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Search: Posts Made By: alasdair
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Forum: RC Jets
09-23-2022, 02:16 AM
Replies: 19
Views: 751
Posted By alasdair

Sounds reasonable. Unfortunately I carelessly...

Sounds reasonable. Unfortunately I carelessly wrote off the airframe.
When I build another model suitable for that engine I will keep your words in mind when setting up the fuel system.
Thanks,...
Forum: RC Jets
09-22-2022, 03:24 PM
Replies: 19
Views: 751
Posted By alasdair

Yes Jack, that's a possibility. And yet it...

Yes Jack, that's a possibility. And yet it happened only when airborne.
If the vent were restricted, and the engine on power were sucking in the header tank and main tank, then when closing the...
Forum: RC Jets
09-22-2022, 03:15 PM
Replies: 19
Views: 751
Posted By alasdair

Yes, it started up right away, no problem with...

Yes, it started up right away, no problem with the model in a level attitude, just like when it flamed out.
Forum: RC Jets
09-21-2022, 02:17 AM
Replies: 19
Views: 751
Posted By alasdair

Thanks for the input David. I take you point...

Thanks for the input David.
I take you point about full size practice, but they are squeezing the boundaries of what is possible to eek out another half percent of efficiency.
Model jets are more...
Forum: RC Jets
09-21-2022, 01:26 AM
Replies: 19
Views: 751
Posted By alasdair

I am afraid I do not remember ever checking. I...

I am afraid I do not remember ever checking.
I always use the kill switch after the event to start the cool-down.
Forum: RC Jets
09-20-2022, 10:19 AM
Replies: 19
Views: 751
Posted By alasdair

Well, this IS a new pump. The engine and all...

Well, this IS a new pump. The engine and all ancillaries lay new-in-box from 2007 until spring this year. And the problem started on flight one and has persisted.
I wondered if maybe the pump was...
Forum: RC Jets
09-19-2022, 12:21 PM
Replies: 63
Views: 5,281
Posted By alasdair

Thank you for posting Gaspar's honest explanation...

Thank you for posting Gaspar's honest explanation of the differences when burning diesel. I'll stick to kero (or JetA1) but people who struggle to obtain kero should now understand the problems and...
Forum: RC Jets
09-19-2022, 12:11 PM
Replies: 19
Views: 751
Posted By alasdair

By the way, I did get ONE flight with the engine...

By the way, I did get ONE flight with the engine running so that I could taxy back to shore, the flight before the tree got it.
I flew the whole flight without ever closing the throttle completely....
Forum: RC Jets
09-19-2022, 12:02 PM
Replies: 19
Views: 751
Posted By alasdair

Help needed: engine quits on idle

Engine in question is a Wren 44 gold (10 lb thrust) that I bought in 2007 for a model that I was planning, a delta-wing seaplane, a sort of cross between a Northstar and a CARF New Rookie (both of...
Forum: RC Jets
08-17-2022, 08:26 AM
Replies: 16
Views: 1,145
Posted By alasdair

Hi TOM and ANDRE, Have you a photo and/or...

Hi TOM and ANDRE,
Have you a photo and/or plumbing diagram to show how you connect it? Sounds interesting and might save me some experimentation.
Forum: RC Jets
08-14-2022, 07:34 AM
Replies: 29
Views: 1,619
Posted By alasdair

WOW! Very impressed.

WOW! Very impressed.
Forum: RC Jets
08-14-2022, 07:12 AM
Replies: 16
Views: 1,145
Posted By alasdair

Yes, thank you. I assume you mean the FV-6 @...

Yes, thank you. I assume you mean the FV-6 @ $28.80
2272138
The fitting I used was a cheap thing from Hobby King, and more importantly, already in my stock. I mounted it forward facing in place of...
Forum: RC Jets
08-14-2022, 07:04 AM
Replies: 16
Views: 1,145
Posted By alasdair

Yes, I agree. But this vent of mine is forward...

Yes, I agree. But this vent of mine is forward facing. See the other photo, of the underside, with the wing leading edge showing
Forum: RC Jets
08-14-2022, 07:01 AM
Replies: 96
Views: 10,352
Posted By alasdair

Hi, Glad the flights went well. I notice the...

Hi, Glad the flights went well.
I notice the "alligator skinning" is right where the ali tape is fitted inside. That stuff doesn't stop heat, it's a conductor. You might be better with a layer of...
Forum: RC Jets
08-12-2022, 12:27 PM
Replies: 16
Views: 1,145
Posted By alasdair

Update on my fuel venting problem. originally...

Update on my fuel venting problem.
originally my vent pipe ran from the bung in the DuBro tank to a simple nipple in the fuselage bottom. I used the small Tygon tube. In the photo below the vent...
Forum: RC Jets
08-10-2022, 04:40 AM
Replies: 16
Views: 1,145
Posted By alasdair

Many thanks for the tips guys. I'll try an...

Many thanks for the tips guys.
I'll try an extended vent line, maybe not as long as Wayne's, to begin with, just a big loop, up to the top of the tank and down again.
On my other jets the vent pipe...
Forum: RC Jets
08-07-2022, 03:13 AM
Replies: 16
Views: 1,145
Posted By alasdair

venting fuel?

I have a question.
https://cimg1.ibsrv.net/gimg/www.rcuniverse.com-vbulletin/1200x800/img_5218_59ae791ed9206936581ecad3ad14d64ba3cd7d66.jpg

My current O/D sport jet (called JayLow, as it's a low...
Forum: RC Jets
07-04-2022, 05:04 AM
Replies: 66
Views: 16,272
Posted By alasdair

A few days after ordering from Amazon (Dec 2020)...

A few days after ordering from Amazon (Dec 2020) I saw the same thing on Ebay, delivered from UK for 3.92 in delivery, so I bought another one.
[FYI, loads on Ebay today inc one from UK for 3.99...
Forum: RC Jets
06-27-2022, 04:58 PM
Replies: 5,088
Views: 1,145,702
Posted By alasdair

Main problem I see is that if turbine powered...

Main problem I see is that if turbine powered (and you are on a turbine themed section of RCU) it may not land.
Last year I built a turbine powered scale HS Trident, as simple as possible, and to...
Forum: RC Jets
06-26-2022, 01:45 AM
Replies: 5,088
Views: 1,145,702
Posted By alasdair

You are right. NOT a Falcon 120 at all. Maybe an...

You are right. NOT a Falcon 120 at all. Maybe an early prototype from which the Falcon was derived? Or a later balsa copy.
My Falcon 120, all the ones I have seen, had balsa wings/tail and...
Forum: RC Jets
06-23-2022, 10:29 AM
Replies: 5,088
Views: 1,145,702
Posted By alasdair

RIght you are. That's landing. Best clue is the...

RIght you are. That's landing. Best clue is the flap angle.
That was at Machrihanish (Scotland) an old RAF V-bomber base, and a backup emergency strip for NASA's space shuttle. Now rarely used.
Forum: RC Jets
05-09-2022, 11:12 AM
Replies: 180
Views: 33,072
Posted By alasdair

I have heard of 2 kinds of "electric" brakes. ...

I have heard of 2 kinds of "electric" brakes.
One kind has an electro-magnet push or pull a brake pad against a drum or disc, and the friction slows the wheel.
This must be the other kind, in which...
Forum: RC Jets
04-29-2022, 02:34 PM
Replies: 18
Views: 2,245
Posted By alasdair

Here's my own latest development, finally...

Here's my own latest development, finally finished and flying.....
Forum: RC Jets
04-06-2022, 06:44 AM
Replies: 5,088
Views: 1,145,702
Posted By alasdair

I built my Falcon 120 to the book, with fixed...

I built my Falcon 120 to the book, with fixed gear, 63N Wren MkIII (angled down 4 or 5 degrees). CG at 13", throws as specified, flap angle for landing about as much as geometry allowed (about 50...
Forum: RC Jets
10-22-2021, 01:32 PM
Replies: 715
Views: 128,338
Posted By alasdair

Paul, I am so sorry to hear about your...

Paul,
I am so sorry to hear about your unfortunate crash. It must be immensely disappointing.
You are right about the skin to framework glue. It has not contacted the skin over quite a large area....
Showing results 1 to 25 of 500
 


 
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