JET-X & RAPIER Jet-x & Rapier FAQS
Please be aware that there are currently production problems with Rapier products. Please check availability before placing any orders. At this time I'm not able to advise as to when a normal supply situation will resume.JET-X
Jet-X products are no longer available. I list the few items that I have left that are available for sale. If you are interested I’m happy to clear the lot in a single sale. There are only a few of each left. Get in touch.
6. JX5 2 spring motor mounts for 50 size motor £01.10
10. JX8 5 washers 50Z (thick) £02.95
19. JX16 10 boost gauzes for 35 size motor £04.00
20. JX17 5 Sleeves for boost gauzes for 35 size motor £04.00
32. JX29 1 safety motor clip 100 £02.25
33. Jet-X finger drill 1.5mm £02.00
Jetex igniter pen (Produced by John Emmett) use for wick free starting needs a "C" size high capacity NiCad cell. Now in a gold anodised finish for the millennium! at the same price! £22.99Do be aware that the new Jet-x products are not compatible with the old style Jetex
All prices plus postage and packing see Post and Packing
See "Plans" for drawings by Ian Dowsett , Malcolm Sharpe , Peter Lloyd , and Dick Twomey
See "Books" for publications by RSI
See "Kits" for PEL-AERO kits
If you want to know more about Jetex /Jete-x take a look at a site in the US run by model jet plane which gives up to date information on Jetex /Jet-x activities in the US and further airfield. A Mailing list is also available.
Rapier jet motors now in stock.
L-1
L-2
L-2LT
L-2HP
L-3
L-4
Length
mm
40
50
50
50
60
60
Inner diameter
mm
6.5
7.5
7.5
7.5
10
10
Outer diameter
mm
10
11
11
11
14.6
14.6
Overall mass
grams
5
7.3
7.3
7.3
11.6
11.6
Propellant mass
grams
2.9
4.5
4.5
4.5
6.5
6.5
Chamber mass
grams
2.1
2.8
2.8
2.8
5
5
Burn time
seconds
20
20
26
17
20
20
Mean thrust
mN
50
100
85
250
200
200
Total impulse
Ns
1
2
2
2
5
7
Price
£7.95 box of 10
£9.95 box of 10
£9.95 box of 10
£9.95 box of 10
£8.25 box of 5
£7.95 box of 5
Note that spare Jetex fuse is available and can be used, if required, with Rapiers.
BE AWARE THAT THE OUTPUT OF THE RAPIERS IS PRONE TO VARY. EACH BATCH THAT I RECEIVE ARE DIFFERENT, THE VALUES QUOTED ABOVE ARE THUS NOMINAL.
All prices plus postage and packing see Post and Packing
Discounts available for trade and club orders.
Performance details L1 Image1 L2 Image2 L3 Image3 L4 Image4
Comparison of performance Image1 Image2
Note that these thrust comparisons include the L4 at it's earlier specification. The L3 and L4 are for all intents and purposes now at the same performance level.
For interest see the attached certification issued in respect of the rapier. Image
If you want to know more visit the producers site for details see Rapier. Jan Zigmund lists ideas that will help you get the best from the Rapier engine.
A simple high performance model see PDF here for detailed drawing. Image
Rapier ignition
As an alternative to wick see ignition for an alternative electrical system.
Jetex/Jet-x designs , kits and plans can be utilised with Rapiers see above on this page.
See the product review page for further information.
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