 linear actuator. Remove your old flap assembly. Behind the seat bulkhead under the baggage compartment add a bracket to support the linear actuator. The flap cables will need to be shortened and wiring for the motor added. This actuator has built in limit switches. |
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| Author: | leewwalton [ Mon Feb 27, 2012 7:40 am ] | ||||
| Post subject: | Re: Electric flaps. Help! | ||||
Here are a couple of visuals using the actuator Bill mentioned. Makes for a very simple and clean install in just about every way.
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| Author: | stug [ Mon Feb 27, 2012 3:21 pm ] |
| Post subject: | Re: Electric flaps. Help! |
Looking at the specifications for that actuator it weighs 2 pounds am i right to suggest that by removing the flap handle and associated mounting then there is likely to be no or very little overall weight penalty going electric? |
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| Author: | fytrplt [ Mon Feb 27, 2012 3:42 pm ] |
| Post subject: | Re: Electric flaps. Help! |
Correct! And you free up the tunnel to provide an entry step. |
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| Author: | Brent Schultz [ Wed Apr 04, 2012 1:57 pm ] |
| Post subject: | Re: Electric flaps. Help! |
On the Thorp site in the questions and answers is says use the 2" actuator, but I see a 3" actuator discussed. Does it matter which one is used? Brent Schultz |
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| Author: | leewwalton [ Wed Apr 04, 2012 2:02 pm ] |
| Post subject: | Re: Electric flaps. Help! |
Brent you want the FA-150-S-12-2 (2 inch) actuator. |
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| Author: | Brent Schultz [ Wed Apr 04, 2012 3:35 pm ] |
| Post subject: | Re: Electric flaps. Help! |
Ok, got it. |
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| Author: | Bill Williams [ Wed Apr 04, 2012 3:55 pm ] |
| Post subject: | Re: Electric flaps. Help! |
The 2" travel will yield about 30 degrees flap. |
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| Author: | stug [ Wed Apr 04, 2012 4:11 pm ] |
| Post subject: | Re: Electric flaps. Help! |
Yes The original T18 drawing -742 shows the travel required as approx 2.8 inches, So llimiting the travel to 2 inches with the accuator effectively removes the 3rd stage of flap and thus avoiding the possible "bunt" issue. The -150 accuator gives 150pounds force but is there a need to go to the stronger one as mentioned in The earlier post, the suggested -240 actuator has 200 pounds of force but moves fractionally slower? |
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| Author: | Bill Williams [ Wed Apr 04, 2012 4:19 pm ] |
| Post subject: | Re: Electric flaps. Help! |
The flap handle is about 12" long with the pivot point about 2". Using the handle in flight requires about 8 pounds of force to extend the flaps, thus the 150 lbs. actuator should get the job done. The other requirement is up/down should take about 5/7 seconds. The 150 linear actuator fits this requirement. YOu are correct the 250 is about twice as slow, |
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| Author: | Lou [ Wed Apr 04, 2012 8:17 pm ] |
| Post subject: | Re: Electric flaps. Help! |
My thorp has roll trim built into the flap lever. Do most have this? Do you lose it with the electric flaps? |
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| Author: | fytrplt [ Wed Apr 04, 2012 8:47 pm ] |
| Post subject: | Re: Electric flaps. Help! |
Correct. You will lose the roll trim function which is really a method to "drag" a flap. Most of us with electric trim have a dollar sized aileron trim tab installed. |
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| Author: | Rich Brazell [ Wed Apr 04, 2012 9:36 pm ] |
| Post subject: | Re: Electric flaps. Help! |
Attachment: Picture%20002.jpg [ 691.33 KiB | Viewed 14741 times ] RB |
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