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Search: Posts Made By: alasdair
Showing results 1 to 25 of 37
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Forum: RC Jets
06-27-2022, 04:58 PM
Replies: 5,088
Views: 1,236,940
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: 1,236,940
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: 1,236,940
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
04-06-2022, 06:44 AM
Replies: 5,088
Views: 1,236,940
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
06-19-2021, 07:12 AM
Replies: 5,088
Views: 1,236,940
Posted By alasdair

I had two Hitec 82MG mini servos, one on each...

I had two Hitec 82MG mini servos, one on each rudder.
And two Hitec 225BB servos on elevator.
Power was a 14lb thrust Wren, and it was light.
Forum: RC Jets
06-14-2021, 08:16 AM
Replies: 5,088
Views: 1,236,940
Posted By alasdair

Hi Wayne, Your F-14 is very impressive in...

Hi Wayne,
Your F-14 is very impressive in flight, and the F-5 is a beauty.
Your Falcon has the same scheme as my old one (photo below) Mine was lighter than 15 lb, but I can't remember exactly. Dry...
Forum: RC Jets
06-13-2021, 04:24 AM
Replies: 5,088
Views: 1,236,940
Posted By alasdair

Just out of interest, what does it weigh with a...

Just out of interest, what does it weigh with a 12S battery? And what capacity battery? I'm guessing 5000mAh for a decent flight time.

I had one of these models with a 14 lb thrust Wren 54. I...
Forum: RC Jets
07-09-2020, 11:28 AM
Replies: 5,088
Views: 1,236,940
Posted By alasdair

Thank you to you both. My model is a Falcon,...

Thank you to you both.
My model is a Falcon, but I posted the question in the Tornado thread as well as I knew they were geometrically similar, but the Tornado is newer.
Your answers are precise...
Forum: RC Jets
07-09-2020, 11:13 AM
Replies: 5,088
Views: 1,236,940
Posted By alasdair

Thanks for the quick response Xairflyer, The...

Thanks for the quick response Xairflyer,
The photos of my old model definately show the elevator set up from the flat bottom of the section by a large amount. But I can't measure it off the photos....
Forum: RC Jets
07-09-2020, 07:40 AM
Replies: 5,088
Views: 1,236,940
Posted By alasdair

HELP NEEDED I built and flew one of these years...

HELP NEEDED
I built and flew one of these years ago on a Wren54 and it flew great. Until on day it met a fence.
I bought a new kit and put it in storage. Now I'm thinking of building it, I cannot...
Forum: RC Jets
09-11-2019, 01:36 PM
Replies: 5,088
Views: 1,236,940
Posted By alasdair

My first Falcon 120 was 60 powered (a Wren 54 Mk3...

My first Falcon 120 was 60 powered (a Wren 54 Mk3 rated 63N, 14 lb). That was perfectly adequate for a good performance and manoeuvrability.
I used the KISS principle: fixed gear, big battery well...
Forum: RC Jets
12-27-2016, 12:15 PM
Replies: 5,088
Views: 1,236,940
Posted By alasdair

I made my own fuel tank, just over 2.2 litres. ...

I made my own fuel tank, just over 2.2 litres.

I carved a big block of blue foam (builders' insulation), the closed cell kind. I cut a large hole in the fuselage bottom and removed one former....
Forum: RC Jets
06-24-2013, 10:55 AM
Replies: 5,088
Views: 1,236,940
Posted By alasdair

RE: Bob Cat Copy Falcon 120 Jet

A Falcon 120 on a P-20!!!

That's amazing. I considered a Wren 44 gold, but fitted a Wren 54 to mine instead - and it goes really well.

How heavy is it with a P-20??
Forum: RC Jets
12-25-2012, 12:57 PM
Replies: 5,088
Views: 1,236,940
Posted By alasdair

RE: Bob Cat Copy Falcon 120 Jet

merry Xmas to you all (or, for rednecks, all y'all)
Before retiring I flew the HS 121, L1011, Boeing 747, 757, 767 and all of these had air driven instruments.
The sources for the pitot and static...
Forum: RC Jets
12-24-2012, 03:11 AM
Replies: 5,088
Views: 1,236,940
Posted By alasdair

RE: Bob Cat Copy Falcon 120 Jet

The latest Eagletree data recorders are very good for accuracy, and easy to use.
You can download the data as a stream and analyse it. You can spot and eliminate obvious errors.
If you couple the...
Forum: RC Jets
12-23-2012, 03:31 AM
Replies: 5,088
Views: 1,236,940
Posted By alasdair

RE: Bob Cat Copy Falcon 120 Jet

I believe that any of these single shot, max speed memory devices is a complete waste of time. I looked up the website, and there is no information except that it is more accurate than the previous...
Forum: RC Jets
10-09-2012, 12:56 AM
Replies: 5,088
Views: 1,236,940
Posted By alasdair

RE: Bob Cat Copy Falcon 120 Jet

It was laminating epoxy of some sort, mixed 5:1 by weight.
Sorry but I do not remember the brand, or even the supplier.
Forum: RC Jets
10-06-2012, 01:27 PM
Replies: 5,088
Views: 1,236,940
Posted By alasdair

RE: Bob Cat Copy Falcon 120 Jet

I moulded my own from fibreglass & epoxy over a blue foam plug.
Hold 2.3 litres.
Forum: RC Jets
09-06-2012, 10:01 AM
Replies: 5,088
Views: 1,236,940
Posted By alasdair

RE: Bob Cat Copy Falcon 120 Jet

Hobby King's stock of Falcon 120s did not last long. Two or three days??
They are no longer on the site.
They can be cheap because they are for propellers, and fixed gear. The description included...
Forum: RC Jets
08-27-2012, 12:05 PM
Replies: 5,088
Views: 1,236,940
Posted By alasdair

RE: Bob Cat Copy Falcon 120 Jet

Xairflyer,
I like the trailing link legs!
A very cunning way of keeping the wheels in a line, and not a lot of difficult machining.
What retract units are you using BTW??
Forum: RC Jets
08-13-2012, 04:10 AM
Replies: 5,088
Views: 1,236,940
Posted By alasdair

RE: Bob Cat Copy Falcon 120 Jet

Incredible!!!

HK is selling these models for &pound;105 plus &pound;7 carriage (yes, GBP)from the <u>UK...
Forum: RC Jets
06-06-2012, 08:12 AM
Replies: 5,088
Views: 1,236,940
Posted By alasdair

RE: Bob Cat Copy Falcon 120 Jet

I have taken out the restrictor, along with the gas solenoid valve, in both these models.
I plug in the gas cannister through a non-return valve and turn on the gas manually after the engine's first...
Forum: RC Jets
06-05-2012, 12:38 PM
Replies: 5,088
Views: 1,236,940
Posted By alasdair

RE: Bob Cat Copy Falcon 120 Jet

Does anyone else have light-up problems??

I find that my gas-start Wren in my Falcon is often a bit reluctant to start, but an identical engine in my Gripen lights on gas straight away.  The only...
Forum: RC Jets
02-01-2012, 03:31 AM
Replies: 5,088
Views: 1,236,940
Posted By alasdair

RE: Bob Cat Copy Falcon 120 Jet

I made my own tank from moulded glassfibre/epoxy. It holds about 2.25 litres and gives long flights
I don't use a UAT, just straight from the tank to the pump.

I removed one former and lengthened...
Forum: RC Jets
07-24-2011, 02:22 AM
Replies: 5,088
Views: 1,236,940
Posted By alasdair

RE: Bob Cat Copy Falcon 120 Jet

Last year (when I bought my Falcon) I checked back in the thread and people were using retracts and legs sold by Digitech specifically for the model.
Digitech no longer seem to do retracts, so does...
Showing results 1 to 25 of 37
 
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